. . "United States. Army" . . . . "Handbooks and manuals"@en . "Units of radar set AN/MPQ-57 NSN 1430-01-078-9643 tested at the high-frequency console, Hawk Air Defense Missile System"@en . . . . . . "DS and GS maintenance manual : units of radar set AN/MPQ-57 NSN 1430-01-078-9643 tested at the high-frequency console, Hawk Air Defense Missile System"@en . . . . .