[Elecraft] Weird K-3 Power Behavior

[Bob McGraw]

Fred et al:

Based on Don's information, 4 bars on solid, 5th bar flickering, 6th bar 
is beginning of ALC.    Also I seem to recall an exchange of information 
with a member of the  Elecraft staff that confirmed the beginning of ALC 
at the 6th bar.

I think this is getting into a hair splitting issue.

73

Bob, K4TAX


On 4/6/2024 2:03 PM, Fred Jensen wrote:
> Hmmm ... I thought that the ALC started AT the 5th bar and the first 4 
> bars were sort of a VU-meter.  Hence Don's occasional advice, "4 full 
> bars and the 5th occasionally flickering."  I've been known to get 
> things wrong in the past however.
>
> 73,
>
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> Bob McGraw wrote on 4/6/2024 8:50 AM:
>> Just to be clear on the point.  The correct audio level should 
>> produce 4 bars indicated on the ALC Scale.  Actual ALC action does 
>> not start until after the 5th bar.
>>
>> Yes, after any power adjustment, the audio system does start at lower 
>> gain, quickly ramping to the desired level.  This is done to prevent 
>> any potential power overshoot.  After the initial transmission at the 
>> new power setting, the remainder of transmissions are at the proper 
>> power level setting.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>> On 4/5/2024 5:50 PM, elecraft-request at mailman.qth.net wrote:
>>> Message: 14
>>> Date: Thu, 4 Apr 2024 21:03:20 -0400
>>> From: Pete Smith N4ZR<pete.n4zr at gmail.com>
>>> To:elecraft at mailman.qth.net
>>> Subject: Re: [Elecraft] Weird K-3 Power Behavior
>>> Message-ID:<59c02b5d-1800-4a78-9d73-60461d231efb at gmail.com>
>>> Content-Type: text/plain; charset=UTF-8; format=flowed
>>>
>>> I just set the audio to be sure I'm? hitting 4 bars of ALC,and the 
>>> cycle
>>> of adjust K-3 power to full expected drive to the KPA-1500 is now more
>>> like CW, but the question remains -? after I adjust the power a tiny
>>> fraction in either direction, why does the K-3's output power drop way
>>> back and relatively slowly recover?
>>>
>>> 73, Pete N4ZR
>
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