This is my project to build the DX Commander multi-band vertical antenna. I ordered the kit from Callum (M0MCX) and it’s well designed and packaged. The antenna resonated (~1:1 SWR across the entire band) for me without a tuner on the following frequencies: 40m, 30m, 20m, 15m, & 6m. The 17m band came in at about 1.6:1 on an SWR sweep, so the IC 7300 internal tuner handled it without any problem.
For reference, “The DX Commander’s” YouTube channel is: https://www.youtube.com/c/DXCommander/videos
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