Radio amateurs use at least five different and incompatible amateur radio digital voice modes on the VHF/UHF bands, D-STAR, Motorola's DMR, dPMR, Yaesu System Fusion C4FM and FreeDV

Of those D-STAR, DMR and C4FM have widespread repeater networks and there is currently one dPMR repeater GB7RR.

Yaesu supply the DR-1XE dual band repeater which can operate in both Digital SystemFusion (C4FM) mode and the traditional Analogue FM mode. It features an Automatic Mode Selection function.

D-Star for Beginners (2014)

£5.92

By Brian Schell

Buy on Amazon

FreeDV was initially developed for HF but is now being used at VHF as well. It is a free software solution for digital voice making use of your PC's soundcard, see

Maps showing the D-STAR, DMR and C4FM repeaters are available on the UK Repeater website.

FreeDV - http://freedv.org/

D-STAR Repeater map - http://www.ukrepeater.net/d-star.htm

DMR Repeater Map - http://www.ukrepeater.net/dmr.htm

Yaesu System Fusion C4FM Repeater Map - http://www.ukrepeater.net/fusion.htm