Radio Shack 21-1703 A - Manual (Page 12)

12
Additional Information
Troubleshooting
If your CB is not working as it should, follow these suggestions to see if you can
eliminate the problem. If you cannot, take the CB to your local RadioShack store
for assistance.
Symptom Check/Try
CB has trouble receiving. Turn the transceiver power on. See “Operation” on p. 9.
Secure connections (antenna, microphone).
Adjust squelch.
Radio may not be on an operating channel. Switch
to an active channel.
PUSH TO TALK may be held down. Release PTT.
Adjust the volume.
CB has trouble transmitting. Turn the transceiver power on.
Secure connections (antenna, microphone).
Check for corrosion in connections. Clean and
tighten connections.
Radio may not be on an operating channel. Switch
to an active channel.
PUSH TO TALK is not firmly pressed down. Press
PTT completely.
The CB does not work at all. Secure connections.
The fuse may need replacing. See “Replacing the
Fuse”
on p. 13.
Channels cannot be selected. Set OUT CH9 CH19 to OUT.
PUSH TO TALK is held down. Release PTT.
Reducing Noise
Because the CB itself is fairly quiet, most noise you hear is probably from an
external source in your vehicle such as the alternator, another CB, or spark plugs.
The transceiver uses an ANL (Automatic Noise Limiter) circuit to reduce noise.
However, if possible, try to eliminate the noise by finding its source.
You can determine the noise’s source by turning off the engine and operating
the CB with your vehicle’s ignition set to ACC. If the noise is reduced, the
problem is in your vehicle’s ignition or electrical system. Here are a few hints to
help you reduce or eliminate such noise.