[Elecraft] [K3] RX audio distortion on FM

[Pete-Astound]

Afternoon Don and the group,

Thanks for the quick response..

We're running the stock 2.7 filter in slot 3 and the FM 
filter in slot 1..  CW and SSB all running fine with no 
issues.. In fact, the FM didn't sound half bad coming thru 
the 2.7 filter while playing around with it this afternoon.  
Filter has not been moved since the day I put it in, just 
added the KFL3B-FM to slot 1.  I've gone thru the config 
process and made sure everything was on and verified that in 
FM mode, XFIL1 appears on the screen.  I setup/verified the 
filter options using the K3 utility last night and all 
seemed well there..  I did noticed last night once 
everything was installed that the background static was a 
lot higher when I kicked it into FM mode so I'm willing to 
bet I am over driving the audio path somewhere.  Strictly 
using the FM filter for FM..  As mentioned I have not had 
any other issues with audio quality on any other mode until 
I try to listen to anything on FM either on 10 or 6. Other 
than that, radio (Serial # 1051) is stock with no other 
modifications..  Since the bands are now pretty dead, I am 
doing all the testing with my 817 in house.  As mentioned, 
TX audio sounds really good, the RX audio though sound just 
plain distorted as though it were being over-drivin or I'm 
not quite centered in the filter passband..

Pete - WD6DKW