1. Needs to monitor the receiver for a carrier. If a carrier is detected open the squelch and connect the receiver’s audio to the transmitter’s input and lastly turn on the transmitter. 2. At the end ...
The required hardware up to version 4.3. The full project link, here: https://yo3hjv.blogspot.com/2016/02/low-profile-duplex-uhf-repeater-for-ham.html?m=0 The ...