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"AY 10 1966 IP^MiBJiHM

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QUARTERLY RADIO NOISE DATA

December, January, February 1964-65

W. Q. CRICHLOW, R. T. DISNEY,

AND M. A. JENKINS

ov

\(((f

J. S. DEPARTMENT OF COMMERCE

NATIONAL BUREAU OF STANDARDS
THE NATIONAL BUREAU OF STANDARDS

The National Bureau of Standards is a principal focal point in the Federal Government for assuring

maximum application of the physical and engineering sciences to the advancement of technology in industry and commerce. Its responsibilities include development and maintenance of the national stand- ards of measurement, and the provisions of means for making measurements consistent with those standards; determination of physical constants and properties of materials; development of methods

for testing materials, mechanisms, and structures, and making such tests as may be necessary, particularly for government agencies; cooperation in the establishment of standard practices for incorporation in codes and specifications; advisory service to government agencies on scientific and technical problems; invention and development of devices to serve special needs of the Government; assistance

to industry, business, and consumers in the development and acceptance of commercial standards and

simplified trade practice recommendations; administration of programs in cooperation with United

States business groups and standards organizations for the development of international standards of practice; and maintenance of a clearinghouse for the collection and dissemination of scientific, technical, and engineering information. The scope of the Bureau's activities is suggested in the following

listing of its four Institutes and their organizational units. Institute for Basic Standards. Applied Mathematics. Electricity. Metrology. Mechanics. Heat. Atomic Physics. Physical Chemistry. Laboratory Astrophysics.* Radiation Physics. Radio Standards Laboratory:* Radio Standards Physics; Radio Standards Engineering. Office of Standard Reference

Data. Institute for Materials Research. Analytical Chemistry. Polymers. Metallurgy. Inorganic Materials. Reactor Radiations. Cryogenics.* Materials Evaluation Laboratory. Office of Standard Refer- ence Materials. Institute for Applied Technology. Building Research. Information Technology. Performance Test Development. Electronic Instrumentation. Textile and Apparel Technology Center. Technical Analysis.

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* Located at Boulder, Colorado 80301. ** Located at 5285 Port Royal Road, Springfield, Virginia 22171.
NATIONAL BUREAU OF STANDARDS

*€ecknicctl ^ote fS-25

ISSUED March 14, 1966

QUARTERLY RADIO NOISE DATA

December, January, February 1964-65

W. Q. Crichlow, R. T. Disney, and M. A. Jenkins

Institute for Telecommunication Sciences and Aeronomy*

Environmental Science Services Administration

Boulder, Colorado

NBS Technical Notes are designed to supplement the bureau's regular publications program. They provide a means for making available scientific data that are of transient or limited interest. Technical Notes may be

listed or referred to in the open literature.

'Formerly the Central Radio Propagation Laboratory of the National Bureau of Standards.

For sale by the Superintendent of Documents, U.S. Government Printing Office Washington D.C. 20402

Price: 40<fr

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TO NOISE FIELD STRENGTH AS A FUNCTION OF FREQUENCY

1 VlC (Megacycles)

100^ 80- h 90

1-70

60 -j h 50

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100

140

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Available from an Equivalent Short, Lossless,

Vertical Antenna in db Above ktb En= Equivalent Vertically Polarized Ground Wave R. M.S. Noise

Field Strength in db Above l/iv/meter for a Ike Bandwidth

fMc= Frequency in Megacycles.

vi
Quarterly Radio Noise Data

December, January, February 1964-65

W. Q. Crichlow, R. T. Disney, and M. A. Jenkins

Radio noise measurements are being made at eighteen stations

in a world-wide network operated in a co-operative program co-ordinated

by the Environmental Science Services Administration. The locations of

these stations are shown on the map. The results of these measurements

for the months of December, January, and February are given in this

report. Where the results for these months are not presently available,

the data will be published in subsequent reports, and the data for previous months, which are now available but have not been published previously, are included. The tabulated values are based on three basic

parameters of the noise; these are the mean power, the mean envelope

voltage, and the mean logarithm of the envelope voltage.

The noise power received from sources external to the antenna

averaged over a period of several minutes is the basic parameter and can be conveniently expressed in terms of an effective antenna noise

factor, f , which is defined by: a

f = p At b = t /t

a n o a o where

p = noise power available from an equivalent loss -free

antenna (watts)

-23

k = Boltzman's constant = 1. 38 X 10 joules per degree

Kelvin

o T = reference temperature, taken as 288 K

b = effective receiver noise bandwidth (Hz)

T = effective antenna temperature in the presence of external

a noise.
The antenna noise factors in this report are for a short vertical

antenna over a perfectly conducting ground plane and are expressed in

decibels, F_( = 10 logio^a) - This parameter is simply related to the rms

noise field strength along the antenna by:

E =F - 95. 5 + 10 log. b + 20 log._f._j

n a

to 10 b

10 MHz

where:

E = rms noise field strength for bandwidth b in db above

n

1 uV/m

b = effective receiver noise bandwidth in Hz

f. ,_ T = frequency in MHz. MHz n '

The value of E for a 1 kHz bandwidth can be found from the n

attached nomogram. It should be noted that E is the vertical component

of the field at the antenna. It should also be noted that the rms envelope

voltage is 3 db higher than the rms voltage.

The other two noise parameters tabulated are given relative to the

mean power. Thus, the mean voltage and mean logarithm expressed as

deviations, V -, and Li, respectively, are in db below the mean power.

Measurements of the three parameters reported were made with

the Environmental Science Services Administration's Radio Noise Recorder,

Model ARN-2, which has an effective noise bandwidth of about 200 Hz and uses a standard 6.6294 meter (21.75') vertical antenna. A fifteen -minute

recording is made on each of eight frequencies two at a time during each

hour, and these fifteen -minute samples are taken as representing the

noise conditions for the full hour during which they were recorded. The

month-hour medians, Fam, Vj and L^.^. are determined from these

hourly values for each of the corresponding parameters. Normally from

twenty -five to thirty observations of the mean power are obtained monthly

for each hour of the day and from ten to fifteen observations of the voltage

and logarithm deviations. When there are fewer than fifteen observations

of the mean power or seven observations of the voltage and logarithm

deviations, the tabulated values are identified by an asterisk.
The upper and lower decile values of Fa are also reported in the

following tabulation to give an indication of the extent of the variation of

the noise power from day to day at a given time of day. These are expressed in db above and below the month -hour median, Fam, and

designated by Du and D « , respectively.

In addition to these month-hour values, corresponding values are tabulated for the time blocks as defined by CCIR Report 322. All

recorded values for the four hours of the day and the three -month period are used to determine the median and decile values. When no data were

available for one or two months of the season, it is so indicated and should

be noted when considering seasonal trends.

The values presented in the tables reflect the actual measured

values of radio noise. The only editing for man-made noise or station

contamination of the records has been done by the station operators,

and no additional attempt has been made to identify these values by

systematic statistical means. These preliminary data values are presented in order to expedite dissemination of the data, and additional

analyses, in which an attempt is made to eliminate contaminated data, are presented in other publications. The parameter that will first reflect

any such contamination will be the logarithmic parameter, L^. This contamination generally will cause the value of L^ to be less than it would

have been had the recorded value been only atmospheric noise. In determining the amplitude -probability distribution from the three measured

moments [ Crichlow et al. , 1960b] contaminated values of L^ may be

found that will not give a solution of the amplitude -probability distribution. When this occurs, it is suggested that the measured value of L^

be ignored and the most probable value of L^ from the curve on the graph

of L^ vs. Vd be used. The most probable value has been determined as

the best fit for the integrated moments from over sixty measured amplitudeprobability distributions of uncontaminated atmospheric radio noise. The

second curve on the graph indicates the minimum value of L^ that will

give an amplitude -probability distribution with a form factor described in

the above reference and can, therefore, be used to determine whether

the measured value or the most probable value of Lj for any value of V^

should be used.

Station clocks are set to local standard time (LST) which is taken

from the time zone in which the station is located and is always an integral number of hours different than universal or Greenwich time (see

table on page 5). The data from the Floating Antarctic Research Vessel,

USNS Eltanin, are grouped so that a block 10° in latitude by 15° in longitude is treated as a separate station. The station clock in this case is
corrected to the LST at the center of the block. Because of this grouping, very few readings may be used to obtain the median values tabulated

in some cases. If, during the month, fewer than ten readings are

obtained for any one block, the decile values are not given. If data for

less than three months are used in the time block summaries, this fact

is noted on the summary sheet. Because of the small sample size,

some caution should be exercised when using these values.

The assistance of the station operators and other personnel of

the operating agencies in obtaining the data contained in this report is gratefully acknowledged. Stations in the recording network were operated by the following agencies:

ESSA - Bill, Wyoming; Boulder, Colorado; Byrd Station;

Front Royal, Virginia; Kekaha, Hawaii;

Warrensburg, Missouri; USNS Eltanin

U.S. Army Strategic Communications Command - Balboa, C.Z.;

Thule, Greenland

Postmaster General's Department (Australia) - Cook

Board of Telecommunications (Sweden) - Enkoping

DSIR (Great Britain) and Ahmadu Bello University, Electrical

Engineering Department, Zaria, Northern Nigeria

Ministry of Communications, Wireless Planning and Co-ordination

Organization - New Delhi

Radio Research Laboratories (Japan) - Ohira

Telecommunications Research Laboratory (South Africa) - Pretoria

Institut Scientifique Cherifien (Morocco) - Rabat

Comissao Nacional des Atividades Espaciais (Brazil) - Sao Jose

dos Campos

Department of Scientific and Industrial Research (Great Britain) - Singapore
The following publications contain additional information on

radio noise:

Clark, C. , "Atmospheric Radio-Noise Studies Based on AmplitudeProbability Measurements at Slough, England, during the International

Geophysical Year, " Proc. Inst. Elec. Engs. , Pt. B, 109, 47 , 393

(September, 1962).

Crichlow, W. Q. , A. D. Spaulding, C. J. Roubique, and R. T. Disney,

"Amplitude -Probability Distributions for Atmospheric Radio Noise,"

NBS Monograph 23 (November, 1960b).

Crichlow, W. Q. , C. J. Roubique, A. D. Spaulding, and W. M. Beery,

(January -February, I960) "Determination of the Amplitude -Probability

Distribution of Atmospheric Radio Noise from Statistical Moments, " J. Res. NBS 64D (Radio Propagation) No. 1, 49-56.

Crichlow, W. Q. , "Noise Investigation at VLF by the National Bureau

of Standards, " Proc. IRE, 45, 6 778 (1957).

Crichlow, W. Q. , D. F. Smith, R. N. Morton, andW. R. Corliss,

"Worldwide Radio Noise Levels Expected in the Frequency Band

10 Kilocycles to 100 Megacycles," NBS Circular 557, August 25, 1955.

"Report on Revision of Atmospheric Radio Noise Data, " C. C. I. R.

Report No. 65, VJIIth Plenary Assembly, Warsaw, 1956,

(International Radio Consultative Committee, Secretariat,

Geneva, Switzerland).

"World Distribution and Characteristics of Atmospheric Radio Noise, " C.C.I. R. Report No. 322, Xth Plenary Assembly, Geneva, 1963,

(International Radio Consultative Committee, Secretariat,

Geneva, Switzerland).

Fulton, F. F. (Jr.) (May-June, 1961), "Effect of Receiver Bandwidth on

the Amplitude Distribution of VLF Atmospheric Noise, " J. Res.

NBS 65D (Radio Propagation) No. 3, 299-304.

Horner, F. , "An Investigation of Atmospheric Radio Noise at Very

Low Frequencies," Proc. Inst. Elec. Engs., Pt. B, 103, 743 (1956).
Horner, F. , "Radio Noise of Terrestrial Origin," Proc. of Commission IV

on Radio Noise of Terrestrial Origin during the Xlllth General

Assembly of URSI, " London, September, I960.

Spaulding, A. D. , C. J. Roubique, andW. Q. Crichlow (November

December, 1962) "Conversion of the Amplitude -Probability Distribution

Function for Atmospheric Radio Noise from One Bandwidth to Another, "

J. Res. NBS 66D (Radio Propagation) No. 6, 713-720.

Obayashi, T. (January-February, I960), "Measured Frequency Spectra

of Very-Low-Frequency Atmospherics, " J. Res. NBS 64D ( Radio

Propagation) No. 1, 41-48.

Taylor, W. L. (September -October, 1963), "Radiation Field Characteristics

of Lightning Discharges in the Band 1 kc/s to 100 kc/s," J. Res.

NBS 67D (Radio Propagation) No. 5, 539-550.

Taylor, W. L. and A. G. Jean (September -October, 1959), "VeryLow-Frequency Radiation Spectra of Lightning Discharges, "

J. Res. NBS 63D (Radio Propagation) No. 2, 199-204.

URSI Special Report No. 7, "The Measurement of Characteristics of

Terrestrial Radio Noise, " Elsevier Publishing Co. (1962).

Watt, A. D. and E. L. Maxwell, "Characteristics of Atmospheric Noise

from 1 to 100 kc, " Proc. IRE, 45, 6 , 787 (1957).

Watt, A. D. (September -October, I960), "ELF Electric Fields from

Thunderstorms, " J. Res. NBS 64D (Radio Propagation) No. 5, 425-433.

Watt, A. D. and E. L. Maxwell, "Measured Statistical Characteristics of

VLF Atmospheric Radio Noise," Proc. IRE, 45, 1 , 55 (1957).

Watt, A. D. , R. M. Coon, E. L. Maxwell, and R. W. Plush,

"Performance of some Radio Systems in the Presence of Thermal

and Atmospheric Noise, " Proc. IRE, 46, 12, 1914(1958).
Data included in this report and the standard time for each station are as follows:

Station Data

To Convert

LST to GMT

(hours)

1965 75W +05

February 1964-65 105W +07

February 1964-65 105W +07

February 1964-65 135E -09

February 1964-65 15E -01

February 1964-65 7 5W + 05

February 1964-65 150W + 10

February 1964-65 7 5E -05

February 1964-65 135E -09

February 1964-65 30E -02

February 1964-65 45W +03

1965 90W +06

Balboa

Bill

Boulder

Cook

Enkoping

Front Royal

Kekaha

New Delhi

Ohira

Pretoria

Sao Jose

Warrensburg

January, February

December, January,

December, January,

December, January,

December, January,

December, January,

December, January,

December, January,

December, January,

December, January,

December, January,

February

Previous data from the World-Wide Network have been published

in the following technical note 18 series:

-1 July 1, 1957-December 31, 1958

-2 March, April, May 1959

-3 June, July, August 1959

-4 September, October, Novembe

-5 December, January, February

-6 March, April, May I960

-7 June, July, August I960

-8 September, October, Novembe

-9 December, January, February

-10 March, April, May 1961

-11 June, July, August 1961

-12 September, October, Novembe

-13 December, January, February

-14 March, April, May 1962

-15 June, July, August 1962

-16 September, October, Novembe

-17 December, January, February

-18 March, April, May 1963

-19 June, July, August 1963

-20 September, October, Novembe

r 1959

1959-60

r I960

1960-61

r 1961

1961-62

r 1962

1962-63

r 1963
18-21 December, January, February 1963 -64

18-22 March, April, May 1964

18-23 June, July, August 1964

18-24 September, October, November 1964

7a
MOST PROBABLE AND MINIMUM VALUES OF L

d VERSUS Vd

FOR ATMOSPHERIC RADIO NOISE

50

29

28

27

26

25 /

24 MOST PROBABLE VALUE OF L, _

23

22

21

20

19

18

17

16

15

14

u?5

o_i

LUCD

"O2

13

12 --MINIMUM VALUES OF Ld

ii m n\\/p APn np tmf pypprTFn form ii

10

9

8

7

6

5

4

3

2

I

n

2 3 6 7 8 9 10 h 12 13 14 15 V d

IN db BELOW F

Q 8

16 17 18 19 20
MONTH -HOUR VALUES OF RADIO NOISE

STATION BALBOA, CANAL ZONE LAT. 9.0 N LONG. 79.5 w

H

R FREQUENCY (Mr)

T

.013 .051 .160 .495

Fom °u Dy Vdm L dm Fnm D„ D/ Vdm L dm Fam D„ 0/ Vdm L dm Fam DL °y vdm | ^dm

00 153 4.0 5.6 • 17.0 • 17.0 134 3. 6 9,7 • 13.0 • 15.0 112 5.6 7 .7 • 11.0 • 14.8 93 4.0 7.6 • 9,8 • 13,0

01 153 4.0 4.0 • 12.0 • 16.0 134 6.2 9.9 • 14.0 • 16.0 114 5.7 8.0 • 10.5 • 13.5 94 5.0 6.8 •10.0 13.0

02 153 4.0 2.2 • 11.3 • 12.8 134 5.9 7.3 • 13.8 •15.5 114 5.9 6.4 • 10.8 • 13.5 93 6.0 6.1 • 10.8 •13.0

5 153 4.0 2.0 • 17.0 .17.0 134 6.3 6.0 • 13.3 • 13.0 110 9.9 3.9 • 12.0 • 15.0 93 6.0 4.6 • 10.0 • 14.0

04 155 2.3 4.0 •16.0 •16.0 134 5.9 6.4 •15.5 •16.5 113 5.2 10.9 •12.0 •15.3 93 6.0 6.0 •11.5 •13.0

05 153 4.0 2.0 • 14.5 • 15.0 134 3.9 6.0 • 11.5 • 15.3 110 8,0 12.8 • 9.0 • 11.5 91 6.1 11.7 • 10.0 • 12.0

6 153 5.9 2.0 »14.0 • 16.0 132 6.0 6.5 • 14.0 • 16.0 106 14.3 13.9 • 13.5 • 16.0 81 16.3 8.0 • 11.3 • 11.5

07 151 4. fa 3.7 *11.

3

• 15.5 126 12.5 8.5 •12.3 • 14,5 93 26.9 14.9 • 9.5 • 11.0 75 19.9 5.7 • 9.0 •15.0

oe 151 4.0 6.0 •10.0 •11.5 118 25.2 8.0 •12.0 •13.0 86 32.5 9.1 • 6.8 • 9.3 75 20.6 6.0 » 6.5 • 9,0

09 151 4.0 a.o • 10.3 • 13.0 • 117 • 13.3 • 13.8 86 19.7 14.6 • 12.8 • 18.5 73 13.4 4.3

10 151 4.3 2.6 • 12.0 •15.0 •119 •10.0 •12.0 88 21.8 14.1 •10.5 •14.3 72 11.0 3.0 » 7.5 •13.0

1 1 lbl 6.0 3.5 • 10.5 •14.0 120 11.6 9.2 • 8.8 •11.0 84 24.9 8.0 •10.0 •10.0 71 16.0 3.5 • 5.0 « 5.0

12 153 4.0 4.0 •10.0 •12.5 122 10.9 12.0 •10.3 •12.5 90 22.5 17.;' • 9.8 •11.5 73 U.4 4.0

3 155 3.3 5.3 • 7.0 •10.0 126 6.0 10.0 •11.0 •12.5 90 9.4 13.1 • 10.5 • 13.5 71 7.0 3.5

14 15S 2.S 4.0 • 9.5 • 12.0 128 4.7 13.4 •10.5 •11.5 92 16.7 12.7 • 7.8 • 10.3 73 10. 6.0 • 7.0 •14.0

5 155 4.0 4.0 • 10.5 •13.0 130 4.5 14.5 • 8,5 •10.5 96 13.4 17.4 • 10.0 • 14.5 77 9.6 11.9 • 4.5 • 5.5

16 155 6.0 4.0 • 12.5 •14.0 126 6.1 11.8 •10.0 •11.5 99 10.3 14.3 • 10.3 •14.0 75 9.5 5.5 •11.5 •12.5

17 153 4.1 4.0 11.0 14.0 124 9.S 15.0 •10. B • 14.8 10O 11.2 16.2 •10.5 •13.0 79 11.6 7.7 • 6,0 • 7.0

a 153 2.1 6.1 • 11.5 • 14.0 124 11.9 8.3 • 13.0 • 16.0 108 5.7 10.2 • 10.0 • 12.0 89 5.7 4.0 • 8.3 • 10,3

19 153 4.0 4.1 • 12.3 • 16.0 130 6.1 10.1 •11.0 • 14.0 110 5.7 7.9 • 10.8 • 12.3 91 5.9 4.1 » 8,8 •11.3

2 153 4.1 5.6 • 13.0 • 16. B 132 4.0 10.0 •11.8 "14.5 110 7,7 7.9 • 10.5 • 12.5 93 6.0 6.0 9.0 11.5

21 153 5.9 4.2 • 14.3 • 15.0 132 4.0 9.5 • 13.0 • 16.0 110 fa.o 6.0 • 11.0 • 15.0 91 8.0 3.5 • 9.0 •11.0

22 153 4.1 5.7 • 15.0 • 18.0 132 6.0 8.0 • 11.5 • 15.0 112 5,6 7.8 • 9.8 • 12.0 93 5.6 6.0 • 11.0 •12.0

23 153 4.0 4.0 • 16.0 • 17.

B

132 4.1 9.9 • 13.3 •14.5 112 4.0 6.0 • 10.8 • 15.5 93 4.2 6.0 •10.0 • 13.8

H

R FREQUENCY (Mc)

L

S.T

2.5 5 10 20

om °u °J Vdm L dm Fom D

u °y vdm L dm am % °4 vdm L dm om D

,l °* Vdm L dm

00 62 6.0 11.3 • 9,8 •12.5 53 8.1 8.1 • 8.5 • 9.0 33 4.3 4.0 » 6.0 • 7.0 22 5.7 2.0 » 3.3 • 4.5

01 64 6.1 12.1 • 12.0 •16.0 53 6.4 B.3 • 7.3 • 9.3 35 4.0 8.5 • 6,8 • 8.3 22 4.0 2.0 • 4,0 • 4.3

02 63 7.0 15.0 • 11.8 • 16,0 51 7.5 12.0 • 5.0 • 7,0 35 4.0 7.4 • 7.0 • 8.0 ?? 4.1 2.0 • 3.5 • 4.3

01 64 5.9 17.7 • 12.5 • 16,0 45 10.3 3.7 • 7.5 • 8.5 31 8.0 5.3 • 7.5 • 8,3 22 9.2 2.1 • 5.3 • 5.8

04 • 63 • 16.5 • 18.8 49 5.7 15.1 • 9.3 •1.0.8 33 4.9 6.0 • 5.5 • 6.0 22 6.0 2.0 • 4.5 • 5.0

03 62 9.9 12.4 60 11.8 13.1 • 8.0 •1 0.0 31 4.0 3.1 • 6.5 » 7.8 ?2 5.7 1.9

6, 51 22.' 14.1 • 9.3 •10.5 • 59 33 8.2 7.1 • 7.5 • 9.5 22 5.1 2.0 • 4,8 • 5.5

7 40 24.3 10.2 • 9.0 •14.0 59 5.5 19.6 39 8,8 4.? » 8,5 • 12.0 ?4 4.0 4.0

JH 38 25.3 9.9 • 9.3 •13.8 46 12.5 4.6 43 3.7 11.5 • 2.0 • 3.5 23 6.5 3.5 • 3.0 • 3.8

9 • 34 • 5.5 • 7.0 • 44 • 31 • 2.0 # 3.8 • 22 » 2.5 • 3.0

10 33 14.

B

11.0 • 39 31 6.1 12.1 • 7.0 • 10.0 ?4- 2.3 2.0 • 2.8 • 3.3 " 32 10.5 9.5 » 1.5 • 3.5 35 11.0 7.5 31 4.0 12.0 • 5.0 • 8.0 22 6.2 0.0 • 2.5 « 3.5

12 32 8.3 10. • 2.0 • 4.5 37 10.0 13.7 • 3.3 • 3.8 29 4.9 5.8 • 3.3 • 4.8 22 4.9 0.1 • 2.8 • 3.0

13 32 12.1 8.0 • 2.8 • 4.3 37 7.5 4.1 • 2.3 • 4.3 29 7.6 4.0 • 3.5 • 5.0 22 23.2 1.7 • 1.5 • 2.8

14 32 13.0 10.0 • 2.0 • 6.0 39 8.0 4.6 33 4.0 5.1 • 3.0 • 5.0 23 5.0 1.0 • 2.5 • 3.0

IS 37 9.9 13.9 • 2.3 • 3.8 45 5.5 13.5 33 6.0 5.8 ?6 6.0 4.0 • 2.5 • 3.5

16 4 9.2 12.3 • 7.0 • 7.0 49 10.0 7.8 • 6.5 • 9.0 37 4.3 4.3 • 4,5 « 8.0 23 9.0 1.7

7 50 11.8 14.0 • 8.5 •11.5 53 8.0 14.9 • 7.0 • 11.0 40 5.0 9.0 • 5.5 » 6.5 23 7.0 3.0 » 3.5 • 4.5

ie 56 12.0 15.1 • 7.3 • 11.

8

59 14.6 13.3 » 6.0 • 8.0 39 4.9 4.9 • S.O • 6.8 23 5.0 1.4 • 2.3 • 3.0

19 61 7.1 11.4 • 7.0 • 10.0 63 6.0 20.0 » 3.5 • 6,5 37 4.0 4.0 • 2.8 • 4,8 22 5.6 2.0 • 3.0 • 4.3

2 58 10.

J

9.9 • 7.0 • 9,6 61 7.3 19.8 • 4.8 • 7.8 34 5.2 3.2 • 4.0 • 6,0 22 4.0 2.0 • 4.0 • 4.5

21 62 6.0 12.0 • 5.3 . 7,8 61 4.0 11.5 33 6.0 4.0 • 5.0 • 6.5 22 4.0 2.0 » 3.5 o 4.0

2? 62 7,7 23.8 • 5.0 • 9,0 59 3.4 12.8 • 3.8 • 6,5 32 5.6 3.6 • 3.5 e 5.0 22 5.0 2.0 • 3.5 • 4.5

23 62 6 4 9.9 • 8.8 • 11.3 55 4.3 18.3 7.5 • 10.5 35 6.0 4.3 • 5.0 • 7.0 22 4.0 2.0 • 2.8 • 3,8

* Fewer than 15 doys data on power measurements and no computations mode for DyOndD/. "Fewer than 7 days dato on voltage and logarithmic measurements. y

F__ = median value of effective antenna noise in db above Mb.

D u= ratio of upper decile to median in db. D^ = ratio of median to lower decile in db. V^m z median deviation of average voltage in db below mean power. L (j m

= median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION HALBOA, CANAL ZONE LAT. 9.0 N LONG. 79.5 W FEBRUARY 1965

H

R FREQUENCY (Mc)

k

T

.013 .051 .160 .495 Qm t>u °y Vdm Ldm Fern °u °J Vdm L dm *am Du °/ Vdm L dm am Du oy Vd m L dm

00 153 2.7 6.0 • 11.0 • 14.8 128 10.0 23.6 •13.0 •14.0 114 8.3 8.3 • 10.0 11.0 95 4.7 8.0 10.0 12.0

01 153 4.0 6.0 • 11.3 13.8 132 8.1 8.0 •10.0 •14.0 115 7.0 9.0 • 11.0 • 13.8 95 4.5 8.5 9.5 11.0

02 153 6.0 4.0 • 11.5 14.0 132 10.0 13.8 •11.3 • 14.3 115 S.2 10.9 • 9.8 • 12.0 95| 6.0 7.5 o 9.8 •10.5

03 153 6.3 4.0 • 12.5 14.0 134 6.4 16.8 •12.0 •13.0 114 8.0 8.3 12.0 13.0 94 7.9 9.9 » 9.5 •10.0

04 153 6.0 2.5 • 13.0 15.5 132 10.0 19.3 11.0 •14.0 114 8.0 12.0 •10.0 •13.5 93 8.0 13.8 •11.5 13.3

05 153 6.0 4.0 • 13.0 •16.5 130 10.0 9.5 12.3 •14.3 112 8.3 16.3 •14.0 20.0 89 10.9 10.9 •12.0 15.0

06 153 4.5 4.0 • 11.3 • 15.8 128 9.1 10.0 12.3 •13.3 108 9.4 18.0 • 15.0 18.0 83 15.5 10.0 •11.8 15.3

07 151 5.

4.0 13.0 16.0 • 122 12.0 •14.5 100 18.0 27.1 • 12.0 16.0 83 11.3 20.0

06 151 3.5.6 • 12.0 •12.5 •116 •14.5 •17.8 104 11.2 38.6 •12.0 13.0 85 8.3 19.6 • 6.5 •10.5

9 149 4.3 4.3 • 10.5 • 13.5 118 13.1 19.1 • 12.0 •15.5 92 20.4 25.9 • 11.5 15.5 73 20.0 8.8 • 8.0 11.8

10 149 6.0 2.0 • 8.9 • 12.0 117 12.8 26.2 • 9.5 •14.0 78 33.5 7.5 • 6.5 • 10.5 71 17.2 16.4

11 151 3.1 4.0 • 9.3 • 11.0 118 10.8 12.5 • 9.0 •12.0 94 15.7 16.5 • 6.5 • 10.5 75 12.0 13.1

2 151 6.0 3.1 • 6.0 • 8.0 120 11.2 20.4 8.5 •10.0 92 11.1 12.8 • 8,3 •11.8 71 12.3 4.6 • 5.0 • 5.5

13 155 4.0 3.1 • 7.5 •11.5 124 9.9 8.6 9.U • 10.3 91 12.3 14.7 • 10.0 • 16.5 73 13.3 7.3

4 155 4.0 4.0 • 10.0 • 11.0 124 11.9 11.

12.5 15.0 96 8.0 15.5 • 5.0 • 9.0 71 16.2 12.2 • 5.5 • 5.5

5 157 4.0 4.0 12.5 • 15.3 128 7.9 18.0 •11.8 13.5 99 12.3 9.0 • 9.3 • 13.3 73 16.0 9.0

6 157 4.0 4.7 8.3 10.0 128 9.9 15.0 12.5 14.0 99 13.6 10.3 • 8.8 •11.3 77 10.9 8.6 • 9.5 •10.0

7 155 4.1 5.9 • 9.8 • 13.0 124 11.4 8.7 • 14.5 17.0 102 10.6 12.3 9.0 • 11.5 81 10.0 9.3 • 7.3 • 9.3

8 153 4.3 4.0 • 13.0 • 13.5 130 11.6 12.0 • 10.0 •11.5 110 B.7 7.4 5.5 9.0 91 6.9 6.0 • 6.0 • 8,0

9 153 6.0 4.1 12.0 14,0 132 8.0 9.5 9.5 12.0 113 7.0 7.5 8.5 11.0 9 3 8.0 6.0 • 6.8 • 8.8

20 153 6.1 6.0 • 10.0 •13.0 132 9.0 4.0 • 9.5 •12.0 114 7.0 B.n 9.5 13.0 9S 7.8 4.0 • 6.0 • 8.5

2 153 6.0 4.0 •10.5 • 13.5 132 8.6 12.6 • 10.8 •13.5 114 B.5 6.0 8.5 11.5 95 8.0 5.4 6.5 8.0

22 151 8.0 4.3 10.0 16.0 132 9.5 7.0 11.8 • 13.5 116 6.3 8.3 9.0 10.5 95 8.0 6.5 8.0 10.0

23 151 6.0 3.9 11.8 16.0 132 7.1 22.6 •12.5 • 15.5 116 6.3 10.3 10.8 12.5 95 5.8 8.0 10.0 12.0

riR. FREQUENCY (Mc)

L

S

T

2.5 5 10 20 am °U Dy

vdm Ldm am °u °y vdm L dm am D

y Dy vdm L dm Fam D

IP Dy V*n L dm

OC 63 8.3 10.0 • 9.3 11.0 59 6.3 24.6 • 6.8 • 8.5 36 4.0 8.9 • 6.5 • 8.0 ?1 3-3 0.0 5-0 • 5.0

O! 65 8.1 18.6 • 9.8 • 12.3 57 6.0 16.6 • 6.5 • 8.5 36 6.6 8.0 • 7.3 • 8.8 • 23 « 6.0 • 7.0

02 65 7.3 18.4 10.0 13.5 • 56 • 7.U 10.0 36 9.1 11.1 7.0 8.3 23 2.2 2.2 o 4.3 • 4.8

1 67 4.0 20.4 • 10.5 • 15.0 53 6.6 12.8 j « 8.3 • 10.5 34 16.6 8.0 • 7.0 • 8.5 23 1.9 2.1 tt 6.0 • 6.3

04 65 8.0 21.3 •11.0 •14.5 53 9.5 14.9 • 8.5 •10.0 34 9.7 6.0 6.U 7.0 ?3 2.0 2.7 * 7.5 • 8.3

03 62 9.1 10.3 • 10.5 •16.5 59 9.6 16.8 32 8.6 5.3 • 6.0 • 7.0 23 * 5.8 • 6.8

6 53 16.0 18.9 • 8.0 •11.0 57 7.3 23.8 • 8.8 •10.8 35 4.7 3.2 • 7.5 • 8.8 23 1.1 2.0 -9 5.0 • 8.5

7 44 14.6 16.3 • 8.0 • 13.0 57 4.1 15.9 • 7.0 •13.0 44 14.6 10.8 • 7.0 • 10.0 23 4.1 2.0 * 2.5 • 3.0

OS 35 12.8 3.4 • 4.0 • 5,0 41 10.0 7.0 46 6.2 13.9 23 2.1 2.0 » 0.5 • 1,0

09 39 5.9 14.5 • 3.0 • 4.0 39 6.0 7.7 • 6.0 •15.0 40 5.5 9.9 • 2.0 • 3.5 • 23 « 3.0 • 4.0

' 31 13.2 7.8 • 5.0 • 6.0 37 3.9 10.3 • 2.5 • 4.0 32 9.1 10.0 • 3.0 • 6.0 • 23 » 4.0 • 4.3

1 31 8.0 5.3 • 3.5 • 4,5 35 2.0 9.7 • 6.5 •11.5 • 28 • 21

2 • 27 • 2.0 • 3.0 33 6,0 8.0 • 2.8 • 2.5 29 8.2 7.8 5.8 • 8.3 • 23 3.5 • 4.0

3 29 4.1 5.6 • 4.5 • 6.0 36 3.1 9.3 • 3.0 • 4.0 30 9.0 10.0 • 4.0 • 10.0 23 3.5 2.0 « 4.3 » 5.0

14 29 12.0 7.5 3.5 • 4.3 35 4.6 6.0 • 5.5 • 6.3 32 20.0 8.6 • 5.0 6.5 25 5.1 4.1 « 7.5 • 10.0

5 31 5.0 8.0 • 39 • 5-8 " 6.3 38 6.4 8.2 • 4.5 • 6.0 25 4.6 3.9 » 4.3 • 4.8

16 35 10.0 7.5 • 6.0 • 6.5 45 8.0 9.0 • 5.0 • 9,5 38 12.3 6.6 25 3.7 4.1 « 4.5 • 7.0

17 43 8.3 7.5 • 8.5 • 11.8 47 10.3 12.1 • 6.0 • 9.0 46 10.0 17.5 • 5.5 • 7.0 24 3.0 1.0 « 6.8 • 7.8

9 53 H. 5 13.0 • 6,5 • 10.5 65 4.2 7.3 • 5.0 • 6.0 50 9.7 20.4 • 4.0 • 6.0 25 2.0 4.0 « 4.0 . 6.5

9 61 7.1 21.4 7.0 11.0 63 8.0 13.0 • 5.0 7.3 40 13.0 11.4 • 5.0 • 10.0 23 2.1 2.8 o 4.0 • 5.5

20 63 6.0 28.6 • 6.0 10.0 64 6.8 21.6 • 7.0 • 8.0 36 6.0 7.8 • 3.5 • 5.0 • 23 , 3.5 • 4.8

21 63 6.0 11.0 5.0 •10.0 63 5.5 25.5 • 6.5 • 8.8 36 5.1 8.? • 4.0 • 5.0 • 21 4.5 5.5

22 60 7 9 12.3 6.5 9.0 57 8.0 29.4 • 7.0 • 9.3 34 10.0 10.3 6.3 7.3 • 21 6.5 • 7,0

23 65 4.1 26.1 • 7.0 • 10.0 54 8.7 21.4 • 7.3 • 10.0 35 5.0 4.3 • 7.3 » 9.0 • 21 • 5.0 • 5.0

* Fewer thon 15 days data on power measurements and no computations made for DyandD^. « Fewer than 7 days data on voltage ond logarithmic measurements. / &

FQm = median value of effective antenna noise in db above ktb. D u

- ratio of upper decile to median in db. D/ = ratio ot median to lower decile in db.

V(j m

= median deviation of averoge voltoge in db below mean power.

L(j m

= median deviation of average logarithm m db below mean power.
MONTH-HOUR VALUES OF RADIO NOISE

STATION B 'L!-> WYOMING lat. *3-2 N LONG. 10S.2 w DECEMBER 1964

H

R FREQUENCY (Mc)

T

.013 .051 .160 .495

D„ V Vdm L d m >om Du D/ vdm L dm ^om Du D/ Vdm L dm am Du Dy Vdm L dm

156 4.0 4.0 10.3 16.3 130 5.6 4.1 4.3 8.0 102 9.7 7.7 7.8 13.5 84 8.0 5.9 6.5 11.3

01 156 4.0 4.0 9.5 IS.

5

130 5.7 5.9 3.3 7.3 102 10.0 6.0 7.8 13.3 82 8.1 4.0 6.0 11.0

02 156 4.1 4.0 10.3 16.3 130 4.3 2.4 3.3 6.8 102 9.7 7.0 8.0 12.8 82 7.7 6.0 6.0 11.0

i? 154 6.1 2.0 10.5 17.3 130 6.0 4.3 3.0 6.8 100 9.9 6.0 7.0 12.0 82 5.7 8.1 6.5 12.5

0" 156 4.1 4.0 10.8 17.5 130 5.7 4.1 3.5 7.5 98 10.0 8.0 6.5 10.5 80 8.0 9.6 5.5 11.0

05 154 6.1 2.1 11.0 17.5 130 4.0 4.3 3.0 7.3 96 9.6 6.1 6.0 11.0 74 9.6 6.0 6.5 11.0

6 154 4.1 3.7 10.8 17.3 128 4.0 2.0 2.5 6.5 90 5.7 6.1 7.5 12.5 66 9.5 7.7 4.3 7.0

07 154 2.1 4.0 10.0 16.3 124 4.0 4.0 2.0 5.8 82 6.6 6.0 6.5 9.5 58 8.0 8.0 2.0 5.0

OS 150 6.0 2.0 11.3 17.5 122 4.1 4.1 2.5 7.0 76 10.4 6.0 3.0 5.3 55 11.0 5.0 1.5 3.5

09 150 6.0 4.0 11.5 17.0 118 7.0 10.0 2.5 6.5 71 16.0 1.5 4.0 8.0 55 11.0 5.0 1.5 4.0

10 150 6.7 4.0 11.0 16.5 118 4.7 9.4 2.0 6.0 72 11.8 4.0 2.5 3.3 54 12.0 4.0 2.5 5.0

1

1

150 6.0 4.0 10.0 16.0 118 4.3 10.2 2.8 6.3 73 11.1 4.9 3.0 3.5 54 12.0 4.0 2.5 5.0

2 15? 4.1 4.1 10.3 15.5 118 4.2 8.2 3.0 7.0 72 10.1 3.7 3.0 4.8 56 10.0 6.0 1.5 4.5

3 152 4 .1 5.6 9.8 15.3 119 6.2 8.4 2.5 6,0 72 12.0 4.1 2.8 4.5 56 10.1 6.0 2.5 5.0

14 152 5.6 6.0 11.0 16.5 118 7.7 8.1 3.0 7.0 73 13.3 4.6 2.0 3.5 55 13.0 5.0 2.0 4.0

1 5 150 6.1 4.0 12.0 18.5 116 12.2 9.4 4.0 7.3 74 20.3 4.1 3.8 6.3 54 14.6 4.0 2.3 4.3

16 150 7.5 4.1 12.0 18.0 120 9.9 9.4 2.5 6.8 84 20.3 8.1 5.3 8.3 66 16.7 7.9 4.0 7.0

17 152 6.0 4.1 11.5 18.0 122 11.4 4.1 3.3 7.5 94 14.2 in.i 7.0 11.3 72 15.9 4.0 5.0 9.0

IS 154 4.1 6.1 12.0 19.0 124 9.6 2.0 3.0 6.5 92 17.7 5.9 6.5 11.3 80 11.6 9.7 5.3 9.0

19 152 6.1 4.0 12.5 19.0 128 5.9 4.0 2.8 6.8 96 17.2 8.0 6.8 11.3 82 13.8 8.1 5.5 9.0

20 154 6.0 5.7 13.0 19.3 128 6.1 3.7 3,0 6.8 98 14.0 6.1 8.3 12.8 84 11.9 6.0 5.5 10.0

21 154 6.0 4.0 11.3 17.0 128 8.0 2.1 3.0 7.0 102 11.9 10.0 7.8 12.8 84 10.1 6.0 6.0 10.5

22 154 7.7 2.1 10.3 16.5 128 7.7 2.0 3.8 7.3 102 11.9 7.9 8.0 13.0 86 8.0 8.1 5.0 10.0

23 154 6.0 3.7 9.8 15.8 130 5.7 4.0 3.0 7.3 102 10.1 7.5 7.5 13.0 84 8.1 6.0 5.8 10.5

HR FREQUENCY (Mc)

L

S

T.

