Darwin, Keith wrote:
Hmm, using the full bar graph to show S1 to S9? Not a bad idea. I may
do that once I get the 41 step attenuator.
All this AGC talk makes me think TenTec's hang AGC should have been the
ideal. In effect it would turn the RF Gain down when a big signal came
in and keep it down until the signal went away, then would turn it back
up rather quickly.
Keith I think the problem with hang AGC is in contests. The winning
setup there is one where you attenuate the strong station and still hear
the weak guy nearby. This you can do with no AGC and a deft hand on the
RF gain. If your filter is the right type then you can hear the weak ones.
But for some reason it just never caught on. Maybe
because it was implemented in rigs with audio derived AGC?
Last night I tried listening with Fast AGC on my 830s but didn't like
the way the QRN came up between each CW element. But, if I left it on
fast then backed the RF gain down, the whole rig sounded better.
To make it sound perfect try no AGC and turn up the audio to Max and
ride the RF gain.
I just
may begin using fast AGC and reduced RF gain for all my operating.
- Keith KD1E -
- K2 5411 -
72 73 Karl K5DI
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rick Dettinger
Sent: Tuesday, October 17, 2006 12:00 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] When S-Meters are Useful (WAS: When do you use
fastAGC?)
Last year, I posted my intent to recalibrate my K2 S meter to give one
bar per S unit. I used my XG-1 50 microvolt output to set the S meter
reading to light 9 bars, with the preamp off. Of course, I can't use
the calibration scale for signal strength, but I can use the power out
scale, up to S9, to ret a reading. I like this method of using the S
meter. I don't mind losing the db over 9 readings. Some meters use up
to half of the scale on this with S9 being near the middle. I think
that is a waste. Not sure what this does to linearity, but it seems to
cover the range nicely.
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
