[Elecraft] KX3 generating signal

[Roger Meadows]

Today when operating QRP, the gentleman I was at the park with wanted to
compare receiving a CW signal. We weren't comparing rigs but antennas. He
had a FT 817.

When he tuned to the frequency I was listening to it sounded like someone
was tuning up on frequency on his radio. I changed frequencies and the
noise went away.  When I tuned back to where he was, it came back. We could
only hear it on his radio but my KX3 was definitely generating the signal.

This was on 40m around 7020.

What would cause this? It does not seem normal.
-- 
73,
Roger Meadows
AE4RM