Radar Arch is described as a frame over a cockpit, bridge, or deck on which antennas, radars and radar reflectors, solar panels, lights, awnings, horns, and other items are mounted out of the way of the crew.
See also:
"radar" is in the NACE Code "33.20"
Manufacture of instruments and appliances for measuring, checking, testing, navigating and other purposes, except industrial process control equipment