Evening star. [volume] (Washington, D.C.) 1854-1972, 1928-08-07
LONG WAVES seen
AID TO j. S. RADIO
Use of Lower Frequencies
Named as Possible Solution
of PerpIexing Problem.
BY MARTIN CoDEL.

ny MARTIN C0DEL.
New radio hroadcasting bands might
81 orened for the United States on the
lower freouencies, or long waves. thus
mitigating to a degree the perpiexins
problem of fitting a multitude or sta
ficrs 10 only a few wave lengths. This
Is suggested by the large number OF
lonr-wave stations abroad. particularly
in Europe, listed in the newly revised
los Of foreign broadcasting stations
con,uile6 by Lawrence d. BatSon OF the
United States Department OF Com
n,egce, 49,.
r-qr1 treaty, already ratified by the
Senate and effective next January 1,
rertsln bands Of iong-wave channels
nav be used for broadcaSting under
suscfhe6 conditions. These conditions
sre imposed in order to preclude inter
Yerenre with special fixed and mobile
radio services in the same bands.
They are generally regional reS'rlc-
tons.
channels and found them highly ell
fective. especially for daytime recep-
fion American stations might 40 hKe-
Mss. but they never have. The reason
is that few If any, h"'~~ioan raulo
manufacturers have Undertaken 10
build long-wave receiving sets Tor any
hut their export markets. They supply
many of these European countries WITH
their iong-wave receivers.
Except for their simultaneous snort
nave operations. American broaucast-
ers-and that means those IN all coun-
tries of the Americas-have never UNI
cSertaksn to leave the medium wave
hand. from $50 TO l.50o kilocycies t545
10 200 metersl. This band has but 96
nave lengths. with the lo-kilocycle
separation between channels.
Employ Both BANDS.
In Europe on the contrary, stations
Rave since the very beginning OF pro-
gram broadcasting employed both the
medium wave band now used on trie
American continents and certain bands
IF longer waves. In fact, when an
effort was made at the recent interra-
tional radio parley at Washington to
limit all broadcasting to the medium
hand vigorous protest was raised oy
tire delegates from such countries as
Germany. France, Finland and sweden
The result was that the treaty max
ers agreed upon the use Of some cham
nels within the band from $50 to 224
k;lo-vcles $1,000 to 1.S40 meters Tor
b-cadcastang. These are the same waves
that might be opened TO American
b-oadcaSting should market for sets
cclled to tune in the longer waves DC
crsated
TTnless the Federal Radio Commission
end the manufacturers get together IN
en- endeavor to open up this entirely
new market in this country, II Is I'M
lksiv that the long-waGe bands would
he rnpned ND. II is possible, but not
probable. Sets with coils that can tune
in stations on the channels in the
medium band--and there are lew wnien
tal-e in even this whole range OF fire.
otlencies-wouId not be able TO reach
far into the long-wave bands
Listeners thus would have 70 Ouy
sets specially equipped to get special
groups Of stations. Just as . snort
wave receiver cannot tune IN the nor
nal broadcast wave, 50 o long-wave
receiver would not be able to DO 50.
Thus the listener would need set Tor
medium waves and another for the long
waves
In one Of the recent experimental
breakfasts Of the League OF Nations
from POLL. the Dutch station at Koot-
wiik. this type of radio station was
Excused. The announcer said that
the stations in Europe on the wave
lengths above 1000 meters operated
vith relatively high power. ranging
from 10 to 20 kllowatts Their great
value he said, lies II their effective
daytime radiations
Some Foreign Stations.
Some Of these stations are Zeezen,
Germany: Eiffel Tower, Paris: Radio
Paris Ciichy France; Notala, Sweden;
Lahti, FINLAND: Daventry. England:
Eulzen. Holland, and Hilversum and
Huitzen, Holland Incidentally, the an
rouncer spoke on one OF the far-travel-
ing short waves, and asked those
throughout the world who heard him
70 address a card to Geneva and report
on the strength and clarity Of the
signal
He gave some interesting gidelights
on Europes radio. Its peculiar problem
is the proximity of more than 20 ma
tionalities each with distinctive ideals
and separate political administrations
Wireless waves know no frontiers, SO
that much trouble resulted. not only
from radio interference but from ma
tionsi predictions and suspicious.
.i,a Union Internarionaie de Radio
pis1aie w2a accordingly organized as an
un~n3ial contro! agency II brought
cTser ont Of chaos through co-opera-
tive effort Interference was handled
b. a technical committee, which allo-
Gated channels TO the respective cotn-
tries. much as the American Radio
Commission is endeavoring TO allocate
them TO the respective zones.
BatSon's foreign radio log shows
there are 465 broadcasting stations II
ether countries as compared TO the Csc
no~ operating in the United States
OF the 46S Canada has So, Cuba Al
Mexico 20, Argentina q. Brazil IL
Chile 9 and Uruguay IA.
Europe, he showed, Is led by Russia
fn broadcasting, although his list il
obtained from unofficial sources. Rus
STA has IS stations, many Of extremely
high powers. Germany has %, Sweder
81 and Great Britain 20. Australia
said to be as far advanced in radio a.
the United States. has ~ stations. and
New Zealand has s. Japan has 4
Only ! aE listed for China
tcopyrlg4at. 1928