I'm fairly new to GMRS and decided to buy a Motorola Radius GR300 UHF repeater off ebay. It is in working order with a duplexer and the Motorola RICK. I had some questions about the basics that I would appreciate some help on...
First off, I have successfully be able to program both the Tx and Rx for each unit (Motorola M10's). When programming I saw the original frequencies programmed were Rx 469.56250 and Tx 464.56250 on both M10's. I want to changes these to be Rx 462.57500 and Tx 467.57500.
Knowing this unit was in working order before, I assume the duplexer was tuned to the previously programmed frequencies. Being new to this, I am not sure if the the frequencies I want to change to will require re-tuning the duplexer.
Additionally, I am not sure I completely understand how having each M10 programmed to the same Rx and Tx between units works when it comes to repeating a signal... mentally it's not clicking for me.
Any information you can provide is greatly appreciated!