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29 cze 2021 · There are tuned single-band whip antennas, with BNC connectors, available from MFJ and probably other sources. I have gotten a 20 meter one and also a set of 8 loading and coils and one telescoping whip, all through ebay.
Works great at 100 watt, easy to tune, compact Time Owned: 0 to 3 months. This little tuner fits in my go kit and works great. To minimize stress on the tuner, I don't tune with the radio. I connect an antenna analyzer to the tuner and adjust for minimum SWR. Only then I connect it to the radio.
17 cze 2020 · I bought a new MFJ-936B loop antenna tuner from them and tried using it with a Kenwood TS-820 on phone with a 3/8" copper pipe loop element about 5 feet in diameter. I don't remember which band I was working but the loop was appropriate for the band, as per the manual.
I decided to build a homebrew antenna tuner because I needed a passive pre-selector network to match an experimental end-fed wire antenna to my QS1R SDR receiver. Please Note: In the last version of my modified FRI-Match (diagram above), I replaced the 470 pf variable capacitors with 500 pf.
The ZM-2 ATU is a simple manual antenna tuner that you can purchase either as a fun-to-build kit or fully assembled and tested. I’ve owned my ZM-2 for many years, and I believe every QRP field operator should have one.
11 gru 2016 · My antenna of choice for portable ops is 60′ of old #18 separated speaker wire, 30′ of haphazardly placed counterpoise of similar wire, and a homebrew L-network tuner. It loads and works fine on the pre-WARC bands 40-10 meters.
10 mar 2020 · I’ve had success using a homebrew Z-match tuner. Companies like Pacific Antenna and QRP Guys sell Z-match tuner kits that will handle balanced lines. They offer tuners that are small and light enough for QRP-portable use.
