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Triplexer HF-50 MHz-144Mhz-432 MHz
Necessita' di ricevere segnali da tutte le direzioni, senza dover stare a ruotare continuamente le antenne direttive
post 11 Mar 2024
Antenna Duplex duplexer Links →
4-way Splitter/Combiner
The Spectrum-Analyser screen shows a frequency of 144.370 MHz were the marker is at that moment
6m duplexer construction
Construction of a set of WB5WPA style 6 meter notch duplexer
A triplexer for shortwave, 2 m and 70 cm
A triplexer for shortwave, 2 m and 70 cm I used CuAg wire for the coils, normal Cu wire should work too. The capacitors are 500 Volt types, you may order them here
A low cost UHF/VHF duplexer
Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box
Accoppiatori d'antenna-coupler antennas
Accoppiatore a cavo per due antenne d'impedenza singolo a 52 OHM
50
The Spectrum-Analyser screen shows a frequency of 144.370 MHz were the marker is at that moment
Construction of a set of WB5WPA style 6 meter notch duplexer
A triplexer for shortwave, 2 m and 70 cm I used CuAg wire for the coils, normal Cu wire should work too. The capacitors are 500 Volt types, you may order them here
Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box
Accoppiatore a cavo per due antenne d'impedenza singolo a 52 OHM
Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal