It's a bit more complicated than that and the results are a lot better!
Doug Smith, who was the original DSP designer of the Orion series has brief
explanation on how it works:
http://www.tentecwiki.org/webarchive/digitalagc/
Scroll down to "A Unique AM ALC".
Ron N6IE
www.N6IE.com
----- Original Message -----
From: "Steve Berg" <wa9jml@tbc.net>
To: <tentec@contesting.com>
Sent: Monday, February 21, 2011 4:17 PM
Subject: Re: [TenTec] Orion II transmit equalization
> This used to be called controlled carrier modulation. It was a feature
> of cheaper rigs in the 1960's like the Knight T-60 and the Heath DX-60.
> It seems to work pretty well, and is a whole lot cheaper than plate
> modulation.
>
> Steve WA9JML
>
> On 2/21/2011 4:50 PM, Ron Castro wrote:
>> As much as it will allow you! Mine makes only about 16 Watts carrier if
>> there is no audio. However, there is an interesting feature in the
>> Orions
>> where the carrier power actually increases as modulation increases, so
>> the
>> practical result is that you can get 100 Watts PEP, and 25 Watts carrier,
>> but only for a few seconds, then it cuts down the power when stop
>> talking.
>> At any rate, the finals are rated for a lot more power than that, so it's
>> safe any any level.
>>
>> Ron N6IE
>> www.N6IE.com
>>
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