GB3DB 6m FM Voice Repeater

GB3DB is a more recent system than GB3DA/ER whose aim is to give broad area 6m service across Essex and fill in a gap in general national coverage. In contrast to most repeaters, it is located on a domestic site in Danbury. It has Mk3 CUL logic and Procom 6-Cavity Diplexer.

Status: RF On

Frequency Input 51.270 MHz, Output 50.770 MHz, Channel R50-6
Transceiver Based on a pair of Alinco DR-M06s (Courtesy of W&S)
20W erp, 10kHz BW
Access Continuous CTCSS-Only, Tone-H 110.9Hz, Ack='B'
Antenna Diamond CP62 Vertical
NGR TL 795 059
Locator JO01HR
Coverage Maps General 6m (Courtesy of the RMC),
GB3DB Close In , GB3DB Wide Area, ETCC Data

The ERG Gallery has pictures of the GB3DB Radios and Overall System


  • Re-licensed in Jan-2020 for potential dual mode Fusion operation along with DA and ER
  • Its big cavity duplexer was repaired by Procom-UK in 2015 following lightning damage
  • Antenna replaced in August-2020 after weather damage (and Transmitter repaired)