ashtech DG16 - Page 275

NMEA Commands 255
NMEA Commands
The data fields common to each MSG message are listed in Table 8.26:
Table 8.27 lists the remainder of the MSG message for RTCM type 1. The remainder
for RTCM type 9 is identical.
Table 8.28 lists the remainder of the MSG message for RTCM type 2:
Table 8.26. Common MSG Data Fields
Fields Description Range
d1 RTCM message type 1, 2, 3, 6, 9, 16
d2 Station Identifier 0 to 1023
f3 Z count 0 to 9999.9
d4 Sequence number 0 to 9
d5 Station health 0 to 7
d6 Total number of characters following the time tag
(including commas and <CR><LF> characters)
0 to 999
m7 Current GPS time of position fix (hhmmss.ss) 00 to235959.90
Table 8.27. Remainder of Type 1
Fields Description Range
d8 User differential range error (UDRE) 0 to 9
d9 Satellite PRN number 1 to32
f10 Pseudo range correction (PRC) in
meters
±9999.99
f11 Range rate correction (RRC) in meters/
sec
±9.999
d12 Issue of data ephemeris (IODE) 0 to 999
*hh Checksum 2-character
hex
Table 8.28. Remainder of Type 2 Message
Fields Description Range
d8 User differential range error (UDRE) 0 to 9
d9 Satellite PRN Number 1 to 32
f10 Delta Pseudo range correction (Delta PRC) in
meters
±99.99