DSO is the Department of Defense center of excellence for electromagnetic spectrum matters, including integrated planning, policy development, electromagnetic environmental effects (E3) engineering, spectrum supportability and operational support. DSO provides support to the Office of the Assistant Secretary of Defense for Networks and Information Integration, the Chairman of the Joint Chiefs of Staff, the unified combatant commands (COCOMs) and the military departments. DSO provides a full spectrum of support from long-range, strategic planning and policy development to support for the acquisition and fielding of spectrum-dependent systems, to operational support to the Warfighter.
The DSO’s vision is: Global Spectrum Access for U.S. and Allied Operations
The Joint Spectrum Center or JSC is a field office within the DSO and is a source of engineering expertise and services dedicated to ensuring effective use of the electromagnetic spectrum.
GEMSIS
Global Electromagnetic Spectrum Information System (GEMSIS) is the Joint program of record that will transform spectrum operations from a pre-planned and static frequency assignment process into a dynamic, responsive, and agile capability. The GEMSIS Program Management Office (PMO) will deliver capabilities through an evolutionary incremental acquisition approach. GEMSIS increments will provide spectrum management capabilities to further enhance the ease of use, efficiency, and effectiveness of spectrum management. The GEMSIS PMO will federate future capabilities and services through a net-centric services concept. This action enables the transformation of the current stove-piped spectrum management capabilities to an autonomous and adaptive environment that accelerates the Warfighter's ability to effectively and efficiently manage the electromagnetic battlespace.
GEMSIS follow on increments will provide spectrum management capabilities to further enhance the ease of use, efficiency and effectiveness of spectrum management.
JSC Division Descriptions
| Operational Support (J3) |
The DSO/JSC provides operational spectrum supportability and Joint Spectrum Interference Resolution support to the Joint Staff, COCOMs, and war-fighting commanders. |
| E3 Engineering Division (J5) |
The DSO/JSC researches, assesses, and models emerging spectrum technologies, manages the DoD E3 program, provides E3 advice and training, develops EM spectrum models and simulations, provides spectrum policy technical advice and assessments. |
| Information System Division |
The DSO/JSC maintains the primary DoD repository for radio frequency spectrum-related data, manages and distributes much of the DSO/JSCs analytical software, manages SPECTRUM XXI operations, and maintains the JSC IT infrastructure. |
| Applied Engineering Division (J8) |
Provides tailored engineering support and guidance that enables the DoD and military services to proactively plan, design, acquire, and operate spectrum-dependent systems compatibility in their intended EME. |
| Spectrum Management Transformation |
The DSO/JSC contributes to efforts to shift DoD spectrum management practices to support net-centric operations. These efforts include development of strategic plans, a Defense Spectrum Management Architecture and participation in the Presidential Spectrum Policy Initiative. |
| International Outreach |
The DSO/JSC supports DoD participation in multinational and intergovernmental coordination and diplomacy, including activities at the International Telecommunication Union. This reflects the global footprint of US and allied operations and systems that depend on reliable access to electromagnetic spectrum. |
JSC Services and Capabilities
The JSC has assembled leading experts in spectrum planning, electromagnetic environmental effects (E3), information systems, modeling and simulation, and operations. These experts provide complete, one-stop spectrum-related services to the military departments and COCOMs. The JSC applies electromagnetic environmental databases and analysis tools and over three decades of experience to assist in both the acquisition and operation of communications-electronics assets. Our services include:
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Spectrum Planning Guidance
To field communications systems, clear and accurate spectrum planning is necessary. New systems must be able to operate with other systems both at home and abroad. It is critical that host nation approval is obtained for permission to use a system abroad and to ensure successful operations of the system. With our knowledge of spectrum use and planning, we can help you select the proper frequency plan for your systems. Our knowledge base is underscored by our support to hundreds of DoD programs and our active role in the spectrum certification process.
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Co-Site Analysis for System Integration
The dependence of modern military operations on electronic systems often means that multiple radiating and receiving equipment must be placed in close proximity, often on the same platform. This can lead to co-site interference that degrades system performance. The JSC has leading experts in preventing and solving co-site problems. Our experts use unique in-house capabilities, such as specialized equipment parameter databases, sophisticated coupling models, and interference analysis tools, designed specifically to predict when co-site interference will occur so remedial measures can be implemented.
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Co-Site Analysis for System Integration
The dependence of modern military operations on electronic systems often means that multiple radiating and receiving equipment must be placed in close proximity, often on the same platform. This can lead to co-site interference that degrades system performance. The JSC has leading experts in preventing and solving co-site problems. Our experts use unique in-house capabilities, such as specialized equipment parameter databases, sophisticated coupling models, and interference analysis tools, designed specifically to predict when co-site interference will occur so remedial measures can be implemented.
Environmental Analysis
The ability of a system to operate compatibly with other systems within its intended electromagnetic environment has become a critical factor in both system acquisition and operational planning. The JSC provides complete environmental analyses using worldwide frequency assignment data, extensive equipment parameter databases, and sophisticated analysis models that can predict when, where, and how interference might occur for terrestrial, air, and space-borne systems.
Test and Measurement Support
The JSC has extensive experience in performing the detailed planning required to ensure that system testing is not compromised by electromagnetic interference at the test site. We also perform system-level tests to ensure that an emerging system has electronic characteristics which will promote electromagnetic compatibility with other systems in its electromagnetic environment. The JSC test facility features over 2700 square feet of shielded enclosures that meet NSA 65-6 and MIL-STD-485 requirements, calibrated equipment for conducting measurements at frequencies from DC to 40 GHz, and customized test configurations.
System Vulnerability Analysis
The JSC assisted in development of the methodologies currently in use by the DoD to determine the vulnerability of a system to interception and jamming. We can assist in applying these methodologies to analyze your system.
Spectrum Management Software Development
The ability of modern military systems to effectively share the spectrum in congested battlefield environments can only be accomplished via the use of sophisticated, user-friendly spectrum management software systems. The JSC has developed nearly all of the spectrum management systems in use by our military services today.
Operational Support
The JSC can assist in the planning of exercises or contingencies by using JSC databases and modeling tools to generate frequency plans and restricted frequency lists. Our planning will ensure that military
JSC E3 Document Library
JSC E3/SS Awareness Training Schedule and Class List
