Years ago in Europe I installed a phased quarter wave vertical array
for 20 meters on an appartment house complex metal roof pointed to
the states. It was very close to 50 ohms at the feed point. The
antenna worked great. The metal was actually under about an inch of
roofing compound, but was well grounded.

Surely, it is worth a try with the Butternut.

Win, w0lz



On Fri, 23 Sep 2005 11:38:03 -0700, "Rod Maupin"
wrote:

I posted this on the wrong newsgroup a few days ago and no one has answered,
so I'll try here.

I have a Butternut Vertical (as a secondary antenna) and a regular radial
system set up with it. I also have a metal roof on my house (here in the
country in Western Washington). I have been wondering if I can use the
metal roof as the radial system/ground plane for this antenna. Haven't
tried it yet. Would this work or would it detune the antenna?

What do you guys think?

Rod KI7CQ