[Elecraft] New AGC FW

[Gary Gregory]

*Hi All,

I have been testing the new settings available with the new FW.

 The original settings allowed setting the AGC from 2 thru 8. The new
settings allow you to increase the delay of AGC onset from 2 through 20.

The effect you *hear* is that QSB becomes more rapid (expected behaviour)
but the clarity of multiple signals becomes much clearer. As an example,
tuning into the pileup of stations calling 7O6T enables each of the
callsigns of the stations is much easier to pick out. I have not detected
any mushy audio effects using a setting from 14-18 but occasionally you get
a louder audio from some stations.

I noticed you do have to reduce your AF gain somewhat to compensate for the
increase in audio but you do this while you adjust the AGC. I have been
using PF2 to switch between normal use and AGC adjustment for convenience.

On 10M I had some QRN appear and activated the NB and found the NB
eliminated the noise completely but did not notice any audio artifacts in
audio from strong signals. I have settled on a setting of 12-14 for normal
use now and I am evaluating whether this should become my *normal* setting
for *daily* use.

I will leave it to Wayne to respond with the relationship of the new
settings to S units but it appears to me that this improvement should
resolve many of the issues experienced when working a pileup with even more
refinements expected in the future.

My observations are a work in progress and I am sure others will alert the
group as they have a chance to play with the new FW.

regards,

Gary
*
-- 
Gary
VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!