[Elecraft] KX3 firmware rev. 1.52: CW-in-SSB feature now allows keyer speed adjustment

[Wayne Burdick]

Not sure why this was posted to the Elecraft reflector, since this was a limited discussion about firmware being field-tested by several customers.

In any case, I'll be investigating this issue right away.

73,
Wayne
N6KR


On Jun 12, 2013, at 12:53 PM, Jim Sheldon <w0eb at cox.net> wrote:

> I just tried this and find that Reed is correct but it isn't just on 80 and 40 because they are LSB, it happens in LSB on all bands.  The SSB is clean until you hit one DIT and then the distortion enters the picture.  The distortion is bad enough that your speech is all but unintelligible.  Turning off CW-in-SSB clears the problem and appears to do so even without recycling power on the radio.  At least it worked that way on 20 meters (the last band I tested).
>  
> Jim Sheldon - W0EB
> 
> > I'll try to duplicate this. I suggest turning off CW-in-SSB until
> > we resolve it.
> >
> > Wayne
> >
> >
> > On Jun 12, 2013, at 12:21 PM, Reed <w4jz at bellsouth.net> wrote:
> >
> >> Wayne, I noticed a problem when going to  80 & 40, guessing it is
> >> because they are LSB, I hear really bad SSB transmit distortion.
> >> I'm using a IC-746PRO as receiver.  Transmitting into a dummy
> >> load.  CW tone sounds good.  When I disable CW in SSB & turn rig
> >> off and back on SSB audio sounds good, but as soon as I turn CW
> >> in SSB on and transmit in CW then talk in mic I hear the really
> >> bad distortion.  This doesn't happen on USB.  I just tested this
> >> on USB on 40 meters and works fine, but when going to LSB and
> >> after sending in CW the distortion returns when talking into mic.
> >>
> >> Reed  W4JZ
> >>