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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.
11 gru 2016 · Basic external antenna tuners available for well under $100. The MFJ 16010 is specifically designed for random wire use and they offer a QRP-specific antenna tuner too. I personally use an LDG Z-817 .
My homebrew antenna tuner is capable of handling 100 watts if I need to use it with my IC-7200 XCVR. I will publish the results of my experimental tuner on this page as I progress through variations of it.
18 kwi 2020 · A well-designed Z-match tuner has a high Q and is more efficient (less lossy) than other types of tuners. The fixed inductor simplifies construction (no taps or rollers needed). Using a toroid inductor and some small poly-film variable capacitors, the Z-match can be built into a very compact package.
This homebrewed antenna tuning unit also incorporates a 50-ohm QRP dummy load, power meter (1 or 10 Watts full scale), and SWR meter. Switched inductor L match tuner. A 10 to 80 meters band qrp antenna tuner by KC8AON, based on Steve Weber, KD1JV "ALT or Altoids L Tuner". Short Whip Antenna Tuner.
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. The antenna will mount right on the radio, and with the built-in mic and speaker, you have an HF walkie-talkie.
Basic multi-z antenna tuner for QRP. Easy to tune low-z and high-z antennas. This is just an experiment while testing it with my 40m EFHW antenna.
