If you have a camera pointing at the amp, look for the "*" when you key
down...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 12/13/22 07:47, dave ingebright wrote:
Hello-- I have a 3 yr old KPA500 that has just exhibited it's first problem. No
amplification! I am remote controlling it via the remote client over the
internet from 2000 miles away. Nothing has changed in the remote shack and no
wiring has been disturbed. There is no output from the KPA on any band. I can
see the 72 Volt B+, and the temp of the heatsink, and I can control the fan
speed, so I have control of the unit. The client shows the exciter power
through the amp and the SWR. There are no alarms and I have hit alarm reset and
had the power plug pulled and reset. I'd guess the PTT line is somehow open
but... asking if anyone has had a similar problem.
tnx de dave
WB7ELY
My KPA500 page: https://www.valhallatreefarm.com/WB7ELY/kpa500/kpa500.htm
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