Generally speaking, channel 1 is the most popular cb channel and 13 is the least used because it doesn't overlap with any VHF radio service.ĬB radio Channel 11 is also very rarely used due to its proximity to an amateur (ham) radio repeater output frequency (channel 1). It really depends on where you are located in the world and what other services exist there as well. CB radio operators can be found on one or another of the 40 channels, depending on what they are trying to do. You might like: Best Two Way Radio What band should CB radio be on?. In October 1983 it was further ruled that these CB channels could be used by individuals on two-way radios in their cars only while driving (hands-free), and then only during periods when the vehicle was actually being operated or was required to be equipped with an operable two-way radio. In 1981, in an effort to increase highway traffic safety, 14 UHF CB radio channels became "highway" channels (29 through 42) and 11 UHF CB channels were "intermediate" CB channels (50 through 59). In late 1979 the FCC removed channels 1 - 13 from the 40 channel CB band plan. The use of the original 29 VHF + 21 UHF was later reduced to only 14 "mid-band" UHF CB radio channels (14 through 28). There were originally 40 VHF low-band (1 to 6 MHz) and 20 UHF high band (ultra high frequency, 300 kHz - 3 MHz) channels in total. The original 26 "mid-band" UHF CB channels that start at channel 14 are now on the 446 MHz service. Channels 30, 31 and 32 are 2 meter ham radio repeater outputs (operate in the 70cm band). UHF channels were channels 14 through 40, and VHF channels were 1 - 13. UHF (Ultra High Frequency) and VHF (Very High Frequency). Understand that there are two "worlds" of channels. You can hear the difference in sound quality between FM and AM on your local FM stations when a thunderstorm gets too close to the transmitter. The CB radio spectrum is AM - Amplitude Modulation.
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