Ken,
If you consider how much movement that there is in a whip in a mobile
situation, the 20 deg will not make much difference to it, I bent mine a
fraction more, and it made little difference to the VSWR or the performance.

John VK2KC

"Chevy454" wrote in message
...
I want to put my 2M 5/8-wave mag-mount on the trunk lid, which slopes
down at 20 degrees. I am concerned that most of my signal is going
into the ground or outer space.

Can I bend the long whip so it stands vertically? Should I do it?
does the downward slope of the ground plane leave a problem
unaddressed?

Ken KC2JDY