[Elecraft] K3 - DSP ringing on CW & SSB

[Brendan Minish]

If you have the audio effects turned on and only one speaker you could
have comb filtering and this might sound like ringing 


73
Brendan 


On Sat, 2008-08-30 at 13:34 +0100, Berni G0IDA wrote:
> Surely that means every K3 has this but there seems to be no complaints 
> about it on CW or SSB?
> I'm listening now to the YO contest and playing with settings and it is 
> quite marked ringing :-(
> 
> Is there a way of reducing this?
> 
> Cheers,
> 
> Berni
> G0IDA
> 
> n4lq wrote:
> > Berni
> > This sounds like harmonic distortion, not ringing. It's the same thing 
> > people are seeing on their PSK waterfalls and calling it a "ghost". 
> > There's not much you can do about it.
> >
> > Steve Ellington
> > N4LQ at insightbb.com
> > ----- Original Message ----- From: "Berni G0IDA" <wberni at googlemail.com>
> > To: <elecraft at mailman.qth.net>
> > Sent: Saturday, August 30, 2008 5:42 AM
> > Subject: [Elecraft] K3 - DSP ringing on CW & SSB
> >
> >
> >> 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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> >>
> >

-- 
Don‘t complain. Nobody will understand. Or care. And certainly don‘t try
to fix the situation yourself. It‘s dangerous. Leave it to a highly
untrained, unqualified, expendable professional.