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n. A radar dome.


n. a housing for a radar antenna; transparent to radio waves [syn: radar dome]


A radome (which is a portmanteau of radar and dome) is a structural, weatherproof enclosure that protects a microwave (e.g. radar) antenna. The radome is constructed of material that minimally attenuates the electromagnetic signal transmitted or received by the antenna. In other words, the radome is transparent to radar or radio waves. Radomes protect the antenna surfaces from weather and conceal antenna electronic equipment from public view. They also protect nearby personnel from being accidentally struck by quickly rotating antennas.

Radomes can be constructed in several shapes (spherical, geodesic, planar, etc.) depending upon the particular application using various construction materials (fibreglass, PTFE-coated fabric, etc.).

When found on fixed-wing aircraft with forward-looking radar (as are commonly used for object or weather detection), the nose cones often additionally serve as radomes.

On rotary-wing and fixed-wing aircraft using microwave satellite for beyond-line-of-sight communication, radomes often appear as blisters on the fuselage. In addition to protection, radomes also streamline the antenna system, thus reducing drag.

Usage examples of "radome".

AWACS and close brother to the COD, a twin-prop aircraft whose radome makes it look like an airplane being terrorized by a UFO.

It tore at the plane, broke off antennas, smashed the radome, and cracked a passenger window in the rear.

Pierce studied the white bulb of the radome, which gave the control tower an oddly Russian look.

The shock wave shattered the radome, blew in the control-tower windows, and knocked the helicopter off balance.

The forward radome was wrenched away with a horrible grinding sound that roared through the entire ship.

The surging water swept it back into the mast, then tumbled it against the second radome before it bounced off the stack and was carried away into the darkness.

These are generally TV broadcast antennas encased in a long cylindrical radome, and topped off with an aircraft beacon.

However, when one of the engines failed, or shortly after takeoff with all the flaps and landing gear hanging out, the radome was actually a five-ton millstone.

The conical white radome then disappeared, replaced by a heavy-action turret borrowed from the Abrams tank and a turret targeting system borrowed from the Hummer-25.

To the untrained eye, those dark masts were a confusion of bristling antennae combined with a gray, central spherical radome and two six foot microwave dishes on an ominous, boxlike, blank-walled forward superstructure.

It had a nose radome and electronic blisters under its fuselage but no missiles or bombs.

What was visible of the radome was like the top edge of a great silvery onion pushing up over the horizon.

No one knew what the Americans did there, but the massive arrays of antennas, satellite dishes, and radomes indicated it was a communications monitoring site.

Often the antennas have radomes, plastic weatherproof covers of various shapes.

Elint towers, odd-shaped antennas secured in cement, warning signs, and radomes that looked like giant Ping-Pong balls were erected.