TEST REPORTFCC ID: 2AG87NM-DB-3-R2
Product: Wi-Fi® Radio Transceiver
Model No.: NM-DB-3-R2
Additional Model No.: NM-DB-2-R2, NO-DB-3-R2, NO-DB-2-R2
Trade Mark: N/A
Report No.: TCT200410E005
Issued Date: Jun. 18, 2020

Issued for:
Doodle Labs (SG) Pte Ltd
150 Kampong Ampat, KA Center, Suite 05-03, Singapore 368324

Issued By:
Shenzhen Tongce Testing Lab.
1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District,
Shenzhen, Guangdong, China
TEL: +86-755-27673339
FAX: +86-755-27673332

Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab.
This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in
the revision section of the document. The test results in the report only apply to the tested sample.

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Report No.: TCT200410E005

TABLE OF CONTENTS
1. Test Certification ..................................................................................... 3
2. Test Result Summary .............................................................................. 4
3. EUT Description ....................................................................................... 5
4. General Information................................................................................. 7
4.1. Test environment and mode ................................................................................. 7
4.2. Description of Support Units ................................................................................ 8

5. Facilities and Accreditations .................................................................. 95.1. Facilities ................................................................................................................. 95.2. Location ................................................................................................................. 95.3. Measurement Uncertainty ..................................................................................... 9

6. Test Results and Measurement Data ................................................... 10
6.1. Antenna requirement .......................................................................................... 10
6.2. Conducted Emission ........................................................................................... 11
6.3. Maximum Conducted Output Power .................................................................. 15
6.4. Emission Bandwidth ........................................................................................... 176.5. Power Spectral Density ....................................................................................... 18
6.6. Conducted Band Edge and Spurious Emission Measurement ....................... 20
6.7. Radiated Spurious Emission Measurement ...................................................... 22

Appendix A: Test Result of Conducted Test
Appendix B: Photographs of Test Setup
Appendix C: Photographs of EUT

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Report No.: TCT200410E005

1. Test Certification
Product:

Wi-Fi® Radio Transceiver

Model No.:

NM-DB-3-R2

Additional
Model No.:

NM-DB-2-R2, NO-DB-3-R2, NO-DB-2-R2

Trade Mark:

N/A

Applicant:

Doodle Labs (SG) Pte Ltd

Address:

150 Kampong Ampat, KA Center, Suite 05-03, Singapore 368324

Manufacturer: Doodle Labs (SG) Pte Ltd
Address:

150 Kampong Ampat, KA Center, Suite 05-03, Singapore 368324

Date of Test:

Apr. 12, 2020 – Jun. 17, 2020

ApplicableStandards:

FCC CFR Title 47 Part 15 Subpart C Section 15.247
FCC KDB 558074 D01 15.247 Meas Guidance v05r02
FCC KDB 662911 D01 Multiple Transmitter Output v02r01
ANSI C63.10:2013

The above equipment has been tested by Shenzhen Tongce Testing Lab. and foundcompliance with the requirements set forth in the technical standards mentioned above. The
results of testing in this report apply only to the product/system, which was tested. Other
similar equipment will not necessarily produce the same results due to production tolerance
and measurement uncertainties.

Tested By:

Date:Jun. 17, 2020

Date:

Jun. 18, 2020

Date:

Jun. 18, 2020

Brews Xu
Reviewed By:
Beryl Zhao
Approved By:
TomsinPage 3 of 138

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2.

Test Result Summary
Requirement

CFR 47 Section

ResultAntenna requirement§15.203/§15.247 (c)PASS

AC Power Line Conducted
Emission§15.207

PASS

Conducted Peak Output
Power§15.247 (b)(3)PASS

6dB Emission Bandwidth§15.247 (a)(2)PASS

Power Spectral Density§15.247 (e)PASSBand Edge§15.247(d)PASSSpurious Emission§15.205/§15.209

PASS

Note:
1. PASS: Test item meets the requirement.
2. Fail: Test item does not meet the requirement.
3. N/A: Test case does not apply to the test object.
4. The test result judgment is decided by the limit of test standard.

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3. EUT Description
Product:

Wi-Fi® Radio Transceiver

Model No.:

NM-DB-3-R2

Additional Model No.:

NM-DB-2-R2, NO-DB-3-R2, NO-DB-2-R2

Trade Mark:

N/A

Operation Frequency:

2412MHz~2462MHz (802.11b/802.11g/802.11n(HT20))
2422MHz~2452MHz (802.11n(HT40))

Channel Separation:

5MHz

Number of Channel:

11 for 802.11b/802.11g/802.11n(HT20)
7 for 802.11n(HT40)

Modulation Technology(IEEE 802.11b) :Modulation Technology(IEEE 802.11g/802.11n) :Data speed (IEEE802.11b):

Direct Sequence Spread Spectrum (DSSS)
Orthogonal Frequency Division Multiplexing(OFDM)
1Mbps, 2Mbps, 5.5Mbps, 11Mbps

Data speed (IEEE802.11g):

6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36Mbps,
48Mbps, 54Mbps

Data speed (IEEE802.11n):

Up to 300Mbps

Antenna Type:

External Antenna

Antenna Gain:

ANT0: 3dBi, ANT1: 3dBi, ANT2: 3dBi

Power Supply:

DC 3.3V

Remark:All models above are identical in interior structure, electricalcircuits and components, and just model names are different
for the marketing requirement.

Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not
responsible for this parameter.

