[Elecraft] KPA1500 SWR meter

[Mike Crownover]

I have noticed that after my KPA1500 gets above 50C the SWR indicator light starts to show intermittent high SWR. My KPA500 did not do that. I'm using resonant yagis and the digital SWR meter shows 1.1:1 and doesn't change nor does the SWR indicator on the K3S. It seems the SWR indicator lights are acting independent of the meter on the KPA1500 screen. RF? I have not had any faults or shut downs as a result of the indicated high SWR. The amp operates wonderfully, but the indicator lights are a bit bothersome. Anyone have similar issues?
73,
Mike AD5A