>There is a semantic misunderstanding here about the meaning of "insertion
>loss". Everyone on this reflector seems to think it refers to dissipation
>loss. It doesn't, as commonly used by connector vendors. Instead it refers
>to what is more precisely called "transducer loss" or S21 in terms of S
>parameters. In a PL259 at 30 MHz, the transducer loss is almost all in the
>form of "mismatch loss", which is a theoretical number and does not produce
>any physical heat. Thus 0.3 dB insertion loss basically means 0.3 dB mismatch
>loss, or something like 6% reflected power.
Could you please explain that to me?
This sounds like like a discussion on another forum recently where a fellow
asserted that an SWR more than 1:1 would insure that not all power is
transferred to a transmision line. As near as I could tell, it sounded
something like power factor (which, as a DC and digital logic guy, still
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