United Kingdom Air Defence A Brief History Typical East Coast CH Site Chain Home Latticed Masts Many changes have taken place over the years. From the 1940s Chain Home network to present day UK Air Defence. CHAIN HOME Ground Controlled Interception ROTOR Post WW2 Type 13 and 14 Radars BERLIN AIRLIFT ROTOR ROTOR series Ops Room CUBAN MISSILE CRISIS Tripwire Response ICBM Early Warning Console Position Air Defence Radar Stations Type 84 Radar Air Defence Radar Stations Type 85 Radar R3 Ops Rooms UNI Consoles & Upgrades UKADR The UK Air Defence Region is a region of air space, around the United Kingdom The region is 2048 square miles covering the United Kingdom and Faroe Islands. Features of an Air Defence Radar 3 Dimensional Cover. Long Range Detection. Good Clutter Rejection. Secondary Surveillance Radar. Features of an Air Defence Radar Display Facilities Communication Facilities Ground to Air Telephones Data Links Time & Position - Global Position System. Maintainability - Line Replaceable Unit. T101 Radar System Antenna T101 Radar System Radar Management Cabin T101 Radar System Display Workshop Cabin T101 Radar System Power Distribution Cabin T101 Radar System Generator Cabins T101 Main Features Frequency Band GHz Bandwidth 400 MHz Frequency Agility 32 Different User Frequencies. Instrumented Range 254 nautical miles Type 101 Located at: Portreath Kirton in Lindsey 1 Air Control Center (1ACC) UKASACS Air Defence Radar Sites PORTREATH KIRTON IN LINDSEY BUCHAN BENBECULA BRIZLEE WOOD STAXTON WOLD TRIMINGHAM T101 Main Features Pulse Duration s Compressed Pulse Length 400 ns Rotation Speed / Scan Speed 6 rpm Pulse Repetition Interval 854.4 to s T101 Main Features Positional Accuracy at 220Km (118nM) Range48m. Azimuth.0.22 . Height.2,400 feet T101 Main Features Elevation Coverage 0 to 20 with Electronic tilt offset ranging from -2 to . Radio Frequency (RF) Power 200 kW (Spot Frequency). 150 kW (Across the full frequency spread). 5.48 kW Mean (4% duty cycle). UKASACS Air Defence Radar Sites PORTREATH KIRTON IN LINDSEY BUCHAN BENBECULA BRIZLEE WOOD STAXTON WOLD TRIMINGHAM Display Facilities Transmit Inhibit Sectors (TIS). Tracking. Intercept Geometry. Display Facilities Radar Monitoring & Control. UKASACS Link Filter Areas (LFA). Simulation.