K3 Amtor receiver recovery times - update

[Dave, G4AON]

Further tests show data modes are faster with a recovery in 22 mS but
followed by a complete shut off around 40 mS before recovering fully
beyond 50 mS. The behaviour on SSB was much slower. Is this something to
do with AGC overshoot?

Dave, G4AON

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
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

[Vic K2VCO]

Dave G4AON wrote:
> Further tests show data modes are faster with a recovery in 22 mS but
> followed by a complete shut off around 40 mS before recovering fully
> beyond 50 mS. The behaviour on SSB was much slower. Is this something to
> do with AGC overshoot?

Was the NR on? That can take a long time to settle down.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
_______________________________________________
Elecraft mailing list
Post to: [hidden email]
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

[KK7P]

I can send you some shots from my oscilloscope.  With either the 2.7 kHz
or 2.8 kHz SSB filter (I tested both), in SSB mode, from release of PTT
I measure ~22 ms to audio. There is a possible spike or other amplitude
perturbation at about 38 ms and lasts for about 2 ms, then things are
steady from 40 ms on out.

This is with a sign gen attached and pumping in a reasonable signal (S5
to S9, didn't write it down).

73,

Lyle KK7P

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
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