If you have clear lateral room out to at least 200 feet (more is better), it
would be fairly simple to tram the entire antenna down for repair, then
ascent back to the top. The clear area would best be between two guys,
although I have heard of using one of the guy wires for the tram. I have a
large Yagi at 152 feet that needs repair. It will be trammed down 1/4 EHS
anchored about 200 feet from the tower base between two guys. This will be
done April 16 and there will be plenty of photos taken if you are
interested.
Keith NM5G
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Cqtestk4xs@aol.com
Sent: Saturday, April 02, 2005 6:38 PM
To: TOWERTALK@contesting.com
Subject: [TowerTalk] When a Yagi Loses an Element
Ah, the residual damages from the hurricanes continue to mount. The latest
casualty is is real problem. The 4 el 40 meter KLM lost it's reflector in a
severe windstorm form a squall line that came through last night. The two
clamps that held it in place broke, which could explain why it was beginning
to look a little off kilter the last few weeks.
Fixing it will be a problem. The reflector did no sustain any
non-repairable damage from its fall from 200 feet. However, getting the
element back in place is a challenge. The antenna is now very nose heavy
and once the U-bolts are loosened, the front end will make a nose dive
straight down into the guys wires. I had this problem with the 5 el 20
meter KLM at 200 ft last fall after it lost its reflector and damn near lost
the antenna. There is no way to reach the end of the boom to attach any
counterweight to it to balance it.
I am not even up to figuring out how to get the element back out on the end
of the boom yet. The antenna is mounted in a traditional fashion on a
flat-top Rohn 55 with no other antennas below it.
Ideas, other than getting a crane or other budget busting ideas?
Bill K4XS
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|