Cecil Moore wrote:

Richard Harrison wrote:

Regardless of reflections and re-reflections, all the energy sourced
into a transmission line ends up in the load if it isn`t lost in
transmission by radiation or conversion into heat. There`s no place else
for it to go.


Hi Richard, does that statement assume that all energy
dissipated as heat in the source was never sourced?

It seems to. Since he wrote "all the energy sourced
into a transmission line", it's doubtful that he was implying that any
heat energy was sourced into the transmission line. That would be silly
(RF transmission line is opaque in the infrared). He probably also
assumed that the energy dissipated by the front panel lights wasn't
sourced into the transmission line either. You forgot to ask about
that. ;-)

73, ac6xg

Jim Kelley wrote:

Cecil Moore wrote:
Hi Richard, does that statement assume that all energy
dissipated as heat in the source was never sourced?

It seems to. Since he wrote "all the energy sourced
into a transmission line", it's doubtful that he was implying that any
heat energy was sourced into the transmission line.

You missed the implication which was: Does any RF energy
exit the source only to re-enter the source again later
and wind up being dissipated as heat? For instance, we
know that a capacitive load is capable of returning
energy to the source during part of the cycle.
--
73, Cecil, http://www.qsl.net/w5dxp

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Cecil Moore wrote:

Jim Kelley wrote:


Cecil Moore wrote:

Hi Richard, does that statement assume that all energy
dissipated as heat in the source was never sourced?


It seems to. Since he wrote "all the energy sourced
into a transmission line", it's doubtful that he was implying that any
heat energy was sourced into the transmission line.


You missed the implication which was: Does any RF energy
exit the source only to re-enter the source again later
and wind up being dissipated as heat?

That implication did escape notice. Clearly Richard was talking about
something else.

But it's an interesting question. It would be nice to see some
objective data.

73, ac6xg