Andy wrote:
Thanks all, for your input. I'll stick it up on the mast this weekend and
try it without any ground plain legs to start with. It will look a lot
tidier without legs on and I won't have the problem of having to put up a
longer stub mast to accommodate the ground plain legs.


Where are the radials on this antenna? The pix I've seen don't show any,
so it looks as if someone was tricking the antenna out. Probably to no
avail.

As likely as not, the thing was designed without radials, so it doesn't
need them. I'd put it up without them, measure the SWR, and if it checks
okay, you're good to go. The antenna will operate as well as it will
operate.

Bart Bailey wrote:

http://www.video-observer.com/imax/imax2000.htm

I use one for ten twelve fifteen and never installed the radial kit.
Seems to me that the radials are more of a decoupling shield than
anything to do with counterpoise, and in my case the feedline is
spiraled around the mast on the way down to choke any stray RF.

The page says the antenna is a .64 wavelength. But isn't the extra
length just compensating for the change in VF due to being inside the
fiberglass tube? Looks to be made well enough for sure.

- 73 de Mike N3LI -