2.5 5 10 20 dm % °J vdm Ldm am °u D/

vdm L dm am D

u °l vdm L dm am D« °y Vdn, Ldm

OO 55 5.7 4.0 3.5 6.0 53 4.1 4,0 3.5 7.5 36 7.9 6.0 2.0 3.8 25 1.0 2.5

01 53 6.3 4.0 2.5 5.5 53 3.7 5.9 3.0 6.0 36 9.9 5.7 2.5 3.8 25 0.1 0.0 1.0 2.5

2 55 4.0 6.1 3.0 6.0 53 3.7 4.1 3.5 6.5 35 7.6 4.9 2.5 5.0 25 0.1 0.1 1.0 2.5

O ) 55 5.7 3.0 3.0 6.3 53 4.0 4.1 4.0 7.0 34 9.7 4.0 2.0 3.5 25 1.7 0.0 1.0 2.5

4 55 5.9 8.0 4.0 7.0 53 4.0 4.1 3.8 7.0 34 8.1 4.1 3.0 6.0 25 2.0 0.0 1.0 2.5

05 55 5.7 7.9 3.3 6.3 54 3.2 5.0 3.5 7.0 34 6.1 4.0 2.5 5.0 25 2.0 0.0 0.5 2.5

06 51 6.3 8.0 2.8 5.0 49 5.9 4.0 4.0 6.5 36 6.0 4.1 3.0 5.0 27 1.0 2.5

07 49 3.9 7,7 4.0 6.0 49 3.9 5.7 3.5 6.3 38 5.7 3.7 2.5 5.5 27 1.9 2.0 1.8 3.3

OB 37 6.4 6.0 4.5 7.0 41 5.9 4.0 3.5 6.0 38 5.9 4.1 2.5 4.5 27 2.0 2.0 1.5 3.0

9 29 9.4 6.0 2.0 4.0 33 8.0 4.0 1.5 3.0 36 7.0 2.5 2.5 4.5 27 4.0 0.5 1.5 3.0

10 27 4.7 6.7 1.5 2.8 30 7.0 3.0 1.5 3.0 34 4.7 2.0 2.5 5.0 27 4.0 0.0 1.5 3.0

1

1 25 4.2 5.9 2.0 3.5 31 5.9 6.1 1.8 3.3 34 3.7 2.0 2.5 4.0 28 1.2 1.0 2.0 4.0

1? 25 4.3 4.0 2.0 4.0 29 6.0 7.6 2.0 3.5 34 2.0 3.6 2.8 5.3 27 3.7 1.7 1.5 3.0

13 25 4.1 2.1 1.5 3.0 31 3.6 7.6 1.5 2.5 34 4.0 2.0 3.5 5.5 27 2.1 1.7 3.0 5.0

14 27 10.0 4.1 2.0 3.5 35 3.7 6.1 1.3 3.5 37 4.6 3.1 2.8 5.5 27 2.0 2.0 2.0 3.0

15 33 8.0 7.9 1.8 3.5 47 6.0 10.0 4.3 7.8 40 4.3 4,0 2.8 6.3 27 0.0 2.0 1.5 2.5

16 39 10.6 4.0 2.5 3.5 53 8.1 6.1 2.5 5.5 40 6.3 4.0 3.0 6.0 25 2.0 0.0 1.0 2.5

i r 47 13.5 4.1 2.5 4.5 53 5.7 5.9 3.3 6.3 35 7.4 3.0 4.0 6.3 25 2.0 0.0 1.0 2.5

IB 51 11.6 4.1 3.0 5.5 53 5.9 3.9 4.0 7.0 32 5.9 2.0 2.0 4.0 25 2.0 o.o 0.5 2.0

19 51 12.1 4.0 3.0 6.0 53 5.7 4.0 3.0 7.0 30 8.1 0.0 2.0 3.8 25 2.0 0.0 0.8 2.5

20 53 9.9 4.0 3.5 7.0 55 9.5 4.1 3.5 6.5 32 9.9 2.0 1.5 3.3 25 0.1 0.0 1.0 2.5

2 1 55 6.1 6.0 3.5 6.5 57 5.7 7.7 3.5 6.0 32 9.7 2.0 1.8 3.8 25 0.1 0.0 1.0 2.5

? ? 55 5.7 4.0 3.5 7.0 55 4.0 6.1 3.5 7.0 3? 9.7 2.0 1.0 3.0 25 1.0 2.5

23 55 5.7 4.1 4.0 7.0 53 6.0 2.0 3.5 6.5 .32 8.1 2.0 1.0 3.0 25 1.0 3.0

# Fewer than 15 days doto on power measurements and no computations made for D u andD/.

ft Fewer than 7 days data on voltage and logarithmic measurements.

FQ _ = median value of effective antenna noise in db above ktb. D u

= ratio of upper decile to median in db. D/ = ratio of median to lower decile in db. V tj m

= median deviation of average voltage in db below meon power. L tj m

= median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION BILL. WYOMING LAT. 43.2 N LONG. 105.2 W JANUARY 1965

H

R FREQUENCY (Mc)

k

T

.013 .051 .160 .495

Du D/ Vdm L dm w Du Dj Vdm L dm Fom Du D/ Vdm Ldm Fom Du D/ Vdm L dm

00 152 5.3 2.0 10.0 15.0 130 7.3 4.0 3.0 7.5 96 9.0 2.3 7.0 11.8 83 10.3 7.6 6.0 11.5

01 154 3.3 4.0 8.5 14.0 131 5.6 5.0 3.0 7.5 97 15.1 5.3 6.5 12.0 84 11.0 9.5 6.5 12.8

02 154 5.3 4.0 9.0 14.5 132 4.6 4.0 2.5 7.0 98 14.3 5.0 7.0 12.0 82 9.3 9.3 6.5 11.0

03 154 4.0 2.0 8.5 14.0 132 4.6 4.0 3.5 7.5 97 14.0 7.3 6.8 13.0 83 7.0 13.6 6.0 10.0

04 154 4.0 2.0 10.0 15.5 132 4.0 4.0 3.0 7.5 99 9.5 11.5 6.5 12.0 80 8.0 14.0 6.0 11.5

05 154 3.3 4.0 10.0 16.0 132 4.0 3.3 2.5 7.5 96 11.6 U.O 6.5 12.0 77 8.3 13.0 6.8 11.8

06 153 3.0 3.0 10.5 16.0 132 3.3 3.3 3.0 7.5 89 11.3 6.0 7.0 13.0 63 14.8 6.3 5.0 9.0

07 154 0.0 4.0 10.0 16.0 124 7.8 5.3 2.3 6.0 81 4.0 8.6 7.0 10.0 54 2.0 4.0 2.3 4.3

08 150 2.0 3.3 10.0 15.5 124 3.3 2.0 3.0 7.5 71 u.o 4.0 3.5 4.5 52 4.0 2.0 1.8 3.0

09 150 3.3 4.0 9.5 14.5 120 4.2 9.6 3.0 7.5 71 10.8 6.0 2.8 4.0 53 5.3 3.0 o 3.0 • 3.0

10 150 4.8 4.6 8.8 14.0 «119 » 2.5 • 6.0 70 9.7 4.9 e 2.8 » 4.0 52 4.2 2.0 • 2.0 • 4.0 " 150 4.8 4.6 8.5 14.0 119 7.1 13.9 3.0 7.0 69 11.8 1.7 3.8 4.3 54 5.1 4.0 1.5 3.5

2 149 5.0 5.0 9.5 15.3 120 7.7 17.7 2.5 7.0 71 6.2 3.7 2.0 3.8 54 2.0 4.0 2.0 4.0

1 150 4.0 5.5 10.0 15.0 120 8.0 18.0 3.0 7.5 69 15.4 4.0 1.5 3.0 54 2.0 4.0 1.3 3.3

14 150 4.0 6.0 11.0 16.5 120 7.1 17.1 2.5 7.5 68 16.3 3.0 2.0 3.5 54 4.1 4.0 1.0 2.5

5 150 4.0 8.0 11.0 16.5 118 10.0 15.1 2.8 7.3 73 14.0 6.0 2.5 4.0 54 9.5 4.0 2.0 3.5

16 148 4.0 6.0 11.5 17.0 120 8.0 15.1 2.5 6.5 81 1S.1 10.2 5.5 8.5 58 15.6 5.1 2.5 4.0

J 148 4.0 5.1 11.5 16.3 124 5.1 3.1 3.0 7.5 89 15.1 10.0 8.5 13.5 70 15.1 8.0 4.5 8.5

8 152 4.0 7.1 11.0 17.3 128 2.0 7.1 3.0 7.5 93 12.0 14.3 7.0 12.5 76 12.6 9.3 5.0 9.8

19 150 5.1 4.2 12.0 18.5 130 4.0 6.0 2.5 7.8 91 14.2 7.1 7.0 12.5 79 10.8 9.6 4.5 10.0

£0 152 4.0 6.0 12.0 18.0 130 5.1 4.0 2.5 7.5 95 9.1 9.1 6.8 12.0 82 6.0 9.1 5.0 10.0

21 150 6.2 2.0 11.5 17.3 130 4.0 4.0 2.5 7.5 97 11.1 6.0 6.3 11.3 80 11.3 5.3 6.0 11.3

22 152 5.1 4.0 11.0 17.0 130 4.0 4.0 3.0 8.0 95 13.2 4.0 7.3 13.0 80 12.2 4.2 5.5 11.5

23 152 5.1 2.0 10.3 15.5 130 5.1 4.0 3.0 8.3 95 13.2 3.1 7.3 13.3 82 11.2 6.0 6.0 12.0

H

R. FREQUENCY (Mc)

L

ST

2.5 5 10 20

om D

u °J vdm Ldm om Du D/

vdm L dm om Du D/ vdm Ldm Fam °<l D* Vdm L dm

00 55 5.3 5.3 • 5.0 » 8.5 52 6.0 4.0 5.0 9.0 31 16.4 2.0 2.0 4.0 24 2.0 0.0 0.5 2.0

01 55 7.0 5.5 4.0 7.5 50 6.0 2.0 » 4.3 • 7.5 33 9.0 4.0 1.5 3.5 25 1.0 1.0 1.5 2.

5

02 55 6.4 6.0 3.5 7.5 52 5.3 4.0 4.5 8.5 33 7.0 2.0 2.0 4.0 26 * 1.3 • 2.8

03 54 7.6 5.0 4.5 8.0 52 4.6 4.0 • 4.5 • 7.8 33 12.4 3.3 * 1.3 4) 2.8 26 1.5 3.0

04 S3 7.5 5.5 o 4.0 • 7.0 52 5.3 5.3 4.0 7.0 34 9.6 3.0 3.5 7.0 26 1.0 2.5

03 53 6.0 6.0 3.5 7.5 52 3.5 5.5 • 3.5 » 7.8 31 5.3 3.3 • 3.5 o 5.3 26 1.3 2.0 « 1.0 • 2.5

06 49 7.3 2.0 « 3.8 o 6.0 47 5.0 6.3 4.5 8.0 35 7.5 2.0 3.0 5.5 26 1.0 2.5

07 47 7.3 2.0 » 3.5 « 5.8 46 6.0 2.0 4.0 7.0 41 3.3 4.0 • 3.3 « 6.0 26 2.0 0.0 1.0 2.5

OS 35 9.3 4.0 <• 4.8 • 7.8 41 10.8 3.0 3.0 5.0 39 9.3 3.3 * 3.0 H 5.8 26 2.0 0.1 1.0 2.5

09 29 9.0 6.0 3.3 5.0 32 6.2 2.6 2.0 3.5 37 10.3 4.0 • 2.3 a 4.3 26 2.2 0.0 1.5 3.0

10 25 6.6 6.0 • 3.0 • 4.5 • 29 • 2.0 • 3.8 36 5.4 3.0 2.5 4.5 26 3.9 0.2 1.5 3.0

1 1 23 6.6 4.0 » 2.5 » 3.5 28 2.0 5.5 1.5 3.0 35 3.9 2.0 • 2.5 « 4.5 28 2.3 2.0 • 1.5 • 2.5

12 23 9.5 4.0 » 2.0 • 4.0 28 2.0 5.9 • 2.0 • 3.5 35 5.6 2.1 • 2.5 o 5.5 28 3.5 2.0 « 2.0 • 3.5

I 3 23 7.0 4.0 • 2.5 • 4.0 27 6.7 3.1 » 3.0 • 5.0 35 6.4 2.0 e 5.0 « 8.0 26 5.5 1.5 • 2.3 • 3.5

14 25 10.3 5.1 3.0 6.0 30 11.1 4.0 3.0 5.0 37 6.6 2.0 « 5.0 o 8.0 26 2.1 2.0 » 2.0 • 3.5

15 29 15.8 6.0 5.0 9.5 36 9.3 5.3 5.0 7.5 39 5.1 0.0 <• 6.0 * 9.8 26 1.5 2.0 1.0 2.0

6 35 15.1 8.0 6.0 11.5 45 5.0 6.3 * 3.3 • 5.8 41 5.1 3.1 • 5.3 , 9.8 24 2.0 0.0 a 0.8 • 2.0

17 45 11.2 4.0 4.5 9.5 50 3.1 5.1 4.0 6.5 39 5.1 7.1 • 2.0 « 3.5 24 2.0 0.0 1.0 2.0

IS 49 11.1 4.0 4.5 9.5 50 6.0 3.1 4.5 7.0 33 8.0 4.0 2.0 3.5 24 2.0 0.0 0.5 2.0

19 51 10.2 4.0 • 3.5 « 7.3 50 6.0 4.0 5.0 8.5 31 5.1 2.0 2.5 4.5 24 2.0 0.0 1.0 2.5

20 55 8.2 6.0 5.5 11.0 52 5.1 4.0 • 3.0 « 6.0 31 3.1 2.0 1.5 3.0 24 2.0 0.0 1.0 2.5

21 55 7.1 6.0 • 4.8 • 9.3 54 3.1 3.1 o 4.5 • 8.3 31 4.0 2.0 1.0 2.5 24 2.0 0.0 1.0 2.0

2: 55 7.1 4.0 5.5 10.0 54 5.1 2.0 • 4.5 • 9.3 31 7.2 4.0 • 1.3 » 2.8 24 2.0 0.0 0.5 2.0

23 55 5.8 4.0 5.0 10.0 51 6.3 2.3 5.0 9.5 31 10.3 2.0 » 2.0 tf 3.5 24 2.0 0.0 0.5 2.0

i Fewer than 15 days data on power measurements and no computations made for DyondD/.

e Fewer than 7 days data on voltage and logarithmic measurements.

F Qm = median value of effective antenno noise in db above ktb. D u

~ ratio of upper decile to medion in db. D/ = ratio of medion to lower decile in db.

Vfj m

- median deviation of average voltage in db below mean power. Ld m

= median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION SILL. WYOMING LAT. 43.2 N LONG. 105.2 w FEBRUARY 1965

KR FREQUENCY (Mc)

k

T

.013 .051 ,160 .495 % °/ Vdm L dm ^om °u 0/ V<Jm L dm Fam Du 0/ Vdm L dm Fom Du Dy Vdm L dm

00 152 4.1 2.0 8.8 13.8 127 6.1 ?.,1 3.5 7.5 97 16.0 6.0 7.3 14.5 80 13.8 6.0 6.5 11.

01 152 5.7 1.6 8.3 13.3 128 5.1 3.1 2.5 6.8 98 12.7 8.7 8.5 15.3 79 14.8 6.6 6.5 12.0

:; 153 5.1 3.0 7.8 13.0 12-7 7.7 2.1 3.0 6.5 98 11.9 8.7 8.5 13.5 78 11.9 4.1 7.8 12.8

05 152 4.1 1.6 8.5 14.3 129 4.1 4.0 2.8 7.0 96 1*.2 8.6 8.5 15.3 76 10.3 4.0 6.3 11.3

Cm 152 4.1 2.1 9.5 15.0 129 5.6 3.6 3.3 6.8 95 13.3 9.6 9.0 13.5 76 9.9 10.0 6.5 10.5

05 152 6.0 2.0 9.5 15.0 129 7.2 4.0 3.0 7.3 91 18.0 12.0 8.0 11.5 70 13.7 7.6 6.5 9.5

6 152 4.0 3.6 9.0 14.5 129 5.6 6.1 2.0 6.5 85 12.1 8.1 8.5 11.0 61 11.1 7.0 3.8 7.5

07 152 3.6 4.0 9.8 14.5 123 6.1 2.0 2.3 6.0 73 14.3 6.1 5.5 9.0 54 4.1 4.0 1.8 3.5

08 148 5.7 4.0 9.0 13.0 121 6.0 4.1 2.5 6.5 69 19.0 6.1" 3.0 5.5 54 6.3 4.0 2.0 4.0

9 146 8.2 2.0 9.0 12.5 113 12.0 8.0 2.0 5.0 69 20.2 8.0 2.5 7.0 54 4.6 4.0 2.0 4.0

10 147 6.8 3.0 8.3 12.3 115 12.0 2.7 2.0 5.0 69 18.0 8.0 4.0 5.S 52 6.7 2.0 2.0 3.8

1 I 148 6.1 2.2 8.8 13.3 119 7.7 4.0 3.0 6.3 71 14.4 8.0 3.5 5.0 54 8.3 4.0 2.5 3.5

12 148 7.9 2.0 9.0 13.5 119 8.0 4.0 3.5 7.0 69 21.6 7.7 6.3 9.S 54 9.3 4.0 2.0 4.3

1 3 ISO 3.7 4.0 10.0 14.5 119 8.0 2.4 3.3 7.3 70 20.6 7.1 S.O 8.5 54 11.4 4.0 2.5 4.0

14 147 8.6 2.6 9.5 14.5 119 S.O 8.8 3.0 6.5 69 18.0 8.0 3.8 6.8 54 9.8 4.0 2.5 S.O

15 147 7.1 4.6 10.8 15.3 117 9.6 6.0 3.0 6.S 69 25.6 6.1 4.S 9.0 54 12.1 4.0 3.5 6.5

16 146 8.1 4.1 10.3 15.3 118 9.1 9.1 5,0 7.5 82 23.0 16.7 6.0 11.0 58 23.2 6.0 3.5 6.5

17 146 8.0 4.0 10.0 15.0 123 7.6 3.6 3.0 6.5 89 19.7 11.6 8.0 13.5 70 20.1 10.0 4.5 7.0

18 148 7.7 2.0 10.5 15.0 125 5.7 5.6 3.5 7.3 90 17.2 7.1 8.0 14.5 74 17.8 7.6 4.5 7.8

9 148 9.2 2.0 11.0 15.5 127 4.1 4.0 3.3 6.5 93 17.7 6.1 8.0 16.0 78 15.2 6.1 5.5 9.0

20 150 5.7 2.1 11.5 16.8 127 6.0 2.1 3.3 7.0 97 13.7 8.1 8.5 15.0 81 12.6 7.0 5.8 To.o

21 151 6.4 3.0 10.8 16.5 127 6.1 2.0 2.5 6.3 98 15.1 11.0 8.0 14.0 81 14.7 7.0 5.0 9.8

22 150 7.4 2.1 10.0 15.5 127 7.3 3.6 3.3 7.3 97 15.7 8.0 7.5 13.8 81 16.7 5.1 5.0 9.5

23 151 7.2 3.0 9.5 14.5 127 9.2 2.1 3.3 7.5 97 17.7 7.6 7.0 13.0 80 19.2 4.1 5.5 10.5

H

R. FREQUENCY (Mc)

L

S

T.

2.5 5 10 20 am Du DJ

vd mL dm am D

u D/

vdm L dm Fcm °u P/ vdm L dm Fnm D

.| 0j V L dm

57 10.2 5.9 4.0 7.5 52 6.2 4.0 4.0 7.5 32 6.0 2.0 3.0 4.5 26 1.0 2.5

Oi 57 9.9 6.1 4,3 7.5 S2 6.0 2.2 4.3 7.3 32 6.4 2.0 2.0 3.5 26 1.0 2.5

02 59 8.1 6.2 4.5 8.3 54 4.0 5.9 4.5 8.0 32 6.0 2.0 2.0 3.5 26 0.8 2.3

03 57 8.4 6.0 4.3 7.5 54 4.0 5.9 3.0 6.5 32 9.7 2.0 2.0 3.5 26 1.9 0.0 1.0 2.0

4 56 9.1 6.9 3.5 7.0 52 4.4 4.0 4.0 7.0 32 4.0 2.0 2.8 4.5 26 2.0 0.0 0.5 1.5

05 55 11.7 6.0 4.5 7.5 52 4.3 2.0 3.5 6.5 34 6.S 4.S 1.5 4.0 26 2.0 0.0 0.5 2.0

06 51 8.4 2.0 5.5 8.0 49 3.2 3.0 4.3 6.8 38 5.9 3.9 2.5 4.5 26 1.9 0.0 0.5 2.0

7 47 6.1 4.0 4.0 6.5 46 6.0 2.0 4.5 7.0 40 6.0 4.0 2.0 3.8 26 0.2 0.0 1.0 2.0

6 33 9.7 4.2 2.0 3.5 38 6.0 3.9 1.5 4.0 38 8.1 3.9 3.0 5.5 26 2.0 0.0 1.0 2.3

9 27 8.5 2.0 2.0 3.5 32 4.7 2.0 1.5 3.0 36 7.1 4.0 2.8 5.3 26 2.0 0.0 1.5 2.S

O 25 4.0 4.0 1.0 2.5 28 6.0 2.0 1.5 3.0 36 2.0 2.7 2.5 4.5 26 2.0 0.0 1.5 2.5

1 23 6.3 2.0 1.8 3.3 28 2.2 2.0 1.5 3.0 35 3.5 3.5 3.0 4.8 27 3.0 1.0 1.5 3.0

12 23 6.6 2.0 1.5 2.8 28 0.3 2.0 1.5 3.0 35 4.9 3.4 3.3 5.8 26 4.0 0.0 2.0 3.3

13 23 5.7 2.0 1.5 3.0 28 4.1 2.1 1.8 3.0 38 4.0 4.1 3.0 6.0 26 3.6 0.1 1.0 2.5

14 25 7.3 2.1 1.0 2.5 30 4.3 2.1 1.0 2.5 38 6.0 5.7 2.5 5.5 26 4.0 0.0 2.0 3.0

<5 27 10.3 2.1 7.0 3.0 34 6.3 3.7 2.0 3.0 42 4.1 4.6 3.0 5.0 26 3.7 2.0 1.8 3.3

16 33 14.6 4.0 1.5 2.8 42 5.9 4.0 1.5 3.8 42 6.0 4.3 3.0 6.5 24 2.0 0.0 0,5 2.0

1 7 43 15.9 2.3 2.0 3.8 52 4.1 5.7 3.0 5.5 44 7.7 7.7 • 3.0 » 6.3 24 2.0 0.0 0.5 2.0

ie 53 10.6 6.0 3,3 5.8 52 5.9 3.7 3.0 5.0 36 11.7 4.1 2.5 4.0 24 2.0 0.0 0.5 1.5

19 55 10.0 6.0 4.0 6.5 52 6.1 4.1 3.0 5.0 34 4,0 4.3 3.0 5.0 24 2.0 0.0 0.5 1.5

20 55 9.9 4.0 3.5 6.0 52 6.2 4.0 2.8 6.0 34 2.2 4.0 2.5 4.0 24 2.0 0.0 0.5 1.5

21 57 8,4 6.2 3.0 5.8 53 5.2 5.0 2.8 6.3 32 4.0 2.0 1.5 3.0 26 0.5 1.5

22 56 12.9 5.0 3.5 7.0 54 6.4 5.9 4.0 7.0 32 S.9 2.2 2.0 3.5 26 1.5 2.5

?i 56 13.0 4.9 4.0 7.5 53 5.2 4.9 4.0 7.0 32 4.0 2.3 3.0 4.8 26 1.5 2.5

# Fewer than i5 days data on power measurements ond no computations made for D u andO^.

Sc Fewer than 7 days data on voltage ond logarithmic measurements,

F Qm = medion value of effective antenna noise in db obove ktb. Dy = ratio of upper decile to median in db, D/ = ratio of median to lower decile in db.

V(j m

= median deviation of average voltoge in db below mean power. Ld m

= median deviation of average logarithm m db below mean power.
MONTH-HOUR VALUES OF RADIO NOISE

STATION BOUI.OER. COLORADO LAT. 40.1 N LONG. 105.1 w DECEMBER 196*

H

R. FREQUENCY Mc)

T.

.013 .051 .160 .495

Du D/ Vdm L d m Fflfn D„ D/ Vdm L dm ^m t>u D/ Vdm L dm Fam Du oy Vdm L dm

00 1SS 6.0 2.0 • 7.8 •16.5 135 5.9 2.3 •10.3 •16.0 •102 •11.3 •16.5 83 10. 4.0 • 0.3 •16.5

01 155 6.0 2.0 • 10.5 • 16.0 136 6.6 4.6 • 10.3 •16.3 103 10.0 10.0 • 10.0 • 15. S 83 10. 4.1 • ¥.3 •15.8

02 15S 5.1 2.0 •11.3 • 15.5 135 7.6 4.0 •10.8 •14.8 97 16.1 4.0 • 10.3 • 14.8 85 8.0 8.1 • 7.5 •14.5

03 155 7.1 2.0 •10.5 • 16.0 135 5.7 5.7 •10.3 •15.0 101 12.0 8.0 •11.0 • 16.3 83 7.5 6,0 • 8,0 •15.5

04 155 6.0 2.0 •11.3 • 16.3 135 5.6 7.6 •11.5 •17.8 • 97 •10.3 • 14.0 81 9.0 8.0 • 8.5 •16.0

05 155 6.0 5.1 •11.8 • 16.8 133 8.0 6.0 •12.8 •18.3 95 12.3 8.3 • 9,0 • 13.3 77 8.2 6.1 • 7.8 •14.0

06 153 6.0 4.0 • 13.3 • 16.8 133 5.7 5.7 •15.3 •20.5 88 3.1 7.1 • 10.0 • 15.0 67 9.4 5.6 • 5.8 •10.3

07 153 4.0 2.0 • 12.8 • 17.0 127 6.0 2.3 •13.0 • 20.0 81 6.6 4,3 • 8.8 • 14.0 65 4.1 4.1 • 3.3 • 7.0

OS 151 6.0 4.0 • 9.8 •14.5 127 6.0 2.3 •15.3 •19.3 • 80 • 9.0 •14.0 65 4.1 5.6 • 3.0 » 5.3

09 151 6.0 6.0 • 10.0 •14.3 126 5.5 9.5 •11.8 •17.8 81 6." 4.7 •14.0 • 19.3 65 7.0 4.0 • 2.8 • 5.0

10 153 6.0 6.0 •11.0 •15.5 123 7.3 13.3 •11.5 • 18.0 • 81 •12.3 •17.8 66 7.0 7,0 • 3.0 » 5.8

" 151 7.0 7.0 •10.5 • 14.8 122 8.9 18.1 •10.8 •18.3 83 6.0 5.3 •11.0 • 16.5 65 6.0 6.0 * 4.0 • 7.3

2 153 5.7 6.1 •11.3 • 15.8 126 9.0 10.5 •10.3 •18.0 • 79 •12.3 • 16.8 65 4.1 4.1

3 153 6.2 7.6 • 10.0 • 14.8 123 8.8 16.6 •10.3 •18.0 82 8.3 4.3 •12.0 •18.3 65 6.1 4.0 • 4.0 • 6.5

14 153 4.3 6.6 • 9.3 • 13.5 123 6.6 13.3 •10.5 •18.0 • 81 • 9.5 • 16.8 66 7.6 5.0 • 4.5 • 6.5

15 151 4.7 8.0 • 8.0 •11.5 123 8.2 8.9 •in. 3 •18.3 83 14.4 2.0 • 9.8 • 16.8 67 8.9 4.0 • 3.0 • 7.0

16 1*9 7.6 *.l • 9.5 • 12.0 127 7.9 14.3 •11.0 •15.3 85 24.7 4.2 • 8.3 • 14.5 69 19.1 4.3 » 3.5 • 7.5

17 IS? 7.1 7.1 •10.5 •13.5 131 5.7 6.1 •10.3 •14.8 93 16.0 6.3 • 8.0 • 14.0 78 14.8 8.7 • 3.5 • 7.0

18 155 5.5 9.5 • 11.5 •14.5 131 4.1 5.7 • 8.5 •14.3 94 13.6 7.1 • 8.0 • 14.0 80 13.3 7.1 • 6.0 •11.0

19 153 6.0 5.0 •11.5 • 15.5 133 4.1 6.0 • 8.8 •15.8 98 14.8 8.9 • 7.8 •12.5 83 15.0 8.0 a 5.3 •10.0

20 155 ».l 6.1 •12.5 • 16.3 133 6.0 4.2 •10.8 •16.5 • 97 • 8.8 • 16.0 84 14.6 7.0 v. 4.0 • 7.8

2 155 6.0 5.5 •11.0 •17.0 133 6.1 5.7 •10.3 •18.0 101 12.0 8.3 •10.8 •18.0 85 11.7 7.7 a 4.8 • 8.5

22 155 6.0 4.0 • 10.5 •15.5 135 4.0 7.9 • 8.5 •15.0 99 8,8 4.0 •11.8 • 18.0 85 11.6 8.1 • 4.5 • 8.5

2? 155 6.0 2.0 •11.3 15.0 135 6.0 8.0 • 8.8 •14.5 101 10.2 6.1 •13.3 • 19.

S

66 7.2 7.0 a 5.3 • 7.8

H

R. FREQUENCY (Mc)

L

S

T. 2.5 5 10 20

am °u °J vdm Ldm om °u <v vdm L dm am Du °^ vdm Ldm om °.! Oj v*n L dm

00 56 4.9 6.0 • 3.5 • 6.0 54 6.0 8.7 • 4.0 • 5.5 33 9.1 16.0 • 3.0 • 3.8 23 1.7 3.3 • 1.3 • 2.3

3. 54 8.0 6.0 • 3.5 tt 5.5 54 4.0 9.0 35 8.0 7.4 • 3.3 • 4.8 24 0.7 4.0 • 1.0 • 2.5

02 55 7.0 7.5 3.5 5.5 54 6.7 4.7 4 5.0 • 7.5 35 8.0 18.0 • 2.3 • 3.8 24 2.0 2.5 • 1.3 • 2.5

..''5 55 8.0 5.0 • 2.8 • 4.5 54 6.0 6.0 a 7.5 •10.0 39 4.0 10.0 • 1.0 • 2.5 2* 0.5 4.0 • 1.0 • 2.0

04 54 6.5 6.5 • 3.0 » 5.0 54 6.3 6.0 • 3.8 • 6.5 36 7.0 19.0 • 2.5 • 4.0 24 0.3 4.0 • 2.5 • 3.5

05 56 2.6 10.0 • 4.0 « 5.8 56 6.0 8.3 37 4.3 6.3 • 3.5 • 5.3 24 2.0 4.0 • 2.0 • 2.8

O 6 52 6.0 4.6 • 3.0 o 4.5 50 6.0 6.8 3.5 5.5 37 4.5 18.5 • 2.5 * 4.0 24 2.3 2.0 • 1.5 • 2.5

07 48- 4.3 4.3 • 2.5 a 4.5 48 4.1 8.0 • 3.3 » 4.5 39 4.0 4.0 • 2.0 • 3.5 26 2.0 4.0 • 2.0 • 2.5

OB 44 6.0 6.0 © 3.0 » 4.0 40 10.4 6.3 , 2.0 • 3.8 37 6.5 20.0 26 2.0 3.5 • 2.0 • 3.5

09 44 6.0 8.6 * 2.3 • 2.5 36 8.0 6.8 O 2.0 • 3.5 35 8.3 12.8 • 2.0 • 3.5 26 2.5 2.5 • 2.0 • 2.5

O 44 4.0 6.5 » 2.8 * 3.8 36 6.0 6.7 • 2.5 • 4.0 33 6.0 16.0 • 2.5 a 4.0 26 5.5 2.0 • 3.0 • 4,3

I 1 44 4.0 7.5 • 2.0 o 3.3 36 7.3 6.0 « 4.8 • 6,8 34 6.8 7.0 26 8.4 3.5 • 2.5 • 3.8

12 44 4.7 6.7 • 2.8 • 3.8 36 6.7 6.0 o 1.5 • 3.5 33 5.4 16.0 • 2.3 • 3.3 26 8.0 2.7 • 2.0 • 3.3

.3 42 6.7 2.0 • 1.5 • 2.5 36 6.9 4.0 4 1.0 • 3.0 35 2.0 4.9 • 3.0 • 4.5 26 8.9 2.0 • 2.5 « 4.0

4 44 7.1 4.0 • 1.5 a 2.8 38 7.3 5.3 « 1.8 • 2.8 33 7.5 16.0 • 1.8 • 2.5 26 2.0 2.8 • 2.0 • 3.5

5 44 5.7 3.7 * 3.0 • 3.5 42 7.6 5.6 • 4.0 • 6.0 39 5.5 9.9 • 3.0 • 5.0 26 * 1.5 • 2.5

b 46 6.7 2.7 • 1.5 o 3.0 52 9.3 2.0 • 4.5 • 7.0 39 8.0 22.0 • 2.0 • 3.0 24 2.0 2.0 • 1.0 • 2.5

7 50 10.7 2.0 2.5 4.0 54 7.2 8.0 a 5.0 • 8.0 37 6.0 5.4 • 4,0 a 6.0 24 2.0 2.0 1.0 2.5

IS 52 12.0 4.7 • 2.3 o 3.5 55 5.4 7.5 • 4.5 • 7.5 31 7.1 14.0 • 2.3 • 3.0 23 2.5 3.5 1.5 2.5

19 54 10.0 6.0 3.3 5.0 54 6.7 6.0 o 4.0 • 7.0 31 3.4 4.0 3.0 5.0 23 2.5 2.4 1.5 2.5

2 54 10.0 8.0 3.0 5.0 58 6.0 9.0 • 3.0 • 5.5 29 6.7 12.0 • 2.0 • 3.0 24 1.5 4.0 • 1.5 • 2.5

2 56 6.7 8.7 3.0 5.5 58 8.0 10.0 « 4.0 • 7.5 31 10.0 4.7 • 2.0 • 3.5 22 1.5 2.5 * 1.3 • 2.5

2 2 56 6.0 8.7 a 2.0 o 3.0 56 4.7 11.3 O 4.5 • 6.5 29 8.7 12.0 • 2.0 • 3.0 22 2.9 2.0 • 1.8 • 3.0

2 3 56 6.0 8.0 « 4.0 * 6.5 56 2.7 9.4 • 4.0 • 6,5 35 8.0 7.4 • 2.5 • 4.3 23 1.0 3.0 • 1.5 • 2.0

--: Fewer than 15 days data on power measurements and no computations mode for D u andD/. « Fewer than 7 days data on voltage ond logarithmic measurements.

FQm = median value of effective antenna noise in db obove Mb.

D u

= ratio of upper decile to median in db. D/ = ratio of median to lower decile in db. V^m 3 median deviation of average voltoge in db below mean power.

L(j m

= median deviation of average logarithm in db below mean power.
MONTH-HOUR VALUES OF RADIO NOISE

STATION BOULDER. COLORADO LAT. 40.1 N LONG. 105.1 M JANUARY 1965

H

R FREQUENCY (Mc)

k

T

.013 .051 .160 .495

D„ 0/ Vdm L d m fhm Du Dy Vdm L dm Fam Du Dy Vdm L dm Fam °u Dy Vdm L dm

15? 5.9 *.l 12.0 • 17.0 •135 • 2.0 • 6.0 • 96 • 4.5 • 6.5 80 1*.0 9.* • 7.0 •ii.5

c 15? 6.1 *.* •10.0 •16.0 •136 • 3.0 • 8.0 98 20.0 5.9 • 6.8 • 8.3 82 11.5 6.9 • 5.0 •10.0

2 15? 8.0 4.0 •11.5 • 17.0 138 6.0 6.3 • 99 • 6.5 • 10.0 82 11.1 9.1 • 5.5 • io.o

03 152 6.1 3.9 •11.0 •16.0 •138 • 3.0 • 7.5 97 15.3 6.8 * 4.0 • 5.0 78 14.5 5.0 • 5.5 • 9.5

01 15? 7.5 3.9 •13.0 • 18.5 138 6.2 6.0 • 2.5 • 7.5 • 96 • 9.5 •15.0 78 12.9 10.0 6.5 10.0

05 152 4.5 4.0 •12.3 • 17.8 136 5.3 6.0 • 3.0 • 7.3 90 21.9 5.8 •10.5 •18.5 74 11.* 8.0 • 6.5 •10.5

6 15? *.6 6.0 •12.0 • 18.8 136 2.0 4.3 • 2.3 • 6.5 • 84 • 7.0 • 7.0 68 6.0 6.0 • 4.8 • 7.0

07 152 2.6 4.0 •11.5 • 18.0 •132 • 2.5 • 7.0 82 5.3 4.5 64 3.4 6.0 • 2.5 • *.o

38 148 .7 6,0 •11.3 • 16.0 132 ?.6 2.3 • 2.5 • 7.0 • 80 63 1.9 3.9 • 2.0 • 3.5

09 148 4.8 4.0 •11.3 • 16.5 •126 • 2.0 • 6.5 82 11.* 4.1 62 *.o 4.0 • 3.0 • 4.5

10 148 4.8 8,3 •10.8 • 15.5 126 4.4 19.8 • 2.0 • 6.0 • 80 62 4.9 4.9 • 2.0 • 3.5

1 1 1*8 6.6 2.9 * 9.8 •13.5 124 6.6 18.0 • 3.5 • 6.5 • 82 63 3.5 3.5 • 1.0 • 2.5

2 148 6.5 4.0 12.0 16.5 126 6.1 20.2 • 2.0 • 5.5 • 80 62 4.0 2.9 • 2.0 • 3.3

I 150 5.8 4,9 •12.3 • 18.0 12* 6.2 18.4 • 6.5 • 8.5 8n 12.2 2.0 62 6.0 2.0 • 2.0 • 3.3

1 150 4.0 6.0 • 13.3 •19.3 •124 • 4.3 • 6.8 • 80 6* 3.3 5.3 • 2.0 • 3.5

5 1*8 5.8 8,0 • 12.5 •16.3 • 123 82 7.9 3.9 6* 2.0 3.1 • 1.5 • 2.8

16 1*8 *.7 8.7 •14.0 •19.5 •128 • 2.8 • 7.5 • 83 6* 13.8 4.0 • 2.0 • 3.3

^ 1*8 6.3 6.3 •13.3 •18.3 •132 90 17.4 10.0 70 16.0 6.0 * *.5 • 7.0

18 15? 2.9 8.0 • 13.8 • 18.0 112 2.1 7.4 • 2.8 • 7.0 • 90 • 7.5 • 7.5 76 12.2 8.0 • *.3 • 8.3

19 150 6.2 5.1 •14.

S

• 20.0 13* 3.6 4.2 93 15.5 5.2 • 7.0 • 9.0 78 12.0 6.7 • 5,0 • 9.0

20 ISO 6.0 4.0 • 14.8 • 20.5 •135 • 2.5 • 6.0 • 93 • 5.5 • 7.8 79 12.8 7.9 • 5.3 • 9.3

21 150 6,0 6.0 •12.8 • 18.3 134 3.9 6.5 • 3.8 • 7.3 98 16.1 6.2 • 5.5 • 8.3 80 14.0 6.0 • 5,0 • 9.5

22 151 5.3 7.2 • 13.5 •19.3 •132 • 3.5 • 6.5 • 96 • 7.8 • 10.0 82 11.1 8.2 • 7.0 •12.3

23 151 5.5 5.5 •12.8 •18.8 •136 • 3.5 • 7.5 •102 • 8.5 • 12.5 82 15.1 6.0 • 6.5 •10.5

H

R FREQUENCY (Mc)

L

S.T 2.5 5 10 20

am Du °y Vdm L dm Fam Du °/ Vdm L dm am °u Dy vdm L dm Fnm Du °J Vdm l-dm

00 57 6.3 4.2 « 4.8 • 7.3 55 6.1 2.2 o 5.0 • 8,5 • 35 23 0.0 2.0 a 1.3 • 2.3

01 56 7.2 3.2 * 3.5 • 6.3 54 7.1 3.0 • *.5 • 8,0 39 6.0 6.0 » 2.3 * 3.8 23 0.0 2.0 • 1.0 • 2.0

02 55 6.3 3.9 o 4.5 • 7.0 55 5.7 2.2 tt 4.5 • 7.3 • 35 23 0.3 0.3 • 1.3 • 2.5

3 55 7.7 *.o • 4.3 • 7.3 55 6.1 2.0 * 4.8 • 7.5 41 9.0 9.5 » 2.0 • 3.5 23 2.0 0.0 « 1.0 • 2.5

04 55 5.9 6.0 • 3.5 • 6.3 55 6.1 4.2 • 4.5 • 8.5 • 35 • 2.5 • 3.5 23 2.0 0.0 • 1.0 • 2.3

5 55 6.0 5.9 4.5 7.0 57 4,6 5.9 » 4.5 • 7.8 36 12.3 3.0 # 1.8 • 2.5 23 2.0 0.0 1.5 2.5

06 54 5.2 5.2 * 1.0 • 5.0 53 4.8 4.0 • 4.5 • 7.3 • 41 • 1.5 • 3.5 25 1.5 2.5

07 *9 4.0 3.9 • 3.3 • 5.0 51 4.0 4.0 « 4.0 • 5.

8

43 5.7 5.6 • 3.5 • 6.0 25 ft 1.5 • 2.8

OS 43 4.0 2.0 • 3.5 • 5.0 45 9.7 3.9 « 2.8 • 4.8 • 41 « 2.5 • 4.5 25 2.0 2.0 2.0 3.5

09 *1 4.2 1.9 ft. 2.5 • 3.5 41 1.9 4.0 • 1.5 • 3.5 40 6.6 5.0 • 3.0 • 6.0 25 2.0 1.9 ft 2.0 • 3.5

10 *3 2.0 2.0 • ?.5 • 3.5 39 5.9 2.2 • 2.5 • 4.0 • 37 25 2.0 0.0 ft 2.0 • 3.5

1

1

43 2.6 2.3 « 2.0 • 3.5 39 6.0 4.8 • 1.8 • 3.5 37 6.0 3.1 27 2.2 2.0 ft 2.0 • 3.5

12 *3 4.0 2.0 a 1.5 • 3.5 39 6.1 4,2 • 2.5 • 4.5 • 37 25 4.0 0.2 . 2.0 • 3.5

13 43 4.0 2.2 ft 2.3 • 3.3 39 6.0 4.0 • 2.8 • 4.3 37 6.0 2.0 « 3.5 • 6.5 27 0.3 2.3 • 1.8 • 3.0

14 45 2.0 2.3 z ?.0 • 3.5 41 2.3 4.0 • 2.0 • 4.0 • 39 4 2.5 a 5.0 25 2.0 2.0 • 2.0 • 3.3

[5 *5 2.0 3.0 • 2.0 • 3.0 43 6.3 2.2 « 1.0 • 3.0 41 6.1 2.0 25 2.0 2.0 • 1.5 • 3.0

16 45 8.6 2.3 • 2.0 • 3.0 50 9.0 5.5 • 3.5 • 6.0 • 45 23 4.0 0.0 • 1.5 • 2.8

1 7 49 10.1 *.6 ?.5 4.0 55 4.3 6.6 • 3.0 • 6.0 37 13.7 4.0 • 3.0 • 4.0 23 2.0 0.0 • 2.5 • 4.0

ie 51 11.9 3.9 • 7.5 •11.8 55 5.9 5.7 • 3.5 • 6.0 • 34 23 1.9 2.0 • 1.5 • 3.0

19 54 9.2 5.0 » 3.5 • 5.3 57 4.2 6.2 « 4.8 • 9.0 33 11.* 2.1 ft 3.0 • 4,0 23 0.0 2.0 • 1.0 • 2.5

20 55 9.7 5.9 » S-.O • 7.0 55 8.2 2.0 ft 3.5 • 6.5 • 33 23 0.0 2.0 • 1.0 • 2.0

21 55 11.6 4.2 « 4.0 • 6.8 58 7.2 3.2 33 *.* 2.2 ft 2.0 • 3.5 23 * 0.2 2.0 * 1.8 • 3.0

22 57 8.0 6.0 • 4.0 • 6.5 57 6.4 *.0 • 33 23 0.0 2.0 • 1.5 • 2.5

23 55 10.0 2.3 • 5.0 » 7.0 55 8.2 2<2 * 3.8 • 6.8 36 8.3 4.3 ft 2.5 • 4.0 23 0.0 2.0 « 1.0 • 2.5

i< Fewer than 15 days data on power measurements and no computations mode for D u andD^. « Fewer than 7 days data on voltage' and logarithmic measurements.

