gain position. I've done that and I'm not sure I understand what is
going on yet. Need to think about it a bit. I'll post the curves up on
> -----Original Message-----
> From:
[hidden email]
> [mailto:
[hidden email]] On Behalf Of Barry N1EU
> Sent: Thursday, December 09, 2010 8:11 AM
> To:
[hidden email]
> Subject: Re: [Elecraft] An AGC story
>
> Thanks Don. I just realized that I can do some quick
> experiments to get my
> answer using an XG2's s3/s9 capability and noting audio level
> increase with
> AGC Off and then with AGC On and reducing RF Gain until same
> audio increase
> is accomplished.
>
> An aside to KE7X and W4TV: I too wish we could try
> experimental firmware
> that significantly raised the max AGC THR value.
>
> And to K6LL: Yes, I too fear loss of weaker signals
>
> 73, Barry N1EU
>
> On Thu, Dec 9, 2010 at 3:00 PM, Don Wilhelm
> <
[hidden email]> wrote:
>
> > Barry,
> >
> > Without doing any measurements it may be difficult to say
> precisely, and I
> > would think there would be a bit of difference from one K3
> to another.
> >
> > However, there is a quick and easy way to accomplish that -
> note that the
> > S-meter increases as the RF gain is reduced. So if you
> want to increase the
> > AGC Threshold by (say) 3 S-units, disconnect the antenna,
> and reduce the RF
> > Gain until you move the no-signal S-meter up by 3 S-units.
> That should be
> > close to your goal.
> >
> > 73,
> > Don W3FPR
> >
> > On 12/9/2010 9:07 AM, Barry N1EU wrote:
> >
> >>
> >> Cady, Fred wrote:
> >>
> >>> I made some measurements and have posted the results for
> your perusal
> >>> and information at www.ke7x.com.
> >>>
> >> Very interested findings - Fred has a graph of AGC action
> with AGC THR=8
> >> labeled figure 3 on
http://www.ke7x.com/home/the-k3-agc-story :
> >>
> >> So I ask this group: is it possible to raise the AGC
> Threshold from s3 to
> >> s6
> >> or s9 by simply reducing the RF Gain control? Can anybody
> estimate what
> >> settings of the RF Gain control would accomplish that?
> >>
> >> Barry N1EU
> >>
> >>
> ______________________________________________________________
> Elecraft mailing list
> Home:
http://mailman.qth.net/mailman/listinfo/elecraft> Help:
http://mailman.qth.net/mmfaq.htm> Post: mailto:
[hidden email]
>
> This list hosted by:
http://www.qsl.net> Please help support this email list:
http://www.qsl.net/donate.html>