GB3RD is located at Aldworth in Berkshire, approximately 11 miles north west of Reading. The locator square is IO91JM.

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ChannelRV54 (R3)
Transmit Frequency145.675 MHz
Receive Frequency145.075 MHz
AntennaC&S Antennas 7073 colinear, gain 5.5dBd at 145 MHz
ERP14dBW (25W)
Access methodCTCSS 118.8Hz (J)
Base stationKey Radio Systems KF510 base station
LogicTVRG/Key internal logic
ConfigurationSingle aerial working using a Wavetech 4 cavity duplexer
CoverageClick here to view predicted coverage (60k). Plot 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.