Appendix F – DL Logs
DL™ User Manual Rev 3 67
GROUPA
Structure:
Field # Field type Data Description Example
1 $GROUPA Log header $GROUPA
2 GroupName Log group DIFFBASE
3 SessionName Session Name 8ABC9
4 AntSN Antenna serial number CGA95040020
5 AntType Antenna type 502NK
6 AHeight Antenna height (m) 2.050000
7 ECutoff Elevation cutoff (degrees) 5.000000
8 SatLimit Satellite observations limit 5
9 GroupStatus Group status flag (hexadecimal), see Table . 01
10 StnHealth Station health 4
11 StnID Station ID 1
12 Lat_Time Latitude (degrees) or Time (s) 51.116321
13 Long_Horz Longitude (degrees) or Horizontal (m) -114.038336
14 Height_Vert Height (m) or Vertical (m) 1048.207
15 SiteNumber Site number 7ABCD8
16 SiteName Site name Company Building
17 Ameasure Antenna height measurement method 502-TRUE
18 Res1 Reserved for future use
19 Res2 Reserved for future use
20 Res3 Reserved for future use
21 LogID Log identifier P20A
22 LogTrigger Trigger event for log ONTIME
23 LogRate Repetition period for log 10.00
24 LogStatus Log status flag (hexidecimal), see Table 18: Log Status Word
Encoding, Page 68.
01
25 Res4 Reserved for future use
26 …n-2 … Additional log specifications …
n-1 *xx Checksum *23
n [CR][LF] Sentence terminator [CR][LF]
Example:
$GROUPA,DIFFBASE,8ABC9,CGA95040020,502NK,2.050000,5.000000,5,01,4,1,
51.116321,-114.038336,1048.207,7ABCD8,Company Building,502-TRUE,,,,
P20A,ONTIME,10.00,01,,RGEA,ONTIME,2,01,,REPA,ONCHANGED,0,02,*23[CR][LF]
Table 17: Group Status Word Encoding
Field Bit Mask Description
GROUP_ST_FIX 0x01 GPS Position fixed, 1 = fixed, 0 = unfixed
GROUP_ST_AVE 0x02 GPS Position averaged, 1 = averaged, 0 = not averaged
GROUP_ST_KINEMATIC 0x04 Survey type, 1 = kinematic, 0 = static