Terminal Communications AN/UGC-74A (V) 3, Command Structure References; MOS: 05C, 31J, 31V, 72E, GTA 11-10-28

Format is 16 inches by 5 inches, Single sheet, printed on both sides. Single hole punched at top. Item has some wear and soiling. Distribution was to US Army Training Aids Centers Diagram. This is related to the equipment covered in Department of the Army technical manual, TM 11-5815-602-10. Military communications or military signals involve all aspects of communications, or conveyance of information, by armed forces. Military communications progressed to visual and audible signals, and then advanced into the electronic age. Military Communications include text, audio, facsimile, tactical ground-based communications, terrestrial microwave, tropospheric scatter, naval, satellite communications systems and equipment, surveillance and signal analysis, encryption and security and direction-finding and jamming. Many modern pieces of military communications equipment are built to both encrypt and decode transmissions and survive rough treatment in hostile climates. They use different frequencies to send signals to other radios and to satellites. Military communications - or "comms" - are activities, equipment, techniques, and tactics used by the military in some of the most hostile areas of the earth and in challenging environments such as battlefields, on land, underwater and also in air. Military communications include command, control and communications and intelligence and were known as the C3I model before computers were fully integrated. The U.S. Army expanded the model to C4I when it recognized the vital role played by automated computer equipment to send and receive large, bulky amounts of data. The advent of distinctive signals led to the formation of the signal corps, a group specialized in the tactics of military communications. The signal corps evolved into a distinctive occupation where the signaler became a highly technical job dealing with all available communications methods including civil ones. Military communication is intense and complicated, and often motivates the development of advanced technology for remote systems such as satellites and aircraft, both manned and unmanned, as well as computers. Although military communication is designed for warfare, it also supports intelligence-gathering and communication between adversaries, and thus sometimes prevents war. There are six categories of military comms: the alert measurement systems, cryptography, military radio systems, nuclear command control, the signal corps, and network-centric warfare. Presumed First Edition, First printing [thus].…