Electrical & Engine Noise
Do you suffer from those annoying noise issues caused from electrical interference? Well, we have the answer for you!
If you have a noise blocker or automatic noise limiter feature (NB/ANL) on your CB, make sure this feature is enabled. If possible, try to wire the CB power leads directly to the battery. This will reduce the likelihood of electrical noise from other systems entering your CB through the power leads.
Make sure power leads and coax cable are not running parallel to other electrical lines for long distances, as this may result in interference bleeding through. While it's usually not possible to route coax and power leads so that they NEVER come near other electrical components, try to limit this as much as possible.
On the antenna side, you could use a noise clipper/noise suppressor such as the NR400, which amplifies the signal and reduces the noise from electrical interference. Don't forget to get a jumper coax!
On the power side, the AWNSFL noise filter reduces and eliminates engine interference! You can splice this in anywhere in between your radio and the power source.
CB noise filters should be used in conjunction with the preventative steps listed above for best performance.
It's often impossible to eliminate ALL engine noise in problematic vehicles, but the above steps should help reduce it and make your incoming CB signal cleaner.