Re: Fried my qcx+ finals...


Alan G4ZFQ
 

I'be managed to fry the PA of my qcx (I think) by unplugging the antenna while the tx was in WSPR mode.
So I've determined that the TX now outputs about 200mW in a 50ohms load.
Yannig,

This failure is not properly covered in "troubleshooting".

First check for continuity of the LPF with an Ohm meter.

Measure the voltages on Q6, Q1-Q3 both RX and TX.
That may show some clue.

73 Alan G4ZFQ

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