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Operation Frequency each of channel For 802.11b/g/n(HT20)
Channel Frequency Channel Frequency Channel Frequency Channel Frequency
12412MHz
4
2427MHz7
2442MHz
102457MHz2
2417MHz
52432MHz
82447MHz
11
2462MHz
3
2422MHz
6
2437MHz
92452MHzOperation Frequency each of channel For 802.11n (HT40)
Channel Frequency Channel Frequency Channel Frequency Channel Frequency--42427MHz7
2442MHz----52432MHz
82447MHz
--3
2422MHz
6
2437MHz
92452MHzNote:
In section 15.31(m), regards to the operating frequency range over 10 MHz, the Lowest frequency, the middle
frequency, and the highest frequency of channel were selected to perform the test, and the selected channel see
below:

802.11b/802.11g/802.11n (HT20)

ChannelThe lowest channel
The middle channel
The Highest channel

Frequency
2412MHz
2437MHz
2462MHz802.11n (HT40)

ChannelThe lowest channel
The middle channel
The Highest channel

Frequency
2422MHz
2437MHz
2452MHz

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4. General Information
4.1. Test environment and mode
Operating Environment:
Condition

Conducted Emission

Radiated Emission

Temperature:25.0 C

25.0 C

Humidity:

55 % RH

55 % RH

Atmospheric Pressure:1010 mbar

1010 mbar

Test Mode:
Engineering mode:

Keep the EUT in continuous transmitting by selectchannel and modulations with Fully-charged battery
The sample was placed 0.8m & 1.5m for the measurement below & above 1GHz
above the ground plane of 3m chamber. Measurements in both horizontal and verticalpolarities were performed. During the test, each emission was maximized by: having
the EUT continuously working, investigated all operating modes, rotated about all 3
axis (X, Y & Z) and considered typical configuration to obtain worst position,
manipulating interconnecting cables, rotating the turntable, varying antenna heightfrom 1m to 4m in both horizontal and vertical polarizations. The emissions
worst-case( Z axis) are shown in Test Results of the following pages.
We have verified the construction and function in typical operation. All the test modes
were carried out with the EUT in transmitting operation, which was shown in this test
report and defined as follows:
Per-scan all kind of data rate in lowest channel, and found the follow list which it
was worst case.
Mode
Data rate
802.11b (SISO)

1Mbps

802.11g (SISO)

6Mbps

802.11n(H20) (MIMO)

6.5Mbps802.11n(H40) (MIMO)

13.5Mbps

Final Test Mode:
Operation mode:

Keep the EUT in continuous transmittingwith modulation
1. For WIFI function, the engineering test program was provided and enabled to make
EUT continuous transmit/receive.
2.According to ANSI C63.10 standards, the test results are both the “worst case” and“worst setup” 1Mbps for 802.11b, 6Mbps for 802.11g, 6.5Mbps for 802.11n(H20),
13.5Mbps for 802.11(H40). Duty cycle setting during the transmission is 98.46% withmaximum power setting for all modulations.

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4.2. Description of Support Units
The EUT has been tested as an independent unit together with other necessary
accessories or support units. The following support units or accessories were used toform a representative test configuration during the tests.
Equipment

Model No.

Serial No.

FCC ID

Trade Name

LaptopThinkPad T430

PO1908049/

LenovoAC Adapter

92P1154

11S92P1154Z1ZDXP7CL957/

LenovoNote:
1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during the test.
2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the intendeduse.
3. For conducted measurements (Output Power, 6dB Emission Bandwidth, Power Spectral Density, Spurious
Emissions), the antenna of EUT is connected to the test equipment via temporary antenna connector, theantenna connector is soldered on the antenna port of EUT, and the temporary antenna connector is listed in the
Test Instruments.

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5.

Facilities and Accreditations

5.1. Facilities
The test facility is recognized, certified, or accredited by the following organizations:● FCC - Registration No.: 645098
Shenzhen Tongce Testing Lab
The 3m Semi-anechoic chamber has been registered and fully described in a reportwith the (FCC) Federal Communications Commission. The acceptance letter from the
FCC is maintained in our files.
● IC - Registration No.: 10668A-1
The 3m Semi-anechoic chamber of Shenzhen TCT Testing Technology Co., Ltd. has
been registered by Certification and Engineering Bureau of Industry Canada for radio
equipment testing

5.2. Location
Shenzhen Tongce Testing Lab.
Address: 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District,
Shenzhen, Guangdong, China
TEL: +86-755-27673339

5.3. Measurement Uncertainty
The reported uncertainty of measurement y ± U, where expended uncertainty U is basedon a standard uncertainty multiplied by a coverage factor of k=2, providing a level ofconfidence of approximately 95 %.
No.

Item

MU

1

Conducted Emission±2.56dB2

RF power, conducted±0.12dB3

Spurious emissions, conducted±0.11dB4

All emissions, radiated(<1G)±3.92dB5

All emissions, radiated(>1G)±4.28dB

6

Temperature±0.1°C

7

Humidity±1.0%

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6.

Test Results and Measurement Data

6.1. Antenna requirement
Standard requirement:

FCC Part15 C Section 15.203 /247(c)15.203 requirement:
An intentional radiator shall be designed to ensure that no antenna other than thatfurnished by the responsible party shall be used with the device. The use of apermanently attached antenna or of an antenna that uses a unique coupling to theintentional radiator, the manufacturer may design the unit so that a broken antenna
can be replaced by the user, but the use of a standard antenna jack or electricalconnector is prohibited.
15.247(c) (1)(i) requirement:(i) Systems operating in the 2400-2483.5 MHz band that is used exclusively for fixed.
Point-to-point operations may employ transmitting antennas with directional gain
greater than 6dBi provided the maximum conducted output power of the intentionalradiator is reduced by 1 dB for every 3 dB that the directional gain of the antenna
exceeds 6dBi.
E.U.T Antenna:
The EUT has three external antennas, and the best case gains of each antenna is
3dBi. The antenna use a unique connector to the intentional radiator.

