[Elecraft] RSGB RadCom K3 review posted on RSGB Members web page

[Bill W4ZV]

AD6XY - Mike wrote:
> 
> I have Radcom in front of me. The editor has two reviews, the K3 and a new
> Alinco hand held. I suppose it shows the state of amateur radio in the UK
> that the hand held makes the front cover.  The K3 reviews very well
> indeed.
> 
> So... to your figures. The 500Hz filter is 8 dB worse than the 2.7 kHz
> filter out of band but at close spacings. According to the review it
> suffers non-linearites not noted in the 2.7kHz stock filter nor the 8 pole
> INRAD the 400Hz filter. 
> 

NOT SO...G3SJX only tested the 2.7k, 1.8k and a 500...NOT a 400.  He was
speculating about the 400 because Sherwood and ARRL had good measurements
with one (Sherwood had nearly identical IMD measurements with the 500 which
I posted previously - below).  There's another problem with the 1.8k data
which also looks bad.  

Sorry but I trust Elecraft/Sherwood's published measurements of the 400/500
listed below.  Peter may have had both a bad 1.8k and 500.

http://mailman.qth.net/pipermail/elecraft/2008-June/091593.html
http://mailman.qth.net/pipermail/elecraft/2008-June/091606.html

73,  Bill  

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