User manual

9
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Press the respective button longer to run up or down through the channels. The
present channel is displayed.
Field intensity meter (S-meter)
On the bar graph display You can see approximately how strong the receiving signal
is.
The scale under the bar display (S1 to +30) helps with orientation for an input signal
in the stages S1 to S9+30dB.
Please note: the field intensity meter only registers a signal when the muting control
has opened.
RF Gain setting
You can adjust the overall-sensitivity of Your receiver with the RF gain knob, which is
combined with the volume knob (outer ring). Normally, RF gain should be in the full
clockwise position. Sometime You may desire to listen only to nearby stations. Or
You may receive much interference signals. In such cases You can reduce the
sensitivity of Your receiver by turning the knob more counter clockwise.
Please note: Squelch and ASC settings may require re-adjusting in low sensitivity
position.
Adjusting SQUELCH (muting) and ASC
Particularly in FM, noise can be a nuisance on a free channel. To suppress as much
noise as possible, Your radio is equipped not only with an ordinary muting control
(SQUELCH)
like all CB radios have, but has also a preinstalled
ASC
circuit (patented
by GPE). Both circuits can be preset and adjusted independent of each other. Please
be careful with the squelch circuit: it may suppress noise, but if turned too high, it can
also suppress weaker signals.
There is a double potentiometer for both SQUELCH and ASC setting. The inner ring
is for SQUELCH; the outer ring is for ASC.
This is how to adjust the signal strength required to switch on the loudspeaker, using
the (inner) SQUELCH control knob:
The further the control knob is turned to the right, the
stronger
a signal has to be in
order to be audible through the loudspeaker.
In order to adjust the set to be the most sensitive to incoming signals, switch to a free
channel:
• Use the rotary switch or the microphone buttons to find a free channel,
where no signal is displayed.
• Then turn the SQUELCH control carefully to the right until the noise just
about disappears.
Now the loudspeaker stays off when on a free channel but it switches back on when
receiving even very faint signals.
The muting adjustment is particularly important during channel
scanning. In this mode the point to which the set is adjusted