[TowerTalk] Matching network for wire antenna needed

[Doug Smith]

You can match both 160 and 80 with a single “modified” L-Network.  It would have three components rather than just two.  There would be no switching required moving from 160 to 80.  

But, you’d likely need TWO of these networks — one for the bottom end of the bands and one for the top end of the bands.  With remote switching to flip between them.

For an example of the modified L-Net that covers both 160 and 80 (without switching) see:

  http://www.w7kf.com/Articles/Rigs/SkyHook2.html

Of course, you could get a BIG edge wound variable inductor and a vacuum variable capacitor and a couple of motors and stuff and have at it!

73,
Doug, W7KF


On Sep 14, 2014, at 7:45 AM, Gary Marks <gmarks at neo.rr.com> wrote:

> I have an Inverted-L antenna for 80M & 160M and would like to make or buy a remote matching system that would work on both ends of both bands that would accept full power.
> I built a system many years ago from a Doug DeMaw, W1FB, article in the May 1985 issue of QST but it has never worked as well as I wanted for whatever reason.
> If anyone is interested, this article can be found at the ARRL QST archives http://www.arrl.org/arrl-periodicals-archive-search  by entering W1FB , 1985, May, QST.
> 
> Anyone have an idea of a matching system that would do all of the above ?