AW: [Elecraft] Re: K3 Audio

[Koppendorfer Klaus]

did you use the line out ?? The Line Output
transformers of the K3, saturate at normal program levels
try Headphone out on Frontplate and you will see no Harmonic´s

73
OE6KYG
KX1 244
K2 1331
K3 115

> -----Ursprüngliche Nachricht-----
> Von: elecraft-bounces at mailman.qth.net [mailto:elecraft-
> bounces at mailman.qth.net] Im Auftrag von Ian Maude
> Gesendet: Mittwoch, 06. August 2008 09:27
> An: elecraft Reflector
> Betreff: Re: [Elecraft] Re: K3 Audio
>
> Bob Cunnings wrote:
> > If you listen to Sherwood's presentation, you'd hear him state that
> > the distortion problem he discusses occurs only when driving a low
> > impedance (speaker) load. If driving a high Z load like, say, powered
> > speakers, or using headphones, there is no problem.
> >
> There is still a bit of a problem on receive audio.  This has been there
> for some time and exists in the form of harmonics.  The 3rd harmonic is
> quite easy to see and repeatable.  I used HRD to show this on the
> waterfall after a conversation with a friend.
> You can clearly see the harmonic at..
>
> http://www.gb7mbc.net/docs/K3Audiotrace.doc
>
> 73 Ian
> > So that might explain your observations.
> >
> > Bob NW8L
> >
> > On Tue, Aug 5, 2008 at 4:29 PM, Geoffrey Downs
> > <geoffrey at downs.globalnet.co.uk> wrote:
> >
> >> Would be interesting to know the detail of what Rob Sherwood said, but
> I
> >> agree with you, Dave. The tx and rx audio on my K3 sounds cleaner,
> brighter
> >> and clearer to me than my now obsolescent FT1000MP Field even before
> >> applying any equalisation. I use either a headset or a couple of small
> >> external computer speakers.
> >>
> >> 73 to all
> >>
> >> Geoff
> >> G3UCK
> >>
> >> ----- Original Message ----- From: "Dave G4AON"
> <elecraft at astromag.co.uk>
> >> To: <elecraft at mailman.qth.net>
> >> Sent: Tuesday, August 05, 2008 9:55 PM
> >> Subject: [Elecraft] Re: K3 Audio
> >>
> >>
> >>
> >>
> >>> Bottom line to me is the K3's audio is fine. And no, I'm not on
> commission
> >>> from Elecraft!
> >>>
> >>> 73 Dave, G4AON
> >>> K3/100 #80
> >>>
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>
> --
>
> Ian J Maude, G0VGS
> SysOp GB7MBC DX Cluster
> Member RSGB, GQRP
> K2 #4044 |K3 #455
>
>
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