[Elecraft] K2 v K3

[Bill W4ZV]

Gary Krause N7HTS wrote:
> 
> It's funny you should post at this time.  I don't have a K3 but, I was
> looking 
> at the test results on the Elecraft web site just yesterday.  I was
> wondering 
> how much difference there really is since the numbers are pretty close.
> 

Gary the numbers might be close at 5 kHz but the K2 (I have #4119) badly
falls apart at less than 5 kHz spacings.  I remember the first time I tried
using mine versus my Orion on 160m and it was a HUGE disappointment.  I was
listening to an extremely weak YA8G on 1814.0 and could not believe my ears
when I began to hear W1AW code practice on 1817.5 leaking through from 3.5
kHz away.  Check out the closer spaced test results by independent testers
like Sherwood and ARRL.  

Sherwood's IMD results at 2 kHz:

K2 S/N 1140 - 70 dB
K2 S/N 3170 - 80 dB
K3 (S/N in the 100s) - 95 to 101 dB (depending on XFIL)

http://www.sherweng.com/table.html

The K2 is a great little rig but it's frankly out of its league when you
start prowling 160 for weak signals in the presence of very strong local
signals. 

73,  Bill  W4ZV




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