Since the frequencies for CB radios operate within short-range communication, they're best for individuals or smaller groups. The CB radio band runs on the 27 MHZ frequency range.

Two-way radios fall into one of three types: Citizens’ Band (a.k.a. CBs), General Mobile Radio Service (GMRS), or ham. They all operate on different frequencies and have varying wattage outputs ...

The CB radio service was created in 1945 by the Federal Communications Commission (FCC), which designated a portion of the radio spectrum for use by average citizens for personal communication.

CB stores sprang up overnight and the units sold like hotcakes. In 1978, another 17 channels were added to the original 23, for a total of 40, which is how it remains to this day. The innovation of ...