[Elecraft] K3: Firmware Upgrades & AGC

[Dave G4AON]

Kent, you do not specifically need to save any parameters although the 
update tool has that facility and it's always worth saving them as it 
may avoid you re-calibrating the K3 at some stage. It is important to 
tick the "always load DSP data tables" otherwise the DSP might get 
itself in a mess. I've had to reload my firmware recently when the AGC 
didn't seem to be working correctly, that might have been me playing 
around with beta firmware and not paying attention, anyway a re-load 
fixed the problem.

The CONFIG:AGC SLP does indeed alter the AGC slope, if you momentarily 
press the <DISP> button, the display provides help. 10 is the default 
setting, HIGHER = FLATTER according to the help button.

One or other of the above may fix your problem, also check that AGC PLS 
(AGC pulse) is "nor" otherwise pops and clicks from light switches and 
similar pulses will shoot holes in your received signals.

73 Dave, G4AON
K3/100 #80
-----------------

Two questions for the group because I cannot find the answers in the 
manual (I am new to the K3):

1. When you upgrade to any newer firmware version, does it override any 
of your calibrations or memory presets?

2. I am a net control station on 40 meters and have strong local 
stations that boom in. There does not seem to be any AGC action to level 
the audio volume like my TR7's have. Have I missed a setting somewhere? 
Will the CONFIG:SLP setting help level this out and if so, any 
suggestions on what value to set this parameter to?

Thanks.

Kent, w7vz