F

a _ = median value of effective antenna noise in db above ktb. D u

= ratio of upper decile to median in db. 0_£ - ratio of median to lower decile in db. Vjm

= median deviation of average voltage in db below mean power. L (j ,-p = median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION BOULDER. COLORADO LAT. 40.1 N LONG. 105.1 W FEBRUARY 1965

H

R

k

T

.013 FREQUEr*.051 CY (Mc)

.160 .495

am Du °/ Vdm Ldm Fam Du 0/ Vdm L dm M3m Du °/ Vdm L dm *om Du Dy Vdm L dm

00

010203

•152

152

153 152

6.4

8.7 6.3

9.8

5.* 2.3

9.5

9.8

9.3

11.0

1S.0 15.5

15.8 17.5

•132

•136

• 137 •138

4.5

• 4.8

• 4.5

4.3

9.5

• 9.0

• 9.3

9.0

• 93

• 91

• 98

• 91

• 7.0

• 7.5 9.5

•1*.3

•15.0

1*.0

75

• 76

• 74

• 7*

19.6 3.1 7.5

• 7.5

• 7.8

• 7,0

15.0 •15.3

•J*.8

•1*.0

04

05

0607

• 154

152 •152

150

5.1 6.6

6.0

8.0

10.8 11.8

12.0 12.3

17.5

18.0

• 18.3

17.5

• 136 •138

•138

• 13*

• 3.0

3.3

• 3.5

• 2.8

• 8.3

8.0

• 8.3

• 7.5

• 88

• 85

• 86

» 79

• 6.0 •11.5

• 5.8

• 6.3

• 10.5 •16.0

• 7.8

• 5.5

• 70

• 66

• 65

• 62

7.3

• 9.3

• 5.5

• 3.0

13.3 •16.5

• 9.5

• 6.3

0809

10

1 1

•144

•144 •1*6

•148

12.5 •12.0

•11.0

•12.0

19.0

• 18.0

• 17.0 •17.5

•130 •125

•128

•130

• 3.5

• 3.0

• 3.5

• 3.8

• 8.5

• 7.8

• 7.5

• 8.3

• 80

• 77

• 77

• 77

• 3.5

• 5.8

• 6.5

• 5.0

• 5.0 •10.0

• 11.5

• 9.5

• 62

• 62

• 62

• 62

• 3.8

2.5

• *,0

• 3.5

• 6.5

5.0

• 6.0

• 6.0

12

34

5

1*8

1*8

1*6

1**

B.*

8.0 8.*

10.1

*.2

*.l

2.*

3.7

11.5

12.0 12.5

12.5

17.5

18.0

18.0 18.5

•132

•132

130 •128

8.0 10.0

• 3.3

3.5 3.5

• 3.8

• 8.8

8.0 8.5

• 9.3

• 81

• 77

• 79

• 79

• 6.5

• 4.5

• 6.0

• 5.0

•11.5

• 9.0 •10.0 •10.5

62

62

62

6*

3.7

3.7

4.3 2.0

4.1 3.7

4.3 7.7

2.5

3.0

3.0

3.0

5.3

5.0

5.5

5.0

16

[ 7

a19

1*2

1**

1*6 1*7

12.0

11.6

11.5 10.3

2.3

2.1

4.0 3.0

•13.5

13.0

12.3 13.0

•18.8

20.0

19.3

19.0

•128

•132 •13*

•133

• 5.8

3.0

• 3.3

• 4.0

•10.0

8.0

• 8.3

• 7.5

• 86

• 81 •102

• 90

• 7.5

• 7.3

• 9.0

• 9.5

•12.5

•11.5

•16.5

«15.B

63

• 66

7*

80

12.9

18.3 U.3

4.6

8.0

10.3

3.5

• 6.0 6.5 6.5

9.0 •13.8

12.5

1*.3

20

2122

2 3

1*9

1*8

1*9

ISO

7.*

7.7

10.3 9.9

3.6

5.3

5.1 2.7

•1*.0

•l'3.0 12.0 10.5

•21.5

•19.8

17.5

16.0

•136

•136

•138

•13*

4.5

• 4.3

4.0

• 5.3

9.0

• 8.5

8.8

• 9.3

•t03

• 89

• 97

• 91

• 8.3

• 7.5

9.0

• 6.5

•15.8

•14.0

13.5 •11.8

8078

75

76

13.7

17.5 21.3

20.0

8.1

*.l 1.0

2.1

9.5

6,8

6.3

• 6.5

16.5

1*.0 12.0 •13.0

H

R. FREQUENCY (Mc)

L

S

T.

2.5 5 10 20 om D

u °J vdm L dm am Du °I vdm L dm am D

u °4 vdm L dm D

« D* Vdm L dm

56 13.0 3.0 5* 6.0 6.0 32 9.1 4.6 * 4.0 • 6.0 23 2.0 2.0 « 2.0 • 4.0

01 57 10.9 4.0 • *.o • 6.5 55 7.0 5.0 • 4.3 • 8.0 • 32 • 3.0 • 5.0 23 2.0 2.0 » 2.0 • 4.5

02 56 11.0 5.0 • *.5 • 7.5 5* 6.0 6.0 32 9.7 8.9 • 2.8 • 4.5 23 2.0 0.9 • 2.0 • 4.0

03 56 11.9 5.9 • *.3 • 7.0 5* 6.9 6.0 • 32 • 3.0 • 5.5 23 2.0 0.0 * 2.0 • 4,5

04 5* 13.6 3.9 • *.5 • 6.0 5* 7.8 7.5 • 5.0 • 9.0 32 9.7 4.0 23 2.0 0.0 2.5 • 4.5

03 51 16.6 3.8 • 4.0 • 6.3 52 9.8 8.9 • 4.5 • 7.3 • 33 • 2.8 • 5.0 23 2.0 0.9 a 2.5 • *.5

06 *9 1*.9 4.0 • 3.5 • 6.0 *S 9.1 4.0 • 4.5 • 7.5 5.7 6.0 • 2.0 • *.o 23 2.0 2.0

07 5 8.0 5.1 • 3.5 • 5.3 *6 6.0 6.0 • 5.5 « 9.0 • 38 23 2.0 1.1 o 3.0 • 5.0

06 *3 7.8 4.6 • 2.5 • *.5 40 3.5 5.5 • 3.0 • 5.5 • 37 • 4.0 • *.o 23 2.0 0.0 9 2.5 4.8

09 *3 *.0 4.0 • 3.5 * 6.0 36 5.3 4.0 • 2.0 • *.5 • 36 • 4.0 • 6.5 23 2.0 0.0 i 2.0 • 4.0

10 3 4.1 6.0 • 3.0 • 5.0 36 4.1 1.9 • 3.0 • 5.5 • 35 • 3.5 o 6.5 23 3.5 0.0 « 3.0 • 5.S

1 1 3 4.0 4.0 • 2.5 • 5.0 38 2.1 *.l • 3.0 • 5.5 • 32 25 3.7 2.0 G 3.0 • 5.5

12 *3 4.0 5.1 • 2.8 • 5.0 36 3.8 6.9 • 2.5 • 5.0 3* 7.2 3.7 • 2.5 • 4.5 25 3.1 2.0

3 *3 5.1 5.1 • 2.0 • 4.5 38 2.9 *,9 • 2.5 • 5.0 35 3.1 3.4 • 4.0 • 6.5 26 1.9 3.0 • 3.5 • 6.5

14 »3 *.9 2.9 • 2.0 • 4.0 38 6.0 4.0 • 2.5 • 5.0 • 38 • 4.5 • 7.5 25 3.1 2.0 O 2.8 * 5.0

IS *3 5.1 2.0 • 2.5 • 4.0 40 8.0 3.5 • 3.0 • 5.0 • *0 23 4.9 0.0 • 3.0 • 5.5

IE *7 6.0 6.0 • 2.8 • 4.5 46 6.0 5.3 • 3.5 • 6.0 *0 6.6 2.3 • 4.0 • 6.0 23 2.0 0.0 e 3.0 5.0

1 7 51 8.0 7.1 • 3.5 • 5.5 5* 4.0 5.1 • 3.5 • 6.8 • *2 • 3.5 • 6.0 23 0.0 2.0 2.5 4.8

IS 53 11.5 5.5 • 3.8 • 6.0 55 5.6 7.6 • 3.5 • 7.0 • 36 • 4.0 • 6.5 23 0.9 2.0 a 2.5 • *.5

19 55 12.2 5.1 • 3.8 • 6.0 56 7.1 7.1 • 4.0 • 7.0 • 31 • 3.0 0.0 23 0.9 2.0 2.5 5.0

20 56 11.0 3.9 • 4.0 • 7.0 5* 8.0 4.0 32 5.7 2.4 • 5.0 • 7.5 23 0.0 2.0 o 2.5 • 4.5

21 56 11.9 5.0 • *.o • 6.5 5* 8.0 4.9 • 4.5 • 8.0 • 30 • 4.0 • 5.3 23 0.0 2.0 o 2.0 • 4.0

22 55 14.0 2.0 • 3.3 • 6.0 55 9.0 3.0 30 4.0 1.3 • 2.0 • 4.0 23 0.9 2.0 • 2.5 • 4,5

23 57 12.0 4.0 • 3.8 • 6.0 55 5.9 3.9 * 6.0 •10.5 • 30 • 2.3 • 3.5 23 0.9 2.0 e 2.5 • 4.5

s* Fewer than 15 days data on power measurements and no computations made for Du andD/. S Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above ktb. D u

-ratio of upper decile to median in db. D/ = ratio of median to lower decile in db. v dm = median deviation of average voltoge in db below mean power.

l-dm = (nedian deviation of average logarithm in db below mean power.
MONTH-HOUR VALUES OF RADIO NOISE

STATION Ciok. Australia LAT. 31.6 S LONG. 130.4 E DECEMBER 1964

H

R FREQUENCY (Mc)

T.

.013 .051 .160 .495

om DU D/ Vdm L dm *am D

M 0/ Vdm L dm ^om Du D/ Vd m L dm am Du Dy Vd m L dm

00 16C 4.5 6.1 9.0 14.5 137 4.1 6.7 9.3 16.5 113 6.0 S.O 6.5 12.5 92 7.3 7.3 • 5.3 •11.8

01 160 4.5 4.0 8.8 14.3 136 4.9 9.0 8.3 15.0 113 4.0 7.3 6.3 11.5 H8 9.5 6.0 • 6.0 •12.5

02 158 6.0 4.0 8.3 13.8 137 4.0 6.0 8.5 15.5 111 6.0 5.5 6.3 12.8 88 10.0 5.5 • 6.5 •14.0

03 158 4.2 7.7 9.5 16.0 133 6.0 7.7 9.5 16.5 111 5.0 6.0 S.O 14.5 84 11.7 7.6 • 6.5 12.0

04 158 4.0 4.0 9.P 16.3 133 6.1 7.9 9.0 16.5 107 5.5 7.5 B.5 14.0 78 15.8 7.3 • 9.5 •15.0

5 157 3.5 3.n 10.8 17.0 123 11.2 2.1 9.5 17.0 89 16.3 6.0 • 9.0 •15.5 62 18.0 12.0 • 4.0 • 6.5

6 154 4.1 4.0 10.8 17.5 121 8.0 4.1 11.5 18.0 81 16.6 12.

• 6.5 • 9.5 48 24.0 6.0 • 4.0 • 5.5

07 154 4.0 4.2 11.5 18.3 121 4.4 8.2 11.0 19.0 85 15.0 12.0 10.5 16.3 42 31.0 4.0 • 4.0 * 5.0

oa 154 5.7 4.;> 12.8 20.0 121 6.0 6.1 10.8 19.0 87 7.6 11.6 10.0 19.0 42 24.1 4.0 • 4.5 • 7.0

09 155 5.0 5.0 13.0 20.3 121 8.0 8.0 12.0 21.5 87 6.9 9.8 8.5 15.0 40 18.7 1.9 • 2.8 • 4.0

10 154 6.0 3.1 • 13.8 • 20.8 123 8.1 8.0 11.0 19.0 85 8.3 12.0 10.0 18.0 • 42 • 4.3 • 6.5

1 1 154 6.0 6.7 12.5 20.0 127 6.0 13.2 •11.0 •19.0 90 7.5 17.0 7.0 14.0 42 11.0 4.0 • 2.5 • 4.5

12 154 6.7 6,0 10.5 18.5 127 8.0 10.0 7.5 12.5 90 9.2 13.3 5.5 9.5 42 14.8 4.0

13 156 8.0 8.0 8.0 13.5 131 6.0 14.0 7.0 12.0 91 10.1 14.3 7.0 11.0 • 40

14 • 154 » 7.0 "12.5 • 130 • 5.5 • 9.5 • 95 « 4.5 ft 8.0 « 44 • 4.5 • 7.5

1 5 159 7.0 11 .6 » 6.8 •11.9 129 9.1 9.1 * 5.3 o 9.8 95 19.6 10.8 5.8 9.8 46 21.6 7.7 • 5.0 • 7.0

16 162 4.

8.7 7.5 12.0 131 6.1 11.1 5.8 10.0 94 20.3 9.2 • 7.3 • 12.3 47 30.8 8.6 • 4.3 • 7.8

17 162 2.2 8.1 7.0 12.0 131 6.6 10.3 5.5 9.5 95 25,2 13.1 6.5 11.5 53 29.6 12.3 • 4.5 • 6.0

ie 160 2.3 11. i 7.5 12.8 131 6.8 12.8 • 6.8 •1 1.3 101 21.9 9.0 5.0 8.5 72 19.4 15.5 • 3.3 • 6.8

19 158 4.0 9.7 9.0 14.8 133 1 0.0 13.4 8.0 13.5 110 9.3 9.? 5.5 10.5 86 12.0 11.8 • 5.8 •13.5

20 160 5.0 8.0 9.8 15.5 135 7.4 12.0 6.5 11.5 112 8.8 10.8 6.0 11.0 88 11.1 6.0 • 5.0 • 8.0

21 160 5.4 6.0 10.0 15.5 137 4.6 10.3 7.8 14.3 115 5.5 9.5 6.0 10.3 90 10. 6.0 • 6.0 •12.0

22 160 5.? 8.0 9.5 15.0 137 4.3 9.9 8.8 15.5 113 4.0 8.2 5.5 10.5 90 10.0 6.2 • 5.3 •10.5

23 160 4.0 6.0 9.8 14.8 137 4.2 7.9 9.0 16.0 113 4.0 9.3 6.3 12.5 91 7.1 6.7 • 7.3 •13.3

H

R FREQUENCY (Mc)

L

S.

T.

2.5 5 10 20 am Du °J V„m L dm am °u °/ vdm L dm am D

u °4 vdm L dm am °U P* Vim, Ldm

00 65 8.0 8.0 4.5 8.5 57 6.0 5.3 4.8 8.3 45 4.0 4.0 5.0 8.3 22 2.0 2.0 # 2.5 • 3.5

65 6.0 8.0 5.5 10.5 57 7.1 4.0 4.5 8.0 43 6.0 2.1 5.0 8.0 20 2.0 0.0 • 2.5 • 3.0

,' 63 8.0 7.1 4.5 8.5 57 6.0 4.0 4.5 7.5 43 4.0 2.0 5.5 8.5 22 0.0 2.0 # 2.5 • 3.3

O 5 63 5.3 6.0 » 5.5 •10.0 59 3.3 4.1 4.5 7.8 41 6.0 3.1 5.0 8.0 22 0.0 2.0 a 2.5 • 3.5

4 61 7.1 8.0 7.0 11.5 57 4.0 3.1 4.8 8.3 39 4.0 4.0 4.5 7.5 22 0.0 2.0 « 2.5 • 3.3

05 57 8.0 6.0 6.5 11.0 54 5.0 3.0 • 5.5 • 9.0 40 6.3 2.3 5.5 9.0 22 0.0 2.0 • 2.5 • 3.5

6 43 11.1 8.0 « 7.0 •13.3 43 6.0 6.0 6.0 10.0 39 4.0 4.0 5.5 8.5 ?2 2.0 1.1 ft 4,0 • 6.3

07 33 9.3 12.0 9.5 15.0 35 10.0 8.0 8.0 13.0 33 6.0 2.0 5.3 7.3 22 2.0 0.0 * 2.5 • 4.0

08 22 11.0 3.0 7.5 11.0 27 14.6 8.0 8.0 13.0 31 4.0 4.0 4.5 7.0 22 3.3 0.0 ft 3.0 • 4.0

09 21 9.9 2.0 •6.0 • 9,0 24 9.4 7.1 7.5 11.8 27 6.1 2.0 3.5 5.0 22 2.0 2.0 ft 2.8 • 4.0

10 19 13.0 0.0 • 5.3 • 7.8 19 14.7 2.0 • 7.8 •11.5 27 4.0 3.9 4.0 5.5 22 2.0 0.2 2.5 3.8 " 19 6.4 1.0 • 5.5 • 8.0 21 10.8 4.6 8.5 13.0 27 5.9 3.9 3.5 5.0 22 4.0 2.0 3.0 4.5

12 19 22.8 0.0 • 6.0 • 9.0 19 18.3 4.0 » 6.0 • 8.0 27 9.5 4.0 3.5 5.0 22 6.0 1.7 3.0 4.5

13 19 6.5 0.0 • 5.5 •10.8 23 8.0 7.1 • 5.3 • 8.0 29 8.0 6.0 • 4.0 • 5.5 » 23 ft 3.5 • 5.5

14 • 19 • 5.5 • 8.0 • 29 • 5.3 • 9,0 33 6.3 6.3 3.5 6.3 26 4.0 4.0 3.0 5.0

IS 21 11.1 2.0 • 5.5 • 8.5 34 7.6 12.8 5.0 8,0 37 6.0 7.7 4.0 6.8 28 4.0 4.1 3.0 5.0

ie 31 13.4 12.0 • 4.0 • 6.0 39 10.0 15.0 5.3 8.5 43 4.0 9,5 4.0 7.0 26 6.0 2.0 4.0 5.5

I 7 41 10.7 15.2 4.5 8.0 45 10.0 10.0 4.0 7.5 45 4.0 4.0 4.3 7.0 28 6.0 4.0 3.5 S.O

ie 53 16.2 12.1 4.0 7.5 53 8.6 6.0 4.3 6.8 47 4.0 4.0 4,0 7.0 28 7.9 4.0 » 3.8 • 5.6

9 60 8.3 9.6 4.0 7.5 59 6.1 7.1 4.5 8.0 49 2.0 8.0 4.0 6.0 26 5.5 4.0 3.5 5.5

20 65 9.1 8.0 5.0 8.8 59 6.0 6.0 4.0 8.5 49 2.0 6.1 4.0 7.0 22 4.0 0.0 ft 2.8 • 4.3

21 67 6.0 8.0 4.5 8.0 59 6.0 4.0 • 4.0 • 7.8 55 13.5 8.0 • 7.0 • 10.0 22 4.0 2.0 ft 2.5 • 3,5

2? 65 9.1 6.1 4.8 8.0 57 6.1 5.5 4.5 8.0 53 14.1 6.0 • 7.8 •12.3 22 1.1 2.0 « 2.8 • 4.0

23 66 7.0 8.3 4.5 9.0 59 5.1 8.0 4.5 8.0 45 4.0 4.0 5.0 7.5 22 0.0 2.0 « 2.5 • 3.5

* Fewer than 15 days data on power measurements and no computations

It Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above ktb D u

= ratio of upper decile to median in db. D/ = ratio of median to lower decile in db.

V(j m

= median deviation of average voltage in db below mean power. L {j m

= median deviation of average logarithm in db below mean power.

ade for D u andD/.
MONTH -HOUR VALUES OF RADIO NOISE

STATION COOK. AUSTRALIA LAT. 30.6 s LONG. 130.4 E

H

R. FREQUENCY (Mc)

T

.013 .051 .160 .495

am °u D/ Vdm L dm *bm °u 0/ Vd m Ldm ^om °u 0/ Vdm L dm am Du 0/ Vdm L dm

OC 158 6.3 2.0 10.0 15.5 135 6.0 2.0 9.0 16.0 109 9.3 1.3 8.0 15.5 93 4.0 5.6 6.0 11.5

158 4.0 4.0 •10.

s

•16.0 133 6.0 2.0 •10.0 •17.5 109 4.7 4.0 7.5 15.0 92 5.7 5.7 6.5 12.5

158 4.6 3.3 8.5 13.5 137 4.0 6.0 9.5 15.0 113 3.3 8.0 6.5 13.0 92 5.0 6.6 6.0 12.0

01 1SB 2.7 2.7 9.5 15.5 135 4.0 4.7 9.5 16.8 109 4.7 4.7 7.3 13.3 90 3.0 6.3 6.8 13.8

04 158 3.6 4.0 9.5 15.5 135 4.0 4.0 8.8 15.3 109 6.0 6.0 7.8 14.8 87 6.1 7.1 • 7.8 •14.0

Ob 15b 4.7 2.0 10.8 17.3 129 4.0 6.0 97 2.7 6.7 •13.0 •19.3 62 6.3 9.3 • 4.0 • 7.5

155 3.6 5.0 • 9.3 •15.3 125 6.0 4.0 11.8 18.3 83 24.6 8.0 9.0 16.3 50 18.2 4.0 • 6.0 • 9.5

or 154 4.0 ?.0 • 11.3 •18.5 121 4.7 4.7 11.0 18.5 83 11.4 8.0 • 9.B • 17.0 47 8.7 7.0 • 3.0 • 4.0

oe 155 4.5 4.8 • 12.5 •19.8 121 8.0 4.0 11.3 19.5 83 22.9 6.5 • 9.8 •15.5 47 31.4 6.5 • 5.8 •10.0

09 154 4.0 2.0 13.0 21.0 121 6.0 5.5 •11.0 •20.3 83 9.0 4.0 •11.0 •18.0 47 3.9 3.1 » 9.5 •16.0

154 4.0 2.3 12.5 19.8 123 6.0 6.0 14.0 22.5 85 14.3 6.0 • 9.5 • 16.5 47 6.4 7.0 • 2.5 • 4.0

1

' 154 2.0 4.0 13.3 21.3 123 4.0 6.0 10.8 19.5 85 8.0 5.3 J> 9.0 •16.3 47 2.0 7.0 • 3.5 • 6.3

12 156 2.1 6.1 11.5 19.3 126 5.0 7.1 11.0 20.0 91 5.9 8.3 9.0 14.5 47 7.3 9.0 • 4.0 • 5.5

1 i 156 4.0 7.6 • 10.0 •16.5 127 6.0 9.4 •10.0 • 17.5 • 92 • 8.5 •15.0 • 47 •158 •10.3 •17.8 129 4.6 4.0 7.5 16.0 95 6.0 4.0 5.0 9.8 47 16.4 2.1 • 3.0 • 6.0

1 b 158 4,0 2.9 9.0 14.5 131 4.0 2.9 5.5 10,0 95 6.6 2.0 5.5 10.0 50 7.6 3.6 • 3.8 • 6.0

16 160 2.9 2.1 7.5 13.0 131 3.7 2.0 5.5 9.5 97 7.8 5.6 5.8 10.0 53 19.1 6.3 • 4.3 • 7.0

1 / 160 0.9 2.0 8.0 14.0 129 2.7 2.0 6.3 10.8 95 8,6 4.0 • 7.5 • 12.0 56 11.2 9.5 4.3 7.0

IB 160 2.1 3.6 8.0 13.0 129 5.6 2.1 6.0 10.0 103 6.0 6.0 5.3 9.5 73 9.0 7.7 5.5 9.5

I!) 158 2.0 4.0 9.0 15.5 131 4.0 2.0 8.0 13.5 107 4.9 2.0 5.5 10.0 86 4.9 7.0 4.8 9.3

20 16C 4.0 4.0 10.3 15.8 135 4.0 3.5 7.0 12.3 113 3.5 6.0 5.5 10.0 91 6.7 6.0 5.0 9.5

21 15« 4.0 2.0 11.0 18.0 135 4.9 2.0 7.5 13.5 111 3.8 4.0 5.5 11.5 91 3.5 4.5 6.0 12.0

Li 158 6.0 ?.n 11.8 17.8 137 4.0 4.0 8.0 15.0 111 6.0 5.3 6.0 12.0 92 4.1 4.1 6.8 13.3

158 3.3 4.0 • 10.5 •17.0 135 4.0 2.9 10.0 17.5 109 4.0 4.0 7.3 13.5 93 2.4 6.0 6.3 12.0

H

R FREQUENCY (Mc)

L

S

T 2.5 5 10 20 am Du °J Vdm Ldm am °u *I vdm L dm Fam °u

'°y vdm L dm am °g "V Van, L dm

00 66 2.0 4.7 • 5.5 •10.0 58 4.0 4.7 6.0 10.5 43 2.0 4.0 6.0 9.3 22 O.n 2.0 . 2.5 o 3.5

66 3.6 6.0 5.5 8.5 58 9.9 4.0 4.8 8.8 42 5.0 2.3 5.5 8.5 22 0.0 2.0 « 2.5 O 3.5

64 6.0 4.7 5.0 10.0 58 5.4 4.0 5.0 8.3 41 2.0 2.7 6.5 10.0 22 0.0 2.0 a 2.5 a 3.5

O! 64 5.6 3.3 5.0 9.0 59 5.0 3.0 4.3 7.3 39 4.0 4.0 5.0 7.0 22 o.f 2.0 *» 2.5 e 3.0

0-4 64 2.7 6.0 6.5 12.5 58 5.4 4.0 » 6.3 • 9.0 37 4.0 4.0 5.0 7.0 22 0.0 0.7 4> 2.5 f 3.5

05 62 4.0 4.0 7.5 13.0 58 6.0 4.0 5.0 9.0 37 4.0 4.0 5.0 7.0 22 0.0 0.0 » 2.5 o 4.0

06 50 5.4 8.0 • 9.5 •15.0 48 14.8 6.7 • 7.0 •11.0 39 4.0 2.0 • 6.0 » 8.5 ?2 0.7 0.0 ° 2.5 o 4.0

0/ 38 10.3 7.3 • 13.0 •18.5 38 10.6 6.0 • 8.0 •12.3 35 6.0 2.0 5.5 8.0 22 2.0 0.0 • 3.0 • 4.3

08 26 8.7 6.0 • 8.5 •10.8 29 9,9 5.0 •10.5 •16,0 31 4.7 2.0 • 5.3 • 9.5 22 0.7 0.7 a 2.5 o 4.0

09 24 10.4 4.0 • 7.0 •10.0 28 12.3 8.0 • 8.3 •J1.5 29 4.3 2.0 3.5 4.8 ?2 1.9 1.9 • 3.0 a 4.0

10 22 9.0 ?.o • 6.0 • 9.0 20 8.4 4.0 • 8.5 •11.0 27 2.0 2.0 • 3.3 • 5.0 22 1.3 0.0 • 2.5 « 4.0

1

' 20 6.1 0.0 • 7.5 • 9.3 20 6.7 2.7 • 4.3 • 5.8 27 2.0 4.0 • 4.3 • 5.8 22 2.0 0.0 o 3.0 o 3.5

12 2o 6.0 0.0 • 6.5 •10.0 20 5.2 4.0 • 4.5 • 7.0 27 4.0 4.0 • 4.3 • 6.3 22 2.0 0.0 2.5 4.0

3 20 7.0 0.0 • 7.3 •10.5 22 10.0 4.0 • 4.8 • 6.8 29 3.S 5.0 4.0 5.5 • ?4 o 3.5 • 5.3

14 • 2? • 28 • 5.0 7.5 33 3.9 2.1 • 3.8 • 6.0 ?4 4.0 2.0 4 3.0 * 5.0

! 22 15.6 2.0 • 9.5 •15.0 32 6.3 4.3 5.5 8.5 35 4.1 2.0 4.5 7.0 26 4.0 2.0 3.8 6.0

6 26 7.4 4.1 » 4.5 • 7.0 40 4.7 6.7 • 5.5 • 8.5 41 2.0 4.0 4.5 7.0 28 2.9 2.9 O 3.0 & 5.0

17 4n 7.6 7.3 4.0 6.5 46 4.0 4.0 4.5 7.0 44 2.3 2.6 4.3 7.0 ?8 4.1 4.1 3.8 5.8

18 52 4.0 4.0 4.3 7.0 54 2.2 4.0 • 4.0 • 6.8 47 2.0 3.1 4.5 7.0 ?8 4.0 4.0 e 4.5 O 6.5

19 6? 3.5 5.4 4.3 6.5 58 2.0 3.5 4.0 7.0 47 2.0 2.0 4.8 6.5 »6 7.7 4.0 « 3.5 • 4.5

20 66 4.0 4.0 • 4.0 • 6.8 60 2.0 2.9 4.0 8.0 47 2.0 4.9 • S.5 • 9.0 23 3.0 1.0 « 3.5 « 5.0

2 68 2.7 4.0 4.8 9.0 60 2.0 3.5 4.5 8.0 55 12.0 10.0 8.5 17.0 22 0.0 2.0 2.8 3.5

2 2 67 1.9 3.9 • 5.3 • 9.0 58 2.0 2.0 5.5 10.0 53 13.1 7.1 • 9.5 •11.3 22 2.0 2.0 ° 2.5 • 4.0

23 66 4.0 4.0 5.5 9.5 58 3.3 4.0 4.5 8,5 44 2.3 3.0 5.5 9.0 22 0.0 2.0 * 2.5 o 3.5

9 Fewer than 15 doys doto on power measurements and no computations made for O u andD/. S Fewer than 7 days data on voltage and logarithmic measurements.

F_m

= median value of effective antenna noise in db above Mb. D u

= ratio of upper decile to median in db.

D_/ = ratio of medion to lower decile in db. Vdm = median deviation of average voltage in db below mean power. Ld m

= median deviation of average logarithm in db below mean power.
STATION CflOK. AUSTRALIA MONTH -HOUR VALUES OF RADIO NOISE

LAT. 30.6 s LONG. 130.4 E FEBRUARY 1965

H

R FREQUENCY (Mc)

T

.013 .051 .160 .495

am °u V vdm L dm 'bm °u D/ Vdm L dm Fam °u 0/ Vdm L dm Fam D„ 0/ Vdm L dm

00 159 4.0 2.1 10.5 16.5 135 4.1 4.1 9.0 16.3 111 8.0 4.1 9.5 17.0 93 6.9 5.6 5.5 11. 5

01 •162 •139 •118 • 99

32 159 5.7 2.1 9.3 15.3 135 4.1 3.7 10.5 17.0 111 6.0 6.0 8.0 15.0 93 6.8 7.3 8.5 13.0

03 »161 • 132 •106 • 91

04 159 2.0 4.1 10.5 16.0 133 2.0 5.7 11.0 17.5 109 4.1 6.0 8.0 IS.

5

88 8.6 6.6 9.0 16.0

OS •150 • 129 •104 • Bl

Ofc 157 2.0 s.

a

10.0 17.0 125 4.0 4.1 11.5 18.0 85 19.6 5.6 • 9.5 •17.0 S7 22.3 8.1 • 6.8 •11.0

07 •151 • 122 • 79 • 48

08 155 3.6 3.6 12.5 19.5 119 5.7 2.1 12.0 20.0 87 8.2 9.8 •12.5 •20.0 49 30.6 6.0 •16.5 •29.0

9 •159 • 125 • 89 • 44

10

1 155 •161 6.0 2.0 • 12.

P

•19.8 125

• 127

6.0 6.0 13.5 21.0 91

» 97 6.0 8.0 •11.5 •21.5 49• 44 24.0 4.1 * 6.5 • 9.5

12 155 5.7 2.0 12.5 20.

a

125 5.7 2.1 10.8 19.3 89 9.6 4.0 10.5 19.5 45 24.0 1.3 • 6.3 • 9.3

13 • 159 • 123 • 93 • 50

14 •158 •12.0 •19.0 •129 • 8.0 •14.5 * 97 • 6.3 •12.3 S3 14.3 6.1 • 8.5 •15.0

1 b •158 • 127 • 97 • 55

IG 161 4.0 3.7 7.0 12.0 133 7.6 6.1 6.0 10.5 99 15.5 5.9 7.5 14.0 59 29.7 10.6 7.5 12.3

i 1 • 155 •127 * 99 • 66

IB 161 2.0 5.7 7.3 12.3 132 7.0 4.7 7.5 12.5 107 6.1 7.6 8.0 13.5 81 8.9 7.7 6.5 12.8

1 9 •161 • 135 •111 • 91

2 162 3.1 5.0 9.0 15.8 137 3.6 4.0 6.0 12.3 113 5.6 3.6 5.0 9.5 95 6.0 4.0 5.5 11.0

21 • 161 • 137 •115 • 96

22 161 3.7 3.7 in.

5

16.5 137 3.6 5.6 7.5 14.5 113 6.0 5.6 8.0 15.0 95 6.8 4.0 6.5 13.5

23 •161 • 134 •117 •100

H

R. FREQUENCY (Mc)

L

s

T. 2.5 5 10 20 om D

u °J vdm L dm om D

u °/ vdm L dm Fom °u °y vdm L dm D

ll D/ Vdr, L dm

OO • 72 <t 4.0 • 7.3 • 61 •'5.0 • 8.0 • 47 • 5.5 • 9.0 • ?1

01 65 8.1 4.1 6.5 11.0 58 9.5 3.6 5.0. 8.0 42 5.8 4.1 5.0 8.5 22 '1.9 0.0

02 <• 7fl • 4.0 • 8.0 • 61 • 3.5 • 6.0 • 47 • 5.5 • 9.0 • 23

03 65 6.8 4.0 6.3 12.0 60 3.3 4.1 • 4.5 • 7.5 38 4.0 5.7 5.5 7.5 22 1.8 0.0

4 • 69 • 5.0 • 8.8 • 61 • 5.0 •13.5 <t 44 » 7.5 •11. • 23

5 63 7.8 4.0 7.0 12.0 58 6.3 3.7 • 5.0 • 8.5 34 5.7 3.6 4.0 6.0 22 1.9 0.0

6 • 58 • 73 • 41 • 23

07 43 12.0 6.0 • 6.5 • 13.5 41 8.6 3.3 6.5 10.5 38 2.1 4.0 • 4.3 • 6.3 22 2.1 0.0 • 3.0 • 4.5

8 • 2H • 33 « 7.5 •11.5 • 35 • 4.0 • 6.S • 25 » 3.0 • 4.5

09 '• 25 • 6.8 » 9.0 28 7.4 8.0 •10.0 •14.0 30 3.2 2.0 • 4.3 » 6.3 22 2.0 0.0 • 3.5 • 6.0

• 27 • 33 » 6.0 • 8.5 • 25 • 2.5 • 4.5

I • 25 • 5.3 » 9,0 22 10.3 4.0 » 6.3 • 9.0 26 6.0 1.9 • 4.5 • 5.8 22 2.9 0.0 • 3.0 • 4.8

12 » 25 • 5.5 • 9.0 • 28 • 5.0 • 8.0 • 23 • 3.0 • 5.5

13 • 26 • 7.0 • 8.5 24 5.7 4.6 • 5.5 » 9.5 28 4.5 2.? • 5.0 • 7.5 • 24 • 3.8 • 5.5

14 • 27 • 4.0 » 7.3 • 33 • 3.8 • 6.8 • ?4 • 3.0 • 5.5

IS 27 17.7 ?.0 • 5.0 • 7.5 36 6.0 6.0 5.3 8.5 36 4.1 4.0 4.3 7.3 26 2.1 3.7 3.3 5.0

16 • 27 • 2.5 • 5.0 • 41 • 3.0 • 6.8 • 42 • 5.0 • 8.3 • 27 • 3.0 • 5.0

1 45 11.7 9.3 4.0 7.5 48 7.9 5.9 • 4.0 » 8.5 44 5.8 3.6 4.5 7.5 26 3.6 4.1 • 3.0 » 5.3

8 • 58 • 5.8 •10.0 • 55 • 5.5 • 7.8 • 47 • 2.5 • 5.5 • ?6 • 3.5 • S'.O

19 63 7.7 2.1 • 4.0 • 6.5 60 2.8 3.6 • 4.0 • 7.5 48 3.0 4.0 4.5 7.0 24 5.7 2.1 • 2.8 • 4.5

20 • 68 • 5.5 • 9.0 • 63 • 4.0 • 7.5 • 51 « 3.5 • 6.5 • 21

,'i 69 4.0 4.1 5.0 9.5 62 1.9 4.1 5.0 8.5 60 12.0 14.3 6.5 10.5 22 0.0 2.0 • 2.5 • 4.0

i.d • 70 • 4.5 • 9.0 • 60 • 4.3 » 7.8 • 54 • 7.5 12.3 • 21 • 2.5 • 4.0

23 67 5.8 4.0 • 5.5 • 9.3 58 3.6 3.6 • 3.3 • 6,8 44 3.1 5.6 4.5 8.0 22 1.8 0.0 • 2.5 « 4.0

ft Fewer than 15 days data on power measurements and no computations made for Du andD/. W Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above ktb. D u

= ratio of upper decile to median in db. D/ = ratio of median to lower decile in db.

