This seems to be a complex problem because I do not understand what is happening. I will try to explain as best as I can.
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QMX mid bands built for 12 volts and Z-11 Pro auto tuner.
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I start on 40 meters and go to hardware then SWR tune and start the tune. The tuner light move and ends when a <1.5 SWR is reached. I then go to iambic and send CW at about 20 wpm. After about 10 dits the tuner jumps up to over 4 and the S protection letter shows on the screen after the last number. I cycle the menu, go to hardware, SWR tune and it shows <1.5 SWR. I go back to normal CW and the same pattern shows up again.
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It happens on multiple bands and is frustrating because I can't complete a POTA contact let alone a ragchew.
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My sBITx is also low power 1 - 4? watts and does not do this action with the tuner.
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Any ideas where to look?
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73, Dean/ N2TNN
