"flip top nut case "


** Characteristic impedance IS ALWAYS independent of cable length.

Cos it IS a " characteristic " of the cable and depends only on how
it is made and the frequency.

The "characteristic impedance" is the impedance above the transition
region.


** Figure 7 SHOWS it is a valid parameter at all frequencies.


" This article from Belden ( famous US cable maker) on cable Zo ( at high
and
low frequencies) is free of the gross errors seen in the ones " flip top
head" selected:

http://www.belden.com/pdfs/Techpprs/ciocahalf.htm "


You're trying to make a faux case from the axis label on ONE graph
that even the title says is "Impedance vs. Frequency" and every other
graph that one is a composite of are labeled "Impedance vs.
Frequency.."


** The graph in Figure 7 is labelled " Characteristic Impedance (Ohms) "
and "Frequency (Hertz )".

The graphs in figures 4, 5 & 6 have " Zo " followed by formulae linked to
the curves and lines.

Zo = characteristic impedance.

So all these graphs are of CHARACTERISTIC IMPEDANCE.

You pathetic, blind as bat damn fool !!!!



If the cable is 'short' relative to the wavelength (frequency) then
there is not 'enough' of it for the 'wave' to 'stand in', so to speak,
and the 'reflected' wave is essentially the same phase as the source,
so there can be no 'wave cancellation' or significant 'loading' of the
signal .


** Signal source loading is NOT due only to standing waves.

Transmission line behaviour does NOT depend on them.

THAT is your false assumption.



It matters in OTHER WAYS !!!!!!!!!!!

Care to explain what these "other ways" are?


** Cable capacitance and cable linear inductance.

Both can be made to vanish by Zo loading a cable.

This is what the topic is all about in relation to audio lines - cos there
is no issue with standing waves.



That is a QUOTE from the link you snipped out because your own
authoritative source says you're wrong.


** That is not any source I quoted.

Cos that sales dude fool makes the same dumb errors that many others have.



Just proves you can't read. The quoted words were cut and pasted from
the article beginning with the first sentence of the second paragraph
under figure 11 about midway in the paper: "You can see that, at low
frequencies, there is no "characteristic" impedance. It is always
changing. "


** That is just plain idiotic.

Just because a parameter varies with frequency don't mean it ceases to exist
!!!!


The "desperate CHARLATAN !!!!" is you removing the reference from
your own authoritative source showing you're wrong.


** Not any source I linked at all.

Just some dumb *sales dude fool* with the same wrong ideas that idiot radio
hams sprout all the time.

And a fool never learns.




....... Phil