| | Spectrum XXI (SXXI) |
| | Primary Purpose | SXXI is The Spectrum Management (SM) Tool |
| | designated by the MCEB as The Joint DOD SM |
| | standard. It is used to create, modify, renew, |
| | and delete permanent/temporary frequency |
| | assignments/proposals worldwide. |
| | Sub-Functions | SXXI has the following modules: Data Exchange |
| | (provides real time access to all DOD frequency |
| | assignments worldwide); Interference Analysis |
| | module to determine who could be causing |
| | interference; EW Deconfliction module used to |
| | perform EW missions and determine what friendly |
| | forces would be interfered with if the Jamming |
| | mission was initiated; Engineering Tools module |
| | has the capability to generate using NIMA |
| | topographic data terrain coverage plots, signal |
| | strength coverage plots, and line-of-sight |
| | coverage plots, its also has an HF propagation |
| | model, a Satellite look angle, a Spectrum |
| | Occupancy Chart, a Cosite Analysis tool, and a |
| | coordinate conversion routine (lat/long to mil |
| | grid and vice versa); it has a JRFL module Joint |
| | Restricted Frequency List which is used in |
| | conjunction with the EW module to determine the |
| | interference to CEOIs, JRFLs, and Host Nation |
| | frequency assignments; it has an Interference |
| | report module used with the JSIRs program (Joint |
| | Spectrum Interference Resolution) which replaced |
| | the old MIJI reporting system; it has an |
| | Allotment Plan Generator used to pool frequencies |
| | to an organization, which can be placed in a |
| | holding area in the software so the best |
| | frequencies can be used based on the user |
| | background environment. |
| | Equipment Requirements | SXXI is PC based and will operate on Windows |
| | 95/98/NT 4.0 w/service pack 5 or better/2000. |
| | Recommend a 550 MHz Pentium III processor, with |
| | 128 MB RAM, and 9 GB HDD (depends on how large a |
| | database is to be loaded). |
| | Connectivity Requirements | SXXI can be used in a Standalone mode or |
| | connected to the SIPRNET. To connect to the |
| | SIPRNET user's must be using NT 4.0 w/SP5+ or a |
| | user can connect via STU-III models 1100, 1900, |
| | 1910, or via STEs. Users who will connect to |
| | regional servers to download real time frequency |
| | management data must attend the SXXI training |
| | course and fill out two separate access forms. |
| | Crypto Requirements |
| | Normal Locations | As the Joint DOD standard, it is used by the |
| | Service's frequency management agencies (at the |
| | National level), all CINC's, all the component |
| | forces, and at the post/camp/station/base |
| | frequency manager levels. |
| | Information Managed |
| | Products Created |
| | Lead Service/Contractor | The lead organization is the Joint Spectrum |
| | Center (JSC), Annapolis MD and their prime |
| | contractor is IIT Research Institute (IITRI). |
| Current Fielding Status | Fielded V2.0.2. |
| Known Problems |
| DIICOE Compliance Rating | In process to be Level 6 compliant. |
| Point of Contact | JSC MR William (Skip) Shealy DSN:281-4956; |
| Contractor: Brooks Remencus |
| (410) 573-7451 DSN: 281-2511 x 7451. |
| Updated by | Captain Eric S. Johnson, USMC, CCSC-01. |
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