WSEZ468

Components needed, Surecom SR-628 duplex controller 1- SR-628 cable to match base radio 1- SR-628 cable to match 1/2 watt fixed radio 1 or 2 dummy load to replace the fixed radio antenna and preferably the mobile radio antenna also 2 low wattage HT’s and 1 base station The base station and antenna are connected as usual and the SR-628 cable will receive audio from the base station and PTT it when the the 628 receives audio from the fixed HT The other 628 cable connects to the fixed HT and receives audio from it and activates PTT on it when it hears audio from the base station the base station can be set to any band and frequency but both HT’s should be on low power (hence FRS) and have the same ctcss tones programmed to avoid unintended base station transmitting so you push PTT on your mobile HT the fixed HT receives that, triggers the 628 which triggers the base station and visa versa some settings experimentation is needed and full control of the 628 can be done through DTMF codes from the mobile HT Regular monitoring of the system is highly recommended

Yes I use it all the time and I’ve found that FRS8 does not desense on any of the usual GMRS frequencies I use and the low wattage combined with the dummy load antenna and ctcss limits interference to other radios.

If you have a spare low wattage FRS capable HT laying around take a look at the Surecom SR-628 duplex repeater controller. Set the HT to a FRS channel on 1/2 watt with ctcss code and a dummy load instead of an antenna. do the same with the HT you want to carry then you can use any channel you want on the base station.

I’m another new guy checking in! Looking forward to learning about GMRS and repeaters and of course radio programming! Glad to be here!