#qdx SI5351A doubles frequency at TX! #qdx

Peter Jacobi


My QDX is working correctly, when I start it with 6V.
I can turn it up to 9V and it continues working correctly.

When I reset it with 9V I get no output:
Pressing Transmit in the Test-Console doubles the frequency at CLK1 of SI5351A!
Releasing Transmit and the Square-Wave is back to the Band-Frequency.

Receive Mode / and TX, when it is working:

TX, when it isn't working:

Thanks and regards,
Peter DL4PJ