Specification Number 2810000A Code Identification OWY55 R400-SP501A 1 September 1996 NEXRAD SYSTEM/SEGMENT SPECIFICATION Prepared By The NEXRAD Operational Support Facility APPROVED FOR USE AS BUILD 9.0 FUNCTIONAL BASELINE DISTRIBUTION STATEMENT A. Approved for public release; distribution unlimited. Specification Number 2810000A Code Identification OWY55 R400-SP501A 1 September 1996 ISSUE DATES FOR REVISIONS TO NEXRAD SYSTEM/SEGMENT SPECIFICATION 10 September 1982, R400-SP101 (System Definition Phase) 11 May 1983, R400-SP202 (Validation Phase, Part 1) 15 May 1984, R400A-SP202 (Validation Phase, Part 2) 15 November 1984, R400A-SP203 (Validation Phase, Part 2 Update) 1 January 1986, R400-SP301 (Limited Production Phase) 1 November 1991, R400-SP401A (Full Scale Production Phase) The following Changes were incorporated in Revision 2810000A (R400-SP501A) 9 April 1986, R400-SP301 (Change 1) 2 December 1986, R400-SP301 (Change 2) 24 March 1987, R400-SP301 (Change 3) 1 May 1987, R400-SP301 (Change 4) 1 June 1991, R400-SP401 (Draft) 1 November 1991, R400-SP401A 1 July 1995, 2810000 (R400-SP501), Revision - Single copies available from: NEXRAD Operational Support Facility (OSF) Norman, OK 73072 i Specification Number 2810000A Code Identification OWY55 R400-SP501A 1 September 1996 NEXRAD SYSTEM/SEGMENT SPECIFICATION CHANGE HISTORY CHANGE NO TYPE NTR PARA SHALL NO FUNCTIONAL AREA DATE ACTION TAKEN APPROVED W4210-036R2 WAIVER 3.7.2.4 N/A COMMUNICATIONS 11/14/91 DELETED W4210-037R2 WAIVER 3.2.6.1 N/A ENVIRONMENTAL 11/14/91 INCORPORATED W4210-038R4 WAIVER 3.3.1.5 3a4 DESIGN/CONSTRUCTION 01/16/92 INCORPORATED W4210-043R4 WAIVER 3.3.1.5 3 a (5) DESIGN/CONSTRUCTION 11/14/91 INCORPORATED REQUIREMENT MODIFIED W4210-046R1 WAIVER 3.7.5.4.1 N/A FACILITIES 11/14/91 DELETED W4210-064R1 WAIVER 3.2.1.4 N/A PERFORMANCE 03/26/92 DELETED W4210-071R1 WAIVER 3.2.1.3 N/A PERFORMANCE (RTR) 03/26/92 REQUIREMENT DELETED W4210-078 WAIVER 3.3.8.4 10B COMPUTER PROGRAM/CODING 10/22/90 ORIGINAL REQUIREMENT DELETED W4210-087R2 WAIVER 3.2.6.11 CE03,CE07 EMISSIONS 11/14/91 ORIGINAL REQUIREMENT REINSTATED W4210-088R2 WAIVER 3.3.1.5 4 HUMAN PERFORMANCE/ENG 11/14/91 REQMT DELETED 3.3.7 HUMAN PERFORMANCE/ENG REQMT MODIFIED W4210-089R1 WAIVER 3.7.5.4.2 N/A ACCESS 11/14/91 WAIVER DELETED W4210-100R2 WAIVER 3.3.1.5 3 a (4) DESIGN/CONSTRUCTION 01/16/92 REQMT REVISED W4210-102R2 WAIVER 3.2.6.2 N/A PRESSURE/ALTITUDE 11/14/91 ORIGINAL REQUIREMENT REINSTATED W4210-103R2 WAIVER 3.2.6.11.1 3 a EMISSIONS 11/14/91 ORIGINAL REQUIREMENT REINSTATED W4210-109R1 WAIVER 3.2.6.1 N/A ENVIRONMENTAL 11/14/91 INCORPORATED W4210-118R1 WAIVER A3.2.1.5.5 N/A TIMING 11/14/91 DELETED W4210-119R1 WAIVER 3.3 N/A DESIGN/CONSTRUCTION 11/14/91 DELETED W4210-120 WAIVER A3.2.1.5.5 N/A DATA LINK LAYER 11/14/91 DELETED W4210-121 WAIVER 3.3.6 N/A SAFETY (GROUNDING) 11/14/91 DELETED W4210-122 WAIVER 3.3.7 N/A HUMAN PERFORMANCE/ENG 03/26/92 INCORPORATED REQUIREMENT MODIFIED ii Specification Number 2810000A Code Identification OWY55 R400-SP501A 1 September 1996 CHANGE NO TYPE NTR PARA SHALL NO FUNCTIONAL AREA DATE ACTION TAKEN APPROVED W4210-123R3 WAIVER 3.7.1.2.2.1 N/A AZIMUTH SAMPLE INTERVAL 08/10/92 INCORPORATED REQUIREMENT