Evening star., 1924-03-22
RADIO NEWS

A complete concert by the Nor1ica
Mandolin, Banjo and Guitar Club, under
the direction Of Walter T. Holt, is the
stellar attraction on the program tonight
of WRC. The full p1ectral orchestra
will play the more pretentious numbers,
while the larger part Of the program
will be in sections performing Hawaiian
music, solos on mandolin, banjo and
guitar, with duets and novelties by
many members of the banjo and man.
dolin clubs.
Miss Frances Robinson of the Radio
Corporation of America, who is giving
demonstrations at the radio show at
Convention Hall on the manufacture OF
radiofrons, will give a timely talk on
Questions Asked at the Show
A prize Of $500 in gold has been of
Tered for the best answer to the uues-
ton. Who is to pay for bruadcasting?'
rms contest was announced today by
offices in New York
Aured nj. Caddell, secretary of the
organization, declared that the terms of
the competition are sirnple enough to
permit any one interested in radio to
enter. The contest is open to any rest
dent of the United states, man, woman
or cnlld. Affiliation with the radio in
dustry is no bar. Fifteen hundred words
Is suggested as limit, and entrants are
Requested TO submit their proposals type
written and double-spaced
TO serve as a standard of radio
frequency, the bureau of standards
has two especially constructed wave
meters covering the freQuencies in
more general use from Is to 1000
klI0cVnleS er
meters). These standard wavemeters
are used in celebrating wavemeters
belonging to the radia inspection
service, manufacturers. colleges or
others in need of standards of fire.
quency in radio measurements and
In adjusting the radio transmitting
set which is used to transmit stand
ard frequency signals.
Each standard wavemeter consists
or a variable air condenser of special
design -four fixed mica condensers a
number of INTERCHANGEABLE inductors
or coils, and a resonance indicating
device. The majority of the inductors
are wound with high-frequency cable
in single layer upon "A skeleton
frame of laminated phenoifc insulat-
ing material, sometimes called bake
lite.
The wayemeter is tuned TO a source
of radio-frequency currents by vary
ing the air condenser and obtaining
the maximum DETECTION OF an indi-
eating instrument which is connected
to two turns of wire and loosely cou-
pied to the inductor in the wave
meter circuit. Either of two indi-
eating instruments may be used, a
thermogalvanometer or a d. c. militia
meter and crystal detector. The d. c.
milliam eter and crystal detector are
used when more accurate indications
are desired than are possible with
the thermOgalYanOme
The Southern New England Textile
Club is holding meeting this aft
ernoon in the Providence-B Biltmore
Hotel. Providence. r. J., the proceed
ings Of which viii! be broadcast
through station WAR. The program.
which begins at o'clock, Will feature
orchestral, vocal and chorus singing
numbers.
j. C.. B. writes that he was listen
fng-in Thursday morning, shortly be-
fore o'clock, and heard what he be-
lieves was "a California station. Some
one recited rhyme, he says. and this
was followed with wait Until l Tune
My Harp" He asks whether any
reader of this column can identify
the station. He is the owner of
two-tUbe set.
NJ. p says that about s o'clock
every evening the fans in Brightwood
are disturbed, PROVOKED, etc, Oy some
one, somewhere. hroadcasting time
signals. Is there any way by which
this can be stopped
Yes. this can be stopped very quick
ly if the amateur sending is violating
the regulations under which he holds
q license. You easily can tell. for eX-
ample, whether he is sending on a
wave length in excess to the one to
which he is limited. The governments
radio inspectors would take action IL
d violation of this sort were reported.
GRANT SMITH. 1927 18th street
sends the following letter
TO the radio editor:
Last Wednesday morning I picked
up some far-off station about $3.50
o'clock. Davenport, Iowa, had just
signed off when l caught this station.
1t seemed as if there was a regular
e>epiEg business meeting
and the talker was calling off the
Most of them were from California,
Canada and Washington.
Then he talked of Mr.. Finkler, in
Vancouver. He then said that there
read. but as it was rather late they
would do this at the next meeting,
next Tuesday.
"At exactly 1856 O'Clock Wednesday
this station signed off. On
account of the code coming in ] was
unable to clearly get the station let
ters Would YOU or some of your
readers please help me along?"
DR.. Mary Meek Atkeson. special
feature writer, will review Chinese
Lanterns" by Mrs Ernest THOMPSON
Seton, from station WRC Monday
afternoon at 3:15 o'clock. This Is one
of the series of weekly book review
features being conducted under the
auspices of the League of American
Pen Women. Members of the league
again will gather at a radio book