The duplexer This is a very nice project, especially for those Icom
706 that have an HF / 6m antenna connector as well as a VHF UHF connector
Duplexer per la banda 144/430 MHz, IW1FYV Lo stadio VHF e' un filtro di Chebishev Passa Basso a 5 elementi con un'attenuazione di circa 50dB/ottava al di fuori della banda passante
33 MHz diplexer, N9ZIA Ahead of the IF amplifier on the 2nd mixer's IF output is a circuit called a diplexer
Make yourself a Diplexer, VK3ATL Here's a simple way to do it automatically, with very low loss, and so you can transmit, listen or scan at will
