From the design side, MPTT is defined at an interface, and minimizes
"reflected power" at that interface, and that is it.

The other items about matching are also quite important, such as stability,
loading, impedance transfer (both directions), bandwidth, Qs, loaded Qs etc.
But that is Not MPTT. There is a tradeoff between these, if one can also
obtain mptt, great, but close is good too.

mptt is just one of several parameters needed to optimize a match. At times
there are too many unknowns and the matching is experimental (class C)
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"Robert Lay W9DMK" wrote in message
...
On Mon, 01 Mar 2004 22:23:56 GMT, Gene Fuller
wrote:

What a load of crap!

The only difficulty in the MPTT occurs when some folks create new
definitions and new constraints that are not shared by others in the
discussion. Allowing the problem to float at will means that the
solutions will float as well.

The longstanding MPTT argument in amateur radio circles is not really
about power transfer and conjugate matching. The argument is typically
about what happens to the source impedance under varying load conditions.

Steam engines? Gear boxes? Yeah, sure, they help a lot.

That's a fair question, Gene - what does happen to the source
impedance under varying load conditions?

While you're at it, could you please explain how you would separate
the issues of maximum power transfer and conjugate matching from the
question of what happens to the source impedance under varying load
conditions?

I have no problem in supplying copies of the article to anyone who
requests a particular format by e-mail - available choices are pdf,
html, or Word for Windows 97 or 2003. The complete file is
approximately 1 MB in any of the formats.

73,
Bob