Reflectors and beacons
Reflectors
Reflectors are designed to give maximum returns from radar transmissions and may be fitted to buoys to aid navigation, or to sundry features such as dangerous outcrops of rocks, or any hazard that would impair the navigation of a vessel. Small boats may also have reflectors fitted to increase the range at which they can be detected.
Some small buoys have a reduced cross-sectional area when heeling over in high sea states.
Beacons
Radar beacons (also known as RACONS) produce a specific, coded signal response when the radar transmission interrogates the beacon. The reflected signal then renders echoes precisely on the radar display. This effect can be reduced when using a high Correlation level (RACONS are not normally affected by Interference Rejection).