Radio linked repeater sketch

I am looking for a sketch for a linked radio repeater.

Is there one available that has the basics such as :

Ctcss encode decode
1750 tone burst access
PTT / timers per output
DTMF control - optional for shut down and parameter changes .
Link enable / disable
PTT dekey beep

This would be for a repeater connected to a simplex link radio .

Thanks in advance.


Post a link to the datasheet for your radio device.


That was one of the first things I built with a micro processor back in the mid 70s. The call sign was GB3MA and was Manchester's first 70cm repeater. Never seen them sold as a compleats unit.