If you have not used a CB radio since the 70s you may have missed a recent change that allows CB to do FM now.

Big picture:
⚡️ This FM on unlicensed HF ⚡️

From linked article:
Why are people excited about FM capabilities for CB radios?

Historically, one major limitation of CB radios has been the number of channels (or frequencies). Traditional CB radios only operate on 40 channels and in the following modes:
AM (Amplitude Modulation) and
Single Side Band or SBB, which includes Upper Sideband (USB) and Lower Sideband (LSB).

FM (Frequency Modulation) mode offers much better sound quality when communicating via radio and improves the CB experience by leaps and bounds. This is the biggest change to CB radio technology since its expansion from 23 to 40 channels in 1977.

FM mode is the best of all worlds when it comes to CB radio. The equipment is affordable, compatible with existing CB setups, and offers the best available sound quality due to the "capture effect," meaning that one strong signal is selected, and other signals are suppressed.

#cbradio #fm #am #lsb #usb #amateurradio #hamradio #radio #cb

https://www.cobra.com/blogs/news/faq-fm-for-cb-radio