Evening star., 1943-12-26
IeIevision Network
OF 50 Cities After War
| Forecast by Engineer
~ the Associated Press.

NEW YORK, Dec. 25.-A lotto
12-billion-dollar television industr,
is ready to 60 ahead when material.
are available at the wars end,
Allen B. Du Mont, veteran radi,
engineer, said today that technica
advances during the war have mad,
possible complete planning for {
national system of telecasting ans
that the radio manufacturing in.
dustry Is prepared to begin pro-
duction OF equipment and receivers
Mr.. Du Mont said that withir
a short time after peace comes, h,
expects to see in operation q tele.
casting network covering the 81
principal population centers of tn.
United States. This first network
probably will employ transmission
of programs by both coaxial cable
and by point-to-point radio relays
Telecasts Of filmed programs also
show promise and will be an i'm.
portant factor in television, he pre-
dicted.
Big Problem Solved.
A maximum range of about sc
miles from the telecasting station
to the home receiver Is possible
with present equipment and one oi
the big problems solved by engineers
was the relaying of programs tc
regional broadcasting stations.
The two methods which have
proven equally efficient and COM
parable from a standpoint of costs
Mr.. Du Mont said, involve feeding
of the program from the telecasting
studio to the transmitter by coaxial
cable, or by point-to-point radio
transmission without cable.
Sam Cuff, one of Mr.. Du Mont's
associates in television development,
said that relay by coaxial cable will
probably be used where the cable
exists in communications systems,
and radio relay for more sparsely
populated sections of the country.
The telecasting of filmed pro-
grams will be an important part of
the industry" he said. Moving pic
ture films Of events can be dis
tributed by airmail to telecasting
stations and the programs broadcast
so as to overcome the time lag be-
tween the East and West Coasts.
This feature will be important to
commercial users of television."
The public acceptance of moving
pictures has prepared the way for
filmed programs which will supple
ment live" telecasts of studio fea-
lures and spot news events, he said.
May Cost $4,000, ,000, 900.
The national Importance of tele-
vision lies in the manufacture of
home receiving sets, Mr.. Cuff said
adding his prediction that so 900 600
OF them will be purchased in the
United States at an average price of
5000 each.
To completely blanket the Nation
Tor telecasting may cost as much as
81 O00,O0O,0 900, Mr.. Cuff estimated.
Coax1al cable was first developed
before the war by the communica-
tlons industry to provide for cable
transmission Of a large number of
simultaneous messages over long
distances. The wire, which is CEN
tered IN gas-f1lled metal tube, is
free from interference from un-
wanted electrical currents.
Mr.. Gun said its basic value to
communications would lead to ex-
tensive installations connecting
principal cities Of the country after
the war.
Mr.. Cuff does not believe teleyision
will replace the present-day radio.
Televised programs, he said, will
cover a period Of four or five hours
day when people will have leisure
time to watch the program. Present.
day radio, on the other hand. holds
interest for large audience over a
period Of 10 hours day, he pointed
out.