http://elecraft.85.s1.nabble.com/K3-s-RF-Clipping-Speech-Processing-tp2483345p2487742.html
I thought KV4FZ was way over compressed during ARRL DX SSB, along with a couple of the US M/M or M/S. The only advantage I could see was taking up a lot of room with basically a "KEEP OUT" sign posted.
I've had mixed results informing folks of lousy sounding signals on both CW and SSB. A few times have resulted in finding a problem and other have told me I don't know what I'm talking about...
Still playing with the SSB settings, and learning what works and what doesn't. I do need to adjust my self monitor level as I tend to keep it very low on CW so I can pick weak signals out better when running.
Muffled guys I have been skipping over if I can't figure the call out somewhat quickly.
> From: David Gilbert (via Nabble) <
[hidden email]>
> Subject: Re: [Elecraft] K3's RF Clipping Speech Processing
> To: "Julius Fazekas n2wn" <
[hidden email]>
> Date: Monday, March 16, 2009, 1:43 PM
> During the NAQP SSB contest in January, I heard a single-op
> somewhere in
> the midwest calling CQ with a steady S9 +20db signal that
> was so
> overcompressed that he was literally not understandable.
> Nobody was
> answering him, but lots of guys were commenting on his bad
> signal behind
> his back. So I gave him a call and told him all of that,
> and suggested
> he crank back the supercharger. He backed off the
> compression three
> different times before he sounded crisp, and by the time he
> got there
> his signal was S9 +5db but FAR more intelligible.
>
> There were many South American contest stations during the
> recent ARRL
> DX SSB contest that sounded like voice-modulated spark gap
> transmissions
> ... horrible stuff. It often took several tries to ferret
> out their
> callsigns, and what they thought they gained in terms of
> quick QSO rates
> is beyond me.
>
> The great thing about the K3 is that by speaking into the
> mic with the
> monitor set loud enough to drown out your own voice (the
> one inside your
> own head even while wearing headphones), you can set mic
> gain and
> compression for your own perception of crisp intellgibility
> instead of
> maximum average power out. The two are definitely not the
> same.
>
> 73,
> Dave AB7E
>
>
>
>
> Julius Fazekas n2wn wrote:
> > Thanks Jack!
> >
> > Based on your presentation and the voice settings,
> I'll be dropping my
> > compression back a notch. Figure if it's easier
> for me to understand it will
> > be easier for others to understand me (mumble mumble).
> >
> > 73,
> > Julius
> > n2wn
> >
> >
> > Jack Smith-6 wrote:
> >
> >> I've added a page with some measurements of
> the K3's RF speech clipping
> >> functionality, including sample sound records,
> oscilloscope envelope
> >> views and spectrum analyzer captures.
> >>
> >>
>
http://www.cliftonlaboratories.com/elecraft_k3_speech_processing.htm> >>
> >> Jack K8ZOA
> >> www.cliftonlaboratories.com
> >>
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> >
> > -----
> > Julius Fazekas
> > N2WN
> >
> > Tennessee Contest Group
> >
http://www.k4ro.net/tcg/index.html> >
> > Tennessee QSO Party
> >
http://www.tnqp.org/> >
> > Elecraft K2/100 #4455
> > Elecraft K3/100 #366
> >
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