I respect your opinion, but the question did not say 'multiband' antenna.
I used belden 300-ohm twinlead for 2-meters because I had a long run to the
top of a tree on the other side of the yard. The specs showed it to be
low-loss at 2-meters. The cost was affordable - much less than low-loss
coax.
So I used a u-bent half-wave piece of coax on each end and a 1/4-wave of
75-ohm coax with it - and it performed very well in the real world and the
impedence match was good.
I even had the project published in the Antenna Compendium a few yrs back.

"Cecil Moore" wrote in message
...
Ian White, G3SEK wrote:
Parallel-line can be excellent for power distribution and phasing
*within* a stacked array. I've used it on the moonbounce array at
432MHz, in a wet climate, but those were short, straight lines that are
self-supporting with mostly air insulation - a completely different
thing.

Given a single dipole, multi-band antenna, parallel transmission line
is just about the only choice. The 50 ohm SWR on a one-wavelength
dipole is about 100:1. The 500 ohm SWR on a one-wavelength dipole is
about 10:1. Under those circumstances, it is no contest.
--
73, Cecil http://www.qsl.net/w5dxp



-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.690 / Virus Database: 451 - Release Date: 5/22/2004