CHIRP (CROSS PLATFORM HAM RADIO PROGRAMMING) is a free, open-source tool for programming amateur radios. Below is a list of commonly used frequencies for different bands in the UK.
These frequencies are for various purposes including repeaters, simplex channels, and calling frequencies.
2 Meter Band (VHF, 144-146 MHz)
- 144.000 MHz to 144.150 MHz: CW (Morse code)
- 144.150 MHz to 144.500 MHz: SSB (Single Side Band)
- 144.500 MHz to 144.600 MHz: Beacons
- 144.600 MHz to 144.900 MHz: FM (Simplex and Repeaters)
- 145.000 MHz: National Calling Frequency (FM Simplex)
- 145.200 MHz to 145.600 MHz: Repeaters (output)
- 145.600 MHz to 145.800 MHz: Repeater Inputs
70 cm Band (UHF, 430-440 MHz)
- 430.000 MHz to 432.000 MHz: ATV (Amateur Television)
- 432.000 MHz to 432.150 MHz: CW (Morse code)
- 432.150 MHz to 432.500 MHz: SSB (Single Side Band)
- 432.500 MHz to 432.800 MHz: Beacons
- 433.000 MHz to 433.375 MHz: FM Simplex
- 433.375 MHz: National Calling Frequency (FM Simplex)
- 433.400 MHz to 433.575 MHz: Repeater Outputs
- 434.600 MHz to 434.975 MHz: Repeater Inputs
6 Meter Band (50-52 MHz)
- 50.000 MHz to 50.100 MHz: CW (Morse code)
- 50.100 MHz to 50.500 MHz: SSB (Single Side Band)
- 50.500 MHz to 52.000 MHz: FM
4 Meter Band (70-70.5 MHz)
- 70.000 MHz to 70.100 MHz: CW and SSB
- 70.100 MHz to 70.300 MHz: FM Simplex and Repeaters
- 70.300 MHz to 70.500 MHz: Beacons
23 cm Band (1240-1300 MHz)
- 1240.000 MHz to 1240.800 MHz: ATV (Amateur Television)
- 1240.800 MHz to 1241.500 MHz: Digital modes
- 1241.500 MHz to 1242.500 MHz: FM
- 1242.500 MHz to 1246.500 MHz: Repeaters
- 1246.500 MHz to 1247.500 MHz: FM Simplex
- 1247.500 MHz to 1251.500 MHz: Digital
- 1251.500 MHz to 1255.500 MHz: Repeaters
Programming Tips
- Ensure your radio supports the specified frequency ranges and modes.
- Use the national calling frequencies for initial contact before moving to another frequency.
- Check local repeater listings for more specific frequency details and CTCSS tones required.
This list provides a general overview of popular amateur radio frequencies in the UK for CHIRP programming. For more detailed information and updates, refer to the RSGB (Radio Society of Great Britain) and other local amateur radio organizations.