[Elecraft] K3 RX AGC right after a transmission
K8AC
floyd at k8ac.net
Mon Dec 1 11:47:53 EST 2008
Lyle - I too noticed this during the contest and at times it was a real pain.
Switching to fast AGC circumvented it, but there are many reasons that I
prefer to run slow AGC. Also, many of us do NOT run full break-in for a
variety of good reasons. In that case, having the AGC state resume where it
was at the last receive point - perhaps 3-6 seconds ago - isn't very useful.
In many cases, the last AGC state was set by a strong station and the new
receive state starts with a very weak signal calling.
I don't ever recall running into this situation on my K2 or Pro III and
really would prefer some sort of option to prevent it from happening on the
K3. Perhaps we don't need a new option, but could key an operational change
from whether or not QSK was being used?
Lyle Johnson wrote:
>
> Hello Arie!
>
>> ... We SUSPECT that the AGC was still at the level from
>> BEFORE the transmission.
>
> Yes, AGC is suspended during transmission, then resumes during receive.
> The assumption is that the band hasn't changed that much in the
> milliseconds (CW QSK) to several seconds (SSB voice).
>
>> ...the work around was setting the AGC to fast.
>
> In general, fast AGC is most often used for CW< and slow AGC for voice
> or data operation.
>
> 73,
>
> Lyle KK7P
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at 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
>
>
--
View this message in context: http://n2.nabble.com/K3-RX-AGC-right-after-a-transmission-tp1596220p1599459.html
Sent from the Elecraft mailing list archive at Nabble.com.
More information about the Elecraft
mailing list