Antenna

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6.2. Conducted Emission
6.2.1. Test Specification
Test Requirement:

FCC Part15 C Section 15.207

Test Method:

ANSI C63.10:2013

Frequency Range:

150 kHz to 30 MHz

Receiver setup:

RBW=9 kHz, VBW=30 kHz, Sweep time=auto

Limits:Frequency range(MHz)
0.15-0.5
0.5-5
5-30

Limit (dBuV)
Quasi-peak
Average66 to 56*
56 to 46*
56
46
60
50

Test Setup:

Test Mode:

Charging + transmitting with modulation

Test Procedure:

1. The E.U.T is connected to the main power through aline impedance stabilization network (L.I.S.N.). This
provides a 50ohm/50uH coupling impedance for themeasuring equipment.
2. The peripheral devices are also connected to the main
power through a LISN that provides a 50ohm/50uH
coupling impedance with 50ohm termination. (Pleaserefer to the block diagram of the test setup andphotographs).
3. Both sides of A.C. line are checked for maximum
conducted interference. In order to find the maximum
emission, the relative positions of equipment and all of
the interface cables must be changed according to
ANSI C63.10: 2013 on conducted measurement.

Test Result:

PASS

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6.2.2. Test Instruments
Conducted Emission Shielding Room Test Site (843)
Equipment

Manufacturer

Model

Serial Number Calibration Due

Test Receiver

R&S

ESPI

101402

Jul. 29, 2020

LISN

Schwarzbeck

NSLK 8126

8126453

Sep. 11, 2020

Coax cable(9KHz-30MHz)

TCT

CE-05

N/A

Sep. 08, 2020

EMI Test Software

ShurpleTechnology

EZ-EMC

N/A

N/A

Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable
to international system unit (SI).

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6.2.3. Test data
Please refer to following diagram for individual
Conducted Emission on Line Terminal of the power line (150 kHz to 30MHz)

Note:
Freq. = Emission frequency in MHz
Reading level (dBµV) = Receiver reading
Corr. Factor (dB) = LISN factor + Cable loss
Measurement (dBµV) = Reading level (dBµV) + Corr. Factor (dB)
Limit (dBµV) = Limit stated in standard
Margin (dB) = Measurement (dBµV) – Limits (dBµV)
Q.P. =Quasi-Peak
AVG =average* is meaning the worst frequency has been tested in the frequency range 150 kHz to 30MHz.

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Conducted Emission on Neutral Terminal of the power line (150 kHz to 30MHz)

Note:
Freq. = Emission frequency in MHz
Reading level (dBµV) = Receiver reading
Corr. Factor (dB) = LISN factor + Cable loss
Measurement (dBµV) = Reading level (dBµV) + Corr. Factor (dB)
Limit (dBµV) = Limit stated in standard
Margin (dB) = Measurement (dBµV) – Limits (dBµV)
Q.P. =Quasi-Peak
AVG =average* is meaning the worst frequency has been tested in the frequency range 150 kHz to 30MHz.

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6.3. Maximum Conducted Output Power
6.3.1. Test Specification
Test Requirement:

FCC Part15 C Section 15.247 (b)(3)

Test Method:

KDB 558074 D01 v05r02, KDB662911 D01 v02r01

Limit:

30dBm

Test Setup:

Test Mode:

Transmitting mode with modulation

Test Procedure:

1. The RF output of EUT was connected to the power
meter by RF cable and attenuator. The path loss wascompensated to the results for each measurement.
2. Set to the maximum power setting and enable the
EUT transmit continuously.
3. Measure the conducted output power and record theresults in the test report.

Test Result:PASS

6.3.2. Test Instruments
RF Test Room
Equipment

Manufacturer

Model

Serial Number Calibration DuePower Meter

Agilent

E4418B

GB43312526

Sep. 08, 2020

Power Sensor

Agilent

E9301A

MY41497725

Sep. 08, 2020

RF Cable(9KHz-26.5GHz)

TCT

RE-06

N/A

Sep. 11, 2020

Antenna Connector

TCT

RFC-01

N/A

Sep. 11, 2020

Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable tointernational system unit (SI).

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6.3.3. Test Data
Configuration IEEE 802.11b/ Antenna 0+Antenna 1
Maximum Conducted
Output Power (dBm)
Test channel
Limit (dBm)
Antenna 0
Antenna 1 Antenna 2

ResultLowest

24.56

24.87

24.50

30

PASS

Middle

24.18

24.47

24.74

30

PASS

Highest

24.65

24.11

24.45

30

PASS

Limit (dBm)

ResultConfiguration IEEE 802.11g/ Antenna 0+Antenna 1
Maximum Conducted
Output Power (dBm)
Test channel
Antenna 0
Antenna 1 Antenna 2
Lowest

20.73

21.28

21.01

30

PASS

Middle

21.84

21.04

21.58

30

PASS

Highest

21.57

20.89

21.26

30

PASS

Configuration IEEE 802.11n(H20)/ Antenna 0+Antenna 1
Maximum Conducted
Output Power (dBm)
Test channel
Antenna 0
Antenna 1 Antenna 2

Total

Limit
(dBm)

ResultLowest

20.75

21.08

21.06

25.74

30

PASS

Middle

20.88

20.97

21.52

25.90

30

PASS

Highest

20.69

20.79

21.24

25.68

30

PASS

Limit
(dBm)

ResultConfiguration IEEE 802.11n(H40)/ Antenna 0+Antenna 1
Maximum Conducted
Output Power (dBm)
Test channel
Antenna 0
Antenna 1 Antenna 2

