"The higher the voltage excursion, the longer the linear portion of the
output/drive power curve. For this reason, amplifiers powered from 40V or 50V
DC exhibit considerably better linearity, and thus lower IMD, than 13.8V
units."
http://www.ab4oj.com/quadra/sshfamp.html
This sounds like a good "executive summary" of the issue to me.
The "inganeers" on the list are welcome to comment as to its validity.
73, Al
On Mon July 1 2013 5:59:24 pm Jim Lowman wrote:
> I'm not an RF engineer (or any kind of engineer, for that matter), so
> please excuse the dumb question.
>
> What's the problem with 12V, and what are the advantages of going to 24v
> or even 48v?
> Quieter devices available at these voltages?
>
> 73 de Jim - AD6CW
>
> On 7/1/2013 1:46 PM, Rick - DJ0IP / NJ0IP wrote:
> > BTW, if you look at how the FT-102 achieved the good dynamic range, they
> > did it by running their mixers with 24v instead of 12v.
> > Makes you wonder why they don't do that today, doesn't it!
> >
> > Thanks for reminding us that it wasn't always as bad as it is today.
> >
> > 73
> > Rick, DJ0IP
>
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