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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
Triplexer HF-50 MHz-144Mhz-432 MHz

Antenna Duplex duplexer Links

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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


Take off angle of horizontal antenna

Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane

A remote antenna switch

A remote antenna switch An abiding dislike for bundles of cables running on the exterior of my house, so a remote antenna switch seemed like a good idea

5 element yagi antenna for 28.5 Mhz

5 element yagi antenna for 28.5 Mhz Gamma match will be made with a 1/2 "aluminum tube and a 75 cm coaxial piece of RG8 without sock and sheath inside the tube