What is RF Gain on a CB Radio?

RF refers to wireless communication of signals from one device to another. RF (Radio Frequency) is synonymous with radio, and CB radio in that matter.

Since the transmission is wireless, there is the chance of interference from the atmosphere or other channels that overlap. The best way to counter this is by increasing the signal strength to overpower the noise. This is done by boosting the RF gain to filter sensitivity.

RF gain will reduce the noise the receiver gets without lowering the reception power as a CB radio squelch would.

How Doe RF Gain Work?

Since gain boosts reception strength, turning it all the way to the top makes your radio receive weaker and far away transmissions better. This is the exact opposite to CB squelch that focuses on the closes strongest signals only.

Check this too: Best CB Radio For Off Roading In 2020

In short, RF gain modifies the sensitivity of your CB radio

In essence, you can use RF gain to capture far off transmissions or CB talk from nearby. Turning it up to tune into weak transmissions and turn it down gradually as the transmitter moves closer and gets stronger.

Squelch control determines what range of signals your radio latches on. Turning the squelch high lets you receive stronger signals. Turning it low lets your radio focus on weaker signals.

You can use squelch hand in hand with RF gain to help you get the highest clarity reception from different signal strengths.

What About Microphone Gain?

Microphone gain is a different way to boost your transmission strength. It works by boosting your voice making it loud enough to carry far and wide. It is, however, not necessary if your voice is naturally loud as it will carry just fine on its own.

Think of microphone gain as a feature that lets you use a soft voice without people complaining that you are inaudible and should speak up.

The only problem is that too much mic gain could introduce a lot of background noise and distort your transmissions.