[Elecraft] Weird AGC Behavior

[goldtr8 at charter.net]

Simon has sold HRD so I would not hold your breath for a fix.

~73
Don
KD8NNU


On Mon, Sep 19, 2011 at 12:36 PM, Don Wilhelm wrote:

> David,
>
> Are you running Ham Radio Deluxe?  If so, that is what is turning the 
> AGC off.
> My understanding is that this is a problem with the fast polling rate 
> used by HRD.  Last I heard (more than a month ago), Simon was looking 
> at some sort of fix, but I have heard no further information.
>
> 73,
> Don W3FPR
>
> On 9/19/2011 12:22 PM, David Inger wrote:
>> Has anyone experienced anything like this?
>>
>>   I am using a K3 (FW version 4.39; DSP version 2.73) with a KPA500 
>> amp
>> connected to the K3 with the Elecraft AUX cable.
>>
>> I normally have the AGC set for AGC-S when operating SSB or digital 
>> modes.
>> If the K3 is in receive mode for several minutes,  the AGC turns 
>> itself off
>> without warning (accompanied by a hugh volume increase from the 
>> speaker).
>> While this doesn't happen every time, it has happened several times. 
>> It
>> seems to be most likely to happen if the Noise Blanker is turned on 
>> and the
>> KPA500 amp is on and ready for operation (as opposed to being in 
>> standby
>> mode).
>>
>> When I installed my KPA500, I upgraded the K3's firmware to the above
>> versions.  I have no idea what is causing the AGC to turn itself off, 
>> or if
>> it has anything to do with the firmware upgrade, the amp, or both, or
>> neither.
>>
>> I would appreciate any help that exorcises this demon.
>>
>>
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