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A Simple and Flexible Tuner for QRP


A series L-C circuit can be used to match a low-impedance load, as presented by a quarter-wave
post 20 Jun 2024
A Simple and Flexible Tuner for QRP

Antenna Transmatch tuner Links

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HF-6M Antenna Tuner Preselector
Frequency range: 2Mc...52Mc 180m band depending on the mismatch of the antenna used and-or maximum inductance. Experimenting with the coils can be desirable

HF Automatic tuner
The atu is composed essentially of relays commanding inductors and capacitors

I built a ZM-2 QRP Antenna tuner
The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP

Informationen zum Z-Match Koppler_Selbstbau
The Z-Match coupler is a popular balanced self-assembly coupler. The circuit diagram for the individual components looks like this


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