New-York tribune., 1922-10-22
Radio Received
On AlI-Steel
Railroad Car
Loop Aerial Successful i'm
First Test of Kind i'm
History of Railroading;
No Outside Wire on Cat

The most interesting experiment in
| railroading was made on the Broadway
Limited of the Pennsylvania Railroad.
between New York and Chicago last
week, when radio reception was made
in an all steel car without any outside
wires while the train was running at
full speed.
From the results obtained there is
every possibility that direct communi-
cation with a moving train, both by
means Of wireless telegraphy and
telephony, is entirely feasible. During
the test telegraph signals we're received
from steamer on the Great Lakes at
O distance Of one thousand miles. The
detailed report Of J. D. Jones, superin-
tendent of telegraph and signals of the
railroad, who accompanied the expert
| menters as an observer, is as follows
Referring to the radio telephone
reception on Broadway Limited Train
20, October IL, en- route New York to
| Chicago:
The original arrangement, as set up
by the ED. Manufacturing Company
representatives, was to board the train
with their apparatus at North Phila-
aeiphla. This was changed later and
| they made arrangements to board the
train at New York, and set their ap-
paratus preparatory to leaving time of
tram, in order to ascertain the feast
bility OF receiving radio telephone sig
nails while passing through the Hudson
River tubes. Unfortunately the as
sembling and connecting up of their
apparatus consumed so much time that
| there was little or no opportunity to
test while passing through the tubes.
Signals. were picked up on the ap-
paratus after leaving Manhattan Trans.
Ter from the Bamberger station, New
| 2;30 p. m. to a p. m. The signals re-
ceived were very strong while passing
| through Newark and gradually faded
out as the train left Newark.
At 4:45 p. M, after train left North
| Philadelphia, the Wanamaker Station
came on with their grand organ recital
| and signals came in very strong and
clear, up to time when train entered
the Mantua subway, when they faded
away, but were picked up again after
| leaving the subway and held up to
! 5 p. m.
Nothing further was heard from anv
Of the radio telephone stations up to
the time the train arrived at East
| Pittsburgh, about 1915 a. m., October
| 13. At that time telegraphic signals
were heard by some stations using a
continuous wave" telegraph transmit
| ter. This turned out to be a steamer
on one of the Great Lakes working
with Sandusky, Ohio. The telegraph
signals, in continental Morse, were
clear and distinct, and easily read, but
some variations IN intensity occurred
due to change in direction Of their re.
ceiving loop.
We are Informed the reception OF
these telegraph signals continued for
some time after leaving Pittsburgh
and tests were discontinued Satb 2aa. III.
! October 13.
| The apparatus, as used by the ED.
| Manufacturing Company representa-
tives, consisted of eight units, conf
prising three stages Of radio frequency,
one detector and two stages of audio
frequency, along with variable con-
denser and adjustable eighteen-inch
loop receptor.
There was positively no interference
from our electrifcation lines on the
New York and Philadelphia divisions,
and other high-tension power line
crossings did not affect the apparatus