I only tested it at 20 meters but I managed to get a good match with the half wave cable. I used it recently during a POTA activation and managed to make a few contacts despite my antenna costing less than 20 commissions. It's well built and a handy little lightweight device for adjusting portable antennas. You can buy this directly from the QRP Guys as a kit for a higher price, so buying a pre-assembled version seems like "a no-brainer".
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