I built a ZM-2 QRP Antenna

 I built a ZM-2 QRP Antenna
    The emtech zm-2 antenna tuner is a nifty little portable transmatch for qrp
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post 06 Oct 2026



Antenna Transmatch tuner Links →

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Transmatch automat
    Working: 3.0 to 30 MHz. Input power: Over 2500 W PEP


Transmatchs varios acopladores de antenas
    As a reference for these projects, variable capacitors of around 410pf, common in valve receivers, are in most cases perfectly usable for low or medium powers


Tuner W1FB scheme Compiled
    Variable capacitors have a capacity of 200 pF, for a power of 2 kW at the peak, the gap between the plates should be about 2 mm. L1 - coil with slider, maximum inductance 25 mH. L2 - 3 turns of 3.3 mm bare wire on a 25mm mandrel


Tuner for HF
    Scheme tunner for HF


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