[TowerTalk] RE: [Antennas] loax 'sweet lenght'

[Tom Rauch]

>> Wrong, if there is a mismatch at the antenna you can get
reactance along
>> the line that varies in sign and magnitude.

> Wrong!  If there is no reactance at the antenna, there
will indeed be no
> reactance at the transmitter end regardless of line
length.
>
> Jim W9TM

Actually there is a reactance change along length when a
line is mismatched. If there was no reactance change, there
would be no impedance transformation.

I can think of special situations that have exceptions, but
in the general case where a line of some certain
characteristic impedance is misterminated with a pure
resistance reactance changes along the length, peaking at
odd-1/8th wave intervals and crossing zero at any multiple
of 1/4 wl.

73 Tom