"Bill Kearney" wkearney-99@hot-mail-com wrote in message
...

True, and higher gain may also pull in a wider set of networks. You'd end
up listening to "too many" and get even worse performance. And the
radiation pattern from most of these antannae is shaped like a donut.
When
the boat is rocking that donut gets tilted up and down, in and out of the
coverage area. Higher gain antennae have a much narrower area of
coverage.
So any rocking with a typical 14db omni would render it almost useless.
Same deal goes for a directional antenna, if you swing on anchor there
goes
the coverage.
-Bill Kearney

Would there be any merit to fitting an antenna with a gimbal of sorts?

Shaun