"Larry W4CSC" wrote in message
...

Also, in reality, ON A BOAT...IN THE WAVES, the flat pattern generated by
a
super-high-gain antenna squishing the donut of a vertical dipole out flat,
all that power will end up being pointed at the sky on one side of the
wave....and at Davy Jones' Locker on the other side of the wave....making
this whole discussion MOOT!.....in reality.....(c;

Well, this calls for a gimbaled hi-gain VHF anntenna. Or mount one on top of
your gimbaled radar dome (it save you a counterweight). Man, how close an
easy solution sometimes is.....

Meindert