V(j m

= median deviation of average voltage in db below mean power. L^ m

= median deviation of average logarithm in db below mean power.
MONTH-HOUR VALUES OF RADIO NOISE

STATION ENKOPINGi SWEDEN LAT. 59.5 N LONG. 17.3 E DECEMBER 1964

H

R FREQUENCY (Mc)

k

T

-.013 .051 .160 .495

°u °/ Vd m . L dm ^am Du °I Vdm L dm ^om Du °4 Vdm L dm 'dm Du °y Vdm L dm

00 152 2.0 4.0 9.5 15.0 117 4.0 2.2 7.8 12.5 99 5.5 4.0 • 5.0 » 9.0 • 99 • 2.0 • 2.5

01 150 2.0 2.0 10.0 16.0 117 7.5 4.0 9.0 13. a 103 4.1 6.1 • 4.5 • 7.8 99 6.3 8.3

02 150 2.0 3.3 10.5 16.5 117 5.9 4.1 9.5 14.5 101 5.7 7.9 • 6.0 •10.3 » 99 • 1.0 * 1.0

03 150 3.5 2.0 11.0 16.8 117 6.1 4.0 8.5 14.0 105 4.0 9.5 • 3.3 a 6.8 • 95

4 150 2.0 3.5 11.0 17.0 117 4.7 6.0 7.5 12.5 « 99 • 5.0 • 9.0 • 93

05 150 2.0 3.5 11.0 17.3 115 6.7 6.0 10.0 16.3 99 4.1 3.9 • 3.5 • 7.5 89 8.2 16.8 • 1.0 • 1.0

6 150 2.0 3.3 11.0 17.3 115 8.0 6.0 11.0 16.5 107 6.0 4.0 • 6.0 •11.0 • 85 • 2.0 • 2.5

07 150 3.6 4.1 12.0 18.3 113 6.0 4.1 9.B 15.5 •106 • 5.3 • 10.0 65 18.0 9.1 • 0.5 • 2.5

OS 148 4.0 3.7 11.5 17.5 •107 9.8 14.5 • 91 • 5.0 • 9.0 • 67 • 1.0 • 2.5

09 146 3.7 4.0 11.5 17.8 • 103 « 9.3 •14.8 • 94 • 8.5 •11.0 • 74 • 2.5 • 4.5

10 144 5.6 4.1 11.0 17.5 •101 •10.8 •16.8 • 91 65 8.6 12.0 • 1.5 • 2.5

144 3.1 3.1 10.0 16.5 » 98 •12.3 •18.5 • 97 • 4.0 • 7.0 • 64 • 1.0 • 3.U

12 144 2.9 2.0 9.3 14.5 a Q4 •10.0 •14.3 • 95 • 71 • 1.8 • 2.3

I 1 144 4.0 2.0 7.8 13.3 • 97 11.5 15.0 • 91 • 3.0 • 7.5 73 12.3 12.0 • 1.5 • 1.8

14 144 2.5 2.0 8.0 12.8 •101 •11.0 •15.0 89 6.1 4.3 • 5.0 • 8.3 • 85 • 0,8 • 1.0

IS 144 5.5 2.0 6.8 11.8 • 105 •13.0 •17.3 • 93 • 5.0 • 8.0 • 85 • 1.0 • 1.3

16 146 2.1 2.1 8.0 12.5 109 3.8 7.8 10.5 16.0 95 4.8 8.3 • 4.0 • 8.0 • 81 • 1.5 • 2.5

17 148 2.0 3.5 7.5 12.3 111 6.0 4.3 9.0 13.0 95 7.5 8.1 • 6.5 •10.0 87 12.3 9.7 • 1.3 • 1.5

18 148 3.6 2.1 7.5 12.0 113 6.0 2.1 5.8 10.3 97 8.3 6.1 • 5.0 • 9.0 94 7.1 26.5 • 2.8 • 3.8

i9 149 3.0 3.0 7.5 12.5 115 6.0 4.0 6.8 "11.0 99 6.0 4.9 • 4.5 • 9.0 93 6.6 5.6 • 2.8 • 3.3

20 150 2.0 4.0 7.0 11.5 117 3.6 4.1 7.3 11.5 99 6.0 6.0 • 5.3 •10.0 99 4.2 6.6 • 3.0 • 3.3

21 150 2.0 4.0 6.8 11.3 115 6.1 2.1 8.0 12.8 100 9.3 5.2 • 6.3 • 9.8 101 4.0 8.0 • 1.5 • 1.5

22 152 7.8 13.0 117 4.0 4.0 7.5 12.0 100 6.9 5.4 • 3.0 • 6.5 •100 • 2.0 • 2.0

?! 152 0.0 4.0 7.8 13.0 117 4.0 4.1 7.5 12.0 101 5.2 7.8 • 2.5 • 6.5 •100 • 2.0 • 2.3

H

R. FREQUENCY (Mc)

L

S.T

2.5 5 10 20 am D

u °y vdm L dm am Du a4

vdm L dm Fam D

u °A vdm L dm fam °u °* Vtfm L dm

OO • 54 o 5.0 « 7.5 51 7.5 2.0 4.0 7.3 35 4.3 4.0 2.5 4.5 22 0.0 3.5 1.0 3.0

01 56 3.3 4.0 « 5.0 « 7.5 58 9.0 10.5 o 6.5 • 9.3 35 6.0 4.0 2.8 4.5 22 0.0 4.0 1.0 2.5

02 56 2.1 2.1 o 5.0 « 7.5 55 8.0 .6.7 5.3 8.3 35 6.0 4.0 3.5 5.5 20 2.0 2.0 1.0 2.5

05 54 2.1 2.0 4.0 7.5 53 8.4 6.0 • 5.0 • 7.8 33 4.0 2.3 2.0 3.8 22 0.0 2.1 1.0 2.5

04 54 2.9 4.0 * 5.0 o 8.3 55 4.2 6.4 4.5 7.8 33 3.7 2.1 2.5 4.0 20 2.0 2.0 0.8 2.5

05 52 5.1 2.0 « 5.5 o 9.0 55 8.0 4.3 6.0 10.0 31 5.7 0.0 1.3 3.0 22 0.0 4.0 0.5 2.0

OS 54 6.0 4.0 5.0 8.0 51 6.9 4.9 a 9.0 •12.3 33 2.0 2.0 1.5 3.0 22 0.0 3.5 1.0 2.5

07 52 8.0 2.0 * 4.8 « 7.5 49 5.1 2.0 * 5.5 • 8,0 35 2.5 2.5 2.3 4.5 22 0.0 2.0 1.5 3.0

OS 50 1.5 4.0 * 5.0 « 8.3 • 51 • 4.0 • 8.0 49 0.0 4.0 •10.5 •13.8 22 2.0 0.0 2.0 3.5

09 39 10.9 3.1 a 6.0 « 8.5 • 49 ° 3.8 • 6.0 46 2.7 6.9 • 8.5 •10.5 24 11.3 3.3 • 2.3 • 3.8

10 • 44 • 42 « 3.5 • 5.0 • 45 •11.0 •15.0 • 24 • 2.0 • 3.5

1

1 • 36 35 25.7 6.1 * 3.3 • 4.

a

45 4.1 6.0 » 7.8 • 11.0 24 10.6 4.0 • 2.5 • 4.3

2 44 10.3 6.6 o 4.5 4 7.0 35 34.9 4.9 4.0 6.5 • 43 • 6.5 •10.0 22 2.7 0.0 2.0 3.5

11 • 44 39 33.7 6.3 5.0 •11.0 43 6.3 2.1 • 6.8 • 9.0 22 2.0 2.7 • 2.0 • 3.8

14 • 38 « 3.5 * 6.0 46 31.3 8.9 • 4.5 • 8.8 • 41 • 7.0 •10.0 22 1.9 2.2 1.3 3.0

15 • 44 o 4.3 « 6.5 45 28.6 4.0 O 2.0 • 4,5 41 8.6 4.0 • 6.0 • 8.3 22 0.0 2.0 1.0 2.8

IS 50 8.3 8.3 a 4.0 • 6.5 • 58 » 12.8 •17.0 39 3.7 4.1 • 5.3 • 7.5 22 0.0 3.5 1.0 3.0

i r 50 9.7 5.7 * 4.0 « 7.0 57 11.8 11.8 7.5 11.0 37 4.0 4.0 2.5 4.5 22 0.0 2.0 1.0 3.0

18 54 4.1 3.7 o 4.5 « 7.0 54 5.1 8.8 ^ 5.3 • 8.5 34 5.2 3.0 3.0 5.0 22 0.0 2.0 1.0 2.5

19 • 54 • 6.0 o 10. 53 9.0 11.0 8.0 11.0 33 5.5 2.0 2.5 4.5 22 0.0 3.3 1.0 2.5

20 • 54 • 5.0 ft 8.0 51 13.1 8.6 4 4.5 • 7.5 32 3.0 1.0 2.0 4.0 21 1.0 2*3 1.0 2.5

21 54 4.1 4.0 * 4.0 « 7.5 51 15.7 7.1 6.0 10.0 33 4.6 2.0 2.0 4.3 21 1.0 2.3 1.5 3.0

?? 54 4.0 2.0 o 4.8 • 9.0 55 11.7 8.8 5.0 8.5 33 5.5 2.0 1.5 3.5 22 0.0 2.0 1.0 2.5

23 54 4.0 4.0 4.3 7.5 51 8.0 8.4 5.0 8.0 33 6.0 2.0 2.5 4.5 22 0.0 2.0 1.5 3.0

» Fewer thon 1 5 days data on power measurements and no computations made for Du andD/.

ft Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db obove ktb. D u

= ratio of upper decile to median in db. D^ = ratio of median to lower decile in db.

V(j m

= medion deviation of average voltage in db below mean power.

L(j m = median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION ENKOPING. SWEDEN LAT. 59.5 N LONG. 17,3 E

H

ft

k

T

i013 FREQUEh

.051 CY (Mc)

.160 .495

°u V Vdm L dm 'bm Du D/ Vdm L dm ^am Du <V Vdm L dm am Du | 0, Vdm L dm

OO

02

03

1*8 148

148

148

7.6

7.9

6.0

6.1

2.0

2.0 2.2 2.2

11.5

12.3 12.5

13.0

17.5

18.5

19.0 19.5

115

115

115

115

4.1

5.0

4.1 4.0

2.0

2.0

2.0

2.0

10.0 9.5

10.0 10.5

15.5

14.5

15.5

16.5

100 104

100 •102

6.0

2.3

8.3

7.5

4.4

4.3

•10.0

» 3.5

• 5,5

•13.5

• 6.5

» 9.0

•101

• 99 •101

95 4.8 4.8

• 1.3

• 3.5

• 3.0

• 2.0

• 1,0

• 4.0

• 3.0

• 1.5

0405

06

07

148

148

148

147

5.9

5.9 4.4

7.5

4.0

4.0 4.0

3.0

14.0 12.5

12.5

13.0

21.0

20.0

19.3 20.0

115

114

113

110

4.3 4.9

4.0

7.0

4.0

5.1 4.5

3.2

10.8

10.3

12.3

11.0

16.5

16.5

18.5

17.3

100 •100 "108

•108

5.7 7.3 « 4.0

• 5.3

• 3.5

• 6,8

» 8.0

• 9.3

* 7.3 •13.0

• 88

• 85

• 86

• 79

• 2.5

• 1.5

• 2.8

• 2.0

• 3.0

• 3.0

• 3.0

• 2.3

0809

10

146 144

142

142

6.6

6.7

4.6

4.1

4.0

6.0 4.3

3.7

13.0 14.5

14.5 13.5

19.0 20.5

21.0 20.5

103

10195

95

8.7

5.6

10.0 9.9

2.7

6.1 4.0 2.2

11.0 11.5

11.3

10.0

15.5

15.5

15.0 14.5

* 88

« 92

* 96

* 92

• 4.0

• 6.0

• 5.0

• 8.0 •12,0

• 9,0

75

• 73

• 75

• 67

11.6 12.2 • 4,5

• 2.0

• 6.5

• 2,8

• 6.5

• 2.3

• 8.0

• 2.8

1213

14

1 5

142

144

144

144

6.0 3.5

2.9

2.0

2.1 4.0

4.0 3.7

12.0 9.8

8.5

9.0

18.5

15.5

14.0

14.0

• 9593

95

101

8.0

8.1 6.0

4.0

4.1 8.5

10.8 9.5

• 6.8

10.8

14.3

13.3

* 9.5

15.0

* 92

• 8892

90 6.1 7,9

12.0 5\8

* 5.5

« 4,5

• 5.0

• 8.8

• 7.3

• 9.0

• 71

• 74

85

79 3.912.6 9.3

18.6

• 1.0

• 2.0

• 2.5

• 2.0

• 2.8

• 4.5

617

<e

9

142 144

146

148

5.5

5.7

4.0

2.0

1.5 2.0

1.5 2.0

10.0 9.0

9.0 8.5

15.5

14.0

14.0 13.8

103 107

111 113

6.9

6.1 5.7

5.6

8.0

5.9

4.1 4.0

12.0 10.5

8.0

8.5

17.5

16.0 12.8 13.5

9295

100 102

5.7

3.6

5.3

3.1

4.3 5.2

4.0

8.0

5.0

» 4.0

4.0

8.0

• 8,0

8.0

69

• 9187

« 95

24.1

10.6

6.0

16.6

• 4.5

• 1.5

• 3.0

• 2.5

• 5.5

• 3.5

• 4.3

• 4.0

2

212223

148

148

149 148

4.0 3.7

4.7

6.0

2.0

2.0 2.6

1.5

8.5

v 9.0

10.0

10.0

14.0 14.5

16.0

16.0

113 115

115

116

4.1

2.1 6.0 4.6

3.6

4.0

4.0

3.1

8.8 9.0 9.5

9.5

14.0

14.0 14.5 14.8

98

102

98

102

8.7

6.0 6.3

4.2

6.0 2.0 5.9

4.2

« 6.0

• 3.5

* 6.0

•10.3

• 7.5

•10.0

• 99

» 99

» 99

99 6.2 7.7

• 3.0

• 1,8

• 3,0

• 4.0

• 1.8

• 3.0

H

R. FREQUENCY (Mc)

L

S.

T.

2.5 5 10 20 am °u °y vdm Ldm am Du °4 vdm L dm am °u DJT Vdm L dm 'am D

g 0/ Vdm >-dm OO • 57 # 5.8 • 9.3 52 2.1 4.0 4.0 6.5 33 4.0 2.0 3.3 4.8 20 2.0 2.0 2.0 3.0

01 57 18.3 4.0 o 6.5 •11.0 54 10.0 6.0 5.0 7.5 33 4.1 2.0 3.0 4.5 20 2.0 2.0 1.5 3.0

2 55 7.2 2.0 ft 5.8 » 8.8 52 11.4 4.0 5.0 8.0 33 4.0 2.0 2.5 4.5 20 1.7 2.0 1.5 3.0

3 55 7.5 3.5 54 7.4 8.0 • 6.0 • 9.0 33 4.3 2.0 3.0 4.5 20 2.0 2.0 1.3 2.8

04 53 19.7 2.0 *» 5.5 • 8.0 50 7.5 6.0 • 5.0 • 8.0 31 5,9 0.0 1.5 3.0 20 2.0 2.0 1.5 3.0

05 53 6.1 2.1 » 4.8 • 7.3 so 12.0 6.0 •10.3 •13.8 31 2.5 0.0 1.5 3.0 20 2.0 2.0 1.5 2.5

06 53 6.0 2.0 49 12.6 5.0 • 5.0 • 7.5 31 2.3 0.0 1.0 2.5 20 2.0 2.0 • 0,8 • 2.3

07 • 55 » 4.5 » 8,0 48 7.8 4,9 • 4.0 • 7.0 35 2.5 2.5 3.8 4.5 20 2.1 2.0 0.5 2.0

08 • 51 ft 4.3 • 7.5 50 5.5 4.0 • 3.5 • 6.0 47 6.0 10.0 • 5.0 • 7.5 20 2.7 2.0 1.5 3.0

09 43 4.3 5.7 o 4.0 • 6.3 44 3.9 6.1 » 4.8 • 7.3 • 47 •13.5 • 9.5 » 20 • 2.5 • 4.0

10 • 45 • 37 • 4.5 • 7.0 • 47 •10. •13,0 » 24 • 4,0 • 6.0

1 • 35 o 4.5 • 7.0 • 32 • 5.0 • 7.5 44 5.3 8.7 • 9.5 •12.5 • 23 • 3.0 • 4.0

12 • 39 o 3.0 » 6.0 32 4.8 4.0 • 5.0 • 7.0 • 45 •10.0 • 10.8. 22 2.1 3.9 • 2,0 • 3.5

13 • 37 31 5.4 2.9 • 3.5 • 5.0 * 45 20 5.3 2.0 • 1.8 • 3.3

14 39 4.6 6.0 o 3.5 • 5.0 • 40 • 6,5 • 9.0 • 45 • 6.0 • 10.0 20 4.0 2.0 • 1.5 • 3.5

15 • 45 « 4.3 • 6.3 44 2.9 4.0 3.0 4.5 42 3.1 3.1 » 3.3 • 5.0 20 2.0 2.0 1.5 3.0

16 49 10.8 2.3 61 7.6 5.0 •10.3 •14.3 41 5.7 5.5 • 3.0 • 5.0 20 2.0 2.0 2.0 3.0

7 • 51 » 58 • 7.0 •10.5 38 6.3 3.0 4.3 5.5 20 2.0 2.0 1.0 2.5

8 • 55 o 7.5 •11.0 54 10,2 6.0 • 5.5 • 8.0 35 5.7 4.0 3.0 3.8 20 2.0 2.0 1.5 2.5

19 • 52 tf 2.5 • 5.5 54 9.4 5.0 • 4.5 • 7.0 31 4.0 0.0 • 1.8 • 3.5 19 2.5 1.5 1.3 2.5

20 • 55 -> 3.5 • 6.0 56 4.7 6.0 • 7.0 » 9.0 33 2.0 4.0 2.0 3.5 20 2.0 2.0 1.0 2.5

21 • 53 58 6.9 4.9 4.0 8.0 32 3.5 3.0 • 2.0 • 3.5 20 2.0 2.0 1.5 3.0

2 2 57 18.6 4.0 o 5.5 • 8.5 56 8.5 4.5 • 6,0 » 9.3 33 4.0 2.1 3.5 3.3 20 2.0 2.0 1.5 3.0

2 3 55 6.2 3.6 3 4.3 • 8.0 52 6.7 4.7 • 4.5 • 7.5 33 2.3 2.0 1.5 3,0 20 1.7 2.0 1.5 3.0

» Fewer than 15 days data on power measurements and no computations made for D,jandD/. a Fewer than 7 days data on voltage and logarithmic measurements.

F Qm = median value of effective antenna noise in db above Mb.

D u

= ratio of upper decile to median in db. D/ = ratio of medion to lower decile in db. Vj m = median deviation of overage voltage in db below mean power.

L(j m

= median deviotion of overage logarithm in db below mean power.
STATION ENKOPING. SWEDENMONTH -HOUR VALUES OF RADIO NOISE

LAT. 59.5 N LONG. 17.3 E FEBRUARY 1965

H

R. FREQUENCY (Mc)

k

T.

;013 .051 .160 .495 nm Du D/ vdm L dm Fom D„ °/ Vdm L dm *am °u 0/ Vdm L dm *dm D,i Dy vdm L dm

00 149 2.0 2.0 9.(1 14.0 119 2.1 6.0 8.0 12.3 •102 • 6.5 •10.0 99 6.0 4.1 • 3.5 • 3.5

01 1*9 2.1 2.0 9.5 15.0 117 6.0 4,3 8.5 13.0 109 6.1 10.1 • 5.0 • 9.0 99 6.6 8.2 • 0.5 • 1.0

02 149 2.1 3.6 10.0 16.0 117 6.0 4.2 11.0 15.5 107 3.6 6.1 100 5.2 23.0 • 3.5 • 3.5

03 1*9 2.0 4.0 10.5 16.5 117 5.9 6.0 8.8 13.3 •107 • 6.0 • 8.5 95 6.2 21.3 • 3.3 • 3.0

4 149 2.1 4.0 11.5 17.3 117 4.3 6.3 10.0 14.5 105 9.5 11.5 • 4.5 • 8.8 95 8.3 11.7 • 7,0 • 9.0

05 1*9 3.7 4.0 11.5 18.0 115 7.7 6,0 10.5 16.3 107 6.0 8.0 • 3.8 • 7.0 91 4.0 13.5 • 1,0 • 1.0

06 1*9 2.0 4.0 12.0 19.0 113 4.0 4.0 11.0 16.0 113 6.0 10.8 » 4.8 •10.3 75 10.0 11.4 • 1.5 • l.S

07 1*7 4.0 4,0 13.0 19.5 109 6.0 4.4 12.3 18.3 » 99 • 4.3 • 9.5 73 4.3 14.3 • 2.5 • 3.5

OS 1*3 4.1 3.6 12.0 18.5 105 4.3 8.3 12.3 17.0 96 8.9 17.4 • 4.5 • 9.0 65 4.0 12.0 • 2.5 • 4.0

09 1*1 3.1 3.1 11.5 17.5 99 11.6 5.3 •11.5 •16.3 • 91 • 60

10 1*1 5.7 4.2 12.0 18.0 » 94 • 9.3 •12.3 • 91 • 7.5 • 12.8 60 7.3 3.0 • 1.5 • 3.0

1

1 1*0 5.0 3.0 12.5 18.5 95 7.9 5.7 • 7.5 •10.0 • 91 • 6.3 •10.5 61 5.2 8.0 • 1.8 • 2.3

12 1*1 *.0 2.0 10.0 16.5 95 10.6 6.6 • 6.0 • 8.8 97 4.0 22.6 • 2.0 • 5.5 58 8.3 5.0 • 2.5 • 4.0

13 1*3 4.0 4.0 8.5 14.0 97 6.6 6.3 7.5 11.0 « 87 • 5.0 •10.0 63 6.2 8.0 • 1.0 • 1.5

14 1*3 4.2 2.2 8.5 13.5 97 7.4 6.0 • 5.5 • 9.3 91 e.e 14.3 • 6.0 •10.0 63 8.6 7.3 • 1.8 • 2.8

5 1*3 2.3 4.0 6.8 11.3 99 6.0 6.0 « 8.5 •12.3 89 8.3 10.3 • 5.8 • 11.8 79 6.6 6.5 • 1.5 • 1.5

16 1*3 2.1 2.1 7.0 10.5 99 8.0 4.0 10.0 13.0 91 8.0 10.3 • 67 • 2.5 • 4.5

17 143 2.0 4.0 6.5 10.5 103 8.6 4.0 9.3 13.5 93 8.5 6.0 • 6.0 •10.0 • 87 • 2.5 • 5.0

a 1*5 4.0 2.0 6.3 10.5 111 3.4 4,7 6.0 10.3 105 6.0 6.0 • 4.0 • 7.5 87 16.3 18.3 • 4.0 • 5.8

i 9 147 3.7 2.1 5.5 9.5 113 6.0 4.0 5.8, 10.3 104 7.1 9.2 • 3.5 • 8.3 • 97 • 3.5 • 3.5

£0 147 3.7 2.0 6.0 10.0 113 8.0 0.5 6.5 10.3 105 8.0 6.5 • 4.8 • 9.0 101 4.0 7.7 • 1.0 • 1.0

21 149 2.0 2.1 6.5 11.0 115 7.7 6.0 6.5 10.0 105 7.9 4.1 • 4.0 • 7.5 99 5.9 6.2 • 1.0 • 1.5

22 149 2.0 2.0 6.5 10.5 115 8.0 5.7 7.0 11.5 103 8.0 4.6 • 5.3 •10.5 •101 • 2.5 • 2.5

23 149 3.7 2.1 8.0 12.8 117 6.0 6.0 8.0 11.8 105 6.1 5.9 • 5.5 •10.0 101 4.0 7.0 • 3.3 • 3.3

H

R. FREQUENCY (Mc)

L

S.

T.

2.5 5 10 20 am Du °J vdm Ldm om Du <v Vdm L dm am Du °/ Vdm L dm am Du °J Vdm L dm

00 57 13.8 3.9 • 5.0 • 8.5 54 4.0 2.0 • 3.0 • 5.8 32 6.5 0.0 2.5 4.0 20 2.0 4.0 1.5 3.0

01 • 59 • 5.5 • 9.0 56 11.1 4.0 • 5.5 » 9.0 34 6.0 2.0 1.0 2.5 20 2.0 4.0 1.0 2.8

02 57 14.9 2.2 • 4.5 « 8.0 56 9.3 4.0 • 9.5 •13.5 34 4.0 2.0 1.0 3.0 22 0.1 6.0 1.0 2.5

03 55 8.B 4.0 • 4.3 • 6.8 56 5.1 5.1 6.0 9.5 34 6.1 2.0 1.0 3.0 22 2.0 6.0 1.0 2.5

04 57 1 1.4 5.7 • 5.3 • 9.5 54 4.7 4.0 9.0 11.5 32 4.1 0.0 2.3 3.8 22 1.9 6.0 1.0 2.5

OS 55 B.& 6.0 • 5.5 * 9.0 56 11.5 6.0 •11.0 •15.5 32 2.4 0.0 0.8 2.5 22 0.9 6.0 1.0 2.5

06 55 5.5 4.0 • 5.5 •10.5 • 62 •14.0 •19.0 34 5.3 2.0 • 3.0 • 4.8 22 2.0 6.0 1.0 2.5

07 51 4.3 4.3 • 4.3 • 7.5 52 2.0 4.0 4.5 8.0 44 2.3 8.0 •10.0 •13.5 22 2.0 6.0 1,3 2.8

08 43 4.3 4.3 • 5.0 • 7.8 • 45 • 2.5 • 6.5 45- 5.2 5.2 • 5.8 • 8.0 22 2.7 4.0 2.0 4.0

09 • 38 • 6.8 •11.3 • 40 • 4.0 • 8.5 • 48 • 8.0 • 10.5 24 1.9 7.7 2.3 4.0

10 • 35 • 5.0 • 7.3 • 37 • 4,3 • 6.3 • 48 •10.0 •13.0 • 24 • 3.0 • 4.5

1 1 • 37 • 3.5 • 6.5 • 34 • 3.3 • 5.3 46 4.1 5.7 • 9.5 • 13.0 • 24 3.5 6.0

2 • 42 • 4.3 • 6.3 33 4.9 5.2 • 4.8 • 7.0 • 45 • 9.0 •12.0 22 3.7 4.0 2.5 4.0

3 • 43 • 4.0 • 6.0 32 4.3 2.6 • 3.5 • 6.0 48 2.0 4.2 « 8.0 • 12.3 22 2.0 6.0 1.8 3.5

14 37 4.3 4.0 • 5.0 • 7.0 36 3.0 6.2 • 2.0 • 4.5 48 4.0 4.3 • 7.5 •10.0 22 2.0 4.2 1.5 3.5

15 • 43 • *.o • 7.0 40 6,1 6.1 • 2.8 • 4.5 46 3.6 4.3 • 3.0 • 4.5 20 2.3 3.7 1.3 3.3

16 • 45 • 60 •12.8 •17.0 50 3.6 6.1 • 3.8 • 6.3 20 1.9 4.0 1.5 3.0

1 7 47 4.8 6.0 63 1,0 3.6 •12.0 •16.3 46 3.7 6.0 • 5.0 • 7.3 20 2.5 4.0 1.0 2.5

18 • 53 • 4.5 • 7.8 » 64 • 5.8 • 9.0 42 3.5 8.0 4.3 6.8 20 1.1 4.0 1.0 2.5

9 • 55 • 4.0 • 7.0 59 7*2 7.1 • 3.5 • 6.5 36 6.1 4.0 2.5 5.0 20 0.1 4.0 0.8 2.5

20 55 7.7 3.7 • 4.3 • 6.8 61 5.0 7.6 • 7.5 •12.0 34 8.0 2.0 4.5 6.3 20 0.1 4.0 1.5 2.5

21 57 5.0 4.0 • 5.8 • 9.5 59 8.3 6.3 6.0 10.0 36 4.0 4.0 2.5 3.5 20 0.4 4.0 1.5 3.0

22 • 55 • 4.3 * 6.8 58 9.3 6.6 • 7.8 •11.0 34 6.5 2.0 2.0 3.5 20 1.0 4.0 1.5 3.0

23 57 5.7 5.8 • 5.5 • 9.0 54 3.9 4.0 • 4.8 • 7.8 3* 6.0 2.0 1.5 3.0 20 2.0 4.0 1.5 3.0

# Fewer than 15 days data on power measurements and no computations mode for D u andD/. $ Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above ktb. D u

= ratio of upper decile to median in db. Cw = ratio of median to lower decile in db. V dm = median deviation of averoge voltage in db below mean power.

L,j m

= median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION FRONT ROYAL. VA. |_AT. 38. 8 N LONG. 78.2. w OECEMBER 196*

H

R FREQUENCY (Mc)

i

T

.135 .5

'om Du "V Vdm L dm Fom Du °/ Vdm L dm Fom Du °j Vd m L dm Fom Du 0/ Vdm L dm

00 109 8.6 6.1 85 9.0 4.5

01 109 7.1 5.5 85 9.6 5.5

0.' 108 8.1 5.1 84 9.1 6.1

03 109 7.0 5.5 83 9.5 7.6

4 10ft 8.0 4.5 81 9.0 8.1

5 104 8.5 3.0 76 12.7 6.5

6 104 7.5 6.0 72 15.7 6.0

7 98 9.2 5.0 62 8.5 3.0

ca 93 5.0 2.5 56 5.0 2.0

09 92 6.0 2.5 56 4.0 2.0

10 93

92 5.6

9.0

4.0

3.6 56

56 4.6

5.0

3.0

2.0

2 91 8.1 2.0 57 4.5 2.5

13 92 8.6 3.0 57 4.7 2.7

14 92 11.1 3.5 57 4.6 2.0

1 5 92 11. b 3.0 58 4.0 2.0

IE 89 12.7 2.0 61 7,6 4.0

1 92 15.1 3.0 68 12.0 7.0

IS 101 12.2 7.0 73 14.6 4.5

9 103 11.2 5.0 77 12.5 4.0

20 106 9.1 4.0 81 10.6 4.0

21 106 8.b 4.0 84 6.6 5.1

22 107 9.1 4.5 84 8.6 3.5

25 106 11.5 3.5 84 9.5 3.5

HR FREQUENCY (Mc)

L

S.T

2.5 5 10 20 am D

u °J vdm L dm am Du °y vdm L dm Fam °u °y vdm L dm am D

« Oj Vdm L dm

00 59 8.1 6.5 54 9.6 4.0 33 2.5 2.0 22 1.0 1.0

01 59 8.5 7.5 54 9.2 4.5 32 4.1 1.5 22 1.0 1.0

02 59 8.6 8.0 55 8.2 5.0 33 2.6 1.6 22 0.5 1.0

03 58 10.0 6.5 56 6.5 5.0 34 2.0 2.7 22 1.0 1.0

4 59 8.6 6.5 54 8.0 3.5 33 4.7 1.0 23 1.0 1.0

OS 58 8.2 6.0 53 8.5 3.0 33 3.8 1.5 23 1.0 0.0

06 54 11.6 3.5 51 8.5 2.0 34 3.1 2.0 24 0.5 1.0 07 53 5.0 5.5 50 7.0 2.0 35 7.5 3.3 24 1.0 1.0

OS 40 7.5 5.5 43 4.2 2.5 36> 4.8 2.0 25 1.0 1.5

09 36 6.1 ft.O 39 3.5 3.5 34 3.1 2.0 24 2.0 0.5

10 36 4.1 6.5 37 3.0 5.1 33 3.0 2.0 24 2.0 1.0

1 1 34 6.1 6.0 35 4.0 4.0 33 2.5 2.0 24 2.0 1.0

12 33 5.5 4.0 32 4.0 4.5 33 2.7 2.0 24 2.0 1.0

13 3ft 7.0 5.0 33 3.5 4.0 34 2.7 3.0 25 1.5 1.5

14 36 7.0 5.5 34 5.0 4.1 35 3.0 1.8 25 1.0 1.5

IS 36 13.2 S.O 39 3.0 5.5 36 2.9 1.1 25 1.0 1.5

16 42 9.2 5.1 48 5.0 4.0 39 5.9 1.9 25 1.0 1.0

i 7 50 10.0 ft.

52 8.0 2.5 39 4.3 3.0 24 1.0 1.0

18 53 10.0 6.0 53 10.5 3.0 37 3.0 2.0 24 1.0 1.0

9 b4 9.5 5.0 54 8.5 4.0 36 3.0 2.0 24 1.0 1.0

20 58 8.5 6.0 55 7.1 4.5 33 3.0 2.0 22 2.0 1.0

21 59 7.6 7.0 55 6.0 5.0 33 2.0 2.0 22 1.5 1.0

22 59 7.5 8.1 55 7.0 5.0 33 2.0 2.0 22 1.0 1.0

23 59 8.1 8.5 54 10.0 3.0 33 2.0 2.0 22 1.0 1.0

** Fewer than 15 days data on power measurements and no computations mode for D u andDjg. W Fewer than 7 days dota on voltage ond logarithmic measurements.

F

QIT1 = median value of effective antenna noise in db obove Mb. D u

= ratio of upper deciieto medion in db. D/ = ratio of median to lower decile in db. V^m = median deviation of average voltage in db below mean power.

L(j m = median deviation cf average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION FRONT ROYAL. VA. |_AT. 38.8 N LONG. 78.2 W JANUARY 1965

H

R FREQUENCY (Mc)

k

T

.135 .5

Fam Du <v Vdm L dm Fom °u 0/ vdm L dm Fam % 0/ Vdm L dm Fom °„ Dy Vdm L dm

00 106 4.6 7.6 84 6.0 6.1

01 106 6.9 7.0 84 7.6 6.0

02 106 6.2 6.6 84 8.1 6.1

03 105 7.9 5.0 82 12.0 6.0 -

04 105 8.9 6.6 78 13.5 5.6

05 104 7.9 6.3 76 14.0 8.1

06 103 7.5 6.5 73 17.5 9.5

07 98 5.3 4.6 63 7.1 5.5

08 90 2.7 2.0 57 4.0 5.0

09 89 4.0 3.7 56 5.5 3.7

10

1 88

88 8.7 5.7

2.7

3.0

56

56 4.7

3.0

4.0

3.7

12 87 6.3 2.0 55 3.5 2.5

13 87 7.1 2.5 55 3.5 2.5

14 89 9.6 3.0 56 3.1 3.5

1 5 88 6.8 2.5 56 3.1 3.1

16 90 7.0 2.0 59 2.0 3.7

17 93 9.7 5.0 62 9.5 2.0

6 97 9.8 6.1 72 10.5 5.0

19 102 8.6 8.0 77 10.5 5.5

20 104 6.6 8.6 82 8.5 6.0

21 104 6.5 8.1 83 8.0 5.0

22 104 8.8 7.B 84 6.0 5.0

23 106 6.9 5.0 84 6.5 5.0

H

R. FREQUENCY (Mc) L

S

T

2.5 5 10 20 am D

u °7 Vdm L dm am Du °l vdm L dm am Du °J vdm L dm am D

y °J Vdm L dm

00 68 7.0 7.6 53 5.0 4.5 33 2.5 2.5 22 1.5 1.0

01 68 7.0 7.0 54 4.0 5.0 32 4.1 1.0 22 1.5 1.0

02 67 6.6 6.3 54 5.0 4.5 33 3.1 2.0 22 1.5 1.0

03 66 7.0 5.9 53 6.5 4.0 33 2.0 2.0 22 1.5 1.0

4 66 7.5 5.1 53 6.5 3.0 33 4.6 l.n 23 1.5 0.0

5 67 5.6 7.0 53 6.0 3.5 33 4.6 2.0 23 1.5 0.0

6 61 6.0 5.0 52 7.0 3.0 34 4.5 2.5 24 1.5 1.0

07 56 5.3 4.0 51 5.5 3.0 36 3.0 3.0 24 1.5 1.0

8 42 6.2 3.7 41 5.3 1.0 38- 6.0 1.0 24 1.6 1.0

09 39 5.9 4.6 38 4.6 2.6 37 4.9 2.0 24 3.7 1.0

O 35 6.1 4.1 35 3.6 2.6 36 4.1 1.5 24 4.7 1.0

1 1 33 6.3 3.0 33 3.1 3.1 35 6.0 1.0 24 4.0 1.0

12 32 8.1 3.0 32 4.5 2.0 35 4.6 l.n 24 2.0 1.0

13 33 5.5 3.0 34 3.5 4.0 36 3.6 2.0 24 2.0 1.0

14 36 8.3 6.0 36 3.0 4.0 37 4.7 2.7 24 1.0 1.0

15 38 6.5 5.0 37 4.0 1.5 39 7.2 3.n 24 1.0 1.0

16 46 6.1 3.5 46 5.1 3.0 40 4.5 3.5 24 1.0 1.0

17 57 5.5 6.5 52 5.5 4.0 40 6.3 3.6 24 1.0 1.5

18 63 6.6 7.0 54 5.5 5.0 38 4.0 3.5 23 1.0 1.0

9 66 5.0 7.6 54 7.6 4.5 36 5.0 2.5 23 1.0 1.0

20 68 4.0 7.6 54 6.5 4.5 33 3.0 2.0 22 1.0 1.0

2i 69 4.0 8.6 54 4.5 4.5 33 1.5 2.0 22 1.0 1.0

22 68 5.6 7.6 53 5.5 3.5 33 2.0 2.0 22 1.0 1.0

23 68 6.0 7.6 53 5.0 4.0 32 3.0 1.0 22 1.0 1.0

$ Fewer thon 15 days data on power measurements and no computations made for Du andD/. « Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above Mb. O u

= ratio of upper decile to median in db. D/ = ratio of median to lower decile in db.

v dm = median deviation of average voltage in db below mean power.

L(j m

= median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION front ROyAL. VA. LAT. 33.8 N LONG. 73.2 w FEBRUARY 1965

H

R FREQUENCY (Mc)

k

T.

.135 .5

Fom Du °/ Vdm L dm Fom Ou °4 vs> L dm Fam °u Dy Vdm L dm FQm Du 0/ vdm L dm

00 105 9.8 5.0 83 8.5 5.3

104 10.5 5.5 84 8.1 6.8

2 105 8.1 8.0 82 8.5 6.5

i! 104 8.6 7.1 79 10.0 4.0

4 102 6.1 8.3 79 8.6 6.8

Ob 100 6.5 4.5 77 9.0 8.8

99 9.1 5.fl 68 14.9 5.0

Of 92 8.4 2.3 62 5.1 2.0

78 90 4.9 2.5 59 2.0 3.8

7 9 90 3.8 2.9 58 4.0 3.0

10

I 1 90

91 2.6

3.9 2.5

3.6

58

59 4.03.8 2.84.0

12 91 5.2 3.0 59 3.9 2.1

i 90 5.5 1.0 59 4.3 3.6

4 90 8.1 2.8 59 3.8 2.9

S 90 9.2 3.0 59 3.8 3.6

6 90 7.1 1.5 62 3.0 3.8

1

;

91 9.7 1.8 63 5.9 2.8

is 95 9.9 4.1 72 9.2 4.0

IS 99 11.7 4.R 78 10.9 3.0

20 101 12.7 3.8 81 10.

1

4.5

21 103 10.1 5.0 83 11.3 5.3 a 105 7.8 6.1 84 10.8 4.0

I

* 105 8.6 6.3 84 11.4 5.0

H

R. FREQUENCY (Mc)

I_S

T 2.5 5 10 20

am Du °J Vdm L dm am D„ °/ vdm L dm Fam D„ aJ Vdm L dm am D

» 0/ Vdn, L dm

DO 71 10.9 10.0 57 6.1 5.0 35 1.0 1.0 24 1.0 1.1

01 69 12.6 9.4 57 6.0 5.0 35 2.1 1.0 24 1.0 1.1 02 70 12.3 9.1 56 3.8 3.1 35 3.8 1.0 ?4 1.0 1.0

i 72 10.1 12.0 55 5.8 3.9 35 3.0 1.0 24 1.0 1.0

4 70 10.4 11.6 55 5.8 2.9 33 2.9 0.9 25

O 5 71 6.0 12.0 54 5.1 4.3 34 2.0 1.2 25 0.8 1.8

06 61 8.3 4.9 53 7.6 3.9 33 2.0 1.0 25 1.0 1.0

07 53 5.5 3.8 52 5.0 5.0 35 4.0 3.0 25 0.8 1.0

OB 43 5.4 5.9 43 2.1 3.8 40 3.3 3.0 25 1.0 2.0

9 41 4.1 5.3 40 3.0 3.8 39 2.1 2.0 25 0.1 1.9

10 37 5.1 5.9 36 3.3 2.5 38 2.1 2.0 24 1.9 0.9

1 1 36 4.1 4.9 35 2.9 2.0 37 3.0 1.0 25 1.0 1.0

12 33 3.0 3.1 32 3.6 2.8 37 3.0 1.0 27 2.6 1.0

13 33 3.1 2.9 33 2.8 2.8 37 4.5 1.5 27 1.5 1.0

4 34 4.1 3.8 34 4.0 2.0 38 4.6 1.6 27 1.5 1.0

15 37 3.9 5.9 37 3.8 3.8 40 5.5 1.6 27 1.5 1.0

16 44 4.1 4.2 45 4.9 3.0 42 *.3 2.1 24 1.9 0.5

7 51 4.8 5.0 53 5.8 3.8 44 3.1 3.1 24 2.3 1.0

IB 64 6.0 5.9 57 6.1 3.8 43 6.0 3.3 24 0.9 2.0

IS 69 5.1 7.0 57 7.9 4.1 41 8.1 4.0 23 1.9 1.0

20 70 8.0 8.0 57 9.1 5.0 36 2.0 2.0 23 1.0 1.0

z 70 7.3 9.0 58 10.5 5.0 35 2.0 1.0 23 1.8 1.0

22 69 10.0 8.1 57 9.7 4.1 35 2.8 1.0 24 1.0 1.8

. 5 72 8.1 10.3 57 7.3 5.0 36 1.8 2.0

1 24 0.8 l.B

;» Fewer than 15 days dota on power measurements and no computations made for Du andC W Fewer than 7 days data on voltage and logarithmic measurements.

F

Q _ = median value of effective antenna noise in db above ktb.

U

= ratio of upper decile to median in db. D^ = ratio of median to lower decile in db.

V(j m

= median deviation of averoge voltoge in db below mean power.

L(j m

= median deviation of average logarithm in db below mean power.
MONTH-HOUR VALUES OF RADIO NOISE

STATION KEKAHA. HAWAII |_AT. 22.0 N LONG. 150.7 w DECEMBER 1964

H

R FREQUENCY (Mc)

k

T

.013 .051 .160 .495

am °u °/ Vdm L dm *am K D/ Vdm L dm Fam % <V Vdm L dm Fam °„ °/ Vdm L dm

00 153 9.5 4.0 10.0 16.5 190 13.5 4.0 11.3 16.8 111 15.5 6.0 9.5 16.0 90 17.5 6.0 10.5 19.5

01 153 9.5 4.0 11.5 17.8 132 11.5 5.5 10.3 16.0 111 15.5 5.5 10. 17.5 92 14.0 9.5 9.5 18.0

02 153 10.0 4.0 11.5 17.5 132 11.5 4.0 11.0 19.0 111 13.5 5.5 10.5 17.5 92 14.0 8.0 10.0 19.5

3 153 10.0 3.5 10.5 16.0 132 10.0 3.5 12.0 19.5 111 12.0 5.5 10.8 18.5 90 16.0 7.5 9.5 17.0

04 153 10.0 3.5 10.5 16.3 134 10.0 4.0 11.8 18,8 111 14.0 6.0 10.5 18.0 90 15.5 8.0 11.0 19.5

5 155 7.5 4.0 11.0 17.0 132 10.0 2.0 11.8 19.5 109 15.6 4.1 11.5 19.8 88 16.1 9.6 11.8 19.3

06 154 7.1 3.0 11.5 18.0 133 9.1 5.0 11.5 19.0 107 15.6 6.1 9.3 17.5 85 17.1 9.1 10.5 19.5

07 15* 5.1 3.0 11.5 18.0 128 9.6 6.0 12.0 19.5 97 25.2 10.1 12.5 21.5 70 31.7 12.0 •11.0 •17.8

OB 151 9.6 2.1 11.5 18.0 123 17.0 7.0 12.0 17.5 90 32.7 16.6 13.5 22.0 64 41.3 10.0 • 6.5 •11.3

09 150 9.1 3.0 11.8 18.0 116 24.0 14.1 14,0 20.0 89 30.0 19.5 13.5 24.0 62 37.9 10.1 • 9,3 •15.5

10 151 7.6 4.1 12.0 19.0 118 17.9 15.7 16.0 24.0 93 ?7.7 18.2 15.5 24.5 64 40.6 12.1 •12.3 •22.3

151 10.3 4.0 12.8 19.0 118 17.0 14.5 15.8 23.0 95 27.4 25.0 16.0 27.0 62 38.6 10.0 • 9.0 • 16.3

12 151 10.0 4.0 12.5 20.0 118 17.9 11.7 12.8 20.3 91 28.0 21.9 •14.0 •24.5 62 41.0 9.7 9.5 19.5

1 3 151 7.9 3.9 13.0 20.5 118 14.6 11.9 14.3 21.3 91 25.9 18.3 14.0 25.5 64 37.6 12.1 • 9.5 •18.8

14 152 7.1 5.0 13.5 21.0 118 15.5 10.0 14.5 22.3 91 27.0 14.2 12.5 23.0 65 31.3 12.6 10.5 18.5

5 151 7.6 4.0 1ft. 21.5 115 17.2 9.1 13.8 21.0 92 26.3 24.2 •13.8 •25.5 65 39.4 12.6 7.8 14.3

16 151 6.1 5.6 13.5 20.5 113 20.8 12.2 15.5 25.0 88 31.8 16.3 14.3 23.8 62 41.1 8.1 12.3 19.8

17 151 6.3 5.9 13.0 20.0 118 17.3 14.0 15.0 22.5 94 ?5.6 14.3 13.0 24.0 75 26.3 13.0 11.0 19.5

IB ISO 9.0 5.6 12.0 18.5 120 17.3 8.0 13.0 21.0 100 19.0 14.3 11.5 20.0 83 19.0 12.3 11.5 21.5

19 151 8.0 6.0 11.0 16.5 121 16.3 6.3 12.0 19.5 102 18.3 13.0 •12.5 • 24.3 86 19.3 12.0 10.3 21.8

20 153 6.6 6.0 10.0 15.0 122 16.0 6.0 13.5 21.3 102 19.0 9.0 13.0 23.5 88 18.6 11.3 12.5 23.0

21 153 7.3 6.0 9.5 15.5 126 14.0 8.0 13.3 20.0 105 17.3 8.0 13.0 20.5 90 17.3 12.0 13.0 21.0

22 153 8.0 5.3 10.0 15.5 128 12.0 6.0 11.5 17.0 107 18.0 6.0 11.3 19.5 92 16.0 10.0 10.0 18.5

23 153 7.3 5.3, 10.0 16.3 129 12.3 5.0 10.0 17.0 109 17.3 8.0 11.0 18.0 91 16.3 8.3 11.5 20.0

riR. FREQUENCY (Mc)

L.

