[Elecraft] KX3 S meter calibration

[Stephen Prior]

We are waiting for the S meter absolute mode to be incorporated into the
firmware as it is in the K3, then the meter will correctly read the signal
at the antenna socket irrespective of preamp or attenuator settings.  I
agree that the current situation is somewhat odd, maybe there's a good
reason for the delay in its implementation,  but I would like this feature
enabled as soon as possible.  One of the joys of the KX3 (and K3) is the
fact that the S meter is so accurate!

73 Stephen G4SJP


On 3 October 2013 01:01, robertsmith at vom.com <robertsmith at vom.com> wrote:

>
> I'm sure this question has been asked before, but I can't find any
> information
> about it.
>
> In measuring the calibration of the S-meter in my KX3, I discovered it is
> extremely
> accurate, but only with the pre-amp engaged. With it engaged, S9 is
> indicated at
> exactly 50 uV (within the resolution of the display).  It is also very
> accurate up
> and down the S-meter range, with 6dB corresponding exactly to an S unit.
>
> I would have expected it to be calibrated with both the pre-amp and
> attenuator
> disengaged.  Is there some reason it's calibrated this way?
>
> Also, when the firuware is available that automatically accounts for
> engaging the
> pre-amp or attenuator, will the indication be referenced to the pre-amp on
> or off?
>
> Bob Smith, NY4Y
>
>
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