Atlanta tri-weekly journal. [volume] (Atlanta, Ga.) 1920-19??, 1922-06-10
WESTERN ELECTRIC
ENGINEER IS HERE
PUTTING UP PLANT
Continued from Page u

with their fellows of the American
Telephone and Telegraph company
and directed by General ). j. Carly,
vice president and head of the Bell
system department of development
and research, and Frank B. Jewett,
their own chief engineer, the tech
meal experts have by constant study
discovered things about radio I'M
dreamed Of few years age.
Although speech was transmitted
eXperimentally up to a distance of
one mile in 1901, no practical use of
radio telephony resulted. However,
with a view toward applying the
latest. developments in the art and
of taking an active part in these
forward steps, attention was again
turned to radio telephony in 1915.
Early in that year sending station
was put into operation at Montauk
Point, Long Island, from which
satisfactory wireless Telephony was
carried on, first with a small re-
ceiving station on the DUPONT build
ing in Wilmington, Del, ana later
to rough and ready antenna erect
ed at Saint Simon's island on the
southern coast of Georgia, a distance
Of 1 900 miles. The most noteworthy
achievement of this early aerial un-
dertaking was that of talking from
an ordinary telephone desk stand at
Montauk Point by wireless to Geor-
gia where the conversation was in
turn relayed over an ordinary long
distance circuit back to New York.
Later in 1915, a high power
vacuum tube transmitter, the first
in the world of so large power out
put. was constructed by the Bell
| engineers and installed at Arlington,
Va.
The antenna system of the naval
radio station there was used for
these experiments. Observers with
special audion receivers using high
| and low frequency amplification
| were sent to Colon, Panama; Homo
lulu, San Diego, Cal, and Paris.
| France.
Special BrOadcasting Room
| These experiments were an
epochal success. The engineers
| talked across the Atlantic ocean to
Colonel H. E. Shreeve, of the West
4
| A. T. & T. officials spoke across the
United States and the Pacific ocean
| to Lloyd Espenschied, of the A. T
| & T., at Honolulu, as well. A dis
| lance record for transmission of the
human voice had been established
| During the World war, the same
engineering and development organ
| ization whose patents are embodied
was charged with the development
of many and varied communication
| systems, among which, in the radio
| field, may be mentioned the follow
| ing: Solution Of the difficult prob
| lem of wireless telephone communi
cation between airplanes and be
| tween airplanes and the ground, the
| development of the submarine
chaser radio telephone sets, and
miscellaneous radio telephone sets
for field use, such as, radio tele
| graph set for use on tanks.
The Journal broadcasting station
will be unique in many respects
| Designed to cover region Of from
| 100 to $50 miles from Atlanta and
! to deliver 500 watts of radio fire.
! quency power to the antennae sys.
| tenn, under favorable condition it
| undoubtedly will be heard at much
greater distances. 1t can reasonably
| be expected that once broadcasting
| service actually starts this section OF
the south will show great increase
! in receiving stations. Communica.
| ton will also be possible with steam.
! ers plying along the Georgia coast
| oeiIoiIi+x1 oF 81, 10 Oh 50
! telephony was demonstrated a few
months ago during the history max.
ing wireless transmission between
| the S. S. America and the Bell sta.
| tons on the Atlantic coast and by
! the recent accomplishment of the
! engineers of the Western Electric
company in broadcasting from their
| experimental station at New York
of which station The Journals is a
duplicate in power and equipment
an entertainment that was heard on
| the S. S. Colonel Drake, 1000 miles
west of San Francisco and more
than $500 miles from the takers.
! To obtain ideal operating condi
tons for the new broadcasting sta
ton a special suite of rooms has
been prepared on the fifth floor OF
The Journal building, in which every
means has been taken to insure suit
| able acoutic properties. The chamber
| that houses the microphone anC
| which will form the headquarters
for the speakers, singers and music
ians who will give WSB's programs
is mysterious compartment with
walls shrouded beneath layers OF
draperies and a floor buried beneath
| the heaviest of carpets. Constant
study has proved that to prevent
the reflection of sound and to pre-
vent the impairment of the quality
of vocal and instrumental music
such precautions are needed. The
work of perfecting The Journals
echo proof studio, has been carried
out by acoustic experts of Johns
Manville, Inc, after a careful study
of The Journals requirements.
Great Radio Transmitter
Adjoining the room just described
are two others, one given over tc
the radio sending and receiving ap
paratus, and the other to the power
equipment required to supply the
transmitting energy. The former Of
the pair accommodates the radio
transmitter, the power panel, input
amplifier panel and monitoring re
ceiver, the antenna relay contro
and the radio receiving devices.
The radio transmitter forming the
heart of The Journal broadcasting
station is contained in large black
steel cabinet weighing ton il
which are installed the vacuum
tubes, filters, relays, resistances anc
the other auxiliary apparatus which
make possible modern aerial com