[Elecraft] AGC threshold question

[Sverre Holm]

R1 can be replaced with a pot, but it's a painful thing to do. I've done
it with a very small pot (SMT style), but I don't really know why I took
the effort to do it, drilling holes etc. 

The recommended way is to turn AGC on/off on a quiet band and parallel
R1 (51 k) with resistors in the 100+ k range until there is no
noticeable difference in audio with AGC on or off. Alternatively a
voltage in the AGC circuit can be measured (nom. 3.9V).

If you would like to see how a pot can be fitted, then follow the K2
link on my homepage, but again it is not something I would recommend.

--
73, 
Sverre

------------------
Sverre Holm, LA3ZA
www.qsl.net/la3za


> -----Original Message-----
> After much searching, I see that in the K2 manual that's 
> online, R1 is now a pot where before it was a fixed resistor 
> and it's R1 that's used to adjust the threshold.  I would 
> have thought that would be something included in the upgrades 
> I put on, but it wasn't.  Anyway, does anyone have info on 
> the availability of the pot - wonder if it will fit on my old board?