[TowerTalk] Vertical top-loading questions

Jiri Sanda jirka@jimaz.cz
Wed, 13 Jun 2001 23:23:20 +0200


Hello,

read very nice article from L.B.Cebik at his www.cebik.com

Name of the proper article is if I remember well "where is my hat or
similar.

73 !

Jiri

OK1RI

-----Original Message-----
From: owner-towertalk@contesting.com
[mailto:owner-towertalk@contesting.com]On Behalf Of BILL STRAW
Sent: Wednesday, June 13, 2001 8:59 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Vertical top-loading questions


A quick question:

I have an elevated 80M 4-square made of Rohn 25. There
is 15' of tower, then an insulator, then 50' of tower,
then a 20' whip made of aluminum tubing. Every winter
one or more of the whips break off (even using triple
wall tubing). This year 3 broke off. I have to do
something:

1) Extend each vertical with 1 or 2 more sections of
   tower. This costs $. I have the tower, but the
   Phillstran, and Grips X 4 towers adds up quick.
2) Take the whips off and top load each tower with a
   piece of wire strung to the top of another tower.
   Thus I would have 4 inverted-L's, but the top
   horizontal portion would be exactly horizontal.

Would #2 alter the gain or pattern much? I think it
would decrease the bandwith, but this antenna is used
mainly on CW.

Thanks for any opinions.
Bill, WB0O in North Dakota



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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