S.T

2.5 5 10 20 am °u °J vdm L dm am °u °4 Vdm L dm Fom °u Dy V

d m L dm om Du °J Vfkn L dm

00 63 17.0 4.0 5.5 10.0 54 10.4 4.0 4.5 7.5 34 11.0 5.5 3.3 5.5 21 7.0 0.0 1.5 3.0

01 63 14.0 6.0 5.8 9.3 56 6.0 6.0 4.5 7.8 34 11.5 4.0 3.0 5.5 21 8.0 1.5 1.3 2.8

02 63 14.0 3.5 5.5 8.5 58 7.5 8.0 3.5 7.0 34 10.0 4.0 3.0 5.3 21 7.0 0.0 1.0 2.5

03 63 12.0 4.0 5.5 8.5 58 7.5 7.5 4.5 7.0 36 10.0 8.0 3.0 5.5 21 8.0 0.0 1.8 3.3

04 65 14.4 8.0 6.5 9.8 58 7.5 7.5 3.0 6.0 32 15.5 4.0 2.5 4.5 21 9.5 0.0 2.0 3.5

5 65 11.5 8.0 7.0 10.5 54 8.0 5.5 4.3 7.5 30 11.5 2.0 2.3 4.0 23 3.5 2.0 2.0 3.5

06 63 13.5 8.0 6.5 10.0 52 9.0 4.0 3.5 6.3 30 9.0 0.0 2.0 3.5 23 3.5 2.0 2.0 3.5

07 65 10.0 10.0 7.0 11.3 56 5.5 6.0 3.5 7.3 36 7.5 4.0 4.0 7.0 23 2.0 2.0 1.5 3.5

oe 53 17.5 7.5 • 6.5 • 10.5 48 14.0 4.0 3.8 7.5 38 5.5 4.0 6.5 9.5 23 2.0 0.0 2.8 4.5

OS '47 23.5 12.0 5.5 9.5 42 16.4 10.0 5.5 9.5 34 10.0 4.0 6.0 8.0 23 3.6 1.6 2.8 4.8

1 45 22.1 13.7 • 2.8 * 4.8 38 16.2 15.9 6.0 9.0 32 13.3 4.1 • 5.8 1» 8.5 23 3.9 2.0 2.5 4,0

1 43 28.6 14.0 • 3.0 • 5.0 35 18.0 14.0 5.0 7.8 30 14.3 4.0 • 7.8 • 12.8 23 4.0 2.0 2.0 4.0

2 ft5 27.2 14.1 • 2.5 • 5.0 32 26.8 14.0 3.0 5.0 32 10.1 6.1 7.5 11.5 23 4.3 2.0 2.5 4.5

3 ft3 28.7 12.1 • 3.3 • 5.3 32 20.7 14.0 • 4.0 • 7.0 32 13.9 7.7 7.5 11.5 23 4.1 2.0 2.5 5.0

14 46 25.6 16.6 • 1.8 • 3.8 34 21.9 14.0 • 6.0 • 9.0 34 11.7 7.6 • 7.0 •10.0 23 5.2 2.0 2.8 4.5

15 45 17.0 15.2 • 3.3 • 5.3 37 14.9 16.6 • 6.5 • 9.0 34 13.6 3.6 5.3 8.0 23 4.1 2.0 2.0 4.0

'6 49 25.7 15.6 • 5.5 • 10.5 38 21.4 6.1 6.0 10.5 36 9.7 3.7 • 6.0 • 9.3 23 4.1 2.0 1.5 3.3

1 7 54 16.7 14.3 •11.0 • 18.0 47 15.0 8.3 7.5 12.3 38 7.3 4.0 5.5 8.3 23 5.3 1.3 2.0 3.5

IS 61 15.3 11.3 • 6.5 •10.5 50 13.3 6.0 6.5 11.0 36 9.8 4.0 4.0 6.0 23 4.0 2.0 1.5 3.5

9 63 16.0 9.3 8.0 16.0 50 12.6 6.0 6.5 11.3 33 9.0 1.0 4.0 6.0 23 4.0 2.0 1.8 3.5

20 61 18.0 4.0 • 7.3 •13.0 50 11.3 4.0 5.8 9.8 34 8.0 2.0 3.3 5.5 21 5.3 0.0 1.0 3.0

2 63 15.3 8.0 7.5 11.5 53 9.0 3.0 5.5 • 7.8 36 6.0 5.3 3.5 6.5 21 4.0 0.0 1.5 3.0

22 63 15.3 6.0 6.3 10.8 55 7.6 6.3 • 5.5 •10.0 38 6.6 5.3 3.5 6.5 21 3.3 0.0 1.5 3.0

2 3 64 13.6 7.0 6.0 10.0 52 8.0 3.3 » 4.5 • 8.0 36 7.3 4.0 3.3 6.0 21 6.6 0.0 1.5 3.0

# Fewer than 15 days data on power measurements and no computations made for DyandD/. & Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above ktb. D = ratio of upper decile to median in db. D/ = ratio of median to lower decile in db. 7^= median deviation of overage voltage in db below mean power. medion deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION KEKAHA, HAWAII LAT. 22.0 N LONG. 159.7 w JANUARY 1965

H

R FREQUENCY (Mc)

k

T

.013 .051 .160 .495

°u <v

Vd m -dm *bm Du Vj Vdm L dm Uim °u °/ Vdm L dm ^om Du Oj Vdm L dm

00 154 4.0 4.0 9.5 16.0 130 6.0 5.1 11.0 17.5 108 11.1 6.0 10.0 14.5 86 13.1 6.0 9.0 15.5

154 4.0 4.0 11.0 17.3 130 6.2 2.0 11.3 17.0 108 10.2 4.0 11.0 16.5 88 11.1 7.1 9.0 15.5

2 152 6.0 2.0 11.0 16.5 130 6.2 2.0 11.0 18.0 108 8.2 4.0 10.0 16.0 86 13.1 5.1 9.0 15.5

3 154 5.1 4.0 10.5 16.8 132 5.1 4.0 11.5 18.0 110 9.2 4.0 9.5 16.5 88 15.1 8.0 9.8 17.3

04 154 4.0 4.0 11.0 17.0 132 6.0 4.0 11.0 17.5 108 13.1 4.0 10.0 17.8 88 14.0 9.1 9.3 18.3

C5 154 4.2 3.1 11.5 17.5 132 5.1 6.0 12.0 20.0 108 13.1 5.1 10.0 17.5 86 15.1 7.1 11.5 21.3

06 154 4.0 2.0 11.0 17.5 130 6.0 4.2 11.3 18.3 104 11.2 4.0 11.0 19.0 82 15.2 6.0 11.5 20.5

07 156 2.0 4.0 11.5 18.0 126 7.2 3.1 12.5 19.5 94 18.6 6.0 12.0 18.5 68 24.6 9.1 10.5 21.0

08 15(1 5.1 2.0 11.5 17.0 120 1H.2 3.1 12.0 18.5 82 35.2 9.1 •10.5 •17.0 58 33.1 3.1 • 8,0 •14.5

9 lSn 5.1 4.0 12.0 18.0 110 13.3 8.0 13.3 19.3 80 19.3 11.3 10.5 20.5 56 23.2 6.0 6.3 10.0

10 150 4.0 3.3 12.5 19.0 108 14.0 7.3 11.5 16.5 82 18.2 13.1 •14.0 •21.0 58 19.4 4.0 6.8 10.8

1 1 150 4.0 2.0 12.5 18.8 112 11.5 8.0 13.3 18.8 83 20.3 16.3 •13.3. •23.3 56 26.6 4.0 • 7.0 •10.5

2 152 3.3 4.0 13.0 19.0 114 8.6 9.3 14.8 20.0 84 22.4 16.0 •13.8 •20.3 56 33.9 6.0 7.5 8.0

3 I5n 5.3 2.0 13.5 20.0 114 10.6 7.6 12.5 19.0 82 P6.0 16.0 •17.5 •25.5 58 29.7 6.0 • 3.5 • 6.5

14 15n 6.2 2.0 14.5 22.3 114 11.5 8.0 15.8 22.0 82 ?5.9 16.0 •14.0 • 25.0 58 31.6 6.2 • 6,0 • 9.5

5 150 6.1 3.6 15.0 22.0 110 13.5 4.0 15.0 20.5 75 33.3 9.0 15.5 25.5 56 29.9 5.7 9.0 15.5

IG 150 5.5 4.0 14.0 21.5 108 18.4 7.9 14.5 17.5 75 30.4 10.6 12.8 17.3 56 27.2 4.1 • 7,0 • 9.5

7 ISO 3.5 5.5 13.3 20.8 109 16.3 8.3 14.5 19.0 86 22.2 18.0 11.0 19.5 62 25.1 9.1 • 7.0 •10.5

18 148 9.1 2.0 12.5 17.

B

114 16.2 10.0 10.8 15.5 94 19.1 17.1 11.5 20.0 70 22.0 8.0 12.5 19,0

9 150 6.0 4.0 11.5 17.5 120 9.1 10.0 12.0 19.0 94 19.1 9.1 13.3 22.8 78 18.2 10.0 • 6.3 •10.8

20 150 8.0 2.0 11.5 17.5 122 9.1 8.0 12.5 18.5 100 16.2 12.0 13.3 21.8 B4 14.2 11.1 12.8 21.0

21 152 5.1 2.0 11. 16.8 124 9.1 7.1 12.8 19.3 102 13.1 6.0 13.5 21.8 86 9.1 io.o 12.0 19.0

22 152 4.0 3.1 9.8 15.0 126 6.0 4.0 12.5 19.0 104 14.0 6.0 9.5 15.0 86 12.0 8.0 • 8.8 •15.5

2 3 152 5.1 2.0 10.3 16.0 128 6.0 4.0 11.0 17.3 108 9.1 8.0 9.5 16.0 86 13.1 6.0 11.0 17.5

H

R. FREQUENCY (Mc) L

S.

T.

2.5 5 10 20 am °u °J vdm Ldm am °U °4 Vdm L dm am °u °I vdm L dm Fom D

,l 0/ Vdm L dm

00 61 10.0 4.0 7.0 12.0 50 7.1 2.0 4.5 8.0 30 4.0 2.0 2.5 4.5 23 0.0 2.0 2.0 3.5

01 61 12.0 4.0 7.0 11.5 52 7.1 4.0 4.0 6.5 30 3.1 4.0 2.5 4.0 23 Q.O 2.0 1.5 3.0

02 61 13.1 4.0 7.5 13.0 52 8.0 4.0 3.5 7.0 3? 4.0 2.0 2.5 4.3 23 0.0 2.0 1.5 3.0

03 61 12.2 4.0 7.3 12.3 52 10.0 4.0 4.0 7.5 32 6.0 2.0 3.0 4.5 23 0.0 2.0 1.5 3.0

04 61 10.0 4.0 6.5 11.0 50 10.0 2.0 4.5 7.5 30 4.0 3.1 2.3 3.8 23 1.1 2.0 1.5 2.5

05 61 9.1 6.0 7.0 12.3 50 9.1 4.0 4.0 7.3 30 5.1 4.0 2.0 3.5 23 2.0 2.0 2.0 3.5

06 61 8.3 6.0 7.3 11.5 48 10.2 2.0 3.5 6.5 30 4.0 3.1 1.8 3.3 25 0.0 4.0 2.0 3.5

07 59 9.2 5.1 7.8 13.0 46 13.2 4.0 3.5 6.3 3? 5.1 4.0 3.0 5.0 25 0.0 2.0 2.0 4.0

08 49 14.5 6.0 6.3 8.5 42 14.0 6.0 4.0 7.3 34 8.0 5.1 4.5 7.5 23 2.0 0.0 2.0 4.0

9 41 18.3 8.0 5.0 8.0 36 15.3 8.0 5.8 9.8 32 6.0 4.0 5.3 7.0 23 2.0 2.0 2,0 3.5

10 35 15.3 4.0 3.3 5.8 30 14.6 6.0 6.5 10.0 30 8.2 6.0 8.3 11.0 23 2.0 2.0 2.0 3.5

1 1 33 12.6 2.0 • 3.0 • 5.0 28 10.0 8.0 • 6.5 • 9.0 28 7.3 5.3 6.0 8.0 23 1.3 2.0 2.0 3.5

12 34 13.6 5.6 3.3 5.5 26 14.0 6.0 5.3 7.8 26 8.0 4.0 • 5.5 8.0 23 2.0 2.0 2.3 4.0

1 3 35 18.0 6.0 3.5 4.0 26 12.6 5.6 5.0 7.5 29 6.4 8.7 7.5 12.0 23 4.0 2.0 2.3 4.3

14 33 16.1 4.0 4.0 6.5 24 17.5 4.0 4.5 7.5 27 13.1 5.0 • 7.0 • 9.5 23 2.2 2.2 3.0 4.8

! 34 16.7 4.6 3.0 5.0 28 13.5 6.0 4.0 5.5 31 10.6 5.0 4.3 7.3 23 2.3 2.0 2.0 3.8

6 35 17.5 4.0 3.5 6.0 34 14.4 10.1 4.0 8.5 33 9.1 4.7 4.3 7.0 23 0.1 2.0 2.0 3.5

1 7 41 13.5 6.0 3.3 5.8 42 11.3 8.0 4.8 8.3 36 6.0 6.0 4.3 7.3 23 2.0 2.0 1.5 3.0

ie 49 18.0 6.0 5.5 8.0 46 10.0 6.0 5.5 10.5 34 8.0 4.0 4.3 7.0 23 1.1 2.0 1.5 3.0

i 9 53 16.0 5.1 8.0 16.5 48 9.1 6.0 7.0 11.5 32 6.0 2.0 4.5 6.5 23 2.0 2.0 1.5 3.5

20 57 12.0 6.0 9.. 14.8 48 8.2 4.0 7.5 12.8 32 3.1 2.0 3.5 5.5 21 2.0 0.0 2.0 3.5

2 59 10.0 6.0 8.8 13.3 50 7.1 4.0 6.0 10.0 32 4.0 2.0 4.5 6.0 21 2.0 2.0 2.0 3.5

22 59 10.0 6.0 8.5 14.0 50 7.1 3.1 6.5 9.5 34 6.0 4.0 3.5 5.5 21 2.0 2.0 2.0 3.5

23 59 11.1 4.0 5.5 9.0 50 6.0 4.0 5.5 8.5 32 3.1 3.1 3.5 6.0 21 2.0 0.0 2.0 3.5

« Fewer thon 15 days data on power measurements ond no computations mode for D u andD/.

3* Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above Mb.

D u

- ratio of upper decile to median in db. D/ - ratio ot median to lower decile in db.

V(j m

= median deviation of average voltage in db below mean power.

L,j m = median deviation of overage logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION KEKAHA, HAWAII LAT. 22.0 N LONG. IRQ. 7 w FEBRUARY 1965

H

R FREQUENCY (Mc)

k

T.

.013 .051 .160 .495

°u °/ Vdm L dm 'am Du °J vdm L dm Fam Du V Vdm L dm Fom % °/ Vdm L dm

00 152 4.0 2.0 8.8 14.0 128 4.3 6.0 10.0 15.0 104 12.1 6.0 10.0 16.5 84 14.3 7.7 12,3 19.5

01 152 4.3 2.0 9.5 15.0 128 7.7 5.7 10.0 15.0 106 10.0 6.1 9.5 16.0 84 13.9 6.1 •11.0 18.5

02 152 4.0 1.7 10.0 16.0 128 6.4 4.1 10.0 16.0 104 11.8 6.0 9.8 16.3 82 17.5 6.1 • 8.0 •13.5

03 154 2.3 4.0 9.5 15.0 128 6.3 5.7 11.0 17.0 104 17.9 6.0 10.8 17.5 82 20.0 5.7 12.0 18.0

04 154 2.4 3.7 9.3 15.3 128 4.8 5.7 •11.5 •17.5 102 12.6 4.0 11.0 19.0 82 18.0 7.7 10.5 17.0

05 154 2.6 3.7 9.5 15.5 128 7.9 5.7 12.0 19,0 102 15.4 6.1 12.0 18.0 80 17.2 6.3 •10.5 •17.0

06 154 2.3 2.1 9.5 15.0 128 4.4 3.7 12.0 19.0 98 17.2 4.1 10.5 17.5 74 21.9 5.7 • 8.3 •12.8

07 154 2.1 3.7 9.5 15.5 122 7.9 4.0 11.0 17.5 88 20.8 5.7 8.5 17.5 62 23.0 6.0 • 5.5 • 8.5

OS 150 2.1 3.7 9.5 15.5 116 6.1 3.7 •11.0 • 16.8 78 23.4 9.7 • 8.0 •13.3 56 16.2 4.2 • 3.0 • 5.3

09 14R 2.1 2.0 9.0 15.5 108 8.1 10.0 12.0 18.0 78 16.1 15.2 9.5 15.5 56 17.1 6.0 • 4.0 • 6.5

10 148 4.1 2.0 9.5 16.5 106 12.9 8.2 8.0 10.0 76 18.5 12.3 • 7.0 •12.5 58 12.4 7.9 • 4,5 • 8.8 " 148 4.0 2.0 9.5 17.0 10B 13.5 8.4 •11.3 •14.8 73 22.6 9.0 •10,8 •16.0 S4 26.1 4.2 • 3.5 • S.5

12 149 3.1 3.0 10.0 17.0 110 9.9 6.4 14.8 18.5 78 16.0 14.5 56 11.4 6.7 • 4,3 • 7.3

3 150 2.0 2.3 11.0 18.3 no 8.0 10.0 •13.5 •23.0 76 18.0 14.0 •10.5 •18.0 56 23.4 6.0 •11.3 •17.8

i a 148 4.0 2.2 11.3 19.5 108 8.3 6.3 •15.0 •20.8 74 20.6 12.0 •14.-0 •21.5 56 16.5 6.0 • 4.3 • 7.0

5 14A 2.4 2.0 11.0 19.5 108 6.8 6.3 12.0 16.0 72 28.6 10.0 8.0 14.0 54 17.0 4.5 « 5.3 • 8.8

16 148 4.0 2.0 11.5 19.5 106 9.9 6.1 10.0 13.5 72 18.4 6.1 • 8.5 • 15.0 56 16.4 5.9 • 3.8 • 6.5

17 148 2.1 3.7 11 .0 19.0 104 14.1 7.7 7.0 10.0 82 15.9 13.9 • 6.8 • 12.8 59 14.9 7.0 • 7.3 •12.0

8 148 2.0 4.0 10.0 17.0 114 8.1 14.1 5.0 7.5 92 14.2 14.1 • 9.8 •16.0 74 15,0 14.0 5.3 9.5

9 148 4.1 2.0 9.0 15.0 116 8.0 8.3 13.5 17.8 94 12.4 11.7 •12.8 •20.0 80 17.4 12.1 •12.5 •17.5

20 150 5.5 2.0 7.8 13.3 118 11.9 7.7 12.0 17.5 96 IS.

9

7.7 •12.3 •20.0 82 13.5 11.5 •11.5 •17.0

2 1 152 2.0 4.0 7.0 12.0 120 8.2 6.3 11.

S

16.3 102 13.8 10.3 •13.5 •22.0 82 13.5 6.1 •11.0 •16.5

22 152 3.9 2.0 7.0 12.0 124 11.0 8.1 11.5 16.5 102 8.6 6.1 12.3 19.0 84 12.4 8.0 •10.8 •18.5

23 152 4.0 3.7 7.5 13.3 126 7.9 6.1 10.0 14.3 104 15.5 8.1 11.0 17.0 86 13.9 8.1 •13.0 •20.8

H

R. FREQUENCY (Mc) L

S.

T.

2.5 5 10 20 am °u °J Vdm L dm am Du °/ Vdm L dm am Du °J vdm LJ» Fom Du °J V(*> u dm

00 60 11.9 4.0 6,8 10.8 50 8.1 4.0 4.8 8.0 34 10.2 3.7 3.5 5.3 25 4.3 2.0 2.0 3.5

01 60 14.2 4.0 7,3 11.5 52 8.6 4.0 4.3 7.3 36 8.0 4.1 2.5 4.8 25 2.4 2.0 1.8 3.5

02 62 11.9 6.0 7.3 11.0 52 10.0 4,0 4.5 6.8 38 6.0 4.1 3.5 6.5 25 4.0 2.0 2.0 3.5

03 62 11.7 4.0 8.0 12.5 50 10.3 3.7 4.8 8.0 38 6.3 6.0 3.5 5.0 25 4.1 0.1 2.0 3.5

04 62 11.6 b.7 7.0 12.5 50 10.0 2.1 4.5 7.5 34 7.6 4.0 2.5 4.0 25 5.7 0.0 1.5 2.8

03 62 6.1 5.9 7.5 11.3 50 7.9 3.7 4.0 7.5 32 10.1 2.0 2.0 3.5 25 4.0 0.0 1.5 3.3

06 62 4.1 4.3 6.5 10.5 48 6.1 4.0 3.5 5.5 32 9.9 2.0 2.0 3.5 25 3.9 0.0 1.5 3.0

07 56 7.7 3.7 6.5 9.8 46 6.2 5.7 4.0 7.3 34 6.1 2.0 3.5 5.0 25 3.7 0.0 1.5 3.0

08 46 6.0 3.9 3.8 5.5 38 7.7 2.0 3.5 5.5 32 5.7 2.1 ^4.5 7.3 25 2.2 0.0 2.5 4.0

09 38 9.5 2.0 3.0 5.0 32 6.0 6.0 5.0 7.5 28 5.6 4.0 4.8 6.8 PS 2.0 2.0 3.0 4.5

10 36 12.2 5.7 3.3 5.0 24 14.4 4.0 3.0 5.0 24 10.6 4.0 5.5 7.5 ?3 3.7 0.0 • 2.5 • 4.0 " 36 10.2 6.2 2*5 4.0 24 14.1 5.9 • 2.8 • 4.8 21 7.6 3.0 • 7.5 •14.3 23 2.2 2.0 2.5 4.3

12 34 6.4 4.2 2.0 4.0 22 13.8 4.0 3.8 6.3 20 8.5 2.0 • 6.0 • 8.3 23 2.7 2.0 2.0 4.0

13 34 10.3 4.3 3.0 5.0 24 8.5 4.5 2.0 4.0 22 6.3 2.3 • 5.5 a 8.0 23 4.0 2.0 2.5 4.0

14 34 7.9 4.0 2.5 4.0 24 10.0 6.0 • 4.0 • 5.5 22 6.3 2.0 • 6.0 • 8.5 23 4.5 2.0 • 2.8 • 4.5

13 36 6.3 4.0 2.5 4.3 25 9.2 5.2 3.5 5.0 26 8.6 4.0 • 8.3 •12.5 23 4.0 0.0 3.0 4.5

IS 36 7.6 2.1 2.3 3.8 32 6.1 8.1 3.5 5.5 32 4.0 5.9 4.8 7.0 23 2.1 0.0 2.0 3.5

17 40 6.1 6.1 4.0 5.5 40 7.9 6.1 7.5 11.8 36 2.0 5.7 4.5 7.0 23 2.0 o.o 2.0 3.5

ie 48 13.9 6.1 8.5 12.5 46 10.0 8.0 7.0 10.0 36 4.0 4.0 5.0 7.8 23 3.9 0.0 2.0 3.5

19 58 8.3 8.1 10,3 13.8 46 8.0 6.0 5.8 9.5 32 8.0 0.1 4.D 6.0 23 3.7 0.1 1.5 3.0

20 60 10.0 8.1 7.5 12.5 48 7.7 6.0 5.5 10.0 34 7.5 2.1 3.5 5.5 23 6.3 0.0 1.5 3.5

21 6n 8.3 4.1 11.0 18.0 50 6.1 5.7 4.0 7.0 34 9.7 2.1 3.0 5.0 ?5 5.5 2.0 2.0 3.5

22 60 11.5 6.0 10.0 16.0 50 8.1 5.9 5.0 8.0 36 7.9 5.7 3.0 5.0 25 5.7 2.0 1.5 3.0

23 60 6.7 4.0 7.5 13.0 50 8.2 3.7 5.5 8.5 36 9.7 4.1 3.0 5.0 25 7.5 2.0 1.5 3.0

8 Fewer thon 15 days data on power measurements ond no computations made for OjOndD/.

" Fewer than 7 days data on voltage ond logarithmic measurements.

F Qm = median value of effective antenna noise in db above ktb. D u

= ratio of upper decile to median in db. D^ = ratio of median to lower decile in db. ^dm = median deviohon of average voltage in db below mean power.

L(j m

= median deviation of averoge logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION HEv DELHI, INDIA LAT. 28.8 N LONG. 77.3 E DECEMBER 196*

HR FREQUENCY (Mc)

k

T.

.013 .051 .16(1 .495

Fam Du °/ Vdm L dm Fom D„ °J Vdm L dm Fom Du 0/ Vdm L dm Fam Du D/ vdm L dm

00 158 1.7 4.0 5.5 8.0 130 4.0 11.5 * 8.5 • 12.5 108 9.4 4.5 7.5 11.0 88 14.7 4.0 2.0 4.0

01 156 2.1 1.6 6.0 8.5 132 9.8 11.9 • 11.3 • 16.5 108 14.7 8.0 7.5 12.0 88 6.8 4.2 3.5 6.0

02 156 3.5 1.5 5.8 8.5 132 1.4 10.0 • 5.0 • 8.0 107 14.4 8.8 8.8 13.3 86 19.4 2.0 3.5 6.5

3 156 7.2 2.0 6.0 9.0 130 4.2 11.7 • 7.5 • 11.0 104 9.7 6.3 8.8 12.8 86 7.0 4.0 • 4,0 » 7.0

04 156 6.0 2.0 6.5 9.5 126 6.0 8.0 •10.0 •13.0 104 7.7 6.2 8.0 12.3 86 5.1 2.1 • 5.0 • 7.0

05 156 3.9 1.7 7.0 10.0 127 15.6 9.0 11.0 15.5 107 18.8 9.9 7.0 11.5 84 14.4 4.0 • 10.0 • 17.5

06 156 4.6 2.0 7.8 11.3 122 6.7 4.0 • 6.5 • 10.0 100 19.1 10.0 • 8.3 • 12.5 78 5.9 4.2 3.0 5.0

07 154 2.3 2.0 5.5 8.0 118 4.0 4.0 • 7.0 • 9.8 92 25.9 6.1 • 8.5 • 12.0 72 8.6 6.0 • 2.0 • 4.0

3 152 2.4 2.0 5.5 8.5 114 10.4 4.0 • 7.0 •10.3 92 22.0 10.0 • 5.5 • 11.5 70 18.5 2.0 1.5 3.5

9 152 2.2 4.0 5.5 8.0 111 5.9 3.9 • 3.8 • 6.0 90 8.7 6.1 • 6.0 • 10.5 71 9.1 3.0 • 1.5 • 3.0

10 152 2.0 2.1 6.0 8.0 114 4.0 3.1 » 5.0 • 8.0 90 10.0 4.9 • 8.0 • 13.0 72 8.0 4.0 2.5 4.0

11 152 3.7 2.3 5.5 7.8 114 2.6 3.4 • 3.3 • 5.5 92 6.0 9.3 72 8.3 4.3 • 3.0 • 4.5

12 152 3.9 2.1 5.5 8.0 114 6.4 5.5 • 2.5 » 5.0 90 6.0 9.0 • 7.8 •11.8 72 10.0 4.0 » 3.0 • 5.0

1 3 153 1.1 6.3 6.5 8.0 114 2.7 2.7 • 5.0 • 7.S 92 5.3 6.0 • 4.5 • 7.5 72 8.7 4.0 • 3.8 • 4.8

4 154 2.2 6.3 6.5 9.5 114 1.6 2.1 • 4.0 • 6.0 87 7.6 6.2 72 3.1 4.0 • 2.5 a 4.

a

I 5 154 3.9 2.1 7.0 9.5 113 14.3 3.0 • 5.0 • 7.0 90 6.5 8.0 • 12.8 • 18.0 70 6.8 2.1 • 2.5 • 4.0

16 156 2.0 2.0 6.3 8.8 112 4.5 4.0 • 4.5 • 7,0 91 18.9 5.2 •10.5 • 18.0 74 11.4 4.1 4.5 6.0

17 156 2.0 2.0 S.O 7.5 116 7.1 4.0 5.8 8.5 100 10.6 8.0 7.5 11.5 78 11.0 6.0 4.5 6.0

IS 156 2.0 0.0 6.0 8.5 118 5.3 3.3 7.5 10.5 104 14.3 8.3 • 7.5 • 13.0 82 8.3 5.7 6.0 8.0

19 158 0.0 2».l 5.5 8.0 120 4.7 4.0 •10.0 •13.5 102 15.2 4.0 • 9.5 • 14.5 84 4.2 4.0 5.0 7.5

20 158 2.0 2.0 6.0 8.5 122 7.9 5.6 8.5 12.0 110 8.3 8.6 • 9.0 • 15.8 84 6.7 2.1 4.8 7.0

21 158 2.1 2.0 5.5 8.5 128 4.2 9.7 » 7.8 •12.0 108 8.9 4.9 6.5 11.0 88 4.0 6.0 3.0 5.5

22 158 2.0 2.0 5.5 8.0 128 5.7 8.0 • 5.0 • 8.3 112 8.0 6.7 • 7.5 • 13.0 8S 4.0 4.1 » 3.3 • 5.5

23 158 2.0 3.6 6.0 8.5 132 2.8 14.0 •12.0 •17.0 112 10.2 5.1 • 6.0 • 9.0 SB 7.4 4.0 • 9.5 •13.8

H

R. FREQUENCY (Mc)

L

5

T

2.5 5 10 20

am °u DJ

vdm L dm am D

u ** vdm L dm am °u °J vdm L dm am \ *>J V(** L dm

OO 58 14,0 4.0 3.0 6.0 58 13.9 5.0 3.0 6.0 40 6,0 7.5 3.5 6.0 24 3.0 1.0 1.5 2.5

01 59 13.0 6.0 3.8 7.0 62 12.7 8.0 3.3 6.0 38 8.0 6.0 3.0 5.8 24 1.0 1.0 1.0 2.5

2 57 15.1 6.7 3.5 6.5 58 11.5 7.0 3.0 6.0 42 5.7 10.1 3.5 5.5 24 2.0 1.0 1.5 2.8

03 59 16.7 5.7 3.0 6.0 60 17.1 6.1 3.8 6.8 40 5.9 6.0 • 3.0 • 5.5 24 2.9 1.0 2.3 4.0

01 57 15.4 3.4 3.5 6.3 62 13.9 8.0 3.5 6.0 38 8.1 6.0 • 2.5 • 5.3 24 3.0 1.0 • 2.0 • 3.5

5 58 16.1 4.6 3.0 6.0 54 21.0 4.0 3.5 6.8 37 11.6 5.0 2.5 4.5 24 2.7 1.0 2.0 3.5

06 56 16.3 4.3 3.0 6.0 54 23.7 5.9 3.5 6.5 36 8.4 2.1 • 2.5 » 5.0 24 2.0 1.0 2.0 3.S

07 50 22.0 3.9 4.0 6.5 50 24.0 8.0 3.0 6.0 40 10.3 6.3 4.0 6.5 24 2.9 1.0 2.0 3.5

8 48 20.0 6.0 3.5 6.0 46 15.9 8.2 • 3.5 • 6.5 40 6.5 7.0 5.0 8.5 24 1.8 1.0 2.0 3.3

09 46 14.0 4.0 • 2.5 • 5.0 42 18.2 8.0 4.5 8.5 40 5.1 5.2 • 7.0 • 10.0 24 3.3 1.0 2.0 3.8

!0 46 14.0 4.0 • 4.5 • 8.0 40 14.3 8.0 6.0 8.0 40 2.3 8.0 • 7.0 • 9.0 24 3.3 1.0 » 2.5 • 4.0

1 1 44 12.7 2.7 2.0 3.5 35 17.0 3.0 • 5.0 • 10.0 38 4.0 5.8 4.5 7.0 24 2.0 1.7 2.0 3.5

12 48 16.0 11.4 • 6.3 » 9.8 36 23.6 8.9 • 5.8 • 7.5 34 10.0 5.1 4.0 6.0 25 2.0 2.0 2.0 3.5

13 45 23.0 5.0 • 2.5 » 4.5 40 28.0 6.3 • 5.0 • 7.5 34 4.4 2.0 • 3.0 » 4.5 26 6.4 1.9 2.3 3.5

14 48 16.4 8.0 • 6.0 • 8.5 39 17.9 7.0 • B.3 • 12.0 36 6.2 2.0 • 3.3 • 5.3 26 6.5 2.7 • 3.0 • 4,0

15 45 10.3 5.6 » 6.3 • 9.5 45 16.5 9.0 • 3.5 • 6.0 42 2.0 7.9 • 5.0 • 7.5 30 6.9 5.1 • 2.8 • 4.8

IS 45 16.9 5.2 2.5 4.0 4B 11.0 6.0 • 3.5 « 7.0 42 4.0 9.6 3.3 5.5 26 3.7 2.0 2.0 3.5

17 50 20.0 6.1 3.0 5.5 55 15.2 8.6 3.5 6.3 46 8.0 6.0 • 4.0 • 5.5 25 2.0 1.1 2.3 3.8

18 56 16.0 6.3 3.0 6.0 55 21.0 9.9 3.0 5.3 46 8.1 6.1 • 2.5 • 4.5 24 2.0 1.0 1.5 2.8

19 56 14.5 5.4 2.8 5.8 56 21.2 7.9 3.0 6.0 42 4.2 4.0 • 3^0 • 5.0 24 0.9 1.0 1.5 2.5

20 58 13.6 4.4 3.0 6.0 54 ?2.4 4.0 3.3 6.0 44 2.1 4.0 3.5 5.8 24 1.0 1.0 1.0 2.5

2 58 14.0 4.0 2.5 6.0 59 1 1.8 7.0 2.8 5.3 42 4.0 7.5 3.0 5.0 24 1.0 3.0 1.3 2.5

22 56 16.0 2.8 3.0 6.0 62 12.0 10.0 2.5 5.5 38 8.0 6.0 2.5 5.5 23 1.5 2.5 1.0 2.5

2 3 60 12.0 7.5 3.0 6.0 60 10.0 4.7 2.8 5.5 40 5.5 7.5 3.0 5.5 24 3.0 3.0 1.0 2.5

» Fewer than 15 days data on power measurements and no computations made for D u andD/. « Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above Ktb. Dj = ratio of upper decile to median in db. D^ = ratio of median to lower decile in db.

Vjj m

= medion deviation of average voltage in db below mean power.

L(j m = median deviation of overage logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION NEW DELHI, INDIA LAT. 28.8 N LONG. 77.3 E JANUARY 1965

H

R. FREQUENCY <Mc)

T.

.013 .051 .160 .495

Fom °u D/ Vdm L dm *am Du °I Vd m L dm ^om Du °7 Vdm L dm Fom °u D/ Vdm 'dm

00 158 1.5 3.5 6.8 9.5 133 4.0 4.0 9.0 12.5 108 6.0 6.0 7.8 12.0 91 7.0 3.0 4.0 6.5

01 156 3.3 2.0 7.0 9.5 133 4.0 5.3 9.0 13.0 108 9.3 7.3 7.5 12.5 92 5.3 6.0 5.0 8.0

02 156 4.0 2.0 7.3 9.8 133 6.6 5.3 9.8 13.5 106 12.0 7.5 7.0 10.5 90 7.3 4.0 4.5 6.5

Oi 156 4.0 1.3 7.3 10.0 132 6.3 4.3 9.5 13.0 104 11.3 6.6 7.5 10.8 90 6.0 6.0 • 6.3 • 8.8

04 156 5.6 1.7 7.3 9.5 131 5.3 4.0 9.5 13.5 104 11.3 8.6 8.8 13.0 86 9.3 4.0 4.3 6.5

05 156 4.0 2.0 7.0 9.3 131 6.0 4.0 8.8 12.0 106 12.0 9.5 • 8.5 • 15.0 85 12.8 5.0 3.5 5.0

Ob 156 4.0 2.0 7.0 10.0 127 9.5 4.0 8.5 12.3 101 15.8 8.2 7.0 10.5 82 10.4 8.0 3.0 4.8

or 154 4.0 2.0 6.5 9.0 123 6.0 4.0 7.5 9.5 94 9.8 11.3 » 5.3 ft 8.3 78 6.6 5.3 3.5 5.5

OS 152 4.0 2.0 5.8 8.3 117 11.5 2.0 5.3 7.5 92 4.0 12.0 4.0 6.5 76 8.0 6.0 3.5 5.0

09 152 4.0 2.0 5.8 8.0 117 3.3 4.0 3.5 6.5 92 7.3 6.6 • 4.0 » 6.0 77 7.0 7.0 2,5 4.5

10 152 4.0 2.0 6.5 9.5 117 5.9 4.1 5.0 7.0 94 6.4 8.0 » 6.3 • 10.0 76 6.1 6.0 3.0 5.0

'

' 154 2.0 4.0 7.0 9.0 117 7.5 2.0 5.5 7.5 92 8.3 8.0 » 3.5 ft 5.5 80 5.1 10.0 3.0 5.0

12 154 2.1 4.0 6.0 8.5 119 6.4 4.2 • 5.3 » 7.0 94 18.0 10.6 * 4.5 • 7.5 82 4.9 12.0 • 3.5 • 5.0

3 154 2.0 4.0 6.0 8.5 119 7.9 6.0 7.0 9.3 96 14.0 9.0 ft 6.0 • 10.3 76 10. 6.0 • 3.5 • 5.5

14 154 2.0 4.0 7.0 9.5 121 8.2 7.1 7.5 9.5 92 13.4 8.0 • 6.8 * 8.3 76 8.5 4.5 4.0 5.0

11 154 4.0 2.0 6.8 8.8 118 7.9 3.0 7.5 10.0 92 10.7 10.7 • 6,5 ft 7.5 74 8.0 4.0 3.8 5,0

16 156 2.0 3.3 7.0 8.0 117 11.3 2.0 9.5 11.5 96 13.1 11.2 6.5 9.0 79 10.3 7.0 3.5 5.5

17 156 2.0 2.0 6.0 8.0 12? 11.6 5.0 8.5 11.5 102 11.9 9.5 7.0 10. S 84 17.8 11.3 5.0 9.0

IB 157 2.3 2.3 6.0 B.O 125 11.5 8.0 8.5 12.0 108 12.2 11.

B

9.5 12.5 85 19.8 7.1 5.8 7.3

s 158 3,3 3.3 6.0 8.0 125 11.3 6.0 8.5 11.5 106 12.0 ll.fi 7.3 10.8 86 18.5 5.7 5.0 7.5

£0 158 2.0 2.0 6.0 8.3 129 7.0 6.0 8.5 10.8 108 10.0 5.9 « 7.0 •10.0 88 10.0 4.0 5.0 6.0

21 158 2.0 2.0 6.8 9.5 131 5.3 4.0 6.5 9.5 108 8.2 7.6 • 7.0 • 12.0 88 10. 2.0 5.5 7.8

22 158 2.0 2.0 7.0 10.0 131 8.4 4.0 8.0 10.0 112 9.9 9.9 7.0 9.5 88 13.0 4.0 5.5 6.5

21 158 2.0 2.0 7.5 10.0 133 2.0 5.3 8.0 11.5 112 7.5 8.0 7.0 11.0 91 6.3 5,0 4.5 4.5

H

R. FREQUENCY (Mc)

L

S.T

2.5 5 10 20 am °u °J vdm Ldm om Du D/ Vdm L dm om Du D/ vdm L dm om D

ll °J Vdm L dm

00 69 4.0 10.6 3.5 6.0 67 4.0 6.0 3.5 6.0 51 4.0 8.3 3.5 5.5 23 2.0 0.0 1.5 2.8

01 69 6.6 11.3 3.8 6.5 67 5.3 7.3 3.0 6.0 51 4.6 6.0 2.8 5.0 24 1.0 1.0 1.8 3.0

02 69 6,6 8.0 3.5 6.5 65 6.0 4.0 3.8 5.8 52 3.5 9.0 3.0 5.5 25 1.8 2.8

O J 69 5.3 10. 3.5 6.0 65 5.3 8.0 4.0 5.5 51 4.0 6.5 2.5 4.5 25 1.7 2.0 1.5 3.0

04 69 4.0 11.5 3.5 6.0 65 4.0 8.0 4.0 6.5 51 4.0 6.4 3.0 5.0 25 • 1.5 • 2.8

5 69 4.0 11.3 3.0 6.0 65 2.0 12.0 4.0 7.0 51 2.3 8.1 3.5 6.0 25 2.0 3.5

06 69 3.5 13.0 3.0 5.5 61 8.0 8.0 3.8 6.0 51 4.0 6.3 • 2.5 « 4.5 25 2.0 0.0 2.3 3.8

07 63 8.0 11.5 3.5 6.3 61 8.0 8.0 3.3 6.5 53 4.3 4.0 » 4.0 * 6.0 25 2.0 0.7 • 2.5 • 4.3

08 65 6.0 17.5 3.5 6.5 63 6.0 24.0 • 3.0 • 6,0 52 2.5 5.5 • 3.5 • 5.5 25 2.0 2.0 2.0 3.5

09 59 13.3 12.0 3.5 6.5 61 8.0 22.0 4.5 7.5 51 4.2 5.9 5.3 7.5 25 3.3 2.0 2.0 3.8

10 57 15.5 13.5 3.5 5.0 61 8.3 26.0 4.0 7.3 49 4.0 6.0 3.8 5.3 25 2.1 2.0 3.0 4.0

i 1 58 14.6 13.1 3.0 6.0 59 9.9 20.3 5.0 7.5 48 5.0 7.0 • 3.5 ft 5.5 24 3.0 1.5 2.5 4.0

12 65 6.0 20.3 3.5 6.5 57 10.5 22.0 • 4.3 • 7.3 51 2.0 11.5 o 3.5 ft 5.5 25 11.4 2.0 • 3.0 • 4.0

13 67 4.0 22.0 • 3.5 • 6.5 61 7.1 24.2 4.0 7.0 50 3.0 9.2 • 4.5 a 7.0 33 6.8 9.6 • 2.5 » 3.5

\6 57 14.0 12.6 4.S 7.5 52 15.0 17.9 • 4.5 • 8.3 51 2.3 10.0 ft 2.0 ft 3.5 33 8.0 8.0 ft 4.5 • 7.5

15 59 12.0 13.9 • 4.0 • 7.0 55 12.0 15.8 • 8.0 •10.0 49 6,0 5.4 o 3.5 ft 6.0 34 6,6 10.6 4.5 6.5

16 61 8.0 15.7 • 3.5 • 5.5 59 8.0 14.0 4.0 6.5 52 3.3 7.0 o 4.0 „ 6.0 35 7.5 10.0 3.0 4.5

7 63 8.0 14.0 4.0 6.0 59 10.0 11.9 • 4.5 • 7.5 59 8.9 8.0 a 7.0 • 10. 26 11.1 3.0 3.0 4.0

18 67 7.6 14.5 4.5 a.

