Re: More on PEP, AM, average power, etc.

On 1/30/06 2:33 PM, in article drm47i$6u0$1@xxxxxxxxxxxxxxxxxxxx, "Steve
Nosko" <suteuve.nosukowicuz@xxxxxxxxxxxxxxx> wrote:

>
> "Straydog" <asd@xxxxxxxxx> wrote in message
> news:Pine.NEB.4.63.0601271707530.11605@xxxxxxxxxxxxxxxxxxx
>
> ,...
>
>>>> What is a further issue is why the FCC decided to drop steady DC input
>>>> (easily measured with a plate current meter) in favor of making PEP
> output
>>>> measurement the new criterion by which transmitter power is to be
>>>> measured. The only thing I can think of is that there were, in the far
>>>> past, some AM amateurs who were running some form of ultra modulation
> or
>>>> super modulation and putting KWs of audio on a 1 KW DC input to the
> final
>>>> signal and the FCC didn't like that. Maybe if any of you have some
>>>> background on this, you could mention it.
>
>
> While possibly (probably) true... DC was easy to measure (by hams) and RF
> power difficult to measure in the early days. As time progressed, RF power
> became easier to measure and, after all, was the thing which would cause
> trouble as far as interference was concerned.
>
> 73, Steve, K9DCi
>
>

Even us guys with a commercial ticket used DC measurements to determine
input power; it wasn't a ham thing. Watt meters were used on lower powered
equipment, but it wasn't a requirement. Your "after all" comment is silly.

Don

.

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