W4210-125 WAIVER 3.3.7 N/A HUMAN PERFORMANCE/ENG 08/10/92 INCORPORATED REQUIREMENT MODIFIED W4210-126 WAIVER 3.3.7 N/A HUMAN PERFORMANCE/ENG 08/10/92 INCORPORATED REQUIREMENT MODIFIED W4210-130R1 WAIVER 3.2.6.1 N/A ENVIRONMENTAL 08/10/92 INCORPORATED REQUIREMENT MODIFIED W4210-133 WAIVER 3.3.6 N/A SAFETY 08/10/92 DELETEED W4210-134 WAIVER 3.3.6 N/A SAFETY 08/10/92 DELETED W4210-136R1 WAIVER 3.7.4.4.2 1,2 MLOS FACILITIES 07/15/94 ORIGINAL REQUIREMENT REINSTATED W4210-137 WAIVER 3.3 N/A THREAD ENGAGEMENT 08/10/92 ORIGINAL REQUIREMENT REINSTATED W4210-141 WAIVER 3.3.6 3 SAFETY 04/12/94 DELETED W4210-142 WAIVER 3.3.7.1.2 N/A HUMAN PERFORMANCE/ENG 08/11/94 ORIGINAL REQUIREMENT REINSTATED W4210-143 WAIVER 3.2.6.1 N/A ENVIRONMENTAL 12/15/94 INCORPORATED W4210-147 WAIVER 3.3.4 N/A ENVIRONMENTAL 08/08/94 ORIGINAL REQUIREMENT REINSTATED W4210-148 WAIVER 3.3.1.5 N/A DESIGN/CONSTRUCTION 12/15/94 INCORPORATED 4210-108R1 ECP 3.7.2.7 N/A ARCHIVING 10/09/92 INCORPORATED 4210-109R1 ECP 3.7.3.6; 3.7.4 N/A NARROWBAND 01/28/92 INCORPORATED 4210-111C1 ECP 3.7.4 N/A MLOS 01/31/92 INCORPORATED 4210-146 ECP ALL N/A BUILD 6.0 (VME/MICRO5) 04/30/93 INCORPORATED 4210-147 ECP ALL N/A BUILD 6.0 (VME/MICRO5) 04/30/93 INCORPORATED 4210-151C1 ECP ALL N/A BUILD 7.0 (REDUNDANCY) 06/01/94 INCORPORATED 4210-153C1 ECP 3.7.1.2.1.4 1 - 6 BUILD 7.1.3 (SPOT BLANKING) 12/15/94 INCORPORATED 4260-039 ECP 3.2.1.5.1 5a -7 FAA DUAL UCPs 12/`15/94 INCORPORATED iii Specification Number 2810000A Code Identification OWY55 R400-SP501A 1 September 1996 CHANGE NO TYPE NTR PARA SHALL NO FUNCTIONAL AREA DATE ACTION TAKEN APPROVED 4260-045R1 ECP 3.7.1.4 11 REDUNDANT SYSTEM DUAL 04/15/96 INCORPORATED FREQUENCIES SPO1-016 CCP APP-C FFP ALGORITHM REPORT 02/13/93 INCORPORATED SPO1-040 CCP 3.7.2.6 N/A RPG STATUS MONITORING 12/16/93 INCORPORATED SPO1-045 CCP APP-E 30 NEXRAD PRODUCTS 05/26/94 INCORPORATED SPO1-046 CCP APP-E 29 NEXRAD PRODUCTS 05/26/94 INCORPORATED SPO1-061 CCP 3.7.3.7 N/A STATUS MONITORING 05/26/94 INCORPORATED F0013-R00A00 ECP ALL N/A BUILD 8.0 03/31/95 INCORPORATED F0048-R00A00 ECP ALL N/A BUILD 9.0 01/26/96 INCORPORATED iv Specification Number 2810000A Code Identification OWY55 R400-SP501A 1 September 1996 Table of Content 1. SCOPE ............................................................................................ 1-1 2. APPLICABLE DOCUMENTS........................................................................... 2-1 2.1 Government Documents..................................................................... 2-1 2.1.1 Military Standards ........................................................................ 2-1 2.1.2 Federal Documents ....................................................................... 2-2 2.2 Non-Government Documents................................................................. 2-2 2.2.1 American National Standards Institute (ANSI) Standards ........................................ 2-2 2.2.2 Electronic Industries Association (EIA) Documents ............................................. 2-3 2.2.3 Other Non-Government Documents.......................................................... 2-3 2.3 Precedence of Documents ................................................................... 