Total

Lowest

20.24

20.82

20.94

25.45

30

PASS

Middle

20.29

20.70

20.94

25.42

30

PASS

Highest

20.25

20.44

21.05

25.36

30

PASS

Refer to KDB 662911 D01 Multiple Transmitter Output v02r01:
For power measurements on IEEE 802.11 devices,
Array Gain = 0 dB (i.e., no array gain) for NANT ≤ 4;
Array Gain = 0 dB (i.e., no array gain) for channel widths ≥ 40 MHz for any NANT;
Array Gain = 5 log(NANT/NSS) dB or 3 dB, whichever is less, for 20-MHz channel widths with NANT ≥ 5.
Directional gain = Gant + Array Gain = 3dBi, so limit of conducted output power is 1W(30dBm)

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6.4. Emission Bandwidth
6.4.1. Test Specification
Test Requirement:

FCC Part15 C Section 15.247 (a)(2)Test Method:

KDB 558074 D01 v05r02

Limit:>500kHz

Test Setup:

Test Mode:

Transmitting mode with modulation

Test Procedure:

1. Set to the maximum power setting and enable the
EUT transmit continuously.
2. Make the measurement with the spectrum analyzer's
resolution bandwidth (RBW) = 100 kHz. Set theVideo bandwidth (VBW) = 300 kHz. In order to makean accurate measurement. The 6dB bandwidth must
be greater than 500 kHz.
3. Measure and record the results in the test report.

Test Result:PASS

6.4.2. Test Instruments
RF Test Room
Equipment

Manufacturer

Model

Serial Number Calibration Due

Spectrum Analyzer

Agilent

N9020A

MY49100619

Sep. 11, 2020

RF Cable(9KHz-26.5GHz)

TCT

RE-06

N/A

Sep. 11, 2020

Antenna Connector

TCT

RFC-01

N/A

Sep. 11, 2020

Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable tointernational system unit (SI).

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6.5. Power Spectral Density
6.5.1. Test Specification
Test Requirement:

FCC Part15 C Section 15.247 (e)Test Method:

KDB 558074

Limit:

The average power spectral density shall not be greaterthan 8dBm in any 3kHz band at any time interval ofcontinuous transmission.

Test Setup:

Test Mode:

Transmitting mode with modulation

Test Procedure:

1. The RF output of EUT was connected to the spectrum
analyzer by RF cable and attenuator. The path loss
was compensated to the results for eachmeasurement.
2. Set to the maximum power setting and enable the
EUT transmit continuously.
3. Make the measurement with the spectrum analyzer's
resolution bandwidth (RBW): 3 kHz ≤ RBW ≤ 100
kHz. Video bandwidth VBW ≥ 3 x RBW. Set the span
to at least 1.5 times the OBW.
4. Detector = peak, Sweep time = auto couple.
5. Employ max hold trace mode, Use the peak marker
function to determine the maximum power level.
6. Measure and record the results in the test report.

Test Result:PASS

6.5.2. Test Instruments
RF Test Room
Equipment

Manufacturer

Model

Serial Number Calibration Due

Spectrum Analyzer

Agilent

N9020A

MY49100619

Sep. 11, 2020

RF Cable(9KHz-26.5GHz)

TCT

RE-06

N/A

Sep. 11, 2020

Antenna Connector

TCT

RFC-01

N/A

Sep. 11, 2020

Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable tointernational system unit (SI)

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6.5.3.

Test data

Configuration IEEE 802.11b/ Antenna 0, Antenna 1
Peak Power Spectral Density (dBm/3kHz)
Antenna 0

Antenna 1

Antenna 2

Limit(dBm/3kHz)

Lowest

4.70

2.55

2.86

8

PASS

Middle

1.67

1.29

2.88

8

PASS

Highest

1.66

0.85

1.32

8

PASS

Result

Test channel

ResultConfiguration IEEE 802.11g/ Antenna 0, Antenna 1
Peak Power Spectral Density (dBm/3kHz)
Antenna 0

Antenna 1

Antenna 2

Limit(dBm/3kHz)

Lowest

-2.64

-1.80

-1.98

8

PASS

Middle

-2.11

-1.72

-2.45

8

PASS

Highest

-2.02

-3.74

-1.79

8

PASS

Test channel

Configuration IEEE 802.11n (HT20)/ Antenna 0, Antenna 1
Test channel

Peak Power Spectral Density (dBm/3kHz)
Antenna 0

Antenna 1 Antenna 2

Total

Limit
(dBm/3kHz)

ResultLowest

-2.86

-2.17

-2.41

2.30

6.23

PASS

Middle

-3.21

-1.64

-1.80

2.61

6.23

PASS

Highest

-2.91

-3.18

-2.22

2.02

6.23

PASS

Total

Limit
(dBm/3kHz)

ResultConfiguration IEEE 802.11n (HT40)/ Antenna 0, Antenna 1
Test channel

Peak Power Spectral Density (dBm/3kHz)
Antenna 0

Antenna 1 Antenna 2

Lowest-6.64-15.47

-5.54

-2.80

6.23

PASS

Middle

-6.48

-6.27

-4.48

-0.88

6.23

PASS

Highest

-5.92

-6.23

-5.77

-1.20

6.23

PASS

Refer to KDB 662911 D01 Multiple Transmitter Output v02r01:
For power spectral density (PSD) measurements on all devices,
Array Gain = 10 log(NANT/NSS) dB.
Directional gain = Gant + Array Gain = 7.77dBi, so limit of power spectral density is 8-(7.77-6) = 6.23

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6.6. Conducted Band Edge and Spurious Emission Measurement
6.6.1. Test Specification
Test Requirement:

FCC Part15 C Section 15.247 (d)Test Method:

KDB558074

Limit:In any 100 kHz bandwidth outside of the authorized
frequency band, the emissions which fall in the
non-restricted bands shall be attenuated at least 20 dB /30dB relative to the maximum PSD level in 100 kHz by
RF conducted measurement and radiated emissions
which fall in the restricted bands, as defined in Section
15.205(a), must also comply with the radiated emission
limits specified in Section 15.209(a).

