Special Features:

Lens in pos 2 engraved hook by track number; lens in pos 4 engraved mode c iff; lens in pos 5 engraved intercept path; lens in pos 6 engraved fixed mark; lens in pos 7 engraved strike aircraft; lens in pos 8 engraved assign heading; lens in pos 9 engraved track quality; lens in pos 11 engraved datum

Properties:

A digital/numeric/character display illunimated by incandescent lamps projecting changeable messages through a series of light collecting, condensing, and projection lens onto a viewing screen. May include message film chip(s), a message storage medium, and color filter(s). Excludes readout, incandescent type.