[Elecraft] K3 RX AGC right after a transmission

[Toby Deinhardt]

Hi Lyle,

> Yes, AGC is suspended during transmission, then resumes during receive. 
>  The assumption is that the band hasn't changed that much in the 
> milliseconds (CW QSK) to several seconds (SSB voice).

I've noticed this in SSB contests - I'm not sure if we exchanged mails 
because of this or not.

The effect sounded as if the K3 had become "hard of hearing" and took a 
second or so to recover. What I am no longer sure about, is whether I 
had set AGC to slow or fast.

While the assumption that during transmission reception levels have not 
changed, generally tends to be correct, at times it is not. I wonder if 
it would be too complex to return from transmission in an AGC "fast" 
mode and then switch to the mode which the user has chosen after say 
100mS or so. I could imagine that with a bit of tweaking, an automatic 
change of the AGC timing shouldn't be noticeable except for the fact 
that the "recovery" after transmission would be "masked".

Just an idea...

vy 73 de toby
-- 
DD5FZ (ex 4n6fz, dj7mgq, dg5mgq, dd5fz)
K2 #885, K2/100 #3248, K3/100 #67