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Antenna L-Tuner
Very common among antenna tuners is the Pi circuit, also known as the Collins filter
post 19 Sep 2024
Antenna Transmatch tuner Links →
Semplice Accordatore HF
Nel mio caso ho optato per due bobine, la prima di 11 spire avvolte su supporto di 2 cm. con del filo argentato di 2 mm, sperimentalmente si devono trovare le posizioni, sulla bobina, con l'ausilio di una pinzetta
Semplice Progetto Z-Match Tuner per HF
Nella mia versione non ho previsto la possibilita' dell'uscita bilanciata
Single Coil Z-Match Tuner
My favourite antenna tuner is the single coil Z-Match. I tend to use ladder-line feeder instead of coax, so I believe a tuner designed for balanced feeder is a much better solution than a T-Match
Symmetrischer Antennen-Koppler
This is a coupler from Christian, DL3LAC. The coupler is remotely tunable and it is fully symmetrical
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Nel mio caso ho optato per due bobine, la prima di 11 spire avvolte su supporto di 2 cm. con del filo argentato di 2 mm, sperimentalmente si devono trovare le posizioni, sulla bobina, con l'ausilio di una pinzetta
Nella mia versione non ho previsto la possibilita' dell'uscita bilanciata
My favourite antenna tuner is the single coil Z-Match. I tend to use ladder-line feeder instead of coax, so I believe a tuner designed for balanced feeder is a much better solution than a T-Match
This is a coupler from Christian, DL3LAC. The coupler is remotely tunable and it is fully symmetrical
23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency
50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection
Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free