Uploaded June 2023 | Updated September 2026, 1 hour ago

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This video deals with some unexpected problem faced by almost one third of all High-band QDXs manufactured - low power output on 10m band.

QDX High-band digital transceiver for Ham Radio covers amateur radio digital modes frequencies in 20,17,15,12,11 and 10 meter bands. 11m band is not a Ham Radio but CB band, nevertheless, there is, obviously, some FT8 mode activity among non-amateurs too, so this radio for them also.

I have tested my own 9V QDX and you can see the results of my tests.

I also discuss the possible ways to cure the problem. The QRPLabs is aware of the problem and working busily to come up with the solutions. Below is the link to the article by Hans Summers G0UPL , the father of all the QDX/QCX,QMX radios himself (copy this link into your browser , if needed):

groups.io/g/QRPLabs/message/100571

Here is al link to my other video on the FT8CN app for Android:
youtu.be/EmM8Kv1uOOw

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73!Linas LY2H