K3 - Latest Beta update

[g4amt]

Sorry I have `missed the boat` on this thread.
I use my K3 most of the time with AGC Off as I find this offers best
weak signal performance. The AF protection, if I understand its function
  correctly, does not seem to be operating on my receiver with AGC off
despite the software update ... ?

Terry G4AMT

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[wayne burdick]

Terry,

With AGC OFF, your first line of defense is to set CONFIG:AF LIM to  
something in the 18-24 range so that the limiter will jump in to  
protect your ears when a strong signal appears.

The "AF output protection" feature kicks in at a *much* higher level.  
To trigger its muting action, you'd have to inject a very strong  
signal (say S9+50) along with max RF GAIN.

We've had a few reports that this AF muting comes in a little too soon  
in the AGC OFF case, and we'll be updating the firmware soon to move  
this threshold upward.

73,
Wayne
N6KR

On Dec 10, 2009, at 6:40 AM, Terry wrote:

> Sorry I have `missed the boat` on this thread.
> I use my K3 most of the time with AGC Off as I find this offers best
> weak signal performance. The AF protection, if I understand its  
> function
>  correctly, does not seem to be operating on my receiver with AGC off
> despite the software update ... ?
>
> Terry G4AMT
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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[Philippe Trottet]

Hi Terry,
It works with mine.
When AGC OFF if you have a huge sig, i.e 59+ it block and you can't hear it any more, only see the bargraph. You need to use the RF knob and adjust in order to hear it agn.
Bst 73's
Philippe A65BI
K3#3616

>>> Terry <[hidden email]> 10-12-2009 18:40 >>>
Sorry I have `missed the boat` on this thread.
I use my K3 most of the time with AGC Off as I find this offers best
weak signal performance. The AF protection, if I understand its function
  correctly, does not seem to be operating on my receiver with AGC off
despite the software update ... ?

Terry G4AMT

______________________________________________________________
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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