Evening star. [volume] (Washington, D.C.) 1854-1972, 1926-01-27
Know No Operating Hours.


These Simpler stations of which I
speak are in operation every day and
night, observing no division of time or
operating hours. They operate on any
or all OF the wave lengths assigned for
use by broadcaSting stations. and are
at present causing more interference
than ever. They are none other than
the radiating regenerative receivers
the transmitting ability of which has
been proven.
Last year about this time condi-
tons were materially improved, but
now they are a hundred times worse
l estimate that there are at least 100
offenders in Washington, and the De
pdrtment of Commerce should take
some definite steps toward the eIimina-
ton of this type of unlawful transmit
ting station. Such can be done by
compelling every listener to couple
his set To the antenna ut has been
done in England successfully. A few
months ago the department compelled
every amateur station operator to
couple his transmitter to the antenna."
W. w. Massey also registered
vigorous complaint about interference
from reSenerative sets, but expressed
the belief that this nuisance" can
only be eliminated at this time through
persuasion. LAS far as any co-opera-
ton really being effected is concerned
seems quite remote, SO would not a
more effective method of attaining
such actual elimination result for the
future" he asks, IF legislation with
sufficient teeth in it were enacted to
actually prohibit the manufacture and
present use Of these vice-producing
contraptionS, or compel equipment
such as would prevent reradiation?"
THE greatest hindrance to recep-
ton at present Mr.. Massey added,
are these Vice-producing devices
operated by folks who, becoming
angry at their lack of success in
fishing in the ether, lose their
patience, not even to mention a Dos
sible suggestion Of consideration, and
tWirl the dials around and play with
the ticker on the sets, apparently in
revenge, until other people are trying
to tune through a perfect bedlam."
How to Use a Squealer.
When handled properly regener-
alive sets produce excellent results.
improperly controlled, however, they
become constant annoyance not
only to the operator but to other
people in the neighborhood who own
receiving sets
When receiving with a regener-
alive - the presence of a broadcast
noted by high-pitChed whistle.
When the receiver is properly tuned
or adjusted the voice or the music
Will come through clear, the whistle
having vanished. If difficulty is had
IN separating the voice or the music
from the whistle, even when loose
tlckler coupling is employed, the fila
ment of the vacuum tubes should be
turned down slightly by means of
the rheostat.
The point to remember is that with
any regeneratiVe receiver the desired
station should be tuned in first with
the ticker knob set at a low value
After the station has been tuned in,
Increase the ticker setting until great
est amplification is obtained without
distortion. After completing this pro-
cedure is the time to take care of the
fine adjustments. This consists of a
slight REIMBURSEMENT OF both main tun-
ing control and ticker These two
adjustments should be done ~imulta-
neously, using both hands. Small al
ternate backward and forward mo
tions OF both tuning and ticker dials
will produce the best point of recep-
ton. The last operation: is critical
so great care should be- taken. Livery
time the receiver tends to Squeal or
howl the ticker dial setting should
he moved back until a point is gain
reached where the distur bance disap
pears.
In all systems employing Iegenera-
ton the main point to keep in mind
Is that the greatest ampnfication can
he obtained just below the point where
the set starts to squeal, and that when
tuning the operator should always
endeavor to keep below that point.