I've not got around to swapping my 3101 for my 3207, but I had a chat with
Ming some time ago and proposed availing myself of his expertise in this area when I did finally get around to installing the radio.
One thing he did suggest was to mount the aerial (up-side-down?) behind the number plate because the ground-plane, earth rotation polarity burner would hyper the boost wave on account of the tarmac stratosphere bounce.
I didn't really understand what he meant.
Greg