Length: 2 Days
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Common Data Link (CDL) Training

Common Data Link (CDL) Training is intended as a comprehensive introduction to Tactical Data Links (TDLs) and Common Data Link (CDL) for practicing analysts, engineers or those with similar backgrounds. This 2-day long course is also useful  as an overview for managers who want to have an insightful talking understanding of the topic.

CDL (Common Data Link) is the DoD’s standard communications waveform for Intelligence Surveillance & Reconnaissance (ISR) in airborne platforms. In supporting this standard, the military has numerous air, sea and ground CDL systems for theater connectivity.

CDL (Common Data Link)  can also support space assets that can bring their tactical ISR data directly into the theater, allowing for responsive tasking and collection.

Participants will learn about CDL and concepts behind full-duplex, jam resistant spread spectrum, point-to-point digital links.

Common Data Link (CDL) uses secure protocols along with a full duplex, jam resistant spread spectrum digital data link. CDL is operated by the U.S. Department of Defense (DoD) and U.S. intelligence agencies for wideband real-time downlink transmission of sensor data and real time uplink control of sensor payloads.

Topics Covered

  • Basics of Tactical Data Links
  • Principles behind Intelligence, Surveillance, and Reconnaissance (ISR)
  • Key Concepts of Common Data Link (CDL)
  • Data Link Interoperability
  • Communications between multiple Intelligence, Surveillance, and Reconnaissance (ISR) collection systems
  • Link Parameters
  • Air-to-Air relay program/networking
  • Guardrail Multi-Role Data Link (MRDL)
  • Direct Air to Satellite Relay (DASR)/ Repeater Program.
  • Airborne Information Transmission (ABIT)
  • Principles behind Full-duplex, jam resistant, digital microwave communications
  • Spread Spectrum  in CDL
  • Downlink Data Rate
  • Waveform
  • LOS and BLOS using relay
  • Downlink Frequency
  •  EF/S band (2.2-2.3 GHz) and I/X band (7.25-8.4 GHz) both for military SATCOM,
  • I/X band (9.7-10.5 GHz)
  • Ku-band (14.5-15.35 GHz) for CDL
  • Ku-band (10.95-14.5 GHz)
  • Sensor Payload and Sensor Data
  • Data and Imagery
  • Downlink Sensors
  • Electro-Optical (EO)
  • Infrared (IR)
  • Synthetic Aperture Radar (SAR) images
  • Signals Intelligence (SIGINT)
  • Data Interface
  • Control Interface
  • Class I – Ground-based applications with airborne platforms operating at speeds Mach 2.3 at altitude up to 80,000 ft.
  • Class II – Speeds up to Mach 5 and Altitudes up to 150,000 ft.
  • Class III – Speeds up to Mach 5 and Altitudes up to 500,000 ft.
  • Class IV – Terminals in satellites orbiting at 750nm.
  • Class V – Terminals in relay satellites operating at greater altitudes
  • Bandwidth Efficient CDL (BECDL) systems
  • CDL vs. Tactical common data link (TCDL)
  • Navy Tactical Common Data Link (NTCDL)
  • Network Tactical Common Data Link (NWTCDL)
  • Multi-Platform Tactical Common Data Link (MP-TCDL)
  • Multi-Role Tactical Common Data Link (MR-TCDL)
  • Principles of High-speed encryption, multiplexing, encoding, transmission, demultiplexing, and routing
  • Security Features
  • Low Probability of Intercept (LPI) and Low Probability of Detection (LPD) security features
  • Embedded AES-128/256 Transmission security (TRANSEC)
  • Type 1 Cryptographic & TEMPEST Security

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