[TowerTalk] Fwd: Fwd: How to support a large loop?

[hanslg at aol.com]

 Thanks! I an idea. I can support them with the tube. The tube will break before the wire, thereby saving me from splicing the wires.

You shall know that the ice can build up to inches and it doesn't matter what you do, nothing slides with that cover. Maybe if I cover several feet with the tube may I have a chance.

Hans - N2JFS



Why don't you just cover them with rubber from an old inner tube? 
wd8aam 


-----Original Message-----
From: van wd8aam <vlincoln at frontiernet.net>
To: hanslg at aol.com
Sent: Tue, Sep 21, 2010 4:12 pm
Subject: Re: [TowerTalk] Fwd:  How to support a large loop?


Why don't you just cover them with rubber from an old inner tube? 
wd8aam 
 
At 18:21 9/21/2010, you wrote: 
>Hi Jon, I have a 250' windom made of #14 and I >had a 250' Windom made of #12. They were both >supported in the middle as well as the ends. 1" >of ice made them both to come down. I had >similar support with pulleys and counter weights >but the pulleys froze up and the wire were >teared off. Just get use to put them back up >every time they get down. Now I am waiting for >the local zoning board to get their act together >and issue me the tower permit (I applied on >April 19th). That will bring some of the thing s >"to order". 73 de Hans - N2JFS I know that soon, >there will be enough snow to perhaps seize up >the pulleys even though I coat them liberally >with grease.  Also does anyone have any >experience with radial ice on #14 insulated long >spans? -----Original Message----- From: W4ZW ><w4zw at comcast.net> To: 'Tower and HF antenna >construction topics.' <towertalk at contesting.com> >Sent: Tue, Sep 21, 2010 1:01 pm Subject: >[TowerTalk] How to support a large loop? I’m >experimenting with wire antennas here at my >Breckenridge, Colorado, QTH at 10,000’.  I >have the Arapahoe National Forest as my backyard >with Lodgepole pines that range up to >80-100’.  I have had up in the past month a >half-square for 20M at 60’ that worked great, >a Windom at 70’, also worked quite well, and >full wave 80M Delta loop at 70’ that really >worked well. I’ve used my bow &arrow, spinning >reel, and parachute cord to get the supports up, >and have until this past week just tied the >antennas up with enough sag to compensate for >the wind.  When I put up the Delta Loop I used >small sailing pulleys mainly for ease in >adjusting the loop after the two support points >were fixed.  I also thought that letting the #14 >insulated antenna wire “roll” through the >pulleys would help with the wind. I just >received my 1000’ spool of flex-weave and a >spool of 450 ohm ladder line for my next >project.  It will be a loop approximately >500-550’ with the lower side about 120’ >long  at 70’, and  two spans running up at >about a 60 degree angle to three support points >up a ridge to Lodgepole pines that will be about >100’ higher than the low end. There will be >five support points in addition to the feedline >point which will be fixed. My question is should >I firmly attach the flex-weave to each insulator >point and leave enough slack for the wind, or >should I use the sailing pulleys and let the >wire run through them as the wind blows? I know >that soon, there will be enough snow to perhaps >seize up the pulleys even though I coat them >liberally with grease.  Also does anyone have >any experience with radial ice on #14 insulated >long spans? I usually have 1 meter of snow back >here, and maintenance then will be an ordeal. >73's from 10,000' Jon Hamlet, W4ZW/Ø >Breckenridge, Colorado 80424 >_______________________________________________ >_______________________________________________ >TowerTalk mailing list TowerTalk at contesting.com >http://lists.contesting.com/mailman/listinfo/towertalk >_______________________________________________ >_______________________________________________ >TowerTalk mailing list TowerTalk at contesting.com >http://lists.contesting.com/mailman/listinfo/towertalk