[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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