What is a Duplexer? How it works and common failures

In this video, David from our tech department at Buy Two Way Radios explains what a duplexer is, how it actually works, and some common failure points. XLT Communications GMRS Mobile Duplexer (50 Watt) https://www.buytwowayradios.com/xlt-dp-gmrs-50.html TX RX Systems Vari-Notch Rack Mount Duplexer (450-470 MHz, 5 MHz Split) https://www.buytwowayradios.com/rxtx-28-70-02a.html #duplexer #gmrs #repeaters #amateurradio #hamradio