[Elecraft] PRO II vs K2

[Bill W4ZV]

Brett Gazdzinski wrote:
> 
> I would say the K2 is better than the pro2, not quite as good as the pro3.
> The pro 3 was improved quite a bit, the noise reduction really works well,
> as do the filters, its not as bothered by close in signals as the older 
> units,
> and its got less noise, but still quite a bit compared to the corsair I 
> have.
> 

In fact, there is ZERO difference in close-in signal handling between the
Pro2 and Pro3 as measured by Sherwood.  Given measurement uncertainty and
sample variation of a few dB, it would be difficult to have two rigs be any
closer in the measurements Sherwood has listed below.  For the key metrics
of IMD, BDR, MDS and phase noise, they are identical rigs in performance. 
This should not surprise anyone because there was no significant change in
the front end design from the Pro2 to the Pro3.

http://www.sherweng.com/table.html  (scroll to 75 dB IMD)

73,  Bill  W4ZV
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