[K3] AGC keeps changing (turning off) on its own?

[mike]

I ocassional get a loud blast of code in the headphones and look over at the K3 panel. It shows AGC- , that is the AGC is off!. I don't know what causes this. I do not mess with it, and always want AGC-F for CW and AGC-S for the ocassional SSB I do. I don't know what is causing it to change. Anyone get this?

 

..mike AI6II

[Don Wilhelm-4]

  Mike,

Are you running any K3 control software?  I recall a while back that HRD
(or maybe it was some other software) was causing the AGC to turn off at
times, I don't recall the details. so you should check the archives.

73,
Don W3FPR

On 7/8/2011 1:27 PM, ai6ii wrote:
> I ocassional get a loud blast of code in the headphones and look over at the
> K3 panel. It shows AGC- , that is the AGC is off!. I don't know what causes
> this. I do not mess with it, and always want AGC-F for CW and AGC-S for the
> ocassional SSB I do. I don't know what is causing it to change. Anyone get
> this?
>
> ..mike AI6II
>
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[telegrapher]

I am running HRD but i don't see the AGC changing.  However the control panel, when i'm in the Logbook mode, shows Filter 2 and Filter 4 on the display turn on and off and sometimes both show up as active although it doesn't actually happen in the radio.

Larry
W0OGH
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[Guy, K2AV]

This has been due to too-frequent polling by HRD.  You will find a lot
more information and discussion of this in the Elecraft reflector
archives.

73, Guy.

On Fri, Jul 8, 2011 at 2:23 PM,  <[hidden email]> wrote:

> I am running HRD but i don't see the AGC changing.  However the control panel, when i'm in the Logbook mode, shows Filter 2 and Filter 4 on the display turn on and off and sometimes both show up as active although it doesn't actually happen in the radio.
>
> Larry
> W0OGH
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html
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[mike]

Okay, that is good information. I will check out what has been written on HRD's too frequent polling. I really like Logbook V and now have it all set up to receive spots from my SDR-IQ/CW Skimmer sharing the same antenna. Everything works the way I want it, with now the possible exception that HRD is changing the K3 without my initiating the change.

Thanks,

..mike AI6II

[mike]

Okay, a lot of posts on the reflector that I did not pick up on my original searches. I have gone back to using LP-Bridge as suggested in a couple of threads to control HRD's polling. It makes sense as I had the problem when first using HRD directly, then I started using LP-Bridge for another reason but don't remember the AGC problem ever occurring. I recently started back interfacing the K3 directly with HRD and the problem returned. I am now back to running HRD from the virtual port provided by LP-Bridge and so far have not seen the AGC fail.

73,  ..mike AI6II