Radar Reflectors Rig & Mast Mount
A passive radar reflector shall be carried with:
Octahedral circular sector plates of minimum diameter 300mm (12 inches) or octahedral rectangular plates of minimum diagonal dimension 405mm (16 inches).
or
A non-Octahedral reflector with a documented Root Mean Square minimum Radar Cross Section (RCS) area of 2 m2 from 0-360 degrees in azimuth and +/- 20 degrees in heel.