Test Setup:

Test Mode:

Transmitting mode with modulation

Test Procedure:

1. The RF output of EUT was connected to the spectrum
analyzer by RF cable and attenuator. The path loss
was compensated to the results for eachmeasurement.
2. Set to the maximum power setting and enable the
EUT transmit continuously.
3. Set RBW = 100 kHz, VBW=300 kHz, Peak Detector.
Unwanted Emissions measured in any 100 kHz
bandwidth outside of the authorized frequency bandshall be attenuated by at least 20 dB relative to the
maximum in-band peak PSD level in 100 kHz whenmaximum peak conducted output power procedure isused. If the transmitter complies with the conducted
power limits based on the use of RMS averaging overa time interval, the attenuation required under thisparagraph shall be 30 dB instead of 20 dB per
15.247(d).
4. Measure and record the results in the test report.
5. The RF fundamental frequency should be excluded
against the limit line in the operating frequency band.

Test Result:

PASS

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6.6.2. Test Instruments
RF Test Room
Equipment

Manufacturer

Model

Serial Number Calibration Due

Spectrum Analyzer

Agilent

N9020A

MY49100619

Sep. 11, 2020

RF Cable(9KHz-26.5GHz)

TCT

RE-06

N/A

Sep. 11, 2020

Antenna Connector

TCT

RFC-01

N/A

Sep. 11, 2020

Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable tointernational system unit (SI).

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6.7. Radiated Spurious Emission Measurement
6.7.1. Test Specification
Test Requirement:

FCC Part15 C Section 15.209

Test Method:

ANSI C63.10: 2013

Frequency Range:

9 kHz to 40 GHz

Measurement Distance:

3m

Antenna Polarization:

Horizontal & Vertical

Operation mode:

Transmitting mode with modulation

Receiver Setup:

Frequency
9kHz- 150kHz
150kHz30MHz
30MHz-1GHz
Above 1GHz

Detector
Quasi-peakQuasi-peak

RBW
200Hz
9kHz

VBW
1kHz
30kHz

RemarkQuasi-peak Value
Quasi-peak Value

Quasi-peak
Peak
Peak

120KHz1MHz
1MHz

300KHz
3MHz
10Hz

Quasi-peak Value
Peak Value
Average Value

Frequency

Limit:

0.009-0.490
0.490-1.705
1.705-30
30-88
88-216
216-960
Above 960

Field Strength(microvolts/meter)
2400/F(KHz)
24000/F(KHz)
30
100
150
200
500

Frequency

Field Strength(microvolts/meter)

Above 1GHz

500
5000

Measurement
Distance (meters)
300
30
30
3
3
3
3

Measurement
Distance(meters)33

Detector
AveragePeak

For radiated emissions below 30MHz

Test setup:

30MHz to 1GHz

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Above 1GHz

Test Procedure:

1. For the radiated emission test below 1GHz:
The EUT was placed on a turntable with 0.8 meter
above ground. The EUT was set 3 meters from theinterference receiving antenna, which was mounted
on the top of a variable height antenna tower. The
EUT was arranged to its worst case and then tune
the antenna tower (from 1 m to 4 m) and turntable(from 0 degree to 360 degrees) to find the maximum
reading. A pre-amp and a high PASS filter are used
for the test in order to get better signal level.
For the radiated emission test above 1GHz:
Place the measurement antenna on a turntable with
1.5 meter above ground, which is away from eacharea of the EUT determined to be a source ofemissions at the specified measurement distance,
while keeping the measurement antenna aimed at
the source of emissions at each frequency ofsignificant emissions, with polarization oriented for
maximum response. The measurement antenna
may have to be higher or lower than the EUT,
depending on the radiation pattern of the emission
and staying aimed at the emission source forreceiving the maximum signal. The final
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Test results:

measurement antenna elevation shall be that which
maximizes the emissions. The measurement
antenna elevation for maximum emissions shall be
restricted to a range of heights of from 1 m to 4 m
above the ground or reference ground plane.
3. Corrected Reading: Antenna Factor + Cable Loss +Read Level - Preamp Factor = Level
4. For measurement below 1GHz, If the emission levelof the EUT measured by the peak detector is 3 dBlower than the applicable limit, the peak emission
level will be reported. Otherwise, the emission
measurement will be repeated using the quasi-peakdetector and reported.
5. Use the following spectrum analyzer settings:(1) Span shall wide enough to fully capture theemission being measured;(2) Set RBW=120 kHz for f < 1 GHz; VBW ≥ RBW;
Sweep = auto; Detector function = peak; Trace =max hold;(3) Set RBW = 1 MHz, VBW= 3MHz for f >1 GHz forpeak measurement.
For average measurement: VBW = 10 Hz, when
duty cycle is no less than 98 percent. VBW ≥ 1/T,
when duty cycle is less than 98 percent where T is
the minimum transmission duration over which thetransmitter is on and is transmitting at its maximum
power control level for the tested mode of operation.
PASS

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6.7.2. Test Instruments
Radiated Emission Test Site (966)Name of
Equipment

Manufacturer

Model

SerialNumberCalibration Due

Test Receiver

ROHDE&SCHW
ARZ

ESIB7

100197

Jul. 29, 2020

Spectrum Analyzer

ROHDE&SCHW
ARZ

FSQ40

200061

Sep. 11, 2020

Pre-amplifier

EM Electronics
Corporation
CO.,LTD

EM3026507032613

Sep. 08, 2020

Pre-amplifier

HP

8447D

2727A05017

Sep. 08, 2020

Loop antenna

ZHINANZN30900A

12024

Oct. 27, 2020

Broadband Antenna

Schwarzbeck

VULB9163

340

Sep. 06, 2020

Horn Antenna

Schwarzbeck

BBHA 9120D

631

Sep. 06, 2020

Horn Antenna

A-INFO

Antenna Mast

Keleto

RE-AM

N/A

N/A

Coax cable(9KHz-40GHz)

TCT

RE-high-02

N/A

Sep. 08, 2020

Coax cable(9KHz-40GHz)

TCT

RE-high-04

N/A

Sep. 08, 2020

EMI Test Software

ShurpleTechnology

EZ-EMC

N/A

N/A

LB-180400-KF J211020657

Sep. 06, 2020

Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable tointernational system unit (SI).

