MAXIMUM RANGE
The maximum range and quality of CB transmissions vary depending on these conditions:
•The type and quality of antenna used
•The height of the antenna’s mount- ing location — the higher the antenna, the better the signal’s range
•The surrounding terrain — moun- tains and tall buildings limit the range
•Weather conditions
•The number of nearby CBs operat- ing on the same channel
REDUCING NOISE
The noise blanking (NB) circuit helps keep background noise to a minimum. However, strong sources of electrical noise (such as your vehicle’s ignition, another radio, or spark plugs) might be more than the circuit can compensate for.
If you use the CB with the engine on, you can determine the source of the noise by turning off the engine and oper- ating the CB with the ignition set to ACC. If most or all of the noise goes away, the problem is in your vehicle’s ignition or electrical system.
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Here are a few hints to help you reduce or eliminate such noise.
•Replace old ignition wires with new,
•Install noise suppressors on your spark plugs, or install new spark plugs that have
•Be sure that the ground connection (black wire) is securely attached to either your vehicle battery’s nega- tive
If problems persist, check your alterna- tor/generator, regulator, and gauges. Noise from these sources can be re- duced or eliminated using bypass ca- pacitors at various output voltage points.
Your local RadioShack store has a wide selection of