2-3 3. REQUIREMENTS.................................................................................... 3-1 3.1 System Definition .......................................................................... 3-1 3.1.1 General Description ....................................................................... 3-1 3.1.1.1 System Users........................................................................... 3-1 3.1.1.1.1 Principal Users........................................................................ 3-1 3.1.1.1.2 Other Users........................................................................... 3-2 3.1.1.2 Product Generation ...................................................................... 3-2 3.1.1.3 Product Distribution ..................................................................... 3-2 3.1.1.3.1 Principal User Product Distribution ....................................................... 3-3 3.1.1.3.2 Other User Products ................................................................... 3-4 3.1.1.4 Principal User Processing and Display ...................................................... 3-4 3.1.1.5 Radar Siting............................................................................ 3-4 3.1.1.6 Support Facilities ....................................................................... 3-4 3.1.1.6.1 Maintenance and Supply Depots ......................................................... 3-5 3.1.1.6.2 Maintenance Training Facility ............................................................ 3-5 3.1.1.6.3 Operational Training Facility ............................................................. 3-5 3.1.1.6.4 Operational Support Facility ............................................................. 3-5 3.1.1.7 Functional Areas ........................................................................ 3-6 3.1.1.7.1 Radar Data Acquisition ................................................................. 3-8 3.1.1.7.2 Radar Product Generation ............................................................... 3-8 3.1.1.7.3 Principal User Processing ............................................................... 3-8 3.1.1.7.4 Communications ...................................................................... 3-8 3.1.1.7.5 Facilities ............................................................................. 3-8 3.1.1.7.6 Support .............................................................................. 3-9 3.1.2 Missions ................................................................................ 3-9 3.1.2.1 Department of Commerce Missions ........................................................ 3-9 3.1.2.2 Department of Defense Missions........................................................... 3-9 3.1.2.3 Department of Transportation Missions..................................................... 3-9 3.1.2.4 System Mission........................................................................ 3-10 3.1.3 System Diagrams........................................................................ 3-10 3.1.4 Communications Interfaces ..............................................................