This important project report provides a chronological overview of the Navy's communications activities, which examines the technological developments of the Navy's shore-based communications systems and identifies the principal installations involved in the Navy's communications efforts The study also examines the property types associated with the Navy's Cold War communication program, such as transmitter stations, receiver stations, high frequency direction finder (HF/DF) stations, and the various antenna types. The Navy Cold War Communication Context was undertaken to develop a national historic context for the Navy's Cold War communication program between 1946 and 1989, and was designed to serve as a companion volume to the Legacy-funded Navy Cold War Guided Missile Context. CHAPTER I * INTRODUCTION * Overview of Project * Research Objectives * Previous Investigations * CHAPTER II * METHODOLOGY * Archival Research * Field Investigations * Data Synthesis * Organization of the Report * CHAPTER III * THE U.S. NAVY'S ROLE IN THE COLD WAR COMMUNICATION PROGRAM, 1946-1989 * Introduction * Early Wireless Communications: 1900-1920 * Navy's Early interest in Wireless Technology * Establishing a Chain of High-Powered Communication Stations * Research and Development (R&D) Efforts During World War I * Expansion of the Navy's Communication Network During World War I * The Electronics Age and Depression Years: 1920s-1930s * Post War Organization of the Naval Shore System * Upgrading the Navy's Radio Stations * Postwar R&D Activities Naval Communications During World War II: 1940-1945 * Developments in Radar Technology * Naval Intelligence Efforts * Expansion of the Navy's Communication Network * Reorganization of the Naval Communication Program. Truman and Eisenhower Years: 1946-1960 * Establishment of the Intelligence Community * Expansion of the Military's Surveillance Network * Formation of the Naval Communication System * Continued R&D Efforts * Expansion of the Navy's Shore Facilities * Establishment of the Naval Security Group Activity (NSGA) * The Vietnam Era: 1961-1972 * Expansion of the U.S. Naval Communication Station (NAVCOMSTA), Roosevelt Roads, Puerto Rico * Role of Early Satellite Communications * The Navy's Satellite Communication Research Facilities * Post-Vietnam Era: 1973-1989 * Advancements in Satellite Communications * Role of Military Communications and Surveillance Activities Conclusion * CHAPTER IV * PROPERTY TYPES ASSOCIATED WITH THE NAVY'S SHORE-BASED COMMUNICATION PROGRAM * Introduction * SHORE-BASED COMMUNICATIONS FACILITIES * Classification of Shore Communication Facilities * Transmitters Versus Receivers * RECEIVER STATIONS * Introduction * Evolution of Receiver Stations * Associated Property Types * Antenna Array * Receiver Building * Support Buildings * TRANSMITTER STATIONS * Introduction * Evolution of Transmitter Stations * Associated Property Types * Antenna Array * Transmitter Buildings * Helix Houses * Support Buildings * COMMUNICATION CENTERS * Introduction * Evolution of Communication Center * Associated Property Types * Terminal Equipment (TE) Buildings * Satellite Communications (SATCOMM) Earth Stations * DIRECTION FINDER (D/F) STATIONS * Introduction * Evolution of D/F Stations * Associated Property Types * Antenna Array * Operations Building * Antenna Maintenance Shop * SHORE-BASED COMMUNICATIONS AND SURVEILLANCE SYSTEMS * Classification of the Navy's Communications Systems * Strategic Versus Tactical Systems * The Navy's Frequency Spectrum * Radio Wave Propagation * SEARCH RADARS * Introduction * Evolution of Search Radars * Associated Property Types * Over-the-Horizon (OTH) Radars * AN/FPS-117 Radar * Phased Array Radars * DIRECTION FINDERS (D/F)