3

61 6.0 9.8 4.0 6.0 60 9.5 7.0 a 6.3 • 9.0 23 4.0 0.0 2.5 4.0

19 65 7.9 13.7 4.0 6.5 65 2.0 13.3 3.5 6.0 55 4.0 6.6 ft 3.0 * 5.0 23 2.0 0.0 1.5 3.0

JO 67 5.6 13.6 4.0 6.0 65 4.7 12.1 3.0 5.5 55 4.0 6.3 • 3.5 • 6.0 23 2.0 0.1 1.5 3.0

21 69 3.6 13.2 • 5.0 • 7.0 65 6.4 11.7 3.5 5.5 55 4.5 4.5 3.5 5.0 23 2.0 0.1 2.0 3.0

22 69 4.0 13.5 3.0 5.0 65 4.0 11.9 3.5 6.0 53 3.4 6.7 3.3 5.0 23 2.0 0.1 1.5 2.8

,i 69 4.0 11.5 3.5 6.5 67 2.0 8.0 3.0 5.5 51 2.5 8.5 2.5 4.5 23 2.0 0.0 2.0 3.5

Fewer Ihon IS Fewer thon 7

Du =

median v ratio of Oj ratio of v dnV median

L dm medion

days data on power measurements and no computation: days data on voltage and logarithmic measurements.

/olue of effective antenna noise in db above ktb. upper decile to median in db. median to lower decile in db. deviation of average voltage in db below mean power. deviation of average logarithm in db below mean power.

mode for D u andD/.
MONTH

STATION NEW DELHI, INDIA

•HOUR VALUES OF RADIO NOISE

LAT. 28.8 N LONG. 77.3 E FEBRUARY 1965

H

R FREQUENCY Mc)

k

T

.013 .051 .160 .495 om °u V Vdm L dm *bm Du °J Vdm L dm Fom Du D/ Vdm L dm Fom Du oy Vdm L dm

00 159 4.0 2.2 5.5 8.5 133 9.9 4.0 7.8 10,8 109 13.7 5.7 9.5 14.5 92 11.9 6.0 5.3 8.3

ot 159 4.0 3.9 6.5 9.0 132 9.1 3.0 8.0 11.5 109 10.3 6.0 9.0 12.5 91 13.5 4.0 4.8 7.5

02 157 4.0 2.3 5.8 8.8 131 7.9 3.9 7.5 11.0 108 9.1 5.2 9.0 14.5 90 12.3 4.0 4.5 7.0

03 157 4.2 2.0 6.0 9.0 133 4.0 6.0 7.0 10.0 107 11.6 6.0 9.5 14.3 90 10.2 5.9 3.0 6,0

04 157 4.1 2.0 6.5 9.5 130 8.6 3.0 7.5 11. 105 8.6 6.3 7.5 13.0 86 10.3 3.7 2.8 4.8

05 157 2.1 3.7 6.5 9.5 129 7.6 3.7 8.5 11.0 105 11.4 7.9 • 10.8 • 14.8 84 12.5 4.0 3.5 6.0

06 158 1.2 3.0 5.8 8.8 125 8.3 2.0 6.3 9.3 96 18.0 7.0 • 4,0 « 6.5 78 1S.0 4.3 2.5 5.0

07 153 2.2 1.9 5.0 8.5 121 8.4 2.0 3.8 5.8 93 14.0 8.0 • 9.8 • 13.3 76 15.4 4.7 • 3.3 • 6.3

oe 153 2.0 2.0 4.0 6.8 119 10.0 2.0 2.5 5.5 89 18,0 5.1 » 7.0 • 10.5 78 11.4 5.0 2.8 4.6

C 9 153 2.0 2.0 4.0 6.5 119 7.4 4,0 3.5 6,5 91 16,6 7.3 « 5.8 . 8.8 76 16.7 5.4 3.0 7.3

10 153 2.0 2.0 5.5 8.3 121 8.0 6.0 3.5 7.5 92 11.6 7.0 • 11.0 • 20.0 76 15.8 4.9 » 5.3 • 8.3

1

I 153 2.0 1.5 5.5 8.5 121 4.-0 5.5 5.0 7.0 92 11.0 7.0 • 6.0 • 10.0 82 6.0 11.5 4.5 6.0

2 155 2.1 2.1 5.5 8.0 121 8.0 *.o 7.0 9.0 94 14.9 7.1 • 6.0 * 8.5 81 16.1 8.3 « 5.0 • 8.0

13 154 4.3 3.0 (t 7.5 »10.0 121 14.4 4.0 » 8.5 »12.0 93 25.6 6.2 80 11.5 11.8 » 3.5 • 5.0

14 155 2.1 2.1 » 5.8 * 8.8 125 13.1 8.0 5.5 8.0 97 24.0 10.6 9.-5 13.0 84 16.9 10.9 4.5 7.0

1 b 155 5.8 2.9 6.5 8.5 123 17.4 6.0 4.0 7.0 95 27.8 8.9 8.0 15.0 80 18.3 6.3 5.0 6.8

6 157 2.3 6.0 7.0 9.5 121 17.4 4.7 9.0 12.0 93 31.4 8.0 • 11.8 • 15.5 82 20.3 8.0 4.5 7.0

: 7 157 4.6 2.0 6.5 8.8 124 17.6 5.2 9.0 12.5 103 24.6 10.3 9.3 15.5 86 24.2 8.0 8.0 14.5

ie 157 6.0 3.9 5.8 8.0 125 20.0 5.7 9.0 12.5 109 18.2 12.4 7.0 14.5 90 19.8 8.1 6.5 9.5

19 157 7.9 2.1 6.5 9.0 127 18.6 6.0 9.5 13.3 108 18.9 8.9 11.0 15.0 92 14.0 9.9 8.8 12.8

2 159 3.7 2.0 6.5 8.8 129 14.1 4,0 7.3 10.8 111 13.5 9.7 8.8 14.3 92 15.6 10.0 6.5 9.8

2 159 3.9 2.0 6.0 9.0 131 10.4 2.0 6.8 8.8 109 14.6 8.2 7.5 12.5 92 16.0 8.1 7.0 13.0

22 159 5.7 2.0 6.0 9.5 133 10.0 4.0 7.3 10.5 115 12.0 8.3 9.0 13.5 94 16.0 10.0 6.0 8.5

23 159 4.3 2.0 6.0 8.5 131 12.0 2.6 7.8 11.0 112 12.0 7.0 6.5 11.0 92 15.9 6.2 4.5 6.5

HR FREQUENCY (Mc) L

S

T

2.5 5 10 20 om °u °J vdm Ldm om Du D/

vdm L dm am D

u °l vdm L dm am D

,l D* V L dm

00 64 11.0 9.0 « S.n • 7.0 61 8,1 4.0 » 5.0 • 7 .5 40 6.3 6.0 • 2.8 » 4.8 25 0.5 2.0 2.0 3.3

O! 65 7.8 8.9 • 4,0 • 7.0 59 8.7 8.7 * 4.5 * 7.0 39 9.0 7.0 • 2.0 » 3.5 25 0.7 2.0 2.3 3.5

02 63 8.7 8.0 » 3.5 « 5.5 57 7.4 2.0 4.5 7.0 40 5.4 8.0 • 2.5 • 4.0 25 2.0 0.0 • 1.5 • 3.5

03 61 12.0 6.7 » 3.5 * 5.5 58 7.5 5.5 • 3.5 * 5.5 38 10.3 4.3 2.5 4.5 25 2.0 0.0 • 1.3 • 2.8

4 63 8.7 8.0 • 3.5 * 5.5 56 8.0 5.0 » 4.3 • 6.5 36 10.7 4.0 • 1.5 • 3.5 25 2.0 0.0 1.5 3.0

5 61 10.7 6.7 * 2.5 » 5.0 55 9.0 4.5 » 5.0 * 7.5 36 10.0 2.0 » 2.0 • 4.0 25 2.0 0.0 • 1.0 • 2.5

06 59 12.0 4.0 » 1.5 » 4,3 55 12.0 6.0 • 3.5 • 5.5 40 8.7 6.7 • 1.5 • 3.0 25 2.0 0.0 • 1.8 » 3.5

07 53 15.3 5.3 • 5.5 • 7.5 49 10.6 2.8 * 3.0 • 5.0 42 6.0 8.0 • 4.0 • 5.5 .5 2.0 0.0 2.0 3.5

8 52 23.0 7.0 » 2.3 * 3.8 44 22.5 5.0 42 4.5 4.0 • 5.5 • 8.0 25 2.0 0.0 • 2.0 • 3.3

09 53 15.3 8.0 » 3.0 • 4.5 44 19.4 6.3 40 6.9 6.0 • 6.3 • 8.8 25 2.0 1.3 • 2.0 • 3.5

10 53 15.8 8.0 » 3.3 • 6.0 45 15.1 11.1 * 8.3 •12.0 38 9.3 3.3 • 6.8 • 11.0 25 4.9 0.0 • 2.5 • 3.5

1 1 53 19.7 8.0 * 3.5 » 6.0 41 29.2 4.1 » 4.0 • 6,5 40 7.7 8.9 27 2.6 4.0 • 3.0 * 4.0

2 53 19.6 8.2 • 5,5 • 8.0 44 24.6 9.4 • 8,3 » 8,3 39 9.0 7.? • 4.5 • 6.0 27 7.4 3.6 » 3.5 • 5.3

13 55 17.7 11.9 * 6,0 o 6.0 43 ?4.3 8.0 * 7.5 • 10.5 36 13.7 5.7 • 5.0 • 8.0 27 8.3 2.0 • 4.3 • 5.3

14 » 53 » 4.5 • 5.8 51 15.7 10.6 » 4.0 • 5.5 40 8.0 8.0 • 7.5 • 9.5 31 4.0 6.0 • 4,0 • 5.0

15 53 15.1 9.1 o 4.8 • 7.8 51 16.2 12.0 * 5.5 » 7.5 42 9.1 4.0 • 5.8 • 8.8 29 6.9 4.0 • 3.8 • 5.0

16 57 13.8 9.8 » 4.5 • 6.5 54 12.8 13.6 • 7.0 • 9.5 46 6.5 3.0 • 4.8 • 7.0 27 8.0 2.0 • 3.5 • 4.8

7 61 14.5 10.5 <t 6.3 » 8.5 55 12.1 6.0 » 9.0 • 11.5 58 4.0 12.0 • 9.0 • 13.5 27 9.9 2.0 3.8 6.0

s 63 14.3 10.0 * 7.5 » 9.8 57 12.0 8.0 • 9.5 •12.0 56 8.0 10.9 • 10.5 • 15.5 27 2.2 4.0 2.5 4.0

19 66 11.3 13.2 7.5 11.0 57 10.0 2.7 « 4.5 • 6.5 44 4.2 2.? • 5.5 • 7.5 25 2.0 3.5

2 64 11.0 11.3 • 4.5 » 7.0 59 9.4 8.0 • 4.0 • 6.0 48 4.0 6.1 • 7.5 • 9.5 25 3.9 2.0 2.0 3.5

21 65 10.3 10.2 * 4.5 • 7.0 58 11.1 5.7 » 4.3 » 6.5 44 6.0 4.3 • 3.3 « 5.0 25 1.7 2.0 • 1.3 • 2.5

22 65 9.9 9.7 » 5.0 • 7.5 61 8.6 7.9 4.0 5.8 44 4.2 7.9 • 3.5 • 5.5 23 2.6 0.0 • 1.3 » 3.0

?i 63 10.6 8.3 » 5.0 • 7.5 63 4.0 6.3 • 4,0 • 6.0 42 6.3 8.0 • 2.8 • 4.5 25 0.2 2.0 • 1.5 • 3.0

W Fewer than 15 days data on power measurements and no computations made for D u andD/.

fc Fewer than 7 days dato on voltage and logarithmic measurements.

F Qm = median value of effective antenno noise in db obove Mb.

D u= ratio of upper decile to median in db. D/ = ratio ot medion to lower decile in db.

V(] m

= median deviation of average voltage in db below mean power.

L(j m = median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION OHIRA, JAPAN LAT. 35.6 N LONG. 140.5 E DECEMBER 196*

H

R. FREQUENCY Mc)

k

T

.013 .051 .160 .495

am °u P/ Vdm L dm •bm °u D/ Vdm L dm Fam °u 0/ Vdm L dm Fdm Du °y Vdm L dm

156 4.0 2.0 • 10.0 •15.0 134 4.0 2.0 •12.5 •19.0 114 6.5 9.1 • 9.8 • 16.8 90 8.8 6.5 • 9.6 •16.0

01 158 1.3 4.0 12.0 17.5 134 4.0 2.0 •12.8 •18.5 113 6.5 9.0 •10.5 •17.0 90 8.6 6.6 • 7.8 •13.0

02 156 4.0 2.0 » 9.0 •13.0 136 4.2 6.0 12.5 19.5 114 3.5 11.1 •10.0 •16.5 91 6.3 7.9 • 9.8 •15.3

01 158 2.0 4.0 •11.8 •17.3 136 4.0 6.0 •12.0 •18.3 112 6.5 7.1 •12.5 •19.5 90 7.3 9.3 •17.0 •24.5

04 158 3.5 4.0 12.0 19.0 136 2.0 7.5 •12.0 •18.5 112 3.3 9.3 •10.0 •16.0 B8 7.2 11.5 •10,0 •18.0

5 158 2.0 2.0 • 12.0 •17.0 134 4.0 4.0 •13.8 • 21.3 108 8.0 7.3 •14.3 • 21.0 82 13.5 8.0 •12.8 •20.8

Ob 158 2.0 2*0 "12.0 •17.3 126 8.0 4.0 15.0 •22.0 96 18.0 7.7 •15.5 •20.0 73 17.0 9.7 • 9.3 •15.0

07 154 3.3 2.0 11.0 17.0 121 14.3 4.3 •12.8 •19.5 88 23.7 5.7 • 4.5 • 8.0 65 22.5 3.0

08 156 2.0 4.0 14.0 19.0 118 11.0 8.0 •14.3 •19.0 88 16.0 10.0 •11.5 •19.0 68 10.0 6.0 * 1.0 • 4.0

09 156 3.5 2.0 13.0 20,0 119 9.0 9.0 •12.0 •19.5 88 19.5 10.5 •10.5 • 18.0 65 23.1 7.4 • 1.0 • 3.5

10 156 3.9 6.9 • 13.0 • 19.5 120 8.0 4.0 • 15,0 • 22.0 85 11.0 7.7 •15.0 •21.0 67 13.3 6.4 • 3.0 • 5.5

1 1 156 2.0 2.5 • 16.5 •23.0 120 8.3 4.0 •16.0 •23.5 87 13.7 9.3 •16.0 • 21.3 65 10.6 7.0 • 12.5 • 16.0

2 156 2.0 3.7 15.0 20.5 120 9.7 4.1 •15.0 •22.0 87 12.1 10.0 •15.8 •22.0 65 11.7 5.0 * 4.8 • 7.3

3 156 2.0 2.0 16.5 21.0 120 6.0 6.0 •13.5 •20.0 88 10.2 10.8 • 6.5 • 7.0 70 14.4 B.O • 7.5 •10.3

14 156 2.0 2.0 13.0 19.0 120 5.7 5.6 •17.3 •23.0 86 11.8 8.8 •14.5 •21.3 65 12.5 6.7 • 7.8 •14.3

5 157 2.7 3.0 12.5 18.5 118 8.0 8.0 •11.5 •16.5 89 19.5 8.1 • 13.5 • 18.0 69 12.2 10.6 • 5.8 •10.5

16 156 2.1 2.0 11.5 18.0 120 7.5 10.0 •15.8 •21.5 92 12.0 11.0 •10.5 •17.0 74 10.0 8.2 • 7.5 •12.5

17 156 2.0 2.0 10.5 17.0 124 4.0 5.1 12.5 19.0 100 9.5 9.0 •12.5 •19.5 82 6.7 5.7 •10.8 •15.5

18 1SB 1.1 3.1 11.5 17.3 128 4.0 3.3 11.5 18.0 102 8.0 4.1 12.5 19.5 86 7.1 6.0 •11.0 •20.0

19 158 2.0 2.0 12.0 17.5 130 4.0 4.0 12.0 18.5 106 5.6 5.0 •11.5 •17.5 88 6.5 4.0 • 6.3 •11.8

20 158 2.0 2.0 •11.0 •16.0 132 2.0 5.3 •11.5 •17.8 109 5.1 7.5 9.5 16.5 90 5.9 6.1 •13.0 •19.0

21 156 3.3 2.0 10.8 17.5 132 5.3 2.0 11.0 19.0 110 7.3 5.3 • 8.5 •15.3 92 7.0 7.3 • 7.0 •11.5

22 156 3.3 2.0 10.0 15.0 133 5.0 3.0 12.0 17.5 111 7.8 4.8 • 8.8 •14.5 91 9.1 5.5 8.8 14.0

2! 156 2.0 2.0 12.0 17.0 134 5.3 4.0 12.5 19.5 113 6.3 7.0 •10.0 •16.3 91 8.6 6.3 • 8,0 •14.0

H

H, FREQUENCY (Mc)

L

S.

T. 2.5 5 10 20

am Du °J vdm L dm om °a °/ vdm L dm am D

u *l v dm L dm am D

« °J Vtfm L dm

00 60 4.6 6.0 •11.0 •17.0 56 5.0 5.1 • 4.5 • 6.8 32 13.4 4.0 a 4.0 • 7.0 21 0.0 0.0 1.0 3.0 58 10.0 5.3 • 5.0 • 9.0 56 4.6 3.1 • 2.0 • 4,5 39 16.3 11.0 • 4.5 • 6.5 21 0.0 0.0 tt 1.0 • 3.0

02 58 8.5 10.0 • 5.5 •10.0 57 5.7 4.0 • 4.0 • 6,0 36 12.1 8.0 • 3.0 • 5.0 21 0.1 0.0 • 1.3 • 3.0

03 58 9.9 4.2 5.8 •10,3 71 4.0 9.1 36 10.6 8.0 • 4.0 • 6.8 21 0.0 0.0 • 1.0 • 2.5

04 56 12.1 6.0 • 7.5 •11.0 69 6.0 10.0 • 8.0 •14.5 32 10.0 2.0 21 0.1 0.0 • 0.5 • 2.5

5 56 10.2 4.2 •10.0 •14,0 67 9.6 10,6 » 8.3 •13.3 32 6.2 3.9 • 3.0 • 4.5 21 2.0 0.0 • 1.6 • 3.5

06 se 11.7 9.3 59 11.0 5.5 36 6.5 4.5 • 3,0 • 6.0 ?3 0.0 2.0 « 1.5 • 2.5

7 51 11.2 4.9 66 5.0 21.3 • 7.5 •12.5 52 8.8 2Z.8 • 3.5 • 7.3 23 2.0 2.0 • 1.0 • 3.0

6 44 16.0 4.3 • 6.0 • 9.8 53 6.1 4.0 •13.0 •16.3 40 20.9 14.0 • 5.5 • 8.3 23 2.0 0.2 • 1.5 • 3.0

09 44 6.1 2.1 • 6.8 •10.3 39 12.0 4.0 • 7.5 •10.5 37 18.8 16.2 • 2.3 • 5.0 23 2.2 0.2 1.5 3.0

10 • 44 • 7.5 •10.0 38 9.1 6.6 • 7,5 •11.3 43 8.7 10.7 • 2.0 • 5.5 25 0.9 2.0 • 1.0 • 3.0

1 1 42 2.9 2.9 • 5.5 • 6.5 37 6.7 6.7 » 5.5 • 9.3 44 4.0 10.6 • 1.8 • 5.0 23 4.0 2.0 c 2.0 • 3.5

12 42 6.0 4.0 • 9.0 •12.5 36 9.1 5.0 7.5 10.5 44 *.2 10.1 • 3.0 • 6.5 23 2.3 2,0 1.5 3.5

13 42 6.0 2.0 • 7.0 •10.3 39 9.9 5.9 • 5.5 • 8.5 45 7.0 11.0 2.8 5.8 ?3 2.1 2.0 1.0 3.0

14 42 7.7 2.1 • 7.5 • 11.0 45 14.0 5.1 • 5,5 •10.0 46 8.0 9.5 • 4.0 • 6.0 23 2.0 1.9 n 0.5 • 3.0

15 44 7.9 3.7 6.0 9.0 61 4,0 10.0 • 4.8 • 9.3 54 6.0 16.7 • 4.5 • 7.5 23 2.0 0.0 1.5 3.0

16 46 8.2 4.0 7.5 11.3 63 6.2 6.6 • 8.0 •13.0 53 7.9 23.9 • 3.0 • 7.0 23 0.1 0.1 0.8 3.0

T 52 5.1 5.1 • 4,5 • 7.5 65 4.0 7.5 • 7.5 •13.3 54 6.0 16,4 • 2.8 • 6.8 23 0.0 2.0 1.3 3,0

6 54 7.6 2.1 • 5,0 • 8.5 65 5.9 24.7 • 7.0 •11.0 50 11.7 17.8 • 3.0 • 6,8 21 2.0 0.0 1.0 3.5

9 57 9.0 3.0 • 5.0 8.5 63 6.0 5.3 7.5 12.5 46 14.1 18.1 3.3 5.8 21 2.0 0.1 2.0 3.5

20 56 8.0 4.0 • 7.8 •12.0 67 2.0 25.7 • 6.3 • 9.5 44 6.1 10,1 • 3.5 • 6.5 21 2.0 0.0 » 1.8 • 2.8

21 60 6.3 7.7 • 6.5 •10.5 67 4.0 8.0 • 5.5 •10.5 39 10.4 7.0 • 3.0 • 5.0 21 0.0 0.1 1.0 3.0

22 60 9.7 9,9 » 7.0 •11.5 53 6.2 2.2 5.5 9.5 32 14.5 4.0 • 1.8 • 3.8 21 0.0 0.1 1.0 2.5

23 60 6.3 4.3 • 6.0 •11.0 53 7.9 2.3 2.8 5.8 34 12.5 4.5 • 1.5 • 3.5 21 0.0 2.0 1.5 3.0

* Fewer than 15 days data on power measurements and no computations £ Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenno noise in db above ktb. Dj = ratio of upper decile to median in db. D/ = ratio of median to lower decile in db.

V(j m

= median deviation of overage voltage in db below mean power. L (j m = median deviation of overage logarithm in db below mean power.

lode for D u andD^.
MONTH-HOUR VALUES OF RADIO NOISE

STATION OHIRA. JAPAN LAT. 35.6 N LONG. 1*0.5 E

H

R. FREQUENCY (Mc)

k

T.

.013 .051 .160 .495

Fom Du IV Vdm L,dm orp % °/ Vdm Ldm ^om Du 0/ Vdm L dm Fom Du °y Vdm L dm

00 155 4.0 4.0 • 8.3 •12.5 132 7.5 5.5 •10.0 •20.5 113 5.0 6.0 • 10.3 • 15.0 88 11.3 4.0

155 6.0 4.0 •12.0 •17.0 132 6.0 4.0 •10.5 •16.0 112 7.0 5.0 • 9.8 •16.0 90 7.5 4,0 • 8.5 •12.5

156 5.0 3.0 • 9.0 •13.8 134 5.3 6.0 •15.5 •22.3 111 10.0 5.5 •10.0 •16.3 90 8.0 7.3

155 5.3 3.3 • 12.0 •17.0 132 6.0 4.0 •11.5 •17,0 111 10.0 7.3 •12.0 •19.5 86 11.3 6.0

4 155 5.3 3.3 •11.

B

•17.5 132 5.6 6.0 •13.0 •18.3 109 6.0 7.5 •14.3 •21.0 86 5.5 10.0

US 157 2.0 3.5 •12.0 •17.5 132 5.5 5.5 •13.8 •20.0 106 9.0 6.3 • 9.5 •15.3 80 12.0 6.0 • 5.0 • 8.0

157 2.0 4.0 • 12.3 • 18.3 124 8.1 5.7 95 15.5 6.0 • 8.5 • 14.5 70 13.5 7.7

153 4.0 2.0 • 12.0 •17.5 120 6.3 8.6 •12.5 • 19.0 87 16.2 10.0 • 5.5 • 8.0 64 18.3 2.0

8 153 4.0 4.0 •14.5 •20.5 114 20.3 6.3 •12.3 •19.3 85 22.3 9.9 • 7.0 •11.0 66 24.1 5.9 •16.0 •27.0

ja 155 4.1 4,0 • 14.0 •20.0 112 18.2 4.2 88 19.1 11.1 66 22.6 4.3

155 5.3 4.0 •11.8 •18.3 118 14.0 10.3 •15.5 •23.0 87 24.0 13.9 70 14.0 10.0

155 '..0 5.3 •15.0 •21.5 118 14.0 8.0 •15.5 •22.0 87 18.7 13.4 70 14.1 10.0 • 5.0 • 6.5

12 155 3.6 5.6 •15.0 •21.5 118 10.2 8.0 •14,5 •21.5 81 26.6 8.3 • 5.5 • 7.5 62 24.8 2.0 • 3.5 • 5.5

155 2.0 4.0 15.5 18.5 118 11.3 5.7 •11.8 •18.5 81 21.0 8.0 •14.0 • 24.0 66 16.1 6.0

155 2.1 6.1 • 15.0 •21.3 117 11.5 7.0 •16.0 •22.0 81 21.9 8.4 •13.5 • 24.0 66 10.1 6.2 • 10.3 •16.3

157 2.0 6.0 •10.5 •15.8 114 14.1 6.0 • 9.5 •14.5 85 20.4 9.5 •16.3 •26.5 70 16.0 8.0 • 9.0 •11.5

16 155 t.O 4.1 10.5 16.0 114 16.0 8.0 •10.3 •13.8 89 23.8 9.5 •15,0 •27.0 72 19.5 6.0 •13.5 •25.0

155 4.0 4.0 •10.0 •15.0 118 17.0 10.0 •13.3 •18.5 95 15.7 8.0 •11.0 •17.0 no 12.0 6.0 •11.8 •19.0

15i 6.0 3.1 10.3 15.3 126 11.0 7.5 12.0 17.5 101 13.3 6.0 •12.5 • 20.0 R4 11.1 4.0 • 8.5 •13.5

19 156 4.3 3.0 10.8 16.0 128 9.5 4.0 •11.5 •16.5 105 8.2 8.0 • 6.5 •11.0 85 11.1 5.0 • 8.3 •14.0

20 156 3.0 3.0 •10.0 •15.5 130 8.0 4.0 •11.5 •17.0 106 9.0 7.0 • 8.8 •13.5 88 6.0 6.0 • 7.0 •10.0

21 155 5.3 2.0 O10.8 • 16.0 130 11.0 3.5 •12.0 •18.0 109 8.6 6,0 • 9,5 • 15.8 88 9.3 4.0 • 8.0 •13.5

22 155 4.6 2.0 •10.5 •16.0 130 8.0 4.0 •10.8 •15.8 109 6.0 5.3 • 8.5 • 14.5 88 13.0 6.0 •11.5 •18.0

155 5.3 4.0 10.5 15.0 131 9.0 4.3 •12.0 •16.5 111 9.3 6.0 • 8.8 • 14.5 88 11.3 4.0 • 7.5 •12.5

H

R. FREQUENCY (Mc)

L

S

T 2.5 5 10 20

Fam D

U °J vdm L dm am D

u °y vdm L dm am °u Dy vdm L dm am D

ll °J Vdm L dm

OO 58 13.9 6.0 • 9.0 • 5.5 56 10.6 6.8 • 4.0 * 6.5 33 12.7 4.0 • 1.0 • 2.0 22 2.0 2.1 O 1.0 • 3.0

u 60 8.3 10.3 • 7.8 •10.8 54 4.5 4.0 » 5.0 • 6.5 31 21.0 4.0 • 2.0 • 2.5 22 2.0 3.9 a 1.3 • 3.3

60 8.3 10.0 o 6.8 • 8.3 56 4.0 2.0 • 3.0 • 4.5 35 14.0 7.1 • 2.0 • 4.0 22 2.0 2.0 O 0.5 • 2.5

60 8.0 10.3 • 8.5 • 9.5 70 4.1 6.0 • 5.3 • 6.3 36 19.0 7.0 22 2.0 2.0 * 2.0 • 3.0

04 58 10.6 7.8 • 8.8 •13.5 68 4.3 9.1 • 4.5 • 3.5 33 8.0 6.0 • 7.8 • 10.3 ?4 « 1.8 • 3.0

05 57 11.0 7.0 » 8.0 •13.0 65 7.0 18.2 • 8.5 •13.0 33 4.0 3.3 • 4.0 • 5.5 24 » 1.0 • 2.8

Oh 56 13.1 8.0 » 5.0 • 7.0 60 6.0 6.0 •11.0 •16.5 33 10.1 2.0 • 5.3 • 7.3 24 2.0 2.0 o 2.3 • 3.8

U/ 54 9.1 10.0 • 10.8 •13.3 63 8.0 7.5 • 6.3 •10.8 57 15.7 22.1 » 4.5 • 10.0 24 2.0 2.0 » 1.5 • 3.5

OS 44 12.7 4.0 52 9.5 11.5 •12.0 •20.0 43 27.5 8.0 • 3.0 • 5.0 24 2.0 2,0 o 1.5 • 3.0

09 44 9.1 4.0 • 6.5 • 9.5 40 14.2 7.1 41 21.3 6.0 • 4.8 • 8.0 24 2.0 2.0 * 2.0 • 3.5

" 42 4.6 4.3 • 38 • 52 • 3.0 • 6.5 24 3.9 2.1 * 2.0 • 3.0

'

' 44 8.6 6.0 37 14.7 5.1 38 16.7 5.1 • 5.5 • 8.0 24 2.0 2.0 * 2.5 • 3.5

12 42 4.0 4.0 « 7.5 •10.0 36 16.3 4.3 • 8.3 •11.0 46 9.0 11.0 • 2.3 » 4.0 24 2.0 2.0 » 2.5 • 4.5

13 42 5.5 4.0 » 7.5 •10.5 38 13.1 7.1 46 8.6 11.1 • 2., 5 • 4.0 24 2.0 2.0 « 3.0 • 4.3

.1 42 9.1 4.0 • 7.8 » 7.8 42 8.0 8.0 • 3.5 • 7.5 47 7.9 14.4 • 3.0 » 6.3 24 2.0 2.0 ft 2.5 • 4.3

b 42 6.0 4.6 • 5.8 • 8.5 50 10.2 8.0 • 4.0 • 8.0 53 8.0 16.0 • 3.3 • 5.3 24 2.0 2.0 3.0 4.5

6 48 9.2 10.2 • 6.8 •10.5 60 6.0 8.2 • 5.0 • 8.5 55 8.8 18.3 4.0 7.0 24 2.3 2.0 2,0 3.5

50 12.7 6.7 •10.5 •15.0 64 6.1 5.9 • 8.5 •13.5 57 8.6 20.3 • 2.5 • 5.5 22 4.0 2.0 » 2.0 • 3.5

54 U.9 8.0 • 6.0 •10.0 65 5.0 9.5 • 8.3 •13.5 53 14.0 18.7 • 7.3 •16.0 22 2.0 2.0 ft 2.0 • 3.8

56 10.2 4.2 •10.0 •13.0 60 6.0 5.0 • 9.0 •13.3 51 10.7 16.7 • 4.5 • 7.3 22 5.5 2.0 a 2.0 3.0

20 56 12.6 6.0 • 7.5 • 9.8 62 6.3 7.7 • 6.0 •10.0 49 16.9 14.9 22 2.0 2.0 « 4.0 • 6.0

l I 56 12.0 4.0 • 5.0 • 8.5 64 4.0 9.5 •12.0 •16.8 40 17.6 7.0 • 5.5 • 9.0 22 2.0 4.0 1.5 3,0

58 10.3 6.6 • 8.3 •10.3 51 7.0 5.0 • 5.5 • 8.5 36 16.7 5.0 • 3.0 • 5.5 ?2 2.0 2.0 o 2.0 • 4,5

60 9.4 6.7 • 8.0 •10.8 54 6.0 4.5 • 7.3 •10.0 33 21.5 4.0 • 1.5 • 3.0 22 2.0 3.7 3 4.5 • 3.5

# Fewer than 15 days data on power measurements and no computations mode for D u ondDy. K Fewer than 7 days data on voltage and logarithmic measurements.

FQ _ = median value of effective antenna noise in db above Mb

D u

= ratio of upper decile to median in db. D^ = ratio of median to lower decile in db. ^dm = median deviation of average voltage in db below mean power. Ld m

= median deviation of average logarithm in db below mean power.
STATION OHIRA, JAPAN MONTH -HOUR VALUES OF RADIO NOISE

LAT. 35.6 N LONG. 1*0.5 E FEBRUARY 1965

HR FREQUENCY (Mc)

k

T

.013 .051 .160 .495

°u °y Vdm L dm Fam Du Dj Vdm L dm Fam D|i D/ Vdm L dm Fam Du °y Vdm L dm

00 156 2.0 2.0 • 10.5 • 16.5 132 4.1 4.0 • 12.0 • 18.0 111 6.0 5.6 • 10.3 • 16.8 86 12.0 4.0 8.5 13.0

01 156 3.6 0.1 •10.8 16.0 132 5.8 4.0 •10.3 •16.3 111 5.6 5.6 • 9.5 •15.0 88 8.9 5.6 • 6.3 •10.3

02 158 1.7 2.1 10.5 15.5 134 2.3 6.0 •11.0 •15.8 111 6.2 6.0 •10.5 •17.0 87 9.1 4.6 » 7.5 •12.0

03 156 4.1 0.1 10.8 15.5 132 7.7 4.0 •12.0 •17.5 109 12.1 5.6 9.0 14.8 86 14.0 4.0 • 9.6 •15.0

04 156 3.2 2.0 •11.5 •16.8 132 5.7 3.7 •11.5 •18.0 107 13.3 5.6 • 8.5 •13.3 84 15.7 4.0 • 8.5 •14.0

05 156 3.7 1.6 • 12.5 •17.5 132 4.0 5.7 •13.5 • 19,5 105 10.0 7.7 • 10.8 • 17.3 80 22.7 5.7 • 8.5 •13.5

06 156 2.2 2.0 11.5 16.5 124 14.1 2.1 •13.5 •19.3 94 25.0 3.1 • 10.5 • 14.0 72 21.3 7.7 • 7.3 • 9.8

07 152 4.1 2.0 10.8 16.5 118 14.3 2.1 12.0 15.5 87 24.0 9.7 • 6.5 • 8.0 70 10.3 8.0

08 153 3.* 1.2 12.5 18.0 110 19.4 8.0 •11.0 •16.5 63 12.7 6.0 70 14.1 4.0

09 154 4.5 2.0 • 14.5 •20.5 110 22.6 5.3 •16.3 •18.8 81 17.0 4.0 • 3.0 • 7,0 68 19.7 8.8 • 3.0 • 8.5

10 156 3.* 4.0 •14,0 •20.5 116 10.0 6.0 •13.0 •21.0 82 14.9 5.0 • 7.8 •11.0 72 15.7 6.0 • 4.0 • 9.0

1 1 154 8.3 3.1 • 13.5 •20.0 116 21.4 6.0 •14.0 •21.0 81 33.9 4.5 • 2.0 • 5.5 70 22.9 5.0 • 6.0 • 8.5

12 154 4.6 2.2 15.0 21.5 116 19.3 4.0 •15.0 •20.5 83 26.5 6.1 • 9.0 •15.3 70 14.3 a.o •13.0 •15.5

13 154 4.3 3.7 14.0 20.5 118 11.6 5.5 •13.5 •19.0 83 20.3 6.0 • 2.3 • 2.8 72 14.3 10.0 •10.3 •16.0

14 154 4.1 2.0 • 13.5 •18.3 118 9.4 3.6 10.3 16.8 83 20.4 6.0 •11.8 •15.3 70 11.5 7.7 •12.0 •15.5

15 156 4.0 2.0 •12.5 18.8 116 12.0 6.0 • 9.5 •15.5 83 17.9 6.0 •12.0 • 16.5 72 9.7 9.6 12.0 •13.8

16 156 2.1 2.1 10.3 15.5 110 18.1 2.0 •12.5 •16.0 83 22.3 6.0 • 8.8 • 9.8 72 14.0 5.9 •11.0 •16.0

17 156 2.1 2.1 9.5 14.5 117 12.4 8.7 •10.0 •14.5 87 17.5 6.0 • 9.5 •13.5 78 14.8 6.0 • 1.5 0.0

18 156 2.1 2.0 9.0 14.0 124 4.1 6.0 •11.0 •16.5 97 17.1 7.6 •10.0 • 15.3 82 15.4 5.6 • 9.0 •13.5

19 158 1.8 2.0 8.8 14.0 128 7.4 4.1 9.0 14.3 101 11.7 8.2 •10.0 •15.0 84 9.6 7.3 • 6.0 • 9.0

20 158 2.1 2.0 11.0 16.0 130 6.1 3.8 8.5 13.5 105 11.4 7.2 • 7.5 •11.5 84 13.3 4.3 • 7.3 •11.3

21 158 0.1 2.4 11.0 16.5 130 6.1 4.1 • 9.5 •14.8 105 11.9 3.7 9.8 14.8 86 11.7 5.8 • 5.8 •10.3

22 158 2.1 3.6 10.0 15.5 130 5.7 2.0 10.5 16.5 107 9.4 3.6 9.5 15.0 87 10.7 3.0 • 9.8 •15.8

23 156 2.0 0.1 10.5 16.0 132 3.6 4.0 11.0 17.0 109 8.1 4.1 10.0 15.5 87 5.1 5.0 • 5.0 • 9.8

H

R. FREQUENCY (Mc)

L

S.

T.

