Get this from a library! Operations and training, Forward Area Alerting Radar, FAAR, and Target Alert Data Display Set, TADDS. [United States. Department of the Army.]
It is a pulse doppler radar that operates in the D band and has a range of about 20 km. Data from the radar was generally not used at the radar site itself, but broadcast over FM radio to the "Target Alerting Data Display Set" (TADDS), a small battery-powered receiver and display unit. [2] Field units, including the Chaparral, Vulcan and FIM-43 Redeye units, used the TADDS as an early-warning display, aiming their optically-guided weapons in the general direction it provided.
Get this from a library! Operator's and organizational maintenance manual : target alert data display set AN/GSQ-137 (XO-2) : (Forward Area Alerting Radar System).. [United States. Department of the Army.;]