I have a Yaesu FTM-350 I'm planning to install in my Sorento.  After looking through catalogs I thought I'd found an acceptable mount / antenna combination in the Diamond K400SNMO and NR72BNMO.  When I got down to trying to attach the mount to the hatch however, it quickly became clear to me that it was not going to work.  With so many Sorentos on the road, someone must have solved this problem already.

My restrictions are as follows:  No drilled holes, and no antennas so tall that the XYL has to lower it to go through a drive-thru.  A luggage rack mount would be acceptable, but I've yet to find one that provides grounding.  Any experience that can be shared would be greatly appreciated.

Regards,
AB3KD
Jay

I agree.  I ordered a Ronard 2009 tripod from Solid Signal, and it came in today.  It comes with tar pads for the feet, and it is designed so that all the feet line up with rafters, provided those rafters are on standard 16" centers.  I'll use a stud finder to make sure I have the feet lined up with the rafters.

This particular chimney no longer vents anything, the furnace was replaced with a high efficiency model many years ago.  The point about exhaust gases remains valid though, for others who may be thinking about using a chimney mount, and reading this thread.

I think I have conformation here, that this chimney is just too small  As much as I hate putting lag bolts through a shingled roof, I'm going to go ahead and use a tripod.

73's,
Silas
AB3KD

Many thanks!  If I had thought about it a few more minutes, I might have realized that I could just walk up in to the attic and measure the thing.  Unfortunately, it far smaller than your estimate, only 17.25 x 13 inches.

I ordered a Diamond x3200a tri-band antenna today, and now I'm having second thoughts about how I plan to mount it.  I had planned to order a set or Ronard heavy duty chimney mounts, but after taking a good look at my chimney, I'm starting to wonder if it's a bit too "delicate".  It's not a question of bad mortar, it's a question of cross-section...  I'll include a link to a photo, all opinions are of course welcome.

Silas
AB3KD

http://i187.photobucket.com/albums/x161/Katanova/Amateur%20Radio/ChimneyPic1.jpg