2.5 5 10 20 am °u °J vdm L dm Fom D

u °l vdm L dm Fdm K °l u dm Fom °

U °4 v. L dm

OO 60 11.8 9.7 • 4.0 • 7.0 58 6.0 6.0 • 4.5 • 7.0 37 19.4 5.9 • 5.0 • 7.0 21 2.0 0.1 o 2.0 • 3.5

01 54 22.6 7.3 • S.8 • 9.3 58 5.0 21.5 • 2.5 • 4,8 37 20.7 10.3 o 3.0 • 5.0 21 2.0 0.0 « 2.0 • 3.5

0? 56 9.3 7.3 • 5.5 • 9.0 56 12.0 7.1 • 4,0 * 7.0 38 15.3 6.0 • 7.5 •11.5 23 0.0 2.3 2.0 3.0

03 56 20.3 4.6 70 5.9 6.8 • 8.5 •11.8 35 17.9 5.0 • 3.5 • 5.8 23 0.0 4.0 • 1.8 • 3.0

04 54 16.0 12.0 • 9.5 •13.5 66 10.3 4.6 • 9.5 •13.5 32 4.9 1.7 • 4.5 • 6.5 23 0.0 2.0 • 1.0 • 2.5

OB 53 17.6 6.8 • 7.3 •10.5 65 5.5 8.9 • 5.5 » 8.8 32 2.0 4.0 « 1.0 • 3.0 23 0.0 0.5 l.S 3.0

06 54 16.0 13.5 58 7.1 4.0 •12.0 •16.0 • 33 • 3.6 • 5.8 23 0.0 2.0 1.5 3.0

07 46 16.6 4.0 • 5,0 • 7.8 54 11.0 17.0 •10.5 •15.5 42 23.5 12.0 23 1.1 2.0 • 2.3 • 3.8

06 44 6.0 5.7 • 48 48 22.3 20.0 o 2.5 • 5.8 23 3.1 3.1 « 1.5 • 3.0

42 9.9 3.5 • 7.0 • 9.5 38 6.6 4.0 • 5.3 • 8.0 36 27.7 4.1 • 2.3 • 3.5 • 23 1.3 • 3.0

1 • 40 • 8.5 •12.0 • 35 • 4.3 • 6.8 • 32 23 3.7 2.0 • 2.0 • 4.0

11 • 41 • 6.5 • 6,6 36 15.9 6.0 • 5.0 • 7.5 34 18.3 4.0 • 4.5 • 7.0 23 3.1 1.1 • 1.5 • 3.5

2 42 2.5 6.0 • 7.0 •10.0 34 4.0 4.0 • 4.8 • 7.3 32 « 4.0 • 7.0 25 2.0 2.6 a 2.5 • 4.0

13 42 6.0 2.0 6.3 9.5 34 12.9 4.0 • 5.0 • 7.0 32 16.3 8.0 • 2.3 • 4.8 24 3.0 3.0 2.5 4.5

14 42 4.0 4.0 • 5.0 » 7.5 36 14.2 4.2 48 6.6 13.9 • 2.0 • 4.5 23 2.3 2.3 2.0 3.5

15 42 6.9 6.0 • 5.0 • 7.0 44 10.4 10.0 • 2.0 • 4.0 50 10.0 22.2 • 4.3 • 8.0 23 2.0 2.0 2.0 4.0

16 42 11.0 7.5 • 5.3 • 7.5 • 55 * 6.0 • 9.5 58 4.3 26.3 • 5.8 • 10.3 23 2.0 2.0 • l.S • 3.3

17 46 14.9 5.7 • 5.0 • 7.8 60 10.0 13.1 • 6.5 •12.0 58 8.9 21.5 # 2.3 • 5.8 23 0.0 2.0 • 1.5 • 3.3

18 50 14.6 5.3 • 8.5 •12.3 62 8.7 5.4 • 7.5 •10.8 46 22.0 15.0 • 3.5 • 7.0 21 2.5 0.0 4 0.5 • 2.0

19 56 18.4 3.7 • 5.5 • 8,5 63 3.9 12.5 • 6.0 •10.5 48 15.8 12.9 4.0 9.0 21 2.0 0.0 • 1.5 • 3.3

20 59 8.0 8.9 • 8.5 •13.0 66 2.7 8.0 • 7.3 •10.5 38 25.2 9.6 a 9.0 • 12.0 21 2.0 2.0 l.S 3.0

?l 60 9.5 9.5 • 5.0 • 9.5 66 6.0 12.1 •11.0 •17.5 44 15.5 11.0 • 8.8 • 14.5 21 2.0 0.2 • 0,5 • 2.5

?? 63 9.2 7.1 • 11.5 • 16.5 56 4.1 4.6 * 5.8 • 8.0 40 12.4 8.1 • S>.5 » 9.0 21 0.1 1.7 a l.S 3.0

2 3 62 8.0 17.2 • 7.0 • 11.0 56 6.0 4.0 • 3.5 . 5.5 40 12.0 10.0 • 2.8 • 5.3 21 2.0 2.0 1.3 3.0

» Fewer than 15 days data on power measurements and no computations made for D u andD/. S Fewer than 7 days data on voltoge and logarithmic measurements.

FQm = median value of effective antenna noise in db above ktb. D u

= ratio of upper decile to median in db. 0/ = ratio of median to lower decile in db. Vj rn = median deviation of average voltage in db below mean power.

L(j m

• median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION PRETORIA, S. AFR. LAT. 25.8 S LONG. 28.3 E OECEMBER 196*

H

R FREQUENCY (Mc)

k

T.

.013 .051 .160 .495

°u D/ Vdm L dm Fam °u °1 Vd m L dm Fam Du 9* Vdm L dm Fom Du Dy Vdm '-dm •163 •139 •115 •100 •162 • 137 •113 • 98

1 •162 •137 •114 • 98

03 •163 • 137 •114 • 96

-'4 •161 • 135 •110 • 90

05 •159 • 130 • 98 • 65

06 •158 • 129 • 94 • 69

07 •157 • 127 • 94 • 61

38 •159 • 126 • 95 • 63

09 •161 • 129 » 96 • 62

10 •158

• 159

• 128 •133

• 98 •no

• 70

• B6

12 •165 • 140 •116 • 96

13 •169 •143 •120 •100

4 •171 •145 •124 •104

IS •171 • 147 •122 •102

16 •171 •145 •124 •104

17 •171 •145 •126 •106

B • 169 • 142 •122 • 98

19 •165 • 143 •122 •104

20 •169 • 147 •124 •103

21 • 167 • 144 • 122 • 104

22 • 167 • 143 • 120 •102

23 •165 • 140 •116 •102

H

R. FREQUENCY (Mc)

L

S.

T.

2.5 5 10 20

Fam °u °J vd m

L dm am D

u °J vdm L dm Fa m

Du °/ vdm L dm Fam % °J V

d"> L dm

00 • 76 » 67 ft 45 • ?6

• 76 » 67 • 47 • 25

02 • 66 • 65 » 46 • ?5

7 • 70 » 65 » 44 • 25

4 • 75 • 66 • 40 • 26

5 • 70 » 70 ft 46 • ?5

06 • 68 • 57 • 44 • ?7

7 • 62 • 60 ft 42 • 27

08 • 50 » 46 • 36' • ?5

09 ft 46 e 46 • 37 • 77

10

1 1

ft 48

» 50

ft Itl, « 46

• 40

• 43

« 27

• ->9

12 • 51 • 50 • 44 • 32

13 • 58 ft 54 • 48 • 33

14 • 67 ft 56 ft 50 • 34

15 • 64 « 58 • 53 • 33

16 • 72 • 62 * 54 • 35

17 • 73 ft 66 ,• 56 • 33

18 « 73 • 72 • 57 • 32

19 • 76 • 72 • 56 • 30

20 • 79 o 74 ft 56 • 32

21 » 82 » 72 • 54 • 29

22 • 80 • 72 * 53 • ?7

23 • 78 « 70 • 44 • 27

ft Fewer than 15 days doto on power measurements ond no computation "Fewer than 7 days data on voltoge and logarithmic measurements.

F am = medion value o( effective antenna noise in db above Mb.

D u

- ratio of upper decile to median in db. D/ = ratio of medion to lower decile in db.

V(j m

= median deviation of overage voltage in db below mean power.

. ,j rr

, i r edian deviation of overage logarithm in db below mean power

made for O u ondD^.
MONTH -HOUR VALUES OF RADIO NOISE

STATION PRETORIA. S. AFR. LAT. 25.8 S LONG. 28.3 E

H

R FREQUENCY (Mc)

T

.013 .051 .160 .495

Fam °u Dy Vdm L dm Fam °u °J vdm L dm ^am Du °* Vdm L dm 'bm Du Dy Vdm L dm

00 160 5.1 15.5 138 4.2 15.8 120 4.0 7.9 100 6.0 4.0

160 4.9 4.5 136 7.9 7.1 118 8.7 4.0 100 6.9 4.0

159 4.2 4.7 136 6.6 6.8 116 8.8 4.2 98 8.4 2.0

(J) 157 5.9 3.9 135 7.4 8.9 116 10.8 6.0 98 10.6 5.9

04 156 5.2 4.9 134 4.2 16.7 114 9.9 6.0 96 9.9 6.3

OS 155 4.2 19.3 128 8.0 12.8 104 16.2 13.6 88 10.6 20.6

Ob 152 3.2 18.2 126 2.6 8.8 97 16.7 18.9 • 68

07 151 5.9 8.9 126 4.3 16.6 97 16.3 19.2 • 74

08 •155 •126 • 94 • 72

09 •151 •122 • 92 # 76

10

1 1 • 155

153 8.0 8.0

• 123

130 8.3 12.3

• 97 •104

• 84

• 84

12 •159 •136 •116 • 89

13 •163 • 140 »122 • 98

4 •165 • 144 •126 • 96

lb • 165 • 143 •126 • 97

16 •169 • 146 •128 •100

17 • 167 • 144 •128 • 106

IB •166 • 144 •127 •102

19 •163 142 10.0 4.0 •123 •100

20 •163 •142 •122 102 14.0 6.3

21 163 8.3 2.3 • 140 124 12.3 6.6 • 104

22 163 15.4 4.0 140 4.6 6.0 124 6.0 8.3 102 32.3 4.3

23 161 4.0 2.0 140 2.3 8.0 120 6.0 4.6 104 4.3 8.0

H

R. FREQUENCY (Mc)

L

S.

T. 2.5 5 10 20 am °u °7 vdm L dm am D

u. °y vdm L dm am Du °y vdm L dm Fam % "y vdm L dm

00 74 4.1 7.8 61 4.1 5.7 44 4.0 6.3 21 1.9 3.9

01 72 6.6 4.4 61 4.3 5.9 42 6.1 5.7 ?o 5.1 2.9

02 72 4.8 4.3 59 5.7 2.1 39 11.8 5.0 21 2.0 3.9

O 1 70 8.0 4.2 59 4.1 5.7 40 8.1 7.9 21 2.5 2.0

04 70 8.5 6.0 57 8.1 2.2 36 8.0 4.0 21 2.0 2.0

05 68 7.7 11.5 57 4.0 4.0 38 11.9 4.0 ?1 5.7 4.0

06 56 13.8 8.4 51 6.1 7.7 42 4.0 S.9 71 2.0 4.0

07 48 12.3 4.3 45 10.1 7.9 38 6.1 4.0 21 2.0 4.1

08 46 7.8 5.8 39 10.8 4.0 38' 6.0 6.0 20 3.0 3.0

09 • 4* • 36 35 5.0 4.6 21 2.1 3.7

10 44 7.5 2.0 37 4.9 6.9 34 4.0 3.5 23 13.1 4.0

1

1

46 17.4 4.5 39 8.6 10.0 36 6.3 6.3 27 26.8 8.0

12 54 17.1 10.0 43 8.0 10.0 38 6.7 2.7 28 24.8 5.9

13 58 16.0 12.9 47 14.2 13.1 42 9.1 3.1 29 10.4 6.0

14 68 10.0 22.0 53 15.0 13.0 46 10.0 4.0 ?7 11.0 3.5

IS 68 14.0 18.4 55 13.5 14.0 50 6.0 6.0 29 13.0 5.'6

16 73 10.3 18.7 61 6.1 8.3 52 3.5 4.0 29 4.3 4.0

17 72 6.1 9.9 61 6.0 4.0 53 2.9 3.0 32 3.4 7.3

IS 76 6.0 8.0 65 7.3 4.0 52 4.0 2.0 ?9 5.1 5.1

(9 78 6.0 4.7 67 4.3 4.3 52 4.9 2.0 26 7.5 5.0

20 78 6.0 4.5 67 9.7 4.0 50 8.3 2.0 23 6.3 2.0

21 76 5.9 5.7 65 6.0 6.0 48 6.0 2.1 21 4.8 2.1

Li 75 5.0 6.0 63 7.7 6.1 44 10.7 2.7 21 4.7 4.7

11 74 6.6 6.0 61 8.0 3.9 42 6.3 4.3 19 4.0 0.0

a Fewer than 15 days data on power measurements, and no computations made for OyOndD^.

ft Fewer than 7 days data on voltage and logarithmic measurements.

Fom = median value of effective antenna noise in db above Mb.

D u= ratio of upper decile to median in db. Oy = ratio of median to lower decile in db. V^ = median deviation of average voltage in db below mean power. t-dm = median deviation of average logonthm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION PRETORIA, s. AFR. LAT. 25.8 S LONG. 28.3 E FEBRUARY 1965

HR FREQUENCY (Mc)

T

.013 .051 .160 .495

°u °/ Vdm u dm bm Du °4 Vdm. L dm Fom Du 0/ vdm L dm Fam D„ 0/ Vdm L dm

00 •158 •138 •120 • lno

U 1 •157 • 138 •116 • P8

02 •156 • 136 • 116 • 98

03 •156 • 136 •114 • 96

4 •155 • 132 •112 • 94

05 "155 • 130 •104 • 78

Ob • 153 • 126 • 90 • 60

7 •151 • 122 • 94 • 60

>e •152 • 12* • 91 • 60

09 •150 • 122 • 93 • 60

10

1 1 •152

•151

• 118 •124

» 88

• 90

• 60

• 60

12 •154 •130 • 100 • 68

13 •158 •136 •112 • H8

14 "162 • 142 •122 • 97

I 5 •165 • 142 •118 • 98

16 •164 •140 • 120 •101

17 •165 • 138 •120 • 98

IS • 165 • 138 •118 • 96

19 •163 • 138 •118 • 100

20 • 160 • 140 •120 •104

21 •160 • 138 •120 • 104

22 "159 • 138 •118 • 102

23 • 160 • 138 • 120 • 103

H

R. FREQUENCY (Mc)

L

S.

T.

2.5 5 10 20 dm Du °J vdm L dm am Du. °4 vdm L dm dm D

u °t vdm L dm Fom % °J v(*» u dm

00 69 8.1 6.0 55 10.1 4.0 42 4.2 6.1 21 7.4 4.0

01 68 8.7 6.6 57 3.9 6.4 42 2.1 5.6 21 2.1 3.7

02 69 6.2 6.1 56 3.0 6.8 38 7.8 5.7 21 5.6 5.6

i 69 6.1 fi.l 55 5.9 6.0 36 6.1 5.6 21 3.7 2.0

04 69 5.6 7.6 55 5.7 6.3 33 8.7 3.1 20 3.2 3.0

05 67 5.7 6.1 55 3.9 9.6 34 5.7 4.0 19 5.7 2.0

06 55 9.7 5.7 51 6.4 10.1 39 3.1 4.6 19 5.6 2.0

07 45 10.4 4.1 42 9.3 9.0 37 5.2 3.2 20 3.4 3.0

oe 43 10.0 4.9 37 13.0 8.0 35 10.8 5.9 21 5.9 3.6

09 39 7.5 4.3 33 15.5 8.0 30 8.9 6.0 ?1 6.5 2.0

41 2.3 6.0 29 8.9 4.5 30 8.5 8.5 23 8.0 4.5 " 41 8.0 2.3 29 13.8 4.0 30 10.8 6.0 27 12.3 6.3

12 43 8.6 4.0 29 14.3 2.2 34 8.0 6.2 35 10. 12.3

13 47 20.3 6.1 37 16.9 10.0 38 6.3 4.0 27 10. 4.0

4 57 25.6 17.9 47 21.7 13.9 42 10.0 16.8 29 11.1 4.3

5 61 27.3 1B.0 50 20.4 15.0 45 14.4 7.5 31 14.0 6.2

16 65 22.0 19.9 55 19.2 15.7 48 10.3 5.7 31 11.7 7.7

r 69 11.9 16.0 57 6.3 13.6 48 6.1 4.0 31 7.7 6.0

e 71 6.1 9.7 57 8.0 8.3 48 4.2 3.9 ?y 8.1 4.2

19 73 10.0 4.3 60 8.0 8.0 48 6.1 3.9 25 5.1 4.3

20 73 6.3 6.0 59 8.6 8.3 46 10.6 2.3 21 16.6 4.0

2 1 71 6.3 4.1 58 13.2 7.1 44 15.6 4.0 21 29.0 4.0

2? 70 10.4 5.0 57 17.2 5.7 44 16.2 4.1 21 18.3 4.0

2 J 69 9.7 4.1 55 7.7 3.6 42 5.7 6.0 21 7.6 3.7

*f Fewer than 15 days data on power measurements and no computations made for Du andD^. W Fewer than 7 days data on voltage and logarithmic measurements.

F Qm = median value of effective antenno noise in db obove ktb. D u

= ratio of upper decile to median in db. Dy = ratio of median to lower decile in db.

V,j m = median deviation of overage voltage in db below mean power. Ld m

= median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION SAO JOSE, 8RAZIL LAT. 23.3 S LONG. 45.8 w DECEMBER 1964

H

R FREQUENCY (Mc)

k

T.

.051 .113 .246 .545

F

QfT> Du °/ Vdm Ldm Fom °u D/ Vdm L dm Fam Du V Vdm L dm Fom Du Dy Vdm L dm

00 139 6.3 8.3 6.3 9.8 120 8.1 6.3 6.0 9.5 106 5. 1 8.0 7.0 10.8 91 6.3 6.0 4.0 7.0

01 13* 8,0 7.1 8.0 11.5 118 10.0 5.9 • 5.3 • 8.8 104 6.1 6.1 • 5.0 • 8.0 9) 6.1 6.1 • 4.5 • 7.5

02 138 8.0 8.0 6.3 11.3 118 8.9 7.5 5.0 10.0 102 7.9 6.1 5,0 8,8 89 8.0 5.7 • 4,3 • 7.8

03 13b 10.0 8.0 6,8 11,8 116 10,0 5.7 6.5 11.0 100 8.1 5,7 5.5 9.3 87 7.9 6.1 5.0 8.0

04 136 9.1 6,0 7.0 11.8 116 8.9 7.7 * 6.0 •10.8 98 10.0 4,1 6.0 10.8 R7 7.5 8.1 • 4.8 • 8.B

05 132 8.0 8.0 • 8.5 • 13.5 104 8.0 9.5 •11.0 • 16.0 78 13.9 3.7 • 8.0 • 12.0 84 5.2 13.0 • 7.5 •13.0

OS 128 8.0 9,3 8.0 13.0 98 11.8 6.1 o 9.5 • 15.0 78 7.5 4.0 » 7,0 • 9.5 85 9.7 13.2 • 8.0 • 12.5

07 123 9.0 6.3 7.3 12.0 100 13.4 7.9 8.5 13.0 78 10.0 3.7 • 8.0 •11.0 91 4,3 7.6 • 6.8 •12.0

OB 124 8,0 6.0 7.8 12.0 98 8.0 9.0 • 7.5 •12.5 78 6.3 4.3 • 6.0 •11.5 89 4,0 8.3 • 5.3 • 8.8

09 124 10.0 5.9 9.5 13.8 100 7.5 11.1 » 9.8 •14.8 78 5.3 5.3 • 8.5 12.0 R7 6.0 8.2 • 4.5 • 7.5

128 9.' 8.1 9.0 10.5 102 12.6 8.0 • 9.0 •14.5 80 11.7 6,0 • 8.3 • 11.8 91 *.3 2.3 • 4.5 » 7.0

I 131 9.4 7.0 8.5 15.0 106 16,0 8,0 • 9.8 •15.0 84 18.7 8.7 • 13.5 • 21.5 91 10.5 4.5 • 8.8 •15.3

12 136 10.2 12.2 8.3 1H.3 114 21.1 20.0 •13.0 • ?0.5 91 28.0 17.5 •13.8 • 22.3 93 17.3 8.0 •10.0 • 16.0

13 140 10.2 13.6 8.8 13.8 120 12.7 19.4 • 14.8 • 20.8 94 31.* 17.9 • 14.5 • 23.0 93 17.0 6.7 • 5,8 • 11.8

14 142 12.1 15.6 9.5 14.5 122 16.5 26,0 11.0 18,0 103 19.9 29.9 • 13.8 • 20.0 93 17.9 5.9 • 10.0 • 15.5

15 142 13.

13,0 9.0 12.0 123 14.9 24.7 10.5 16.5 104 18.7 30.7 • 12.5 •21.0 95 12.6 10.9 •10,0 • 15.5

16 144 8.0 13.9 9.0 14.5 122 12.0 20.0 •10.0 •15.5 102 16.3 2*.* •11.5 • 18.0 91 13.9 8.1 • 6.5 •10.8

17 144 b.O 13.3 9.0 15.0 123 11.3 19,4 •11.0 • 18.5 104 12.6 25,2 •11.5 • 17.5 89 12.2 8.0 • 8.0 •13.5

18 143 5.0 14.3 « 8.5 • 14,0 122 8.7 22.0 • 12.8 • 20.3 100 12.8 15. R • 10.0 • 18.3 91 11.7 10.1 7.0 11,0

19 1*2 5.1 10,0 7.5 12.5 122 7.9 13.8 • 8.0 •12.3 106 8.2 15.5 • 8.3 • 14.8 93 4.1 8.1 5.5 9.5

20 142 3.1 10.2 6.5 11.0 122 6.0 8.4 7.0 11.5 106 6.1 11.7 7.0 14.5 9b *.0 8.0 4.8 9.8

21 140 5.1 5.1 6.5 10.8 122 6.0 8.1 5.0 8.0 106 6.1 8.1 6.8 11.0 93 4.0 7.7 4,5 7.5

22 140 6.0 6.0 5.3 9.3 120 8.0 6.1 • 5.3 o 8.8 108 4,0 8.1 9.5 15.5 93 5.7 7.9 • 3.5 • 6.0

23 140 6.0 7.1 7.0 11.

122 6.1 8.1 4,5 8.5 106 6.0 7.7 • 7.5 • 14.0 91 6.1 5.7 • 5.5 » 9.3

H

R. FREQUENCY (Mc) L

S

T.

2.5 5 10 20 am °u °y Vdm L dm Fom <Y °/ vdm L dm om °u ^ vdm L dm Fom °0 <>J V(*n Ldm

00 68 5.3 9.3 6.0 11.0 61 6.0 9.8 6.0 10.0 45 6.0 4.0 6.0 10.0 25 5.3 2.0 • 3.0 • 5.3

01 67 6.3 10.3 6.0 11.3 59 5.3 9.8 5.8 10.0 43 9.3 6.0 6.0 9.5 ?5 6.0 2.0 2/3 4.0

2 66 7.3 9.3 7.0 12.0 57 6.0 7.3 5.0 9.8 43 9.3 8.0 b.5 8.0 ?5 3.3 2.0 » 1.8 • 3.5

5 66 7.3 8.0 6.0 10. b 57 6.0 B.O 6.0 10,8 4.1 '.3 9.3 5.5 9.5 ?5 3.3 2.0 2.0 4.0

04 66 7.5 11.0 a.o 14.0 57 6.0 10.0 7.0 12.0 43 6.0 8.0 4.0 6.5 25 2.0 2.0 1.5 3,5

1 62 8.0 12.0 7,b 12.5 59 6.1 13.8 6.0 11.5 4b 4.0 11.5 5.5 8.0 25 4.0 2.0 • 1.8 • 3.5

OG 54 6.0 9.S 6.0 11.0 55 2.0 15.0 • 5.8 •10.3 45 4.0 8.0 4.0 6.5 25 3.5 0.0 2.0 4.0

7 44 8.0 8.0 • 6.0 • 11.0 47 5.5 10.0 • 6.0 • 11.0 41 6.0 8.0 5.3 8,8 ?7 1.3 2.0 • 3.0 • 5.3

8 38 6.0 9.5 • 7.8 •12.3 43 5.9 10.1 5.0 10.0 37 4.0 10.4 7.5 12.5 27 4.1 2.1 • 2.8 • 5.3

09 36 12.0 6.3 6.5 8.5 37 4.0 6.7 » 5.0 •10.5 33 8.9 6.6 • 6.5 • 10.0 ?6 5,0 1.0 2.8 5.3

10 36 11.2 5.3 • 6.0 » 8.8 3b 6.1 5.9 • 6.5 • 9.8 37 4.0 8.2 • 7.5 • 11.

27 6.1 2.0 • 2.8 • 4,5

1 39 11.1 5.2 • 10.5 • lb.O 35 8.2 8.0 • 9.0 • 14.0 37 4.2 6.6 6.5 10.3 29 3.9 *.o 3.0 5,5

2 38 22.0 9.6 • 9.8 •15.3 37 13.5 7.5 • 7.0 •11.5 39 6.0 11.3 7.0 11.5 ?7 6.6 2.0 • 3.0 • 5.5

13 44 32.0 10.1 o 6.5 • 9.3 42 11.9 11.5 • 7.0 •12.0 42 7.9 13.5 • 5.8 • 8.5 ?7 13.3 2.0 • 3.5 • 5.0

4 46 31.7 12.8 7.0 11.0 43 22.3 18.0 6.5 10.5 43 8.3 14.0 • 7.0 • 11.0 29 12.6 2.3 4.0 6.0

5 52 24,0 22.0 • 7.0 • 12.0 47 13.9 16.2 • 5.5 • 9.0 47 6.9 J4.9 4.8 7.5 31 8.7 *.0 4.5 6.8

6 52 22,3 13.1 • 8.5 •14.5 51 11.0 11.0 • 5.3 • 9.0 48 5.0 10.8 5.0 8.5 33 7.7 5.9 • 3.0 • 5.5

7 58 13.5 14.1 6.3 11.5 59 6.3 14.4 • 5.8 • 9.0 51 3.5 10.4 b.3 8.5 33 7.7 3.7 • 4,0 • 6.5

IS 66 6.0 18.4 6.8 11.3 61 3.5 7.0 6.0 8 .5 49 4.0 7.0 5.0 8.5 31 9.3 *,0 3.5 5.8

19 72 2.0 15.3 4.8 8.8 63 2.0 11.8 3.5 7.0 49 4.0 5.3 4.8 8.0 27 10,0 3.3 3.0 5.0

2 70 4.0 10.6 5.5 9.0 63 4.0 7.0 4.3 7.5 47 6.0 4.0 4.0 8.0 27 7.3 2.0 3.0 5.5

21 70 4.0 10.6 5.5 10.0 62 5.0 7.6 • 6.0 • 10.5 47 5.3 6,n 5.0 8.5 25 6.0 2.0 2.5 4.5

22 68 6.0 10.6 5.5 10.0 61 6.6 7.3 • 4,b • 8.5 45 8.0 3.3 5.5 9.5 ?s 5.8 2.0 2.5 4.5

2 3 68 4.0 10.6 6.0 11.0 63 5.3 10.0 • 6.0 • 10.0 45 6.0 4.0 5.0 8.5 25 4.0 2.C 2.5 4.0

<f Fewer than 15 days data on power measurements and no compulations made for DyOndD/. $ Fewer than 7 days data on voltage and logarithmic measurements.

F Qm = median value of effective antenna noise in db obove ktb. D u

= ratio of upper decile to median in db. 0_/ = ratio of median to lower decile in db.

V,j m

= median deviation of averoge voltage in db below mean power. L {j m

= median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION SAO JOSE. BHAZIL LAT. 23.3 S LONG. 45.8 W

H

R FREQUENCY (Mc)

k

T

.051 .113 .246 .545

°u <V Vdm L dm Fam Du Oj Vdm L dm Fam °u °/ Vdm L dm Fom °u 0/ Vdm L dm

00 139 2.0 8.0 9.0 15.0 119 4.5 5.5 7.5 13.3 106 5.1 7.1 10.5 17,

s" 90 3.5 8,0 6.5 U.5

01 137 4.0 a.o 9.5 15.5 119 5.1 6.5 U.5 17.0 104 6.0 6.0 11.0 16.0 88 4.0 7.1 • 5.5 • 10.8

02 135 6.0 8.2 11.0 17.0 117 8.0 7.1 10.5 16.5 104 4.0 8.0 11.5 17.0 R8 4.0 4.0 6.3 11.3

03 135 6.0 7.1 11.5 17.0 117 6.0 6.6 11.0 17.0 102 6.0 7.1 10.8 17.3 86 5.1 4.0 8.0 13.5

04 135 6.0 9.2 lo.

17.3 116 6.1 9.2 10.8 17.5 102 4.0 9.1 10.0 18.0 86 4.0 8,6 • 7.5 •12.5

5 133 5.1 14.0 12.3 17.8 111 6.0 15.

11.3 17.0 88 6.2 10.0 «12.5 • 19.5 84 6.0 8.0 » 6.0 • 13.0

06 125 8.2 8.0 11.0 16.5 99 12.0 8.0 13.5 18.5 80 12.0 3.1 10.5 14.0 86 4.0 10.0 » 5.8 • 11.0

0? 123 10.0 7.3 12.5 17.0 101 10.0 12.0 • 12.0 • 18.0 80 13.1 3.1 11.0 15.5 90 3.1 9.1 • 5.5 • 10.0

08 123 10.0 9.0 8.0 12.5 99 11.8 8.1 •12.5 •19.5 79 13.5 3.0 •10,0 "15.5 86 5.5 10,5

09 123 8.0 9.0 7.5 11.5 100 14.7 8.6 •10.5 •15.3 82 15.4 5.7 »11. 5 • 16.0 88 2.0 8.0 • 6.5 •11.5

10 123 10.1 6.1 9.0 12.5 103 12.4 10.0 11.3 16.3 84 18.3 8,o|» 8.8 • 12.5 88 5.0 6.6 « 6.3 •10.5

'

' 129 12.0 10.0 12.3 17.

103 22.5 7.4 •13.5 "20.0 88 18.6 6.3 •13.3 • 18.0 88 6.1 10.0 • 5.0 •10.0

2 133 U.5 11.0 11.5 16.5 111 18.0 9.1 12.0 17.5 96 23.9 16.0 • 8.0 •12.0 92 15.5 12.0 • 8.0 •12.0

3 137 11.0 10.0 11.0 14.5 121 8.3 16.6 O13.0 •20.0 106 18.0 22.7 •12.0 •16.0 92 17.9 8.6 • 6.0 •12.0

4 141 10.? 10.7 • 10.0 •15.0 123 14.7 14.7 11.5 16.0 110 16.3 26.0 11.0 15.0 93 18.7 11.2 » 7.5 •13.0

15 1*2 12.3 9.0 11.3 17.5 123 16.0 14,0 •11.5 •17.5 114 11.3 27.3 11.3 17.3 95 14.3 8.3 » 6.5 •12.0

16 144 6.8 9.9 10.5 16.0 127 12.3 18.3 • 7.8 •11.3 113 13.0 27.5 »10.5 • 14.0 92 14.1 15.5 • 6.5 •11.5

17 1*3 6.0 10,0 12.5 18.0 124 8.5 13.5 11.5 17.0 108 11.3 20.0 11.3 17.3 S9 13.8 10.8 • 6.5 •11.0

e 141 6.0 10,0 13.0 18.

121 10,0 12.0 10.3 17.0 104 11. J 11.3 11.0 17.5 90 9.1 8.2 6.5 12.0

9 141 9.1 11.1 9.5 15.0 123 9.3 11.3 9.0 15.0 108 7.3 9.3 8 .3 14.8 92 4.0 10.0 7.0 12.0

20 139 6.0 10.0 11.0 17.0 121 7.1 9.1 9.8 15.8 106 8.0 8.0 9.0 16.5 90 5.5 6.2 6.5 10.5

21 139 4.0 8.0 io.s 16.5 122 5.0 9.0 9.0 15.3 108 6.0 9.3 9.0 16.5 92 4.0 10.2 • 7.5 • 12.3

22 139 5.1 7.1 9.5 16.0 122 5.0 10.1 8.5 15.0 108 6,0 8.0 9.0 17.0 90 4.5 9.2 6.0 10.8

23 137 6.0 4.0 10.5 17.5 121 4.0 9.1 9.0 15.5 106 6.0 7.1 10.5 16.8 90 4.0 10.2 6.5 12.0

H

R FREQUENCY (Mc)

L

S

T. 2.5 5 10 20 am °u °J vdm Ldm am Du °4 vdm L dm am Du °* Vdm L dm Fam D

U °J V L dm

71 7.1 5.1 6.5 10.0 61 9.1 13.1 • 4.5 • 7.8 41 10.0 7.1 4.5 8.0 25 5.3 2.0 2.0 4.0

01 71 6.0 6.0 6.0 8.5 51 17.1 9.1 5.5 8.5 39 11.1 6.0 5.5 a.

?5 5.3 2.0 2.3 4.3

02 69 7.1 4.0 6.0 10.0 55 12.0 13.3 5.8 9.0 39 10.0 6.0 6.3 10.0 25 4.0 2.0 2.0 3.5

O! 69 7.1 5.1 6.5 11.5 53 13.1 12.0 5.5 10.0 37 10.0 4.0 *.5 7.0 25 3.3 2.0 • 2.0 • 3.3

04 69 8.0 6.0 7.0 10.8 51 16.0 10.0 6.0 10.0 37 10.0 4.0 6.0 9.0 25 2.0 2.0 2.0 3.8

05 67 8.0 9.1 7.0 U.5 55 10.0 15.3 6.5 U.O 39 9.1 6.0 6.0 9.0 ?5 5.3 2.0 2.0 3.5

06 59 8.0 8.0 5.5 9.0 51 12.0 12.0 • 6.0 •10.0 39 9.1 4.0 5.0 7.5 ?6 7.6 1.0 • 2.8 • 4.5

07 51 8.0 6.0 6,8 10.0 45 12.2 12.0 • 5.5 • 9.5 39 8.2 8.0 5.5 7.8 ?7 8.6 2.0 • 2.0 • 4.0

08 47 8.4 6.0 • 6.5 • 9,3 39 11.9 7.9 • 5.3 • 8,3 35 *.3 6.0 • 6.5 • 12.0 27 2.6 2.0 2.5 4.5

09 45 10.5 6.5 • 2.5 • 4,0 41 4.0 9.9 • 5.5 •10.5 33 5.5 7.5 • 7.8 • U.5 ?5 5.7 2.0 3.0 5.0

10 43 9.5 4.0 • 5.8 • 8.3 37 6.0 7.5 • 6.0 • 8.8 31 a.u 7.9 • 7.5 • U.5 25 4.9 2.0 • 3.5 • 5.8

1 1 48 8.0 9.0 • 12.5 • 15.5 36 10.4 9.0 • 8.5 • 14.3 33 7.7 6.0 • 7,0 • 12.0 25 12.2 2.0 • 4.3 • 7.0

12 49 25.0 13.5 •11.0 •14.5 39 19.6 9.7 • 9.0 •13.0 35 10.0 7.5 • 5.3 • 8.8 27 26.7 4.0 • 3,8 • 4.8

13 55 24.0 17.5 • 12.3 • 18.0 41 17.9 8.3 • 7.0 U.5 39 11.7 6.0 • 7.0 • 10.3 29 17.9 3.9 • 4.0 • 7.5

14 59 23.4 13.4 45 19.4 10.7 • 12.8 • 17.0 40 7.0 6.9 • 6.8 • 10.0 ?9 14,0 4.0 • 5.8 « 8,0

5 63 21.5 21.5 • 8.3 • 14.0 51 IS.

13.7 • 9.6 • 14.0 45 6.0 10.6 • 7.3 • U.O 33 9.1 6.0 • 5.0 • 7.0

16 70 11.9 21.6 53 16.6 8.3 • 5.8 • 9.3 47 6.4 8.0 5.5 a.o 33 7.7 6.0 • 8.8 •14.0

17 69 12.6 13.3 • 6.5 • 11.5 58 10.7 8.6 6,0 9.3 47 7.3 6.0 5.0 8.5 13 6,0 4.0 • 4.5 • 6.5

IB 73 8.6 10.0 8.5 13.0 62 8.3 u.o • 4.5 • 7.5 46 5.8 5.5 5.0 8.0 31 7.3 2.0 5.0 7.0

19 75 8.0 6.0 5.5 11.0 62 9.0 12.3 » 5.5 • 8.0 45 8.0 6.0 5.0 a.o 29 6,0 5.5 4.3 6.0

20 77 6.0 8.0 5.5 9.8 67 7.1 14.0 5.U 7.5 45 7.1 6.0 5.0 7.5 27 9.3 4.0 3.0 5.3

21 77 4.0 10. 5.8 10.0 61 12.0 10.0 • 5.0 • 8,5 43 9.5 6.0 5.3 8.0 27 5.3 4.0 3.8 5.5

22 73 7.1 5.1 6.0 9.5 61 11.3 12.0 • 4.0 • 7,0 41 10,0 7.1 5.0 8.0 25 5.3 2.0 2.5 4.0

23 73 6.0 6.0 • 7,5 • 12.0 59 13.1 8.0 5.0 8.5 41 1O.0 8.0 5.0 8.5 •25 2.0 2.0 2.0 4.0

# Fewer than 15 days data on power measurements and no computations made for Du andD/. w Fewer than 7 days data on voltage and logarithmic measurements.

FQrn

= median volue of effective antenna noise in db above ktb. O u

= ratio of upper decile to median in db. D/ = ratio of median to lower decile in db.

V(j m

= median deviation of average voltage in db below mean power.

L{j m

= median deviation of average logarithm in db below mean power.
MONTH -HOUR VALUES OF RADIO NOISE

STATION SAO -JOSE, BRAZIL |_AT. 23.3 S LONG. 45.8 w FEBRUARY 1965

H

R FREQUENCY Mc)

k

T.

.051 .113 .246 .545

Fam °u <V Vdm L dm Fam °g 0/ Vdm L dm Fom D„ <V Vdm <-dm 'bra Du 0/ Vdm L dm

00 138 *.l 5.7 8.0 13.0 118 5.6 *.o 6.0 12.0 110 5.7 4.0 5.5 11.0 89 4.1 2.1 • 5.0 • 9.0

01 138 *.l 5.6 8.5 15.0 119 3.1 5.1 7.0 12.5 108 6.0 3.6 6.0 11.3 89 4.0 4.0 5.0 9.0

0? 138 *.l 5.8 8.5 15.0 118 4.1 4.1 6.8 12.8 108 6.1 4.1 5.5 11.0 87 6.0 4.1 4.5 8.8

03 137 5.0 5.1 8.8 15.3 117 5.1 5.0 6.0 11.8 107 5.1 5.1 7.0 13.5 87 4.1 5.7 5.5 11.5

04 137 5.0 8.3 7.8 15.0 116 5.6 4.1 7.5 14,0 106 5.7 7.7 5.5 11.0 87 5.6 4.1 4.0 7.5

05 136 5.7 7.5 10.0 16.0 114 6.1 10.0 • 7.8 •14.3 98 11.5 9.9 • 6.0 • 12.5 83 4.0 10.1 • 6.5 •10.0

06 130 3.7 5.9 • 9.8 • 16.3 98 9.9 6.3 • 8.0 •13.3 82 7.7 3.9 6.0 11.0 B3 7.9 12.5 • 5.0 • 9.0

07 128 *.3 9.1 9.3 16.0 100 7.9 7.9 • 9.3 • 14,8 82 6.0 2.0 • 5,3 • 8.8 84 3.5 11.5 • 5.0 •10.3

08 126 4.5 6.0 • 9.5 •15.5 100 8.5 6.5 • 8.0 •13,0 82 7.4 2.5 • 5.5 •11.0 83 4.5 10.0 • 5.3 •11.5

9 128 6.0 5.2 9.0 15.0 100 4.6 10.3 • 8.0 •13.0 82 8.0 4.0 • 3.5 • 7.0 85 5.3 8.6 • 5.3 •11.0

10 130 6.0 7.3 a 9.5 • 15.0 100 8.9 6.0 • 6.0 • 12.3 80 11.2 2.0 • 6.0 o 9,8 84 5.0 7.0 • 3.5 • 7.5

129 6,6 7.0 10.5 17.0 100 10.0 6.0 • 7.5 •12.8 82 14.0 4.1 • 9.0 • 12.8 85 2.1 8.0 • 5.5 • 9.0

12 13* 5.6 7.6 9.0 15.0 107 9.1 11.0 • 7.0 •12.0 90 10,9 11.8 •11.0 •17.0 85 6.2 8.0 • 4.0 • 9.0

1 3 138 6.2 7.9 9.3 1*.5 109 8.4 7.0 9.0 14.5 96 10.7 13.4 • 12.5 • 20.5 85 6.7 6.7 5.0 10.5

14 138 6.3 4.3 8.3 12.5 114 10.2 9.9 • 9.8 •14,8 100 11.4 11.8 • 12.0 • 16.8 86 15.7 9.3 • 6.5 •15.0

5 140 6.1 6.0 • 8.5 • 14.5 116 11.5 9.5 • 7.8 •12.8 104 19.1 18.0 • 8.5 • 14.8 87 13.4 4.0 7.5 15.0

16 1*2 7.6 6.1 8.8 14.0 118 12.1 11.7 10.3 17.0 106 16.0 17.7 11.0 16.8 87 10.4 4.4 • 8.3 •13.8

IT 1*0 9.6 5.6 6.8 14.5 118 13.7 8.1 12.5 18.5 104 16.0 13.6 •12.0 • 17.0 83 13.9 8.3 8.0 13.0

in 1*0 7.7 6.0 9.0 14.5 116 11.5 7.7 10.0 17.0 104 12.1 7.7 8.0 14.5 85 10.3 2.1 6.0 12.0

9 1*0 6.1 *.l 8.5 14,0 118 7.6 5.7 7.0 14.0 110 6.0 6.1 7.5 13.3 89 6.1 4.1 5.0 9.5

20 1*0 *.l *.0 7.5 13.8 118 6.0 4.0 6.8 11.5 111 3.1 6.6 6.5 12.3 91 4.1 4.1 4.0 8.0

21 1*0 3.6 3.6 7.5 12.0 lie 6.0 4.0 6.5 11.5 112 5.2 6.0 6.8 13.0 91 3.7 4.1 5.0 8.8

22 1*0 2.1 *.o 6.8 12.3 118 6.1 5.6 5.8 11.3 111 5.1 6.3 6.0 12.5 90 4.6 4.6 4.0 9.0

23 139 3.1 3.0 8.0 14,0 117 7.0 3.0 6.0 11.5 110 6.0 4.0 5.5 11.5 89 6.0 2.1 5.0 9.3

H

R FREQUENCY (Mc)

L

S

T

2.5 5 10 20 om Du °J vdm Ldm Fom Du D*

vdm L dm om °u P/ vdm u dm Fam °U Oj Vdm L dm

00 72 6.1 3.6 • 5.5 • 9,0 57 15.7 7,7 O 5.3 • 8.5 47 4.1 6.1 • 6.3 o 8.8 24 *.« 2.0 • 3.0 • *.5

01 72 7.6 4.0 6.5 10.5 56 18.2 5.1 5.3 8.3 47 4.1 8.1 • 5.0 • 8.0 ?4 4.1 2.0 • 3.0 • *.5

2 74 4.0 6.1 6.3 10.3 57 14.0 7.9 4.5 8.0 47 2.1 7.9 5.0 8.5 ?* 3.9 2.0 2.5 4.5

03 74 5.7 6.0 • 6.0 • 10.8 55 14.1 6.1 6.3 11.5 43 6.0 5.6 4.5 6.5 24 2.3 2.0 • 2.3 « 3.8

4 72 9.2 6.0 5.0 9.5 55 14.0 8.0 • 5.5 • 8.0 41 7.6 4.1 4.5 7.5 24 2.0 2.0 2.0 3.5

[>!! 72 1.1 2.1 5.0 9.0 56 14.0 5.0 « 5.5 •10.0 41 8.1 4.1 • 3.5 • 6.3 ?6 0.3 4.0 • 2.5 • 3.8

6 66 6.0 6.1 5.5 B.8 54 14.9 5.2 o 7.0 •11.5 47 6.0 6.1 4.0 6.5 ?4 2.3 2.0 • 2.5 • 4.5

07 56 8.0 6.6 • 6.5 • 11.0 51 11.0 8.0 • 10. •15.0 44 5.0 7.0 • 5.8 • 9.0 26 2.0 2.0 • 2.5 • 4.5

OS 48 8.0 5.3 • 6.3 •10.0 49 11.4 9.7 42 12.7 6.9 • 6.0 • 9.0 26 2.0 2.9 • 3.0 • 5.0

09 48 6.5 7.2 • 5.0 • 7.0 41 10.0 7.9 38 11.5 7.0 • 5.5 • 9.8 24 3.5 0.0 • 3.0 • 5.0

1 ,1 46 10.0 5.3 • 4.5 • 6.0 39 12.0 5.1 o e.o • 10.5 39 7.2 10.0 • 5.5 • 9.0 24 2,0 2.0 • 2.0 • 3.8

1 1 45 8.6 6.6 • 4.3 • 6.5 34 11.1 5.0 « 7.5 •10.5 39 4.1 8.1 • 5.0 • 8.5 24 2.0 0.3 • 2.0 • 4.0

2 46 9.7 5.7 » *.o • 6.5 35 13.7 6.0 # 4.8 • 6.3 39 4.2 6.2 • 5.0 • 8.0 26 2.5 4.0 • 3.5 • 5.5

1 52 20.6 8.6 • 10.0 • 15.3 37 1*.0 6.7 o 6.3 • 9.8 43 4.5 8.0 • 4,0 • 6.3 ?7 5.6 4.3 • 3.5 • 5.5

14 52 15.9 6.0 • 9.5 • 12.5 39 15.1 6.0 o 8.0 • 13.0 43 4.1 5.7 • 4.5 o 6.5 • 30 • *.5 • 6.5

:5 55 24.1 9.1 • 8.5 • 14.5 48 12.8 7.1 • 6.5 •11.5 47 6.0 8.7 • 8,0 • 13.0 30 12.0 2.7 • 3.5 • 5.0

16 58 21.4 4.1 • 6.5 • 9.5 55 10.4 9.7 o 6.5 •11.0 49 3.6 5.6 • .4.5 • 6.5 32 8.5 3.0 • 3.0 • 5.0

17 6ft 17.7 6.0 • 8.5 • 13.5 58 16.7 3.9 9 4.3 • 7.3 51 4.1 4.1 • 5.0 • 8.5 32 6.0 2.0 • 3.5 • 6.0

16 72 8.1 6.0 • 5.3 • 9.0 65 16.1 9.8 a 6.3 • 11.0 51 4,0 6.0 • 3.0 » 5.5 32 4.0 6.0 • *.5 • 6.8

19 76 8,0 5.6 6.5 9,5 66 13.0 8,8 » 4.5 • 7.5 53 *.l 8.1 • 3.3 • 5.0 32 4.0 6.3 • 4.5 • 7.0

20 76 7.7 3.7 • 6,8 • 10.3 63 17.9 7.9 5.0 • 8,5 52 5.0 6.7 • 3.0 • 5.5 ?8 4.0 *.3 • *.5 • 6.5

21 76 5.7 2.1 5.0 8.0 65 13.7 8.1 • 4.0 • 8.0 50 5.0 10.2 3.5 6.0 ?6 6.0 4.0 • 3.5 • 5.0

22 74 7.6 3.7 • 5.3 » 7.B 63 11.7 9.6 5.0 8.0 48 5.1 10.2 • 5.0 • 7.5 ?4 6.0 2.0 • 3.8 • 5.8

23 74 6.0 4.1 • 5.3 • 8.5 63 12.1 10.8 * 3.0 • 5.0 47 6.0 8.1 • 3,5 • 6.5 24 4.3 2.0 • 3.3 • 4.5

« Fewer than 15 days doto on power measurements and no computations made for DuOndD/. W Fewer than 7 days data on voltage and logarithmic measurements.

