[Elecraft] K3 DSP shape factor?

[N2TK]

 Dave,
I wonder if the problem had anything to do with the AGC SLP? Mine was at 10.
Very strong signals seemed to cause some high pitch distortion. I changed it
to 12. It seemed to help. I hear some have gone to 15. But I thought that
was flat topping the AGC too much.
N2TK, Tony  

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave Hachadorian
Sent: Tuesday, April 01, 2008 2:09 PM
To: Elecraft Reflector
Subject: [Elecraft] K3 DSP shape factor?

There have been a few postings over the last two days 
complaining of ssb splatter on receive with the K3 during 
the WPXSSB contest. I operated during that contest with my 
TS-850's and found generally that the bands were extremely 
crowded, and there were definitely some stations with broad 
signals. However, I am particularly concerned about the 
comments from the ham who said he preferred his TS-930 over 
the K3 on SSB.

The question I have is "What is the effective shape factor 
of the K3 DSP?" Is it much steeper than the 1.5 - 2.0 shape 
factors of the roofing filters, such that DSP attenuation 
predominates? Or, is it less than 2:1, and off-frequency, 
the roofing filter predominates? Maybe the DSP shape factor 
varies as a function of bandwidth?

I've done a Nabble search and searched the Elecraft Web 
site, but didn't find an answer. Maybe some smart person can 
fill me in.

Thanks!

Dave Hachadorian, K6LL
Yuma, AZ



















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