Evening star., 1924-10-26
Short-Wave Test Successful.


During the transcontinental cruise
of the Naval Airship Shenandoah the
Naval Radio Laboratory at Bellevue
n. c.. kept in communication with
this great aerial cruiser every night
by means of short weave circuits.
No sooner had the Shenandoah left
her hangar at Lakehurst than DR..
A. III. Taylor. chief of the Naval Radio
Laboratory began calling "NERk" on
his 1,500-wat transmitter. He used
two wave lengths, 81 and 81 meters.
while the Shenandoah employed her
new short-wave set of 100 watts pow
er on wave length of 80 meters.
During daylight code messages were
exchanged up to approximately l'ooo
miles, but at night communication
was carried on all the way across the
country, and every night when the
airship was tied up at her mast IN
San Diego. The useful period OF
darkness however. was short, due TO
the fact that compa ratively the sun
arose on the Atlantic side three hours
earlier and set three hours later on
the Pacific, cutting down the night ser
vice from the usual II hours to ABOUT
six.
Radio engineers of the Navy are
elated over tho tests, and prenict that
before the Winter is over the naNai
bulk OF night transcontinental traf-
fc on short waves. NAA, at Airing
ton. or MSS, at Annapolis, may ne
eouipped with medium powered short
wave sets to communicate with the
naval radio stations in Cahfornia.
Eventually, it is believed, short-waNe
or high frequency transmisslofl' WIN
higher power. will become pract-
cal means of daytime communicatioi
in naval service. 1t Is propdpie tna'
the new airship ZR-3 or Los Angeles
viii soon be equipped with dupll-
cate experimental short-waVe set anu
that aerial tests between these Le-
yiathans of the air VIII follo"-
ON board the Shenandoah, Lieut. y.
n palmer and Radio Gunner u. w.
Amour, L. s. n, handled the aeridl
end of this first short-WaNe ai, |l'p
land station circuit. NO detalleu
ports have yet been recelNeu' do
Shenandoah is now en- route TO the
Atlantic seaboard. But us she returns
Es.t further tests will be carried
on and A complete analysis OF the
strdv announced when she docks at
Lakehurst. ra
Renorts from amateurs, VINO hearu
the Shenandoah's short-waNe SET III
action. have come in from prdeCio
all over the United states, hatai oi
GERS say, indicating that the airsn,p ,
GOT carried we'll in all directions + e"
hroadcast listeners heard her. as the
communications between the NaHal
I.ahoratorv and the aircraft were con
ducted in radio telegraph cooe- ~
Ioue-range phone conversations ia
been undertaken to Date
II is interesting that the hrst test
of the recently designed ana con
s+ructed short-wa apparatus mas
worked out satisfactorily, since the
airsbip's short-Wave transmit
Weighs less than half the "elsnl
the main transmitting set. anu IN
royyer consumed is also less tnaii
half Both these features are 'aiu
able in aerial TRANSMISSION se.s,
where weight and space, as wen as
power are limited 49,.
NJ ranorts on the operation or the
.;n transmitter of the SHENANDOAH
have reached the Navy Depa g ~,
but If is reported that during the hrsl
stages of the westward night SUM
difIiculty in operation was lounu W
Tho ship's radio officers. EFery one
,nnnacted with radio in the Navy
Sor,aver seems delighted over 'ne
rformance of the auxiliary set, anu
oy he found that these sets Will
axcbange positions, the auAlllaiy
eSont~wave set becoming the main
transmitter.
dartmouth Seeks License.
dartmouth College, in Hanover ~.