Evening star., 1934-11-25
BY THE RADIO EDITOR.

commonly called man-made
interference, will 60 the way of
L the boil weevil if the combined
efforts of the Nations leading
radio engineers and scientists meet
with success.
War unto the end has been declared
against the extraneous electrical i'm
pulses which originate in flatironS,
dial-telephones, automobile ignition
systems, elevators and other electrical
appliances and devices that lombard
receivers with roars and wheezes. In
accordance with the recent joint ac-
ton of the Institute of Radio Engi-
neers and the Radio Manufacturers
Association, committee of outStand-
ing radio scientists will attack the
problem. The major effort will be
that of inducing electrical equipment
manufacturers to use proper shielding
methods in the production of devices
that are actually miniature radio sta
tionS unless their oScillating qualities
are curbed.
The domestic campaign comedies
with one agred to few weeks ago by
the International Conference of Radio
Engineers in Portugal. There it was
decided that the man-made interfer-
ence question was one of such magni-
tude as to demand worldwide atten-
tion. They foresaw the possibility of
unending interference to reception If
existing conditions were permitted to
develop unchecked. With more and
more electrical household appliances
being used, the ether is getting in
creaSingly greater doses of these mi
mute electrical currents which travel
only short distances but have sufficient
intensity to diStort reception and an
noy listeners.
Problem More Urgent.
Increased use of the short waves,
which eventually are expected to ac-
commodate television, regular broad
casting and other radio services makes
the man-made interference problem
even more urgent. That is because
the higher frequencieS are more SuS-
ceptible to this kind of electrical in
reference.
Heretofore only scattered efforts to-
ward reduction of electrical interfer-
ences to reception have been under
taken. At the joint technical meet
ings held in Rochester recently, it was
decided that a single co-ordinated
program should be undertaken with
the cooperation of automotive, elec-
trical and public utility companies and
manufacturers to devise means of
properly shielding their equipment so
they will not transmit the interfering
noises. To this end, DR.. Alfred N.
Goldsmith, eminent consulting engi-
neer, was designated as chairman of
committee which will undertake the
work
Dr. Goldsmith will ask a number of
companies and agencies to designate
one committee member each. These
include the Federal Communications
Commission. Bureau of Standards,
Edison Electrical Institute, American
Radio Relay League; Department of
Marine, Radio Branch, Dominion of
Canada; National Association of
Broadcasters, Electrical Testing Lab
oratories, Institute of Radio Engineers
and the Society Of Automotive Engi-
neers.
I'VE will strive in a cooperative
manner to bring about an electrically
silent atmosphere in the United
States" said DR.. Goldsmith. I'VE shall
pursue purely persuasive methods in
an effort to be helpful over a period
of years in improving all types of
radio reception, which includes tele-
vision, if, as and when it arrives. We
shall do the work. not by legislation,
but by constructive engineering
methods"
The domestic campaign was started
by w. r. G. Baker, chairman of the
engineering division of the Radio
Manufacturers Association and vice
president of the R. C. A-Victor Co.
He pointed out that there are two
ways of coping with electrical inter-
ference. The first, he declared, is to
eliminate the interference at its source
by proper suppression methods, in
cluding shielding, and the second that
of using scientifically designed noise
reducing antenna system. The latter
method, however, was said to be i'm
practicable in congested city areas.
Wins Beauty Honor.
THE Nationwide search for radios
l. most beautiful girl of 1884, con-
Quoted by Radio Stars Magazine,
with prominent radio editors from
coast to coast acting as judges, has
ended with Dorothy Page, 24-year-
old titian-haired N. B. c. singer of
Chicago, as the winner.
The formal announcement of the
honor to Miss Page will be made by
Curtis Mitchell, the magazines editor.
on the Jan CARRIERS Supper Club"