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6.7.3. Test Data
Please refer to following diagram for individual
Below 1GHz

Horizontal:

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Vertical:

Note: 1.The low frequency, which started from 9KHz~30MHz, was pre-scanned and the result which was 20dB lower thanthe limit line per 15.31(o) was not reported
2. Measurements were conducted in all three channels (high, middle, low) and all modulation(802.11b, 802.11g,
802.11n(HT20), 802.11n(HT40) ), and the worst case Mode (Lowest channel and 802.11b) was submitted only.
3. Freq. = Emission frequency in MHz
Measurement (dBµV/m) = Reading level (dBµV) + Corr. Factor (dB)Correction Factor= Antenna Factor + Cable loss – Pre-amplifier
Limit (dBµV/m) = Limit stated in standard
Margin (dB) = Measurement (dBµV/m) – Limits (dBµV/m)
Any value more than 10dB below limit have not been specifically reported* is meaning the worst frequency has been tested in the test frequency range

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Test Result of Radiated Spurious at Band edges
Lowest channel 802.11n CH1:
Horizontal:
2390MHz ~ 2400MHz

Frequency
2390
2400

Reading level (dBuV/m) (RBW=100KHz)
56.84
57.30

Limit(dBuV/m)
74
74

Verdict
Pass
Pass

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Horizontal:
2310MHz ~ 2390MHz

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Vertical:
2390MHz ~ 2400MHz

Frequency
2390
2400

Reading level(dBuV/m) (RBW=100KHz)
43.27
55.50

Limit(dBuV/m)
74
74

Verdict
Pass
Pass

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Vertical:
2310MHz ~ 2390MHz

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Highest channel 802.11n CH11:
Horizontal:

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Vertical:

Note:
1.
2.
3.

Peak Final Emission Level=Peak Reading + Correction Factor;
Correction Factor= Antenna Factor + Cable loss – Pre-amplifier
Measurements were conducted in all modulation(802.11b, 802.11g, 802.11n(HT20), 802.11n(HT40) ), and theworst case (802.11n(HT20) in MIMO mode was submitted only.

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Test Result of Radiated Spurious at harmonic frequencies

4824
7236
---

H
H
H

Modulation Type: 802.11b
Low channel: 2412 MHz
Emission Level
Peak AV reading Correction
Peak limit AV limit
reading
FactorPeak
AV(dBuV)(dBµV)(dB/m) (dBµV/m) (dBµV/m) (dBµV/m) (dBµV/m)
47.54--0.75
48.29
--74
54
36.78
--9.87
46.65
--74
54
---------------

4824
7236
---

V
V
V

44.82
35.16
---

Frequency Ant. Pol.
(MHz)
H/V

-------

0.75
9.87
---

45.57
45.03
---

-------

74
74
---

54
54
---

4874
7311
---

H
H
H

Middle channel: 2437MHz
Emission Level
Peak
Correction
AV reading
Peak limit AV limit
reading
FactorPeak
AV(dBµV)(dBµV/m) (dBµV/m)(dBµV)(dB/m) (dBµV/m) (dBµV/m)
46.06--0.97
47.03
--74
54
34.88
--9.83
44.71
--74
54
---------------

4874
7311
---

V
V
V

48.61
37.28
---

Frequency Ant. Pol.
(MHz)
H/V

-------

0.97
9.83
---

49.58
47.11
---

--------

74
74
---

54
54
---

4924
7386
---

H
H
H

High channel: 2462 MHz
Emission Level
Peak AV reading Correction
Peak limit AV limit
reading
FactorPeak
AV(dBµV)(dBµV)(dB/m) (dBµV/m) (dBµV/m) (dBµV/m) (dBµV/m)
45.51--1.18
46.69
--74
54
34.32
--10.07
44.39
--74
54
---------------

4924
7386
---

V
V
V

47.99
38.42
---

Frequency Ant. Pol.
(MHz)
H/V

-------

1.18
10.07
---

49.17
48.49
---

-------

74
74
---

54
54
---

Margin
(dB)
-5.71
-7.35
---8.43-8.97---

Margin
(dB)
-6.97
-9.29
---4.42-6.89---

Margin
(dB)
-7.31
-9.61
---4.83
-5.51
---

Note:
1.
2.
3.
4.
5.
6.

Emission Level=Peak Reading + Correction Factor; Correction Factor= Antenna Factor + Cable loss – Pre-amplifier
Margin (dB) = Emission Level (Peak) (dBµV/m)-Average limit (dBµV/m)
The emission levels of other frequencies are very lower than the limit and not show in test report.
Measurements were conducted from 1 GHz to the 10th harmonic of highest fundamental frequency. The highest test
frequency is 25GHz.
Data of measurement shown “---“in the above table mean that the reading of emissions is attenuated more than 20 dB
below the limits or the field strength is too small to be measured.
802.11b is SISO mode and the worst case Antenna (ANT0) was submitted only.

