Saturday, November 16, 2013

Verticals ... radials ... what's the right thing to do?

Even though I have a Butternut vertical in the antenna arsenal, this .pdf file from SteppIR, is one of THE best articles about radials that I have ever read.  It's in "plain ol' English" and doesn't require you to have a Doctorate in RF Theory to understand it.  Just thought I would share!

http://www.steppir.com/wp-content/uploads/2013/07/Radial-Systems-for-Verticals-Rev2.1.pdf

I currently have about 50 radials under my Butternut.  Looks like I could stand to add some more next Summer - although I'm currently close to the point of "no extra benefit".  Looks like with about 25 more, I can get a bit closer to that 90% efficient point. And "next time" (if there ever is one), I will seriously consider NOT ground mounting my next vertical.

72 de Larry W2LJ
QRP - When you care to send the very least!

5 comments:

Anonymous said...

The best vertical I have ever used had one elevated radial per band. It was a full size fan vertical on 10,20,and 40.
The radials were up 10 ft.

72 de WD5DHK

SV1GRN said...

A must read for hams, thank you Larry for sharing with us.
73

N1IX said...

Thanks for sharing the URL. Great information!!

Alistair Smith said...

Thanks for the link to this, a very interesting read and as I am currently working on improving the vertical perfect timing too. I am most tempted to mount the vertical higher up now with the chance of improved performance.

drew moore said...

Excellent article. What happens when they come to dig up the bodies hihi