[Elecraft] Re: K3 - 'Unwanted' TX Gain calibrations?

Jim Brown jim at audiosystemsgroup.com
Tue Sep 23 18:01:25 EDT 2008


On Tue, 23 Sep 2008 14:32:52 -0700, Lyle Johnson wrote:

>This way, the filter delay acts to improve VOX attack time.

Yes, but it also prevents the TXEQ filter from removing LF trash 
(breathe pops, mic handling noise) that false triggers the VOX. And 
I'm having that problem. For the same reason, we want the comp/lim 
to be after the TXEQ. 

Have you considered (and are you using) "feed forward" sensing for 
comp/lim? This is widely used in pro audio. A few ms can do a lot to 
catch fast peaks, and it's analogous to what you're doing with the 
delay associated with EQ. 

Jim





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