PGXL Fault

Bill NE1B

This could be related to the clicking, aka thermal expansion/contraction between 60C and 70C. After moderate use chasing DX during yesterday's 6 meter EU-NA, this morning my PGXL tripped while I made a transmission. I immediately saw a High SWR Alarm flash up on the app.

After I checked the SWR on my T11 Log Periodic with the F6600, SWR looked normal, around 1.6:1 on 6 meters. No further alarm info displayed, other than the "chart" which I have attached. However, the amplifier is now in a state of a quick key up with a fast shut down. No alarms displayed in the app or front panel. The F6600 works fine in the "Standby" mode. I shut down the amp and also unplugged it from the 240 vac, but no reset of the fault. I turned Meffa off and tested, no change. I forgot to put amp in Standby overnight, so the Vdd remained at a level above zero, but don't know if that is relevant. I will open a Help Desk ticket.