[Elecraft] K3 - DSP ringing on CW & SSB

[Berni G0IDA]

Hi everyone,

I have had my K3 almost a week and I am very happy with it :-)

I do however hear what I would describe as a ringing sound (and always), 
perhaps caused by the DSP.
When I tune to a CW signal with any filter configuration although less 
pronounced using 250Hz filter the tone of the signal is good. But when I 
tune away from it and QSY up the band & the tone gets higher in 
frequency I can hear what I would call ringing and it is very slight but 
enough for it to be anoying.

This does not always happen and may be if I press a combination of keys 
like NR, NB, WIDTH, SHIFT it causes this to go away, I haven't worked 
out if it is indeed a combination of keys or not.

I've tried a different set of headphones just in case the headphones 
(Heil) were rattling but it is the same.

This happens too on SSB as you tune away from the signal and is randomly 
there or not.

Perhaps there are settings which optimize this?
I have the RX EQ set up to cut the last 2 high frequencies off by 6dB 
and 10dB but it seems to make no difference how I set these.

Does anyone else hear this very mild "Ringing"?

73's
Berni
G0IDA
K3 #1474

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