Many thanks to Mike, N5WNG, and Jeff, W7BRS, for comments.
I'm measuring the output power on an external power meter and the
internal power meter is pretty well spot on. I have a KAT3 and I've been
doing the ATU TUNE (10W) before I key at 50W or whatever.
I noticed that the PA TEMP was set quite high (27 deg C) so I turned it
down to 22.
I've just upgraded the firmware to 2.63 and it hasn't solved the problem!
73
Bob MM0RKT
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