Mitchell wrote:

Looking for a design for a multi-element (10-20) yagi antenna that I may use
for sending/receiving wireless audio/video used for surveillance system.
Not having the best of luck finding same at this point.
Any help for one's already designed or a good formula to go by to build my
own.

Take a look at these pages on my web site:

http://www.k7mem.150m.com/Electronic....html#Page_Top

and

http://www.k7mem.150m.com/Electronic....html#Page_Top

This may give you the help you need. Watch out for the popups because it's a
free web site.

--
Martin E. Meserve - K7MEM
http_//www.k7mem.150m.com