Baseline Spec Template - NEXRAD Radar Operations Center

Document Number 2620002GCode Identification 0WY55WSR-88D ROCTBDDUAL POL - DRAFT3.2.4 Message TablesTable II Message Header DataNAME DESCRIPTION (3) FORMAT UNITS (4) RANGE ACCURACY/PRECISIONBYTELOCATIONMessage Size Message size in halfwords (1) Integer*2 halfword 9 to 1 0 and 165535RDARedundantChannelChannel Numbers for:Legacy0 = Single Channel (no bits set)1 = Redundant Channel 1 (bit 0 set)2 = Redundant Channel 2 (bit 1 set)ORDA8 = Single Channel (bit 3 set)9 = Redundant Channel 1 (bits 3 &0 set)10 = Redundant Channel 2 (bits 3 &1 set)Integer*1 N/A 0 to 10 1 2Message Type Integer code from Table I Integer*1 N/A 1 to 31 N/A 3I.D. Sequence1 4 and 5NumberMessage Sequence Number Integer*2 N/A 0 to65535then rollover to 0Julian Date Julian Date - 2440586.5 (2) Integer*2 d 1 to65,535Milliseconds Number of millisecondsInteger*4 msec 0 toof Day from Midnight, Greenwich Mean86,399,9Number ofMessageSegmentsMessageSegmentNumberTimeMessage larger than 1208 halfwordsare segmented and transmittedseparately except for Message 31that has a segment size of 65535halfwords (5)99Integer*2 N/A 1 to65535Segment number of this message Integer*2 N/A 1 to655351 6 and 7± 2000/± 1Notes:1. This is the message size for this message segment, not for the total of all segments in themessage.2. 1 January 1970 00.00 Greenwich Mean Time = 1 Modified Julian Date.3. All bit locations are referenced to location 0 (LSB).4. See Appendix B for unit definitions and standard symbology.5. For all message numbers as described in Table I, Data Message Types, the maximum segmentsize is 1208 halfwords except for Message Type 31, Digital Radar Data Generic Format, which canhave a segment as large as 65535 halfwords.8 to 111 12 and 131 14 and 153-10