(The form calculates frequency of the communication 10kHz wide CB channel in the Czech Republic from its channel number.)
- C pásmo ... kanály 1-40 ... 26,965-27,405MHz (C band ... channels 1-40 ... 26,965-27,405MHz)
- B pásmo ... kanály 41-80 ... 26,565–26,955MHz (B band ... channels 41-80 ... 26,565–26,955MHz)