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If you’re having difficulties in adjusting your antenna, check the following:
a.
All doors must be closed when adjusting the antenna
b.
Make sure the antenna base is grounded.
c.
Check your coaxial cable routing (it may be pinched when routed into the car)
d.
Try a different location in your car (keeping in mind the radiation pattern you
wish.)
e.
Is the antenna perfectly vertical?
f.
Try a different location in your neighborhood. Stay away from large metal
objects when adjusting (metal telephone or lamp post, fences, etc.)
NOTE
The transceiver will operate into an SWR of 2 to 1
indefinitely and sustain an SWR of 20 : 1 for a maximum
of 5 minutes at rated operating conditions.
EXTERNAL SPEAKER
The external speaker jack (EXT SP.) on the rear panel is used for remote receiver
monitoring. The external speaker should have 8 ohms impedance and be able to
handle at least 4 watts. When the external speaker is plugged in, the internal
speaker is disconnected.
PUBLIC ADDRESS
To use the transceiver as a public address system, connect an external 8 ohms
speaker (4 watts minimum) to the PA. SP. jack located on the rear panel. Direct
speaker away from the microphone to prevent acoustic feedback. Physical
separation or isolation of the microphone and speaker is important when operating
the PA at high output levels.
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CHAPTER 3 OPERATION
CONTROL FUNCTIONS
FRONT PANEL
1.
ON/OFF VOLUME CONTROL :
Turn clockwise to apply power to the radio
and to set the desired listening level.
2.
SQUELCH CONTROL :
This control is used to control or eliminate receiver
background noise in the absence of an incoming signal. For maximum receiver
sensitivity, it is desired that the control be adjusted only to the point where the
receiver background noise is eliminated. Turn fully counter-clockwise, then
slowly clockwise until the receiver noise disappears. Any signal to be received
must now be slightly stronger than the average received noise. Further
clockwise rotation will increase the threshold level which a signal must
overcome in order to be heard. Only strong signals will be heard at maximum
clockwise setting.
3.
MIC GAIN CONTOR :
Adjusts the microphone gain in the 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.
4.
RF GAIN CONTROL :
This control is used to reduce the gain of the receive
amplifier under strong signal conditions.
