I'm using a Gap Titan and it works well on 10 through 40. It only works 
on a part of 80 and you have to choose which part of 80 you want to use 
and change a capacitor in the antenna. A sighted ham put it up for me. 
As I recall, in order for it to work correctly, you have to follow the 
manufacturer's instructions to the letter. I've worked all over the US 
and Canada and some Europeans and JA's as well. I have it mounted on a 
mast on the side of my house but I believe it can also be ground-mounted.
Steve wrote:
> This is for a friend of mine.
>
>
> Steve, K8SP
>
> I'm contemplating the erection of a Gap Titan 80/10 mtr antenna. Do you know 
> anyone using such a critter, and, if so, how well does it work and how 
> difficult is it to construct, A.S., wa7fxb
>
>