K3 vs. HPSDR Mercury receiver

[James Duffey]

Bill - You wrote:

"...we will not see pure SDR rigs (without crystal filter front ends)  
be competitive in contest environments."

KM0T is 100% software defined radio with Flex 1000s:

http://www.km0t.com/pages/sdr.htm


and routinely finishes in the top 10 in his category:


<http://www.arrl.org/contests/results/2008/junvhf.pdf >


and often wins his category:


< http://www.arrl.org/contests/results/2007/uhf.pdf >


He credits much of his success to the SDR.

I realize that this is not the specific environment you are talking  
about.

The blocking dynamic range of the Flex 5000 is not superb, but it is  
certainly good. It compares well to the K2 as an example. - Dr.  
Megacycle KK6MC/5
--
KK6MC
James Duffey
Cedar Crest NM





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[Bill W4ZV]

James R. Duffey wrote:

>I realize that this is not the specific environment you are talking  
about.

Correct.  VHF Contests and HF Contests are two entirely different animals.  I honestly don't know of *any* serious (i.e. Top Ten class) HF contesters that use SDRs.  However I expect quite a few will be using K3s with LP-PAN, either with Skimmer in Assisted or waterfall-only in Unassisted categories.  

73,  Bill