GB3RL – 70cms repeater Nr Rustington


West Sussex Coastal Repeater Group

70cms analogue repeater.
Nr Rustington, West Sussex.


Technical Information:

Licensed  21/2/2024
RX & TX: Motorola GM340
Logic: TBA
Antenna: TBA
Antenna height: TBA
Power out: 10 dBW
Repeater keeper: G4WTV
Repeater output: 430.8375
Shift: +7.6
Repeater input: 438.4375
Bandwidth: narrow.
CTCSS: 88.5Hz.

Information about CTCSS.

Repeater status:

Beacon on air


GB3RL is a 70cm analogue repeater located on the South coast of the UK near Rustington in the county of West Sussex.
An access tone of 88.5 Hz is required and +7.6 Mhz shift.
The output of the repeater is 430.8375 MHz and the input frequency is 438.4375 MHz

Coverage map.

GB3RL predicted coverage map:

GB3RL predicted coverage map


The repeater with covers removed:

GB3RL 70cms repeater

The Motorola GM340 transceivers:

The duplexer:

6 pole duplexer

The logic:

Watch the video:

All credit to Roy, G4WTV, for his expertise and technical help in making this video.