[Elecraft] KX3 Tuning noise

[gt-i at gmx.net]

Hi Mark,
I've recognized this noise after running the KX3 for 2 month or so, made 
more than 400 QSOs before I noticed it.
Now that I know it is there I'll always hear it ! I asked Elecraft 
support and they confirmed it exists.
I measured the noise on 10mtrs using the built-in audio dbV feature - it 
says 11 dbV above noise (no antenna connected).
Thats a bit too much I think.
I'm also pretty sure that kind of noise wasn't as strong as now during 
all these QSOs I made before...
Any ideas?
73
Gernot,
DF5RF KX3 #1526