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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.
Tuners. Pick from here or from the drop down menu at the top of the page to visit the individual product pages for specifications, prices, and a link to the assembly manual for your review. EFHW Antenna with Tuner 40-15m, & 80m model. Multi Z Tuner 40m-10m.
The Phoenix QRP Pocket Transmatch (antenna tuner) covers 80-10 meters; is rated for 10 watts and works with unbalanced (coax or random wire) and balanced (doublet) antennas. It uses a Z-match circuit, rather than the common "t-network" found in many tuners.
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.
10 lis 2015 · This excellent random wire antenna tuner is the classic T-Match design which is known for wide matching range and smooth operation. Dave has added a nice wrinkle – the SWR indicator employs TWO leds, not the normally seen single red LED.
MFJ 971 portable QRP tuners are also a perfect mate for any of today's ultra-compact SSB radios. They provide a convenient cross-needle type SWR/Wattmeter and feature a special user-selectable 6-Watt range for QRP operation. Their T-match tuner covers 1.8-30 MHz and tunes almost any coax, wire, or balanced-feed type antenna (a 4:1 toroid balun ...
The MFJ-971 is a compact 200-Watt portable tuner MFJ QRP transceivers. The MFJ-971 is also a perfect mate for any of todays ultra-compact SSB radios. It provides a convenient cross-needle type SWR/Wattmeter and features a special user-selectable 6-Watt range for QRP operation.
