Originally Posted by Mike Lewis
I tried this and it worked! I now have a snug fit of the pipe to the antenna mast. Thanks for the idea.
As for having someone monitor me as I drive around, I might get a chance to do this before I leave Wednesday on a trip. Otherwise I'll stop often to check the mast during the first leg of the trip.
A good idea. If your mast has more than a few lbs mounted on top you might be surprised how much it moves, no matter how well it is secured at the base. I monitored my setup by tilting my rear view camera (mounted with VHB tape, which is a good option if you don't want mounting holes in your roof). While it held for several thousand miles, it still made me a bit uncomfortable with how much it swayed.
Now, my fiberglass mast is 2" diameter. The antenna is almost 3ft long and bulky, so it's very top heavy. I think a lighter antenna should eliminate the sway. You have to find the right balance for your equipment.