ACE High

ACE High was an abbreviation for Allied Command Europe; a fixed service NATO radiocommunication system which dates back to 1956. The frequency supportability and frequency assignments were profited in accordance with the NATO Joint Civil/Military Frequency Agreement (NJFA). The system was decommissioned in the late 1980s. The system was designed to be an UHF troposcatter radio system, which was meant to provide long-range communication service in the form of telephone and telegraph in the NATO chain of command. These services combined produced over 200 channels and equipment was in place to multiplex them to contain up to 12 different calls each. There were 82 terrestrial stations, located in 9 different NATO countries.