Evening star. [volume] (Washington, D.C.) 1854-1972, 1929-09-18
HILL INVESTIGATES
TELEWSlON CLAIMS
WHO Says It Can Transmit
Images on S-Inch Screen in
10-Kilocycle Band.
BY MARTIN CODEL.

A double mission took Capt. Guy Hill,
Army Signal Corps officer, who has
been acting as chief engineer for the
Federal Radio Commission, to Chicago
yesterday.
First, he intends to investigate the
transmit television images within 10
kilocycle band of wave lengths, mar
rover spacing than hitherto has been
regarded possible for good results.
Secondly, he will inspect the plant
and operations of the Universal Wire
less Communications Co. at Plainfield,
III.
Capt. Hill left here yesterday, to be
gone the remainder of the week. In
Chicago he will be guided about by
Harold Hayes, Department of Commerce
radio supervisor. An incidental visit
will be paid Chicago's police radio sta
ton for purposes of inspection.
Considerable curiosity surrounds the
VINO televiSion experiments because
Of the claims made. Commissioner H.
A. LoFount, after recent visit o Chi
cago, stated that he Witnessed excellent
reception of moving images Tin this
case two prize fighters in action on a
screen 8 inches square. Not being a
technician Mr.. LaMount could not say
whether the transmission was being ac-
complished within the exceedingly mar
row spacing claimed. Actual persons
were used as the television subjects.
The Nelson brothers, who are the ex-
perimenters, have advised the commits
sion that they now can show televised
subjects that are recognizable and clear
on 14-inch square screen, maintaining
the transmission within the same 10
kilocycle limits.
If this can be done the Chicagoans
have made rapid strides forward in
this newest phase of radio progress. 1t
is understood an etfcft will be made to
commercialize the development.
The inspection of the plant Of Uni
verSal Wireless Communications Co..
newest entrant in the radio-telegraph
field, Is the result of an invitation from
that company.
Tests of its ability to operate, at
tempted several months ago, were de-
sultory. The company now claims to
Federal Radio Commission that it can
accomplish manifold signal transmits
sion on single channels.
Representations to this effect won
the company grant of 40 high-fre-
quency channels from the commission
last Winter. 1t Is proposed to erect a
network Of stations, furnishing more
with public radio-telegsaph message
service. .
Universal, through It's chief engineer,
J. D. Durkee, recently asked the COM
mission to authorize 1t to install two
transmitters in single buildings located
between certain large cities adjacent to
each other. Each station is to be re-
Rarded as q distinct entity. For ex-
ample, 1t is proposed that station
house half way between Providence and
Boston shall serve both cities, being
connected to each by land lines.
More claims to ability to tune exceed
ingly sharply, these made by Wired
Radio Incorporated OF New York, leo
the Federal Radio Commission TO grant
that company to use nine experimental
freouencies for test purposes. Using
only one wave length, the Wired Radio
group claims 1t can transmit at least
two radio programs simultaneously I'M
der the system of three-phaSe trans
mission it has developed.
Previous applications OF Wired RADIO
Incorporated for channels with Whlch
to relay programs from Central New
YORK studios to power substations, there
to be sent into subscribing homes by
power lines, had been denied.
The commission was somewhat exer-
cised yesterday by reports that the
transmNter at Winnipeg. using the call
letters CKYS and CNRW, had boosted
its power to 5000 watts on the 780-kilo-
cycle channel. This is one of the
channels which Canada shares with the
United States, and on it are the follow
ing stations In this country: KEW,
Burbank, Calf; KIM, Los Angeles;
VINO, Memphis; WTAR-WPOR, Nor
folk, Va.
Copyright, 1923, by North American News