[Boatanchors] The 100-foot Doublet - was Antenna Question

[w5sum]

DX Engineering has a fine 300 Ohm Line that will EASILY handle a kilowatt. 
In fact, I regularly put 1200 watts through mine, and it has never failed. 
Its window line too, though much smaller than the 450 ohm stuff.

Ronnie - W5SUM
----- Original Message ----- 
From: "David C. Hallam" <dhallam at knology.net>
To: <boatanchors at mailman.qth.net>
Sent: Sunday, March 31, 2013 4:41 PM
Subject: Re: [Boatanchors] The 100-foot Doublet - was Antenna Question


There was (is still?) a KW version of 300 ohm TV twin lead available.
Back in the 60's and early 70's I used it on a number of wire beams. It
is smaller, about the same width as the regular stuff but thicker and I
believe had copper clad steel wire. If it is still around, it might be a
candidate too if you want something around 300 ohm.

David
KW4DH

On 3/31/2013 4:45 PM, Al Klase wrote:
> You can use 300-ohm TV twin lead up to a couple hundred watts. The 450-ohm 
> "window" line should tolerate most of a full gallon. Start with some extra 
> length. The excess can be hung up in a loose coil away from metal objects. 
> Be prepared to cut off a few feet if you have trouble matching all bands. 
> It might be reasonable to keep an extra piece of feedline handy for 
> extreme cases. I terminate my balanced line with dual-banana plugs. This 
> makes it easy to change connections or plug the line into a grounded jack 
> when not in use.

-- 
“One of the evils of democracy is, that you have to put up with the man you 
elect whether you want him or not.”  Will Rogers

______________________________________________________________
Boatanchors mailing list
Home: http://mailman.qth.net/mailman/listinfo/boatanchors
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Boatanchors at mailman.qth.net

List Administrator: Duane Fischer, W8DBF
** For Assistance: dfischer at usol.com **


This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html