FQm = median value of effective antenna noise in db above ktb. D u

= ratio of upper decile to median in db. D/ = ratio of median to lower decile in db.

V,j m

= median deviation of overage voltage in db below mean power. Ld m = median deviation of average logarithm in db below mean power.
STATION W/lRRtNSBllRG. MO MONTH -HOUR VALUES OF RADIO NOISE

LAT. 38.7 N LONG. 93.8 W FEBRUARY 1965

H

R FREQUENCY (Mc)

k

T.

.013 .051 .160 .495

gm Du 0/ Vdm L dm Fm °u Oj Vdm Ldm Fam Du °/ Vdm L dm Mlin °u Dy Vdm L dm

00 149 9.0 7.0 • 129 107 14.3 11.0 87 15.5 5.2

01 149 11.0 7.0 • 132 106 14.0 7.7 89 13.0 8.0

2 150 10.0 6.0 • 133 103 17.0 5.7 88 16.0 8.2

3 151 10.5 7.b •131 104 15.5 8.2 87 12.0 10.2

04 151 8.5 9.0 • 133 100 19.0 4.7 86 11.4 10.5

5 149 10. b 7." • 133 98 19.5 9.2 84 14.7 11.7

oe 149 12.0 7.5 • 131 93 20.0 6.0 72 17.0 9.0

07 149 6.S 7.5 • 119 88 23.0 7.1 • 65

08 147 7.4 7.7 • 124 86 15.0 9.0 • 60 09 145 12.2 8.1 »119 87 15.0 10.0 • 61

10 14b

145 12.'

11.0 5.75.0

• 119

• 123 88

89

14.1 15.3

11.1 11.6

• 63

• 61

2 147 10.3 7.0 »124 89 16.1 11.5 • 62

3 147 12.3 5.0 • 125 89 14.9 13.1 • 63

4 148 9.3 6.0 • 123 91 16.8 14.0 • 63

b 149 8.3 7.0 • 123 91 18.7 12.0 • 63

16 1*5 12.1 5.0 • 121 91 22.2 15.5 • 64

17 1*5 11.0 6.9 • 123 96 23.3 13.6 81 20,5 14.5

18 145 11,9 5.1 • 127 100 18,4 13.9 85 15.3 11.5

19 146 11.2 4.2 • 129 100 19.3 9.9 87 15.0 10.5

20 147 10.0 5.2 •127 103 16.5 10.5 92 10.3 12.1

21 148 8.7 6.6 • 131 106 12.9 12.9 90 13.0 8.1

22 148 10.4 6.5 •131 106 12.9 15.4 91 12.7 9.6

23 147 13,9 5.1 •131 108 14.9 11.4 90 13.7 8.5

H

R.L

S

T 2.5 FREQUEIv

5 CY (Mc)10 20 am °u °J Vdm L dm Fam Du D/

vdm L dm Dm Du P/ Vdm L dm am D

„ Dy Vdm L dm

00

010203

• 6?

• 61

o 64

• 64

3.5

• 4.5

4.0

• 5.3

6.0

• 8.0

8.0

• 11.0

» 34

• 34

• 34

• 34

2.0

• 1.0

• 1.3

• 2.0

4.5

• 3.0

• 3.5

• 4.0

• 24

• 24

• ?S

• 26

• 2.0

• 1.0

• 0.8

• 1.0

• 3.0

• Z.5

• 2.5

• 3.0

0405

06

07

• 64

» 64

• 59

• 50

• 5.0

• 4.5

• 4.0

• 1.5

•12.5

» 9.0

• 7.5

» 3.8

• 34

• 33

• 43

• 48

» 1.5

• 1.3

• 3.0

• 2.0

• 4.0

• 3.8

• 5.0

• 5.0

• 26

• 26

• 26

• 26

• 1.0

• 0.8

• 1.0

• 1.0

• 2.5

• 2.5

• 2.5

• 3.0

0809

10

1 1

• 48

• 48

• 48

• 50

• 1.5

• 2.0

• 1.0 1.0

• 3.5

• 4.0

• 3.0 2.5

• 49

• 44

• 42

• 42

• 1.8

• 2.0

• 1.5

• 3.0

• 3.8

• 4.0

» 4.5

• 7.0

• 26

» 28

• 28

• 28

• 1.5

• 1.3

• 1.0

• 2.3

• 3.5

• 2.8

• 3.0

• 4.5

1213

:415

• 50

• 52

• 53

• 52

• 2.0

• 1.0

• 1.0

• 1.8

• 3.5

• 3.0

• 3.8

• 4.3

» 43

• 42

• 44

» 47

• 2.0

• 2.5

• 3.0

• 2.0

• 4.5

• 5.3

• 6.5

• 5.0

• 28

• J9

• ?9

• 27

• 2.8

• 1.0

• 1.3

• 1.5

• 3.5

• 3.0

• 3.5

• 3.8

1617

18

19

» 52

• 52

• 60

• 62

• 1.3

1.5 3.0

• 3.3

• 3.8

3.5

7.8

• 7.0

• 48

• 48

• 44

» 38

• 2.0

• 2.5

• 5.0

• 5.0

• 26

• ?6

a 24

a 24

• 1.8

• 2.0

• 0.5

1.0

• 4.0

• 3.5

• 2.3- 2.5

20

212223

• 60

• 60

• 62

• 64

• 4.5

• 5.0

• 2.8

• 3.5

• 9.5 •10.0

• 6.8

• 8.0

• 36

• 36

• 34

• 34

• 1.8

• 1.5

1.0

1.0

» 4.0

• 3.5

3.0

3.0

• j4

• 24

• 24

a ?4

1.0 0.8

• 1.0

1.0

3.0 2.5

• 2.8

3.0

# Fewer than 15 days data on power measurements and no computations made for D u andDy. « Fewer than 7 days data on voltage and logarithmic measurements.

FQfn = median value of effective antenna noise in db above ktb. D u

= ratio of upper decile to median in db. D/ = ratio of median to lower decile in db. V Cj rn

= median deviation of average voltoge in db below mean power.

L(j m

= median deviation of average logarithm in db below mean power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

BALBOA. CANAL ZONE LAT. 9.0 N LON<3. 79.5 W WINTER <*** »JAn.»FE8.) 1964-65

FREQ.

(MC)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Mim Du °J v dm L dm 'am °u DJ Vdm L dm am °u D/ Vdm L dm .013 153 4.0 4.0 12.3 14.0 153 4.1 4.0 13.0 16.0 151 4.0 4.0 10.5 12.8-

.051 134 6.0 10.0 12.0 14.0 132 6.7 14.0 12.5 15.0 118 12.0 12.0 11.0 13.5

.160 11* 6.0 8.0 10.5 13.5 110 10.0 20.0 12.8 16.0 90 22,0 16.9 9.5 11.0 .495 95 4.0 8.0 10. 12.0 88 11.0 15.0 11.5 14.0 73 16.0 6.0 6.5 9.5

2.5 64 7.0 14.0 10.5 13.5 55 16.0 17.0 9.5 13.8 33 10.9 8.4 4.0 5.0

5 53 8.0 12.0 7.0 9.0 55 10.0 14.0 8.5 10.0 39 8.0 8.0 6.0 11.5

10 35 5.0 8.0 7.0 8.0 34 10.0 6.0 6.8 8.0 33 12.7 10.0 3.0 5.5

20 22 4.0 2.0 4.8 5.0 23 4.0 3.0 5.5 6.5 23 4.0 2.0 2.5 3.5

FREQ.

(MO

TIME BLOCKS (LST)

1200-1600 1600-2000 2000-2400

am Du °y vdm L dm am Du °J Vdm L dm Fam Du D

./ vdm L dm

.013 155 4.0 4.0 9.5 12.0 153 6.0 4.0 11.5 13.5 153 4.6 5.3 12.0 16.0

.051 126 8,0 14.0 9.5 11.3 128 8.0 10.0 11.0 14.0 132 6.0 10.0 11.5 15.0

.160 94 12.0 14.0 9.3 12.3 106 10.0 14.0 9.5 12.0 112 fl.O 6.0 9.5 12.5

.495 73 10. 6.0 5.5 5.5 87 8.0 14.0 8.0 10.0 93 6.0 6.0 8.8 11.0 2.5 31 12.9 8.0 2. ft 4.5 49 16.1 14.1 7.0 10.5 62 7.0 13.0 7.0 9.8

5 37 10.0 8.0 3.5 4.0i 53 16.0 12.0 5.3 8.8 59 7.7 20.0 7.0 8.8

10 31 7.3 7.3 4.5 6.5 39 13.0 7.0 5.0 6.5 34 5.7 5.5 5.0 7.0

20 ?i 6.0 2.0 2.. 5 3.5 23 5.0 2.0 4.0 5.0 22 2.9 2.0 4.0 5.0

Du

= ratio of upper decile to median In db.

Djg - ratio of median to lower decile in db. V$ m

- median deviation of average voltage in db below mean power. Ldm = median deviotion of average logarithm in db below mean power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

BILL' WYOMING LAT. 43.2 N LONG. 105.2 W WINTER (DEC. t JAN. «FEB . ) 1964-65

FREQ.

(MO

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

'am DU °J Vd m L dm am Du *J vdm L dm Fom °u Dl Vdm L dm

.013 154 4.0 4.0 9.0 14.5 154 4.0 4.0 10.0 15.5 150 6.0 4.9 9.5 15.0

.051 130 4.5 5.0 3.0 7.0 129 5.0 6.6 2.8 7.0 119 7.0 9.0 2.5 6.5

.160 99 12.0 8.0 7.5 13.0 89 14.0 12.0 6.5 11.5 71 13.4 6.0 3.0 4.5 .495 82 10.0 8.0 6.5 11.5 68 14.0 14.0 5.0 9.0 54 10.0 4.0 2.0 4.0 2.5 55 8.0 6.0 4.0 7.0 51 8.0 6.0 3.5 6.5 27 10. 6.0 2.0 3.5

5 52 6.0 4.0 4.0 7.5 50 6.0 4.0 4.0 7.0 32 10.0 6.0 2.0 3.5

10 33 9.0 3.0 2.0 4.0 36 6.0 5.0 2.5 5.0 36 5.3 4.0 2.5 4.5

20 26 1.0 2.5 26 1.0 1.0 1.0 2.0 27 2.0 1.0 1.5 3.0

FREQ.

(MO

TIME BLOCKS (LST)

1200-1600 1600-2000 2000-2400

am °u DJ

vdm L dm Fom Du DJ

Vd m L dm Fom Du DJ Vdm L dm

.013 150 6.0 4.0 10.3 15.5 150 6.0 6.0 11.5 17.0 152 6.0 4.0 10.5 16.0

.051 119 8.0 9.0 3.0 7.0 124 8.0 6.0 3.0 7.0 128 6.0 3.0 3.0 7.5

.160 71 15.5 6.5 3.0 4.5 91 16.0 13.0 7.0 11.5 98 14.0 9.0 7.5 13.0 .495 54 12.0 4.0 2.0 4.0 74 15.1 15.1 4.5 8.5 82 12.0 6.0 5.5 10.5 2.5 25 8.1 4.0 2.0 3.5 49 10.1 14.0 3.0 5.0 55 8.0 4.0 4.0 7.0

5 30 11.0 4.0 2.0 3.0 51 6.0 7.0 3.0 6.0 54 5.0 5.0 3.5 7.0

10 37 6.0 5.0 3.0 5.5 36 10.0 6.0 2.5 4.5 32 6.0 3.0 1.5 3.0

20 27 3.0 2,0 2*0 3.0 25 1.0 1.0 1.0 2.0 25 1.0 1.0 1.0 2.5

FQm = median value of effective antenna noise in db above ktb. Du

= ratio of upper decile to median In db. Oj = ratio of median to lower decile in db.

Vjj m

= median deviation of average voltage in db below mean power. Ldm = rne^' an deviation of overage logarithm in db below meon power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

BOULDER. COLORADO LAT. 40.1 N LONG. 105.1 W WINTER (DEC. i JAN. .FEB. ) 1964-65

FREQ.

(Mc)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Mjm Du DJ Vdm L dm 'am Du <>J Vd m L dm Fam °U D£

Vd m L dm

.013 154 6.0 5.7 10.5 16.0 153 6.0 5.0 12.0 18.0 149 8.0 5.4 11.5 16.5-

• 051 136 6.6 6.0 4.5 9.5 134 6.0 7.0 3.5 8.3 127 7.0 10.0 3.5 8.0

.160 98 15.0 7.1 7.0 13.0 88 15.5 9.0 8.3 12.5 81 8.0 6.0 6.5 13.0

.495 82 11.0 8.0 7.5 14.0 69 15.1 7.0 5.5 9.5 63 6.0 4.0 3.0 6.0

2.5 55 8.0 4.0 4.0 6.5 52 8.6 6.0 3.5 6.0 43 4.0 4.0 2.5 4.0

5 54 6.0 5.1 4.8 8.0 52 7.0 8.0 4.0 6.5 39 6.0 7.0 2.5 4.5

10 35 8.0 7.0 2.8 4.5 37 7.0 7.0 2.3 4.0 36 7.0 7.7 3.0 4.8

20 23 2.0 2.0 1.5 2.5 23 2.0 1.0 1.8 3.0 25 3.0 2.0 2.0 3.5

FREQ

(MC)

TIME BLOCKS (LST)

1200-1600 1600-2000 2000-2400

am °u DJ

vdm L dm ^om Du D* vdm L dm ^om DU Dv

vdm L dm

.013 150 6.5 6.0 12.0 17.0 151 6.0 8.9 13.0 19.0 152 7.4 6.0 12.5 18.0

.051 125 9.0 11.2 3.8 8.8 131 5.0 7.0 4.0 8.5 135 5.0 7.4 4.5 9.0

.160 81 9.0 4.0 8.5 12.0 92 15.0 11.0 8.8 13.8 99 12.0 9.0 8.5 14.0

.495 64 5.0 4.0 2.5 5.0 75 15.0 11.0 5.0 10.0 82 13.0 8.0 6.0 11.5

2.5 43 4.0 3.0 2.0 3.5 51 10.0 7.0 3.0 5.0 55 10.0 4.0 3.5 6.0

5 39 6.0 5.0 2.5 4.5 54 6.0 7.2 4.0 7.0 56 7.0 5.2 4.0 6.5

10 37 5.0 8.0 2.5 4.5 35 11.0 6.0 3.0 4.5 32 6.2 7.2 2.0 3.5

20 25 3.0 2.0 2^0 3.0 23 2.0 2.0 2.0 3.0 23 1.0 2.0 1.5 3.0

Fam = median value of effective antenna noise in db above ktb. Du

= ratio of upper decile to median 1n db. Oj = ratio of median to lower decile in db.

V,j m= median deviation of overage voltage in db below mean power.

L^fj, = median deviation of average logarithm in db below mean power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

COOKt AUSTRALIA |_AT. 30.6 S LONG. 130.4 E SUMMER (DEC. » JAN. t FEB. ) 1964-65

FREQ.

(Mc)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

^om °u 0/ Vdm L dm Fom Du *J vdm L dm "am DU °i vdm L dm

.013 158 5.0 3.9 9.5 15.5 156 4.0 4.0 10.5 17.0 154 5.7 4.0 13.0 20.0-

.051 135 4.0 4.0 9.5 16.0 127 8.0 8.0 10.5 17.5 121 8.0 4.0 11.5 20.0

.160 111 6.0 6.0 7.3 13.5 93 18.0 16.0 8.5 15.5 85 10.0 8.0 9.5 16.5

.495 91 7.0 7.0 6.5 12.5 62 27.9 18.0 6.3 13.0 47 18.6 8.7 4.0 7.0

2.5 65 6.0 6.9 5.5 10.0 54 11.5 20.5 7.0 12.8 22 11.0 3.0 6.5 9.0

5 5a. 5.0 4.0 4.5 8.0 53 7.0 18.0 6.0 9.5 24 11.0 7.0 8.0 11.5

10 42 5.0 4.0 5.5 8.5 37 5.1 4.0 5.0 7.5 28 5.0 3.0 4.0 5.5

20 22 0.0 2.0 2.5 3.5 22 1.0 0.0 2.5 4.0 22 2.0 0.0 2.8 4.3

FREQ.

(MC)

TIME BLOCKS (LST)

1200-1600 1600-2000 2000-2400

am Du

" DJ

vdm L dm ^am Du °J Vdm L dm Fom ° U DJ

vdm L dm

.013 157 5.0 7.0 10.0 16.5 160 4.0 6.0 7.5 13.0 160 4.0 6.0 10.0 16.0

.051 129 6.0 8.0 7.5 14.0 131 6.0 8.0 6.5 11.0 136 5.0 5.0 8.0 14.5

.160 93 8.0 10.0 6.0 11.0 101 14.0 10.0 6.0 10.5 113 6.0 6.0 6.0 11.5

.495 4 7 16.1 7.0 4.3 7.0 70 19.0 22.1 5,0 8.8 93 6.1 7.0 6.0 12.0

2.5 20 7.4 1.5 6.0 9.0 49 16.1 23.0 4.0 7.5 67 6.0 6.0 5.0 9.0

5 28 10.0 11.0 5.0 8.0 51 9.0 13.0 4.5 7.5 59 4.0 5.0 4.5 8.0

10 32 7.0 7.0 4.0 6.5 45 4.0 4.0 4.5 7.0 47 18.0 5.0 5.5 9.0

20 24 6.0 2.0 3-0 5.0 26 6.0 4.0 3.5 5.3 22 2.0 2.0 2.5 3.5

Du

= ratio of upper decile to median In db. Dj = ratio of median to lower decile in db.

V(j m = median deviation of average voltage in db below mean power. Ldm = medion deviation of average logarithm in db below mean power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

ENKOPING, SWEDEN LAT. 59.5 N l_ON0. 17.3 E WINTER (DEC. .JAN. , FEB. ) 1964-65

FREQ.

(Mc)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Fom D„ °J Vdm L dm 'om °u °J V<Jm L dm Fam °u °£ Vdm L dm

.013 149 3.0 3.0 11.0 16.5 149 3.0 4.0 12.0 18.5 143 6.5 4.5 12.0 18.5

.051 117 4.0 4.0 9.0 14.0 115 4.0 6.0 11.0 16.5 101 8.0 8.0 10.5 15.0

.160 103 6.0 8.0 5.0 9.0 104 9.0 8.0 4.5 9.0 92 6.9 9.1 5.0 9.0

.495 99 6.0 8.0 2.5 2.5 85 12.0 20.0 1.5 2.0 65 12.2 8.2 2.0 2.5

2.5 56 6.2 4.0 5.0 8.0 54 6.0 4.0 5.0 8.0 43 9.0 8.0 5.0 8.0

5 54 10.0 6.0 4.5 7.5 52 8.3 6.0 5.8 9.0 42 13.0 10.0 4.0 6.0

10 34 5.0 3.0 2.5 4.0 33 4.0 2.0 2.0 3.5 46 4.0 6.0 9.3 12.3

20 20 2.0 2.0 1.0 3.0 22 -0.0 4.0 1.0 2.5 22 6.0 4.0 2.3 4.0

FREQ.

(MC)

TIME BLOCKS (LST)

1200-1600 1600-2000 2000-2400

am Du °J vdm L dm Fam DU DJ Vdm L dm Fom Du °J vdm L dm

.013 144 3.0 4.0 9.0 14.0 146 4.0 4.0 7.5 12.3 149 3.0 3.0 e.o 13.0

.051 97 10.0 6.0 10.0 13.5 111 6.0 10.0 8.5 13.0 115 6.0 4.0 8.0 12.5

.160 91 7.0 11.1 5.0 8.3 97 8.3 8.0 4.5 8.3 101 8.0 6.0 5.3 9.3

.495 71 16.0 14.0 1.5 2.0 90 9.0 23.0 2.5 4.0 99 6.0 6.0 2.0 2.0

2.5 41 8.2 6.0 4.0 6.5 51 9.0 7.0 4.0 7.0 55 6.0 4.0 4.5 8.0

5 37 25.3 7.0 3.5 5.5 57 8.5 9.5 7.0 10.0 55 9.0 6.0 5.5 8.0

10 44 6.0 5.0 7.0 9.5 37 9.0 6.0 3.0 5.0 33 5.0 2.0 2.0 3.8

20 22 2.0 4.0 1..5 3.5 20 2.0 2.0 1.0 2.5 20 2.0 2.0 1.5 3.0

Fam = median value of effective antenna noise in db above Ktb. Du

= ratio of upper decile to median In db- Oj = ratio of median to lower decile in db. ^dm " median deviation of average voltage in db below mean power.

'-dm = median deviation of average logarithm in db below mean power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

FRONT ROYAL. VA. LAT. 38.8 M LONG. 78.2 W WINTER (DEC. » JAN. rFEB. ) 1964-65

FREQ.

(Mc)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Fom DU DJ Vdm L dm Fom Du D/ Vdm ^dm Fom Oy D./ vdm L dm

.135 106 8.9 6.0 102 8.0 8.0 91 S.O 4.0

.5 84 8.0 7.0 73 13.0 12.0 57 4.0 4.0 2.5 65 11.1 10.0 60 12.0 8.0 37 8.0 6.0

5 55 6.0 5.0 53 6.0 4.0 38 5.0 5.0

10 34 3.0 3.0 34 4.0 2.0 37 4.0 4.0

20 22 2.0 1.0 24 1.0 1.0 24 2.0 1.0

FREQ.

(MC)

TIME BLOCKS (LST)

1200-1600 1600-2000 2000-2400

am °u DJ

vdm L dm ^am °u DJ

vdm L dm *am Du D^ Vdm L dm

.135 90 8.9 3.1 95 12.0 6.0 105 9.0 6.0

,5 58 4.0 4.0 70 13.0 10.1 83 8.0 5.0

2.5 35 5.9 5.0 54 14.0 11.0 65 10. 11.0

5 34 5.0 3.6 53 7.0 7.7 55 8.0 5.0

10 37 4.0 4.0 40 5.0 5.0 34 2.0 3.0

20 25 2.0 2.0 24 1.0 1.0 22 2.0 1.0

Fom = median value of effective antenna noise in db above ktb. Du

= ratio of upper decile to median 1n db. Dj = rotio of median to lower decile in db.

V(j m

= median deviation of average voltage in db below mean power. '-dm = median deviotion of average logarithm in db below mean powp'
SEASONAL TIME -BLOCK VALUES OF RADIO NOISE

KEKAHA, HAWAII LAT. 22.0 N LONG. 159.7 W WINTEfe (DEC. t JAN. , FEB. ) 1964-65

FREQ.

(Mc)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Fom °u °J vdm L dm Fom °u °J Vdm L dm "iim °u °Jt Vdm L dm

.013 153 6.0 3.0 10.0 16.0 154 5.0 3.0 10.5 17.0 150 5.0 3.1 11.5 18.0

.051 130 8.1 4.0 11.0 17.0 130 8.0 8.0 12.0 19.0 115 17.0 13.0 12.3 18.0

.160 108 13.0 6.0 10.0 16.5 105 16.0 13.0 11.0 18.5 8? 29.9 14.0 12.0 21.0

.495 88 16.0 8.0 9.5 17.5 82 20.0 20.0 10.5 19.0 58 34.0 6.0 6.5 10.5

2.5 63 12.0 6.0 7.0 11.0 61 11.5 6.5 6.8 11.0 43 20.0 10.0 3.5 6.0

5 52 1U.0 4.0 4.5 7.5 50 10.0 4.0 4.0 7.0 36 18.0 12.3 4.8 8.0

10 34 8.0 6.0 3.0 5.0 32 8.0 4.0 2.5 4.0 32 8.0 9.5 6.0 8.0

20 23 4.0 2.0 1.5 3.0 25 2.0 4.0

J 2.0 3.5 23 4.0 2.0 2.5 4.0

FREQ.

(MC)

TIME BLOCKS (LST)

1200- 1600 1600-2000 2000-2400

om Du °J vdm L dm am °u If vdm L dm Fom Du D* vdm L dm

.013 150 6.0 3.0 13.0 20.0 149 7.0 3.0 12.0 19.0 152 6.0 4.0 9.5 15.0

.051 112 17.7 8.0 14.5 20.5 114 16.5 12.0 12.5 17.5 124 12.0 8.0 12.0 18.0

.160 84 25.4 18.0 13.8 24.5 91 22.0 19.1 12.0 21.5 104 14.0 10.0 12.0 19.5

.495 58 32.0 8.0 6.5 10.0 72 24.3 18.0 9.3 16.5 86 16.0 8.0 11.5 19.5

2.5 36 17.0 6.0 3.0 4.5 49 20.0 14.0 5.5 10.5 61 12.0 7.0 8.0 13.0

5 26 19.5 6.0 4.0 6.8 45 11.0 13.0 6.0 10.0 50 8.0 4.0 5.5 9.0

10 28 14.0 8.0 6.5 9.5 34 8.0 4.0 4.5 7.0 34 8.0 4.0 3.5 5.8

20 23 4.0 2.0 2.5 4.5 23 2.0 2.0 1.5 3.5 23 4.0 2.0 2.0 3.5

Fam = median value of effective antenna noise in db above ktb. Du

= ratio of upper decile to median 1n db. 0/ = ratio of median to lower decile in db. Vdm ' m«dian deviation of average voltage in db below mean power.

'-dm = median deviation of average logarithm in db below meon power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

NEW DELHI, INDIA |_AT. 28.8 N LONG. 77.3 E WINTER (DEC. . JAN. t FEB, ) 1964-65

FREQ.

(MC)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Fam °u °J Vd m L dm 'am °u °J Vd m L dm ^am °u 0/ Vdm L dm

.013 157 4.0 2.9 6.5 9.0 156 4.0 3.0 6.5 9.5 153 3.0 3.0 5.5 8.0

.051 132 6.3 5.0 9.0 12.5 127 8.0 8.0 8.0 11.5 117 7.3 5.0 4.0 6.5

.160 108 10.1 7.0 8.0 12.5 102 13.6 12.0 8.0 12.0 92 11.0 8.0 5.8 10.0 .495 90 10.0 6.0 4.0 6.5 82 12.0 8.0 3.5 5.5 74 12.0 6.0 2.5 4.5

2.5 67 6.0 12.0 3.5 6.5 63 9.0 12.0 3.5 6.0 53 18.0 9.0 3.5 6.0

5 63 7.0 9.0 3.8 6.0 57 11.5 8.5 3.5 6.5 48 19. 13.0 4.5 7.5

10 43 10.0 9.0 3.0 5.0 44 9.0 10.0 2.5 5.0 42 11. 6.0 5.0 7.5

20 25 2.0 2.0 1.5 3.0 25 2.0 2.0 2.0 3.5 25 2.0 2.0 2.0 3.5

FREQ.

(MC)

TIME BLOCKS (LST)

1200- 1600 1600-2000 2000-2400

am °u DJ

vdm L dm Fam Du dj Vdm L dm Fam Du °J Vdm L dm

.013 154 3.0 3.0 6.5 8.5 156 3.0 2.0 6.0 8.5 158 3.0 2.0 6.5 9.0

.051 118 10.5 6.5 6.0 8.8 121 16.0 7.0 8.5 11.5 131 8.0 8.0 8.0 11.0

.160 92 18.0 8.0 7.5 11.8 102 17.0 12.0 8.0 13.5 110 10.7 6.7 7.0 11.5

.495 74 14.0 6.0 4.0 5.5 84 18.0 10.0 6.0 8.5 88 14.0 4.0 5.0 7.5 2.5 53 17.0 11.0 4.0 6.5 61 11.0 13.6 3.5 6.0 65 8.0 10.0 3.5 6.0

5 46 20.5 12.5 5.0 7.5 57 11.0 11.0 3,8 6,0 63 7.0 10.1 3.5 5.5

10 41 12.0 9.0 4.0 6.0 48 13.0 7.9 4.5 6.5 46 9.0 10.0 3.0 5.0

20 27 10.0 3.0 3..0 4.5 25 8.0 2.0 2.5 4.0 23 2.0 0.0 1.5 3.0

Fam = median value of effective antenna noise in db above ktb. Du

= ratio of upper decile to median In db. D£ - ratio of median to lower decile in db.

V,j m

= median deviation of average voltage in db below mean power. '-dm = median deviation of average logarithm in db below mean power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

OHIRA, JAPAN LAT. 35t6 N LONG. 140. 5 E WINTER (DEC. .JAN. .FEB. ) 1964-65

FREQ.

(MC)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Fom °u °J Vdm L dm Fam °u °J vdm L dm Fam °u °jt Vdm L dm

.013 156 4.0 3.0 10.5 16.0 156 4.0 4.0 12.0 17.5 155 3.2 4.0 13.5 20.0-

.051 134 4,0 6.0 11.5 18.0 130 8.0 12.0 13.0 19.0 116 13.9 8.0 14.5 21.0

.160 111 8.0 6.0 10.0 16.5 103 12.0 17.5 9.5 15.0 85 20.0 8.0 11.0 16.8

.495 89 9.0 7.0 8.5 13.0 78 14.0 15.0 9.0 14.0 68 16.0 6.0 4.0 8.5

2.5 58 10.0 7.5 6.3 9.3 54 14.0 8.0 7.8 11.5 44 6.9 4.0 6.5 9.5

5 56 14.0 6.0 4.0 6.5 64 8.0 10.0 8.5 12.5 40 16.0 8.0 5.5 9.0

10 35 16.3 7.0 3.0 6.0 34 21.0 4.0 3.0 5.5 40 21.1 10.0 3.0 6.5

20 21 3.0 1.0 1.5 3.0 23 1.0 2.0 1.5 3.0 23 3.0 1.0 1.5 3.0

FREQ.

(MC)

TIME BLOCKS (LST)

1200- 1600 1600-2000 2000-2400

am Du DJ

Vdm L dm Fam DU °J Vdm L dm Fam °u ^ vdm L dm

.013 156 2.0 4.0 14.0 19.5 156 3.0 3.0 10.0 15.5 156 4.0 3.0 10.5 16.0

.051 118 10.0 8.0 12.3 18.3 124 8.0 14.0 11.5 17.3 132 6.0 4.0 11.0 17.0

.160 85 16.3 8.0 12.8 18.0 99 12.0 14.6 11.0 17.0 109 8.0 6.0 9.5 15.0

.495 68 14.0 6.0 8.0 10.5 82 10.0 10.6 9.0 14.5 88 10.0 4.0 7.5 12.5

2.5 42 6.0 4.0 6.5 9.5 52 11.9 10.0 5.5 9.5 60 8.0 8.0 7.0 10.5

5 38 18.0 6.0 5.0 9.0 63 6.0 8.0 7.5 12.0 59 10.0 9.0 6.0 9.5

10 46 11.0 14.0 3.5 6.0 51 13.0 17.1 3.5 7.0 38 16.9 8.0 2.5 5.5

20 23 3.0 1.0 2.0 3.5 22 2.0 1.0 1.5 3.0 21 2.0 1.0 1.5 3.0

FQm = median value of effective antenna noise in db above ktb.

U

= ratio of upper decile to median 1n db. 0/ = ratio of median to lower decile in db.

Vjj,,, = median deviation of average voltage in db below mean power.

l-dm = median deviation of average logarithm in db below mean power
SEASONAL TIME -BLOCK VALUES OF RADIO NOISE

PRETORIA, S. AFR. LAT. 25.8 S LONG. 28.3 E SUMMER (DEC. .JAN. .FEB.) 1964-65

FREQ.

(Mc)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Fam Du °J vdm L dm ^om °u °J Vd m L dm Fam Du DI

Vd m L dm

.013 159 6.0 4.1 155 6.9 6.0 155 8.0 8.0

.051 137 7.0 7.0 128 9.5 10.5 125 10. 8.0

.160 116 8.0 6.0 102 16.0 16.2 94 20.1 10.0 .495 98 8.0 6.0 78 18.0 19.4 64 30.0 6.0 2.5 71 7.0 8.0 63 10.0 19.0 44 8.2 6.0

5 59 6.5 6.0 53 8.8 12.0 37 11.0 10.0

10 40 8.0 6.0 38 7.1 6.0 34 8.0 6.0

20 21 4.5 2.0 21 6.0 4.0 23 11.9 4.0

FREQ.

(MC)

TIME BLOCKS (LST)

1200- 1600 1600-2000 2000-2400

am Du °J Vdm L dm ^am °u D/ vdm L dm Fom Du °J vdm L dm

.013 165 6.0 9.9 167 6.0 6.1 164 7.0 5.6

.051 141 8.0 9.0 144 7.3 10.0 140 8.0 6.0

.160 120 12.0 19.5 124 10.0 14.0 120 8.0 6.0

.495 96 16.0 29.0 100 14.3 14.3 102 8.0 4.0

2.5 57 20.1 14.3 73 10.0 14.7 74 8.0 7.0

5 47 16.0 18.0 61 10.0 12.0 61 12.0 8.0

10 44 10.0 10.0 52 4.0 6.0 46 10. 6.0

20 29 14.0 6.0 29 8.0 6.0 21 10. 2.0

Fom = median value of effective antenna noise in db above Ktb. Du

= ratio of upper decile to median 1n db. D£ - ratio of median to lower decile in db. Vdm = median deviation of average voltage in db below mean power.

L(j m = median deviation of average logarithm in db below mean power.
SEASONAL TIME -BLOCK VALUES OF RADIO NOISE

SAO JOSE. BRAZIL LAT. 23.3 S LONG. 45.8 w SUMMER (DEC. .JAN. .FEB.) 1964-65

FREQ.

(MC)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Fom °u °J Vdm L dm Fam °u D* vdm L dm Fom °u °e vdm L dm

.051 137 7.0 7.0 8.5 14.5 130 10.0 9.4 9.5 15.5 127 8.6 8.0 9.0 14.0"

.113 118 7.2 6.0 7.5 13.0 106 12.6 12.0 8.8 14.5 101 10.0 8.6 9.3 14.5

.246 106 6.0 8.0 7.0 13.0 86 19.5 10.0 8.0 12.0 82 12.0 6.0 8.3 12.0

.545 89 4.0 6.0 5.0 9.0 85 6.0 9.0 5.8 10.5 87 6.0 8.1 5.5 10.3

2.5 70 7.0 a.o 6.5 10.5 63 11.0 17.0 6.5 11.0 43 10.0 9.0 6.0 9.0

5 57 12.0 10.0 5.5 9.5 53 12.0 12.0 6.0 10.5 39 10. 8.0 6.0 10.5

10 43 8.0 8.0 5.5 8.5 41 8.0 7.8 5.0 7.5 37 6.0 8.0 6.5 10.5

20 25 4.0 2.0 2.0 4.0 25 4.0 2.0 2.0 3.5 26 5.0 3.0 3.0 4.8

FREQ.

(MC)

TIME BLOCKS (LST)

1200-1600 1600-2000 2000-2400

am °u Oj vdm L dm Fam Du DJ Vdm L dm Fam Du D, Vdm L dm

.051 138 11.0 10.0 10.0 15.0 142 7.0 9.0 9.3 15.0 139 5.0 5.6 8.5 14.0

.113 116 17.0 14.0 10.5 16.5 120 12.0 11.0 10.0 16.0 121 6.0 7.0 7.0 11.5

.246 100 22.0 20.0 11.5 17.5 106 12.0 16.0 10.0 16.5 108 6.0 8.0 7.5 14.0

.545 91 16.0 10.0 7.3 13.0 89 12.0 8.0 6.5 11.5 91 5.3 6.0 5.0 9.5

2.5 51 25.1 15.0 8.5 13.0 70 10.0 16.9 6.5 11.0 73 6.5 7.5 5.5 9.5

5 41 18.5 10.0 6.5 11.0 59 14.0 10.0 5.0 8.5 63 10.0 10. 4.5 8.0

10 41 8.0 8.0 6.0 9.0 49 5.1 8.0 5.0 8.0 45 8.0 8.0 5.0 8.0

20 29 10.0 4.0 4.0 6.0 32 6.0 5.1 4.0 6.5 25 6.0 2.0 3.0 5.0

Fam = median volue of effective antenna noise in db above ktb. Du

= ratio of upper decile to median In db. 0/ = ratio of median to lower decile in db.

V(j m= median deviation of average voltoge in db below mean power. Ldm = median deviation of average logarithm in db below meon power.
SEASONAL TIME-BLOCK VALUES OF RADIO NOISE

WARR£NSBURG< MO. LAT. 38.7 N LONG. 93.8 W WINTER ( *** *** tFEB.) 1964-65

FREQ.

(Mc)

TIME BLOCKS (LST)

0000-0400 0400-0800 0800-1200

Fam Du °J v dm L dm Fam Du °J Vdm L dm •am °u °£ Vdm L dm

,013 149 10.2 7.0 149 9.9 7.0 145 11.1 5.0

.051 131 4.0 4.0 131 4.0 12.0 121 4.0 4.1

.160 104 1ft. 7.0 96 20.0 9.2 88 12.2 11.0 .495 88 14.0 8.0 78 17.1 16.1 61 24.6 2.1 2.5 62 H.'-J 4.0 4.5 8.0 60 6.0 10.0 4.5 9.0 48 6.0 5.5 1.0 3.5

5

10 34 2.9 2.9 1.5 3.5 37 11.9 5.0 1.5 4.0 44 7.3 7.3 2.0 4.3

20 24 2.0 0.0 1.0 2.5 26 1.0 2.8 26 4.0 2.0 1.5 3.5

FREQ.

(MC)

TIME BLOCKS (LST)

1200- 1600 1600-2000 2000-2400

am °u °J vdm L dm Fam °u °J Vd m L dm Fom DU °J Vdm L dm

.013 147 10.0 5.0 145 12.0 5.0 147 10. 5.0

.051 123 ft.O 0.0 125 10.9 6.0 130 22.0 7.2

.160 90 1S.0 11.3 97 21.0 12.7 107 13.1 13.0 .495 63 21.0 4.0 82 17.6 17.1 90 13.5 9.5

2.5 52 2.0 11.1 1.0 3.5 56 11.9 7.9 3.0 6.0 62 17.8 4.0 4.0 8.0

5

10 44 4.9 t.O 2.3 5.0 46 7.9 8.0 2.3 5.0 36 5.9 4.0 1.0 3.5

20 28 4.0 4.0 1.5 3.5 25 5.0 1.2 1.0 3.0 24 4.1 0.0 1.0 2.5

Fom = median value of effective antenna noise in db above kfb. Du

= ratio of upper decile to median 'in db. Dj = ratio of median to lower decile in db. Vdm = median deviation of average voltage in db below mean power.

'-dm = median deviation of average logarithm in db below mean power.





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