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4824
7236
---

H
H
H

Modulation Type: 802.11g
Low channel: 2412 MHz
Emission Level
Peak
Correction
Peak limit AV limit
reading AV reading Factor
Peak
AV(dBuV)(dBµV/m) (dBµV/m)(dBµV)(dB/m) (dBµV/m) (dBµV/m)
45.74--0.75
46.49
--74
54
34.69
--9.87
44.56
--74
54
---------------

4824
7236
---

V
V
V

46.61
35.42
---

Frequency Ant. Pol.
(MHz)
H/V

-------

0.75
9.87
---

47.36
45.29
---

-------

74
74
---

54
54
---

4874
7311
---

H
H
H

Middle channel: 2437MHz
Emission Level
Peak AV reading Correction
Peak limit AV limit
reading
FactorPeak
AV(dBµV)(dBµV)(dB/m) (dBµV/m) (dBµV/m) (dBµV/m) (dBµV/m)
44.55--0.97
45.52
--74
54
35.13
--9.83
44.96
--74
54
---------------

4874
7311
---

V
V
V

47.47
38.22
---

Frequency Ant. Pol.
(MHz)
H/V

-------

0.97
9.83
---

48.44
48.05
---

--------

74
74
---

54
54
---

4924
7386
---

H
H
H

High channel: 2462 MHz
Emission Level
Peak
Correction
Peak limit AV limit
reading AV reading Factor
Peak
AV(dBµV)(dBµV/m) (dBµV/m)(dBµV)(dB/m) (dBµV/m) (dBµV/m)
43.78--1.18
44.96
--74
54
34.25
--10.07
44.32
--74
54
---------------

4924
7386
---

V
V
V

47.04
36.51
---

Frequency Ant. Pol.
(MHz)
H/V

-------

1.18
10.07
---

48.22
46.58
---

-------

74
74
---

54
54
---

Margin
(dB)
-7.51
-9.44
---6.64-8.71---

Margin
(dB)
-8.48
-9.04
---5.56-5.95---

Margin
(dB)
-9.04
-9.68
---5.78
-7.42
---

Note:
1.
2.
3.
4.
5.
6.

Emission Level=Peak Reading + Correction Factor; Correction Factor= Antenna Factor + Cable loss – Pre-amplifier
Margin (dB) = Emission Level (Peak) (dBµV/m)-Average limit (dBµV/m)
The emission levels of other frequencies are very lower than the limit and not show in test report.
Measurements were conducted from 1 GHz to the 10th harmonic of highest fundamental frequency. The highest test
frequency is 25GHz.
Data of measurement shown “---“in the above table mean that the reading of emissions is attenuated more than 20 dB
below the limits or the field strength is too small to be measured.
802.11g is SISO mode and the worst case Antenna (ANT0) was submitted only.

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4824
7236
---

H
H
H

Modulation Type: 802.11n (HT20)
Low channel: 2412 MHz
Emission Level
Peak
Correction
Peak limit AV limit
reading AV reading Factor
Peak
AV(dBuV)(dBµV/m) (dBµV/m)(dBµV)(dB/m) (dBµV/m) (dBµV/m)
44.58--0.75
45.33
--74
54
35.21
--9.87
45.08
--74
54
---------------

4824
7236
---

V
V
V

44.63
34.17
---

Frequency Ant. Pol.
(MHz)
H/V

-------

0.75
9.87
---

45.38
44.04
---

-------

74
74
---

54
54
---

4874
7311
---

H
H
H

Middle channel: 2437MHz
Emission Level
Peak AV reading Correction
Peak limit AV limit
reading
FactorPeak
AV(dBµV)(dBµV)(dB/m) (dBµV/m) (dBµV/m) (dBµV/m) (dBµV/m)
46.11--0.97
47.08
--74
54
35.62
--9.83
45.45
--74
54
---------------

4874
7311
---

V
V
V

45.27
36.46
---

Frequency Ant. Pol.
(MHz)
H/V

-------

0.97
9.83
---

46.24
46.29
---

--------

74
74
---

54
54
---

4924
7386
---

H
H
H

High channel: 2462 MHz
Emission Level
Peak
Correction
Peak limit AV limit
reading AV reading Factor
Peak
AV(dBµV)(dBµV/m) (dBµV/m)(dBµV)(dB/m) (dBµV/m) (dBµV/m)
43.95--1.18
45.13
--74
54
34.51
--10.07
44.58
--74
54
---------------

4924
7386
---

V
V
V

45.54
36.14
---

Frequency Ant. Pol.
(MHz)
H/V

-------

1.18
10.07
---

46.72
46.21
---

-------

74
74
---

54
54
---

Margin
(dB)
-8.67
-8.92
---8.62-9.96---

Margin
(dB)
-6.92
-8.55
---7.76-7.71---

Margin
(dB)
-8.87
-9.42
---7.28
-7.79
---

Note:
1.
2.
3.
4.
5.
6.

Emission Level=Peak Reading + Correction Factor; Correction Factor= Antenna Factor + Cable loss – Pre-amplifier
Margin (dB) = Emission Level (Peak) (dBµV/m)-Average limit (dBµV/m)
The emission levels of other frequencies are very lower than the limit and not show in test report.
Measurements were conducted from 1 GHz to the 10th harmonic of highest fundamental frequency. The highest test
frequency is 25GHz.
Data of measurement shown “---“in the above table mean that the reading of emissions is attenuated more than 20 dB
below the limits or the field strength is too small to be measured.
802.11n(HT20) is MIMO mode.

