On Tue, 02 Sep 2003 15:12:19 -0400, Simple Simon wrote:



That's easy - here's a more complete answer than the other one I just gave
you.

Beam width is important in bearing resolution. All targets are widened by
the effective horizontal beam width. If the beam width is 4 degrees, two
targets that are one mile off will appear as one if they are closer
together than 370 feet. At two miles the targets must be separated by 740
feet, at 24 miles a six degree beam width would merge objects that were
almost 1.68 miles apart. This can make interpretation of the display
difficult. Suppose you are trying to find a harbor mouth that is 370 feet
wide. Radar won't pick it up until you get closer than a mile.

Get it?

S.Simon - a Captain who's a navigational phenom.

LOL, cut & paste without attribution. Tsk, tsk. The source of the above:

http://lists.samurai.com/pipermail/t...il/010427.html