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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.
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The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP (low power). It utilizes the well-known Z-match circuit, which is especially useful for balanced antennas (like dipoles and loops).
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.
12 lip 2022 · A quick list of ATU-10 Features: 0.91″ OLED Display that shows Power, SWR and internal battery remaining. USB-C Rechargeable LiPo 1.7Ah. Grounding Lug. Bypass Mode (When I set to this mode however it would tune anyways) Latching Relays (No power needed to keep in position. Hold tune with ATU off)
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.
The Ultimate transmatch. Usage and benefits of transmatch. A pdf document from a QST article made available for novices and beginners by ARRL. A Portable Antenna Matching Unit. A small HF antenna tuner project for qrp operations. Includes circuit diagrams pictures and test results by GW4ALG. Remote Antenna Tuner. Remote antenna tuner.
ZM-2 – BNC Connectors – Prebuilt. $ 105.00. ZM-2 with BNC – Prebuilt and tested. The ZM-2 is a state of the art Antenna Tuning Unit. It is not just another standard tuner circuit repackaged. The ZM-2 has no inductance switching to mess with, just two variable capacitors to tune.
