[Antennas] Open Wire Feedline

KB4QQJ at aol.com KB4QQJ at aol.com
Sun Jan 27 10:32:39 EST 2013


Great Ken,
If you got the pens that's the better idea. Good luck and let me know how  
it works.
 
73 for now,
Randy_KB4QQJ
 
 
In a message dated 1/27/2013 8:31:03 A.M. Eastern Standard Time,  
ken at wa0sbu.com writes:

Randy;
Thanks, I already have the pens, So  I'll try them.  I didn't even think 
about the insulators from Tractor  Supply, even though I have a few on my 
fence.   The pens and #18  wire  should get me around 600 ohms.  I have to get 
it made, mount  my Zebco 303 on my slingshot and shoot it up into one of my 
cottonwood  trees.  I'll let you know how it works  out.

Ken


On 01/27/2013 12:50 AM, _KB4QQJ at aol.com_ (mailto:KB4QQJ at aol.com)  wrote:  
Ken,
I first used the pen enclosures and they work fine. However, I now use  a 
product I found at a local Tractor Supply store.  they are called  Fi-Shock 
insulators. I bought a box of 200 for about $15. They are  tough,very strong, 
rated to handle high voltage,  transparent to RF, and are resistant to 
ultraviolet exposure,  even the Texas sun. They are intended to use on electric 
fence runs where  the wire runs through a staple on the fence post. Here is 
a link to their  web site. _Fi-Shock Online Catalog_ 
(http://www.fishock.com/store/high-tensile-electric-fence/500-540) 
I left the Fi-Shocks at 4"  It comes out to about 480 ohms. I'm  sure you 
could find something cheaper in your local home improvement store.  Free is 
always better though, and a lot more fun scrounging...
For the wire it depends on what I have around the shop. Normally I use  #18 
insulated THHN. 
Also readily available at the local home improvement store. If you  are 
like most hams, (or me anyway) I'd rather scrounge. Find you a local  
electrician that contracts out to larger companies doing major commercial  work. They 
 carry 1000' rolls and when it gets down to less than 200  hundred feet 
they will give it to you off there truck.  Good luck and  keep me posted on how 
it turns out for you.
 
Randy_KB4QQJ
 
 






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