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Low/No RF output help (QRPlabs assembled)


 

Hello QRPers,
?
I'm having an issue with a new midband QMX (which is likely my fault!). I have no output power showing in my diagnostic screen after doing some testing with a a 20W QRPlabs dummy load. The coax is several years old now (Amazon special) and that's probably the cause.?
The QMX screen no longer shows the S-Meter upon transmit and the dummy load doesn't heat up anymore. The diagnostic screens show 0 Watts as well. It DOES have some RF going out though, as I did test this with an FT891 on 20/40m with the dummy load.?
I need some help finding the issue.
Thank you!

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