Hello everyone, 14 days ago i ran in the same problem.
Took my radio to a A licensed friend of mine for doing some QSO in JT65 in 20m. RF power set at 30 watt, modulation level adjusted, swr was fine. After a while we noticed very low power on the display.
We did a factory reset but no change.
First thought PA stage get burned, then we made some test.
We measured the following results.
1,9 MHz 0,8 Watt
3,55 MHz 1 Watt
7,05 MHz 5 Watt
10,12 MHz 28 Watt
14,1 MHz 30 Watt
15 MHz 35 Watt
18,1 MHz 30 Watt
21,2 MHz 35 Watt
24,95 MHz 40 Watt
28,5 MHz 60 Watt
50,1 MHz 25 Watt
2m/70cm are not affected.
First it seems the filterboard does something stupid, but then we noticed
the ALC display did not show correct, except on 10m.
Very strange behavior.
I did not try to repair the radio because it is still in warranty.
So radio is sent back to the seller for repair.
Today i got a call from him and apparently the driver stage got toasted.
Now i have to wait until second week in January.
I'm curious what comes out in your research.
73 de DO1KLM
Sigi
