[Elecraft] Noise Power Ratio and the K3 with new synthesizer?

[Scott Manthe]

I suspect that the "Noise Power Ratio" test was used because that is the 
only test that Adam could use to get his beloved Icom gear near the top 
of the list. Mr. Farson has had a website devoted to Icom gear for many 
years, so I'm not sure if this test could be considered even remotely 
objective.

Here is a NPR tutorial from another source, for those interested and 
technically proficient enough to investigate further.

73,
Scott, N9AA

On 3/12/15 10:53 AM, Chip Stratton wrote:
> Adam Farson VA7OJ has an article in the current March/April 2015 QEX
> discussing the use of Noise Power Ratio (NPR) to help define a
> receiver's performance in a crowded band in a way that might be more
> illuminating than the simpler two tone tests. Its an interesting
> discussion which makes some sense, but then I'm not anywhere close to
> an expert in that field.
>
> In any event, he has figures from a number of transceivers, including
> a couple of K3s which no doubt do not have the new synthesizer. The
> K3s still performed very well relative the the rest of the field in
> these tests, though they were slightly behind the IC-7700, IC-7800,
> and TS-590S.
>
> Which of course makes me wonder how the K3 with new synthesizer would
> perform in this arena?
>
> >From a guy with a mild metrology addiction...
> Chip
> AE5KA
>