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Z-Match Antenna Tuner


Z-Match Antenna Tuner
This Z-Match is a link coupled all-band tuner. Two all band tank circuits cover 3-14mhz and 14-30mhz. The tank output links are selected with a very heavy duty SPDT rotary switch
post 02 Jul 2024


Antenna Transmatch tuner Links

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Coupled Tuner LCT
The Link Coupled Tuner, or LCT, inductively couple an RF signal from the Transceiver to the Antenna System, and also in reverse

Controlled 80m antenna tuner
I decided that what was needed was some means of controlling the capacitor from the operating position, and so I developed a means to accomplish this

De L-Tuner
The L-tuner consists of only two components: a coil and a capacitor

Halfwave wire lengths 12 thru 40 meters
This project was the result. I ordered the variable capacitors from Emtech, they are the type used in the Emtech ZM-2 tuner. They are dual gang polyvaricons that are 266 pf per section

Homebrew SGC SG-237 Control Box
it with a 65 foot long inverted-L antenna and I can operate all bands from 160m to 6m with 100 W power levels and this coupler has no problem


Antenna splitter per VHF-UHF per quattro ricevitori

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

Kits and Components

Amateur radio kits by Kanga US

50MHz to 28MHz RX Converter

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