[Elecraft] KX3 and Data modes

Don Wilhelm w3fpr at embarqmail.com
Tue Mar 13 14:58:44 EDT 2012


Yes, Ed did make that statement BUT ---

The freshly calibrated slug does not make any difference - read and 
understand the specification correctly -  the accuracy is speced at +/- 
5% OF FULL SCALE right after calibration.  So the error with that slug 
is 1.25 watts - and that applies anywhere on the scale.
A reading of 11.5 watts can be anywhere between 10.25 watts and 12.75 watts.
That kind of specification is typical of analog wattmeters - they all 
have a spec in a percentage of full scale.

Many good digital wattmeters have a spec that is a percentage of the 
reading rather than a percentage of full scale.

I have ranted about those facts of wattmeters many times on this reflector.

73,
Don W3FPR

On 3/13/2012 2:33 PM, Doug Smith wrote:
> I think he stated earlier that he was using a freshly calibrated 25H
> element.
>
> 73,
> -Doug, W7KF
> http://www.w7kf.com
>


More information about the Elecraft mailing list