[Elecraft] K3 and Susan's audio complaint

[Mike Scott]

I agree with Lou about Susan's CW audio complaint but I did not once. When I
read Susan's plaint I thought that she probably has not gone through the K3
audio modifications. There was a time that I could not listen to the K3 in
CW mode for very long; it was like fingernails scratching on a blackboard.
The sound so grated on my nerves that I needed to turn it off or stop
operating CW altogether. Somewhere along the path after the audio low pass
filter, the audio output coupling capacitor modifications, and firmware
modifications enhancing LF response the K3 CW mode audio mellowed for me,
actually night and day. The other thing that make a difference is AGC
settings. AGC settings effect IF gain which can raise background noise
level. All of the comments about running RF gain lower come to play also but
I now find that I normally run full RF gain and I am not bothered by audio
issues anymore. 

 

So Susan, what have you done to fix your audio problems in CW? I propose
that you can remedy this.

 

 

>>I'm surprised you find the CW mode so noisy.  I find that one of the best

things about the DSP in CW mode is that the more you narrow it, the more the

noise disappears.  If the signal is strong enough, I can get rid of the

noise completely.  Lou WA3MIX

 

AE6WA

Mike Scott

Tarzana, CA