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4844
7266
---

H
H
H

Modulation Type: 802.11n (HT40)
Low channel: 2422 MHz
Emission Level
Peak
Correction
Peak limit AV limit
reading AV reading Factor
Peak
AV(dBuV)(dBµV/m) (dBµV/m)(dBµV)(dB/m) (dBµV/m) (dBµV/m)
46.88--0.75
47.63
--74
54
35.34
--9.87
45.21
--74
54
---------------

4824
7236
---

V
V
V

43.76
34.13
---

Frequency Ant. Pol.
(MHz)
H/V

-------

0.75
9.87
---

44.51
44.00
---

-------

74
74
---

54
54
---

4874
7311
---

H
H
H

Middle channel: 2437MHz
Emission Level
Peak AV reading Correction
Peak limit AV limit
reading
FactorPeak
AV(dBµV)(dBµV)(dB/m) (dBµV/m) (dBµV/m) (dBµV/m) (dBµV/m)
45.45--0.97
46.42
--74
54
35.83
--9.83
45.66
--74
54
---------------

4874
7311
---

V
V
V

44.98
35.04
---

Frequency Ant. Pol.
(MHz)
H/V

-------

0.97
9.83
---

45.95
44.87
---

--------

74
74
---

54
54
---

4904
7356
---

H
H
H

High channel: 2452 MHz
Emission Level
Peak
Correction
Peak limit AV limit
reading AV reading Factor
Peak
AV(dBµV)(dBµV/m) (dBµV/m)(dBµV)(dB/m) (dBµV/m) (dBµV/m)
43.97--1.18
45.15
--74
54
33.11
--10.07
43.18
--74
54
---------------

4904
7356
---

V
V
V

45.76
36.33
---

Frequency Ant. Pol.
(MHz)
H/V

-------

1.18
10.07
---

46.94
46.40
---

-------

74
74
---

54
54
---

Margin
(dB)
-6.37
-8.79
---9.49-10.00---Margin
(dB)
-7.58
-8.34
---8.05-9.13---

Margin(dB)-8.85-10.82---7.06
-7.60
---

Note:
1. Emission Level=Peak Reading + Correction Factor; Correction Factor= Antenna Factor + Cable loss – Pre-amplifier
2. Margin (dB) = Emission Level (Peak) (dBµV/m)-Average limit (dBµV/m)
3. The emission levels of other frequencies are very lower than the limit and not show in test report.
4. Measurements were conducted from 1 GHz to the 10th harmonic of highest fundamental frequency. The highest test
frequency is 25GHz.
5. Data of measurement shown “---“in the above table mean that the reading of emissions is attenuated more than 20 dB
below the limits or the field strength is too small to be measured.
6. 802.11n(HT40) is MIMO mode.

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Appendix A: Test Result of Conducted Test
DTS Bandwidth
Test Result
TestMode

11B

11G

11N20SISO

11N40SISO

Antenna

ChannelDTS BW [MHz]FL [MHz]FH [MHz]

Limit [MHz]Verdict

Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2
Ant0
Ant1
Ant2

2412
2412
2412
2437
2437
2437
2462
2462
2462
2412
2412
2412
2437
2437
2437
2462
2462
2462
2412
2412
2412
2437
2437
2437
2462
2462
2462
2422
2422
2422
2437
2437
2437
2452
2452
2452

10.16010.1209.720
10.16010.16010.16010.12010.12010.08016.60016.60016.64016.64016.64016.64016.64016.60016.60017.88017.84017.80017.88017.88017.84017.80017.80017.76036.64036.72036.72036.72036.64036.64036.80036.64036.7202406.920
2406.960
2407.360
2431.920
2431.920
2431.920
2456.960
2456.920
2456.960
2403.720
2403.720
2403.680
2428.680
2428.680
2428.680
2453.680
2453.680
2453.720
2403.040
2403.080
2403.1202428.080
2428.040
2428.1202453.080
2453.1202453.1202403.680
2403.680
2403.680
2418.680
2418.680
2418.680
2433.600
2433.680
2433.680

2417.080
2417.080
2417.080
2442.080
2442.080
2442.080
2467.080
2467.040
2467.040
2420.320
2420.320
2420.3202445.3202445.3202445.320
2470.320
2470.280
2470.320
2420.920
2420.920
2420.920
2445.960
2445.920
2445.960
2470.880
2470.920
2470.880
2440.320
2440.400
2440.400
2455.400
2455.3202455.320
2470.400
2470.320
2470.400

0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5

PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS

Page 38 of 138

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Test Graphs
11B_Ant0_2412

11B_Ant1_2412

11B_Ant2_2412

Page 39 of 138

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11B_Ant0_2437

11B_Ant1_2437

11B_Ant2_2437

Page 40 of 138

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11B_Ant0_2462

11B_Ant1_2462

11B_Ant2_2462

Page 41 of 138

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11G_Ant0_2412

11G_Ant1_2412

11G_Ant2_2412

Page 42 of 138

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11G_Ant0_2437

11G_Ant1_2437

11G_Ant2_2437

Page 43 of 138

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11G_Ant0_2462

11G_Ant1_2462

11G_Ant2_2462

Page 44 of 138

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11N20SISO_Ant0_2412

11N20SISO_Ant1_2412

11N20SISO_Ant2_2412

Page 45 of 138

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11N20SISO_Ant0_2437

11N20SISO_Ant1_2437

11N20SISO_Ant2_2437

Page 46 of 138

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11N20SISO_Ant0_2462

11N20SISO_Ant1_2462

11N20SISO_Ant2_2462

Page 47 of 138

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11N40SISO_Ant0_2422

11N40SISO_Ant1_2422

11N40SISO_Ant2_2422

Page 48 of 138

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11N40SISO_Ant0_2437

11N40SISO_Ant1_2437

11N40SISO_Ant2_2437

Page 49 of 138

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11N40SISO_Ant0_2452

11N40SISO_Ant1_2452

11N40SISO_Ant2_2452

Page 50 of 138

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