![]() They also use less power than open arrays, an important consideration for small boats with limited electrical power, as well as for sailboat operators who hate starting up the generator. They can be mounted where space is limited and horizontal beam widths between 3.5° and 7° give good resolution on most targets.įor sailors, a radome is safe around halyards and sails because there are no external moving parts to snag in the rigging. However, radar domes - radomes - with the moving parts inside an 18" (45.72 cm) or 24" (60.96 cm) dome, are usually a better choice for smaller boats. They’re also sometimes the choice of smart anglers on smaller boats who look for flocks of birds diving on baitfish-the antenna is usually mounted on a hardtop. Open arrays are best for large powerboats with radar arches or pilothouses. They have the narrowest beam width, between 3.5° and 1.1°, the sharpest focus for picking out small targets, and the longest ranges. Open arrays, with the visible rotating arm, require more space to mount than radomes. Most radar manufacturers offer open array and radome designs to suit customers from small boaters to those running large yachts internationally.
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