6
5.
SQUELCH CONTROL:
This knob is used to eliminate background noise
being heard through the receiver,
which can be disturbing when no
transmissions are being heard through the receiver. To use this feature, turn the
knob fully counterclockwise and then turn clockwise slowly until the
background noise is just eliminated. Further clockwise rotation will increase
the threshold level that a signal must overcome in order to be heard. Only
strong signals will be heard at a maximum clockwise setting.
6.
MIC GAIN CONTROL/PUSH TB OFF SWITCH:
Adjusts the microphone
gain in transmit and PA modes. This controls the gain to the extent that full
talk power is available several inches away from the microphone. In the Public
Address (PA) mode, the control functions as the volume control. Pushing this
knob turns the Talkback circuit on and off.
7.
RF GAIN CONTROL:
8.
DIM CONTROL/PUSH FREQUENCY DISPLAY OFF SWITCH:
This
knob controls the level of brightness for the meter lamp, faceplate, frequency
display and channel display. Pushing this knob turns the Frequency Display on
and off
9.
RF POWER CONTROL:
This control allows the user to adjust RF power
output.
10. COARSE/FINE CONTROL/PUSH NB-ANL OFF SWITCH:
Allows
variation of the radio operating frequencies above and below the channel
frequency. Although this control is intended primarily to tune in SSB signals,
it may be used to optimize AM/FM signals. Pushing this knob turns the Noise
Blanker (NB) / Automatic Noise Limiter (ANL) circuit on and off. The Noise
Blanker (NB) is very effective in eliminating repetitive impulse noise such as
ignition interference.
11. RX/TX/OFF/RX SWITCH:
When in the RX/TX position, the two clarifiers
(Coarse and Fine) function on both receive and transmit. When the switch is in
the RX position, the Fine clarifier fu nctions on receive only and the Coarse
clarifier still functions on both receive and transmit. When in the OFF position,
both clarifiers have no effect on the frequency.
12. CHANNEL SELECTOR:
This control is used to select the desired transmit
and receive channel.
13. TB LED:
This LED lights green when the TB function is on.
Adjust this knob for desired level of incoming signal.
