Assertion: radar's beam | /r/HasProperty | narrow
Facets:
value: in the cross-range direction[clarification
type: LOCATION
Source sentences:
text: Radar requires a narrow beam (a beamwidth of only a few degrees) in order to concentrate its energy on the target and to determine the target location with accuracy.
text: To produce a beam that is narrow in the cross-range direction[clarification needed], diffraction effects require that the antenna be wide in that dimension.