Interesting question, Kevin. I hope somebody has a good answer. One thing is
for sure, though. Inside the conduit, no matter how or what you do to it to
avoid it, it will be lying in water (condensation) most of the time,
year-round. Can't imagine that will help the constant impedance feature of
ladderline.
73, Jerry W5KP
----- Original Message -----
From: Kevin Hemsley <kev@ida.net>
To: <towertalk@contesting.com>
Sent: Friday, July 20, 2001 1:44 PM
Subject: [TowerTalk] Horizontal loop and ladderline project
>
> After much looking, I have finally found a source for utility poles. In
> addition to a new 60 foot tower, I am putting up five 40 foot utility
poles;
> four of which will be supports for a 160M horizontal loop, and the fifth
> pole will provide support for future wire antenna experiments. I plan to
> plant the utility poles about 5 feet deep making the poles 35 feet high.
My
> plan is to plant the four corners of the horizontal loop about 150 feet
from
> the shack. Part of the sales pitch to my XYL is to bury the feed line out
> to the loop.
>
> Are there any issues with running 450 ohm ladderline in PVC pipe
> underground? True open wire line would probably be best (like W7FGs), but
> I'm not sure how to "discretely" bring it back to the shack.
>
> I am also looking for ideas for corner wire supports for the horizontal
> loop.
>
> ------------------------------------------------------
> Kevin Hemsley
> kev@ida.net
> KB7TYA
>
>
> List Sponsor: Are you thinking about installing a tower this summer? Call
us
> for information on our fabulous Trylon Titan self-supporting towers - up
to
> 96-feet for less than $2000! at 888-833-3104 <A
HREF="http://www.ChampionRadio.com">
> www.ChampionRadio.com</A>
>
> -----
> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> Submissions: towertalk@contesting.com
> Administrative requests: towertalk-REQUEST@contesting.com
> Problems: owner-towertalk@contesting.com
>
>
List Sponsor: Are you thinking about installing a tower this summer? Call us
for information on our fabulous Trylon Titan self-supporting towers - up to
96-feet for less than $2000! at 888-833-3104 <A
HREF="http://www.ChampionRadio.com">
www.ChampionRadio.com</A>
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|