Instruction manual

Command Response Formats Page 113
Command
The structure for RTCM message types 6 and 16 is shown below, except that type 6
does not contain text:
$GPMSG,rr,sss,zzz,z,s,h,ccc,hhmmss:ss,text*cc
where each item is as described in Table 4.61.
Example 3:
$GPMSG,16,0000,1209.6,5,0,038,232008:00,THIS IS A MESSAGE
SENT FROM BASE*5C
where each item is as described in Table 4.62.
038 Total number of characters after the time item
231958:00 Current time in hours, minutes and seconds
-2691561.37 Station X component
-4301271.02 Station Y component
+3851650.89 Station Z component
6C 6C message checksum in hexadecimal
Table 4.61: Structure for RTCM Message Types 6 and 16
Field Description
rr RTCM type 6 or 16
sss station identifier, 0000 to 1023
zzz.z Z count in seconds and tenths, 0000.0 to 3600.0
s sequence number, 0 to 7
h station health, 0 to 7
ccc total number of characters after the time item, 000 to 999
hhmmss:ss current GPS time of position computation in hours, minutes, seconds
text text message, type 16 only
8*cc checksum, type 6 only
9*cc checksum, type 16 only
Table 4.62: Typical RTCM Message Types 6 and 16
Item Description
16 RTCM type
0000 Station ID
Table 4.60: Typical RTCM Message Type 03 (continued)
Item Description