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  1. S

    SWR Help Needed

    So I got my new radio Magnum 257 HP and tuned it to Ch 1 and set the calibration and the switched to SWR mode, A reading of 1.4-1.5 great, so then I went to channels 20 and 40 and noticed that when I switch the meter to calibration mode and then key up and try to calibrate. I get the SWR meter...