Evening star., 1928-04-05
j. S. TO BUILD MORE
RADIO AIR GUIDES
Commerce Department Lets
Contracts for IL Stations
and 6 BeaconS for Planes.

In the wake Of its announcement that
visual indicators for radio guidance Of
aircraft in flight have been perfected
by the Bureau of Standards, the aero
rauticS branch of the Department Of
Commerce has made public the award
Of contracts sggreesting more than
SiS0,000 for u more radio control sta
tiorS, s radio beaconS and II marker
heaconS TO be established along the ma
tonsl airwsyS next Autumn
There are now Il radio stations along
the trsnScontinental airway, giving a
24-hour daily service TO aviators These
stations and the new ones 10 be built by
the General Electric Co. and installed
By the United States Lighthouse Service
collect weather information telcphoned
from intermediate fields. impart il to
pilots about 10 take of ana advise the
svistorS while IN flight Of changes in
weather or Of landing conditions at the
terminal fields.
Expect Fewer Accidents.
The radio and marker beacnnS. which
are 10 be built BY the Westinghouse
COMPANY send out directional signals
for the aid of the pilot in navigating his
craft
Greater reliability in sir mail and air
from the new ads to air navigation
made possible by radio. A decrease in
the number Of accidents is also expected
in view Of the Official weather data for
even while in fight they are to be kept
in constant touch with the ground by
Ta6lo-telephone.
England and France. with their high
II developed commercial air lines, are
far IN advance Of this country in tha
adaptation Of radio for air navigation
purposes. according 10 information OBJ
tanned here. But the orders Just placed
for the tTanSmitterS and beacon guides
mark the beginning of an expanded
program Of governmental radio aid Ia
aviation provided in the air commerce
act.
The control stations will broadcast or
$50 TO $50 meters. in accordance with
the international treaty designating
wave lengths for that purpose. The
beacon signals for holding planes to
their course will be transmitted on $50
TO 1850 meters
Special Receivers.
Radio Corporation Of America has de-
Teloped q special line Of light receivers
far this service In their development
special attention was paid TO noise, vi
b-ation and regenerative disturbances
II radio to aviation for some time. Spe-
ciai csrphones are to be used BY the
aviators. which wil exclude the noises
OF the plane while not sacrificing the
pilots ability 10 know at all times
whether his engines are functioning
properly. This is accomplished by hay-
ing microphone on the fire wall. per-
mitting the pilot 10 concentrate his
hearing on the operation of the engines
by merely throwing a switch.
When visual instead of audible direc-
fton signals are desired. the transmit
tiers can readily oe converted By the
addition of a panel having a tuning
fork control
The fraudulent stock salesman and
blue-sky promoter is to be pursued over
the air. With a view 10 reducing the
$500 000. 600 loss now sustained by
credulous investors each year. a weekly
educational radio program OF financial
counsel and advice will be inaugurated
At 10 o'clock tonight thrCsIgh WRC.
The program is 10 be known as the
EalSey Stuart presentation
The series viii be opened by Repre-
tentative McFadden Of Pennsylvania.
chairman Of the House committee on
banking and currency and author OF
the McFadden national bank bill. and
oay night In view Of the importance
Of tins subject as intimately touching
American family life. the programs will
partake both Of education and enter
tsinment In order that the appeal may
be as broad as possible
Six instrumental specialists in an
imposing array viii be included in the
haf-hour broadcast Of the Dodge pres
entstion. which viii be heard through
WRC az 8 O'Clock. Specialists on the
xyiophone. saxophone accordion. vio-
lin. trumpet and guitar are included
Such well known broadcasters as ErYa
Giles. Vaughn de Leath. Colin OMore.
I'd Smalle and Lou Raderman will take
part
Three Ehows-one now passed into
memory-sre represented in the music
which viii be heard during the half
hour broadcast Of the Hoover Seutinelg
al $50 O'Clock The present popular
success. Good News" viii be repre-
sented 0y the orchestra's playing Lucky
IN Love" and the closing ensemble.
Good News" up in the Clouds"
which viii be sung by the Hoover Male
Quartet, comes from the success. The
Plve O'Clock Girl and the Hoover
Honeymo0ners' duet. Because You're
You" rs from Victor Herbert's former
success, The Red Mil"
The Potomac Electric Power Co. Con-
cert Orchestra viii be heard at O'Clock.
followed at $50 with the Wayside Inn.
a varied program viii be played by
the Army Band IN its radio concert 70
% broadcast tonight by WMAL. The
SELECTIONS Include an overture Eureka ="
%nlcn comes from the republic Of Vene-
s3eia. and has never before been plsyed
IN the United States, a march. Salute
" Valley Forge" and a descriptivs
piece. The Dedication of the Temple.
trombone, ssxopl1one and msrirnbs
solos VIII lntersperse the bands selec-
tons.
4 program by the Afro-Amertcan
Chorus and talk prepared by Science
Service on The April Evening Skies"
are among WMAL's other attractions.
SfiecllonE from current musical COM
ecieS anc old-tinae tunes will be fea-
b3feo 10 the dinner concert " be broad
F<NF fFgSg S~ags