The K3 power control is a closed loop system, and the loop gain will
vary a bit with variations in the K3 RF chain gain.
While it would be ideal if the control loop could be critically damped
for all K3s, I don't think that is practical because of component
tolerances giving rise to variations in the RF TX gain.
IMHO it is better to make the loop gain be a bit overdamped than to
allow it to be underdamped which would permit power spikes which drive
some modern amplifiers 'wild'.
Yes, too much overdamping is not good - unfortunately the response time
varies with the mode. Hopefully a compromise can be found that will
satisfy all K3s.
73,
Don W3FPR
On 2/8/2014 7:49 PM, Joe Subich, W4TV wrote:
> Meanwhile it lags a little in this mode, which is hopefully just a
> minor inconvenience.
It's more than a little lag <G> - particularly on those occasions the
lower level is nearly 3 dB low to start. I'm looking forward to the
next one. Perhaps the update rate should be adaptive - fast for the
first couple seconds of a transmission and then slowing down after the
power has had a chance to stabilize ...
73,
... Joe, W4TV
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
