Cruise ships and tankers have satellite dishes on them and manage to keep
them pointed while underway. They are a LOT more critical than an HF beam.
One way to do this would be to locate the bow of the ship with a GPS
receiver and then locate the stern of the ship with another one. This is
enough data to know which direction the ship is heading. Then all you need
to do is massage this data and engergize a rotator to keep the beam pointed
in the correct direction. This really is "rocket science" since it was
necessary to use rockets to launch the GPS satellites!
There are probably several easier ways to do it . . . like using a
gyroscope, for example. Keeping it pointed is not the hard part. Keeping a
beam in one piece at sea would be the hard part.
Stan
w7ni@easystreet.com
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