[Elecraft] K2 AF noise level?

[w6jd at comcast.net]

I just built a SCAF-1 and while it turns my IC-706MKIIG into a new radio it doesn't offer any improvement on the K2 with the KDSP2. I've also used the KAF2 and I don't think it would be much of an improvement over that either.

Doug
W6JD

-------------- Original message -------------- 
From: "Darwin, Keith" <Keith.Darwin at goodrich.com> 

> Hey 'Crafters, 
> 
> I'm debating between the KAF2 or an outboard audio filter for my K2. 
> Possible choices are the SCAF-1 and an Autek QF1A. 
> 
> My goal is to greatly reduce the hiss that is there in the headphones 
> when the narrow CW filters are engaged. I'd also like to add some CW 
> selectivity. A notch would be great too. 
> 
> KAF2 has the benefit of being integrated into the rig but doesn't offer 
> lots of flexibility. The others are external but give you more control 
> over the filtering. 
> 
> How well does the KAF2 kill the hiss? I assume it does great for that. 
> Does it add any noise back in? 
> 
> - Keith KD1E - 
> - K2 5411 - 
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