Novatel DL-L1 GPS Receiver User Manual


 
Appendix F DL Logs
66 DL User Manual Rev 3
DIRA/B
The DIRA/B log is used to present a summary of stored logs in the DL memory module.
DIRA
Structure:
Field # Field type Data Description Example
1 $DIRA Log header $DIRA
2 FileName Name of stored log file (8.3 format) 31240201.PDC
3 FileSize Size of stored log file in bytes 412514
4 Date Date file was last updated (yyyymmdd) 19971022
5 *xx Checksum *43
6 [CR][LF] Sentence terminator [CR][LF]
Example:
$DIRA,31240201.PDC,412514,19971022*43[CR][LF]
DIRB
Message ID = 1027; Message byte count = 36
Format:
Field # Data Bytes Format Units Offset
1 Sync 3 Char 0
(header) Checksum 1 Char 3
Message ID 4 Integer 4
Message byte count 4 Integer 8
2 FileName 13 Char 12
3 Filler 3 Char 25
4 FileSize 4 Unsigned long Bytes 28
5 Date 4 Unsigned long 32
GROUPA/B
The GROUPA/B log captures the GPSCard logging configuration used to generate a particular log file, containing Group
Status and Log Status information, important site information, and differential corrections base station parameters.