reading vhf
amateur repeater

Location ?

GB3RD is located at Aldworth in Berkshire approximately 17Km North West of Reading. The locator square for this repeater is IO91JM. A map of the area can be seen by clicking this Link

Click to view full size image
Click to view full size image

Technical !

Channel R3 (RV54)
Transmit Frequency 145.675 MHz
Receive Frequency 145.075 MHz
Antenna Jaybeam 7073 collinear, gain 6dBD at 145 Mhz
ERP 14dBW (25W)
Access Method CTCSS 118.8Hz (J)
Basestation Key Radio Systems basestation and associated power supply
Configuration Single aerial working using a Wavetec duplexer
Coverage Click here to view predicted coverage (60k). Plots provided by the ETCC



GB3RD provides coverage along the M4 from the M25 junction in the east along to Membury Services in the west. Southern coverage extends to beyond Basingstoke on the M3 and up to Banbury on the M40 to the north. If you have any comments or reports regarding the coverage, please let us know by using Coverage Reports.

Repeater Keeper

The repeater keeper for GB3RD is Andrew Barrett (G8DOR)
If you wish to contact the keeper please e-mail Any other queries about the Thames Valley Repeater Group should be e-mailed to the relevant member who's details can be found on the contacts page