Sounds like the power from the K3 is too high. Should be about 25 or
so watts. Actually, 20 watts drives my KPA500 to 500 watts output on
all bands. I trust the SWR as seen by the amplifier is 1.5:1 or less.
Do you get any FAULT LED indications on the KPA500? You can use the
KPA500 Utility to download and examine the fault table.
73
Bob, K4TAX
On 7/1/2019 8:05 PM, Fred wrote:
Hi,
I have a K3, P3, KPA500, KAT500 and a SignaLink for sound. Sometimes when
I transmit on FT8 running full power on the KPA500, the KPA500 will click
on/off. The power doesn't turn on/off, it seems like a relay inside. The
power meter will go to about 500 watts, then down to 0, then to abut 500
watts...and down to 0 maybe once a second. I have a short video I can send
if someone would like to see it. When I bypass the KPA500 and use 50 watts
or so just on the K3, no issues.
Please let me know if you have any questions.
73, Fred
KD8ZYD
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