Sinclair Q-202G Duplexer, 4 cavity 350 Watt 148-174 MHz Excellent Condition - Nationwide Radio & Eq.Posted in Hackaday Columns, Original Art, Radio Hacks, Slider Tagged amateur radio, duplexer, handy talkie, network, repeater, simplex, The $50 Ham, traffic Search Never miss a hack.The seller is “diyelecmall108″ and is located in ShenZhen,Guangdong. This item is in the category “Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Transceivers”. The item “UV UHF VHF dual band spectrum analyzer with tracking source tuning Duplexers” is in sale since Sunday, December 24, 2017.
This is done by splitting the receiver and transmitter functions so the two do not conflict with each other during operation. Duplexers acquired from a manufacturer are tuned to the repeater frequencies and contain the required number of cavities required for that particular repeater.
