On 28 abr, 14:39, Cecil Moore wrote:
On Apr 27, 6:33*pm, Wimpie wrote:

With respect to the impedance concept, we as amateurs do not use
steady state signals, as they contain no information. We modulate them
and are still using the impedance concept, despite the definitiones
you showed.

Trouble is, the impedance in IEEE definition (1)(B) doesn't *cause*
reflections. If the actual source impedance matches IEEE definition (1)
(B), the presumption that source impedance will *cause* a reflection
is invalid.

Are you familiar with the concept of S-parameters where you determine
impedance by measuring of reflection coefficient?

Walter Maxwell argues that the actual source impedance of an RF
amplifier is in reality a V/I ratio, i.e. it agrees with IEEE
definition (1)(B).
--
73, Cecil, w5dxp.com
"Halitosis is better than no breath at all.", Don, KE6AJH/SK

Wim