Operating Procedure To Transmit; Preventative Maintenance; Troubleshooting - Uniden PC122XL Owner's Manual

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this setting. The squelch is now properly set. The receiver will remain quiet until a
signal is actually received. Do not advance the control too far, or some weaker
signals will not be heard.
OPERATING PROCEDURE TO TRANSMIT
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1. Se.lect;,tpe deslred,~ha(1nel for tt~,ns,lJ1.ission.
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2. If the 'channer' is 'dear, depresf'tfje
push-to-talk' 'switch bn the side' of 'the micro-';- '-' .'. "~,"
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phone'al1d'speak In,a normal voice'.
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CAUTION: 'jThl..tfa'n'sceiver Voltag~';';Staiidirig Wave Ratio (V.S.W.R.) -measurement -'.. ~ . "5,'
mustce perlortned' p'ricifto' the use ofth:e transmitte~. A"V.S.W.R." ratio in excess of
'
2:1 may'dam'age the transmitter.
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OPERATION,O,FSSB
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Choose the desired side band frequency by, A; select standard channel (1
-
40), B;
select Upper or Lower side band by moving AM/SSB switch. Transmit or receive
according to previous instructions.
When receiving a side band transmission you may need to use the Clarifier control to
fine tune that frequency. Rotate the Clarifier clockwise or counterclockwise for
optimum reception.
PREVENTATIVE MAINTENANCE
At six to twelve month intervals, the following system checks should be made:
1. Check the Standing Wave Ratio (V.S.W.R.)
2. Inspect all electrical connections.
3.
Inspect antenna coaxial cable for wear.
4. Inspect all screws and other mounting hardware.
TROUBLE SHOOTI NG
If your PC122XL is not performing up to your expectations, please try these simple steps.
If you still cannot get satisfactory results after reading this manual and following the
trouble shooting steps, you may need to have your unit serviced.
trouble
Unit will not
turn on.
No power
check
1. Checkpowercord and all
connections.
2. Check power cord fuse.
3. Check vehicle electrical system.
1. Check and adjust Squelch.
2. Check antenna system and cable, connectors.
3. Check operation mode of the radio.
1. Check antenna system and cable, connectors.
2.
Check antenna grounding.
3. Check for corrosion on connectors.
Poor reception
Weak transmission
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