[Elecraft] Transmit audio frequency shift on USB?

[goldtr8 at charter.net]

Have you done the ossilitor (sp) calibration via a zero beat to WWV?

Not only will this have your tx & rx wrong but your filters will not be 
centered properly for the math to work for the DSP.

Depending on temperature there can also be some drift so make sure 
everything is up to temp and stable.

~73
Don
KD8NNU


On Mon, Jul 25, 2011 at 6:34 AM, Torrey Mitchell wrote:

> I'm having a ball with my newly assembled K3!  I was on the air (USB,
> 14.170) this weekend trying to fine tune my audio equalization.  Two
> gentlemen told me I sounded great.  However my audio was smoothest 
> 30-50 Hz
> above my operating frequency.  They are both audiophiles.  My RIT was 
> OFF.
> One based his opinion on critical listening.  He said the audio was 
> very
> good at our mutual frequency but had a slight rasp to it.  This went 
> away
> about 30 Hz higher.  The second gentleman was using a FLEX 5000.  He
> indicated that my signal "measured" 50 Hz higher than our stated 
> operating
> frequency.  He recorded my signal at both frequencies.  It was clear 
> that I
> sounded best 50 Hz high.
>
>
> I am using the TX ESSB option set at 3.0.
>
>
> Do these observations make sense?  If so, do I need to make an 
> adjustment?
> It was just the 2nd hour on the air with the new rig, so I'm not 100% 
> sure
> that my fine tuning was turned on to 3 digits past the decimal.  But 
> could
> there be some other explanation?
>
>
> Thanks and 73,
>
> Torrey N9PY
>
>
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