[Elecraft] K3 - SPE Expert 1K-FA and ALC

[Rob]

I agree with Guy and Vic. It is not good to load up an amp and use AGC to 
tamp it down. Lord knows there are enough bad sounding stations already on 
the air, especially on sideband.

Rob K6RB

----- Original Message ----- 
From: "Vic K2VCO" <vic at rakefet.com>
To: <elecraft at mailman.qth.net>
Sent: Saturday, May 15, 2010 11:03 AM
Subject: Re: [Elecraft] K3 - SPE Expert 1K-FA and ALC


Sorry, with all due respect this is HORRIBLE advice.

I won't argue with those that say that the ALC should be connected for its 
protective
value. But it should not be depended on to control output level -- the 
exciter should be
adjusted to produce approximately the drive required for full output.

The SPE Expert may have an exclusive design, but it is not exclusive enough 
to include a
time machine so that it can know how loud the operator is planning to talk, 
and it doesn't
control the delay inherent in the exciter's ALC circuitry.

The result is guaranteed to be increased distortion.

On 5/15/2010 4:25 AM, Björn Mohr wrote:
> 2010/4/22, LA8AW<oddyen at gmail.com>:
>
>
> Here is the statement from the developer of the SPE Expert 1K-FA - 
> regarding
>> ALC, quoted from an early Expert Reflector:....
>>
>> I hope this will clarify the SPE Expert vs K3 - and ALC !!
>>
>> We really suggest to always leave the transceiver's output power manual 
>> control to
>> its maximum level because the EXPERT, thanks to its exclusive design, 
>> will provide to
>> control that level as long as the required optimal value will be reached.


-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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