The Key KM3000 / KM4000 is a VHF mobile transceiver available for £20 + postage from TVRG (contact Chris G4CCC - https://radarc.org/tvrg).

The KM3000/4000 are both similar but the 4000 was a result of some components becoming obsolete. These are set to TVRG for 15W RF output but are capable of 25W, but for amateur voice conversations they may get a bit hot at this power level.

Operating instructions

PDF with info on modifying these radios for packet Thanks G4KWT

Key programming software

Key programming notes