Drifter wrote:

Steve, if i were to mount something like that,
and bring it to the radio by coax; how would
this be grounded for static and lighting?
i would rather ground outside and not at the
radio...thanks...

You can do it several different ways. Here, I use the type of
transformer that utilises a ground at the feed point. Hence, the antenna
itself is always at DC ground.

It's simply a matter of how one connects the windings. It's certainly
possible to short the one end of the winding to the coax connector, and
then just get away with a ground at the receiver.

I believe this is the method that the RF Systems MLB balun uses. Myself,
I prefer to have a ground at the feed point.

From the feed point here it's about 9' down to an 8' or so ground rod.

I also have a separate ground for the receiver(s), and I would still
recommend it's use.

I used to offer them for sale, and could build one any way the customer
wanted. It's time consuming to make them though so I jut drifted away
from it. Last time I wound one up was for a fellow in Ireland a couple
years ago, and he has good success with it. I think I sold about 275 of
them, but I just could not keep up.

If you have other questions I'll try and help you out. I'm much better
at explaining in person and if I have some exhibits to use!

Steve
Holland, MI
Drake R7, R8 and R8B

http://www.iserv.net/~n8kdv/dxpage.htm