The New York herald., 1922-08-11
Stadium Concerts
to Be BrOadcaSted
in 2,OOO-Mile Area
Philharmonic Orchestra May
Be Heard by Audience
Of Million.

It was announced last nigh. that the
Stadium concerts are TO be broadcasted
by radio. beginning this evening, and
after that on Sunday. Tuesday and
Wednesday nights. when the concerts
close. The music that for six weeks
now has been played for New Workers
by the Philharmonic Orchestra will be
heard within radius OF 1000 miles
from this city as far as the Mississippi
River and New Orleans. UP In Canada
and 1000 miles out at sea.
Never before has great New York
symphony orchestra had its music broad
casted. AL the steamship companies of
New York and those of the great lakes
as we'll have been asked 10 instruct their
ships to listen in" The Boy Scouts
have been notified to ask their various
camps to tune up" and the leading
hotels have been Invited TO hook on.
Broadcasting of the concerts will be-
gin at o'clock, daylight saving time.
on each of the four nights and will last
for an hour and a half. Instead Of an
audience OF 10000. the Stadium's ca
pacity, the audience Of these concerts
from tonight may approximate a mill
ion. On Manhattan Island alone there
are hundred thousand machines among
the residents available for receiving the
I concerts.
The announcement as to the radio
broadcasting was made to the Stadium
audience Of last night through a page
insert in the Stadium program which
said in part.
The suggestion OF broadcasting the
Stadium concerts was too good an op-
portunity to be disregarded The West
inghouse Company. which operates the
broadcasting station VIZ. was COM
municated with. executives of the
American Telephone and Telegraph
Company were consulted and radio en-
gineers We're called upon to study the
technical problems involved. The thing
was done.
"A special equipment has been in
stalled that makes possible the spread
ing Of the actual music of the Stadium
concerts over territory that repre-
sents a population of 100000 people,
/ operating receiving sets roughly esti.
mated at about 100000.
THE music OF the New York Phil
4 harmonic Orchestra is recorded by
special type of microphone developed
\ by the Westchester Company. This de-
vice. in appearance a small black CYL
\ inder four inches long and four inches
in diameter Is suspended in view Of the
/ audience about twenty-five feet in
I front of the platform and about
/ twenty-five feet high. IT is supple
mented by second microphone located
just above the orchestra leaders plat
| form for the purpose OF recording any
! soloist These microphones convert the
music (as well as any applause) into
an electric current OF strength and
character that varies in accordance
with the charac OF the sound waves
that impinge upon the diaphragm.
This current is then transmitted
over special wire leased for the en-
tire week. The wire extends through
the various telephone exchanges to the
| Westinghouse broadcasting station at
| Newark. a distance of twenty-five miles
from the Stadium. At the broadcast
ing station the electric current IS ampli-
fled by means Of special vacuum tube
circuits; the amplified current Is then
impressed upon the modulator tubes
OF the transmitting set. These modu-
lator tubes in turn vary the output OF
the radio transmitter in accordance
with the same sound waves that are
impressed upon the microphones at the
1 Stadium.
"The music thus sent out may be
picked up by any radio receiving set
that tunes In TO the prescribed wave
lengths Of 800 meters on which WIZ
sends out its programs"