[Elecraft] S-Meter Calibration

[Alexander Sack]

On Wed, Apr 20, 2011 at 2:58 PM, Alexander Sack <pisymbol at gmail.com> wrote:
> Hello:
>
> Is it just my unit or did your K3/100 from the factory assembled have
> the S-Meter way off in terms of calibration?  I have #4854 which was
> assembled from the factory and the S-Meter was WAY OFF.  I mean 50uV
> was reading S3.  With my Elmer's scope and the nice tuning directions
> in the manual, we got it fairly accurate (S9 is 50uV without PRE on
> all bands).
>
> I am just curious if this was standard operating procedure?
>
> Side question, notice what I said, S9 without PRE.  Yet the manual
> wants you to turn on PRE.  Why?  That doesn't make any sense to me.
>
> (Apologies if this has been rehashed before, I didn't do a thorough
> search on this topic)
>
>

I do want to point out that I DID install the KAT3 and KXV3A (updated
version for I/F out) after factory install.  I just thought that maybe
the addition of the I/F could have been the culprit for recalibration
(now I have to go back and look at the KXV3A install instructions to
see if I this is complete pilot error on  my part).

I still want to know about setting PRE on when tuning.  That still
doesn't make too much sense.

-aps