NMEA Commands 257
NMEA Commands
Table 8.32 lists the remainder of message for Type 19
Typical MSG message for RTCM type 1:
$GPMSG,01,0000,2220.0,1,0,127,003702:00,2,12,-0081.30,
0.026,235,2,13,0022.86,0.006,106,2,26,-0053.42,-0.070,
155,2,02,0003.56,0.040,120,2,27,0047.42,-0.005,145*7A
d16 Multiple message indicator 1—more messages will follow
with same time tag
0—last message
d18 Data quality indicator
f19 Cumulative loss of continuity indicator (unfixed cycle slips
of loss of lock)
f20 Uncorrected Carrier phase (cycles) sppppppp.pppp
*hh Checksum 2-character hex
Table 8.32. Remainder of Type 19 Message
Parameter Description Range
d13 GPS/GLONASS constellation indicator GPS or GLO
d14 Frequency indicator 00—L1 message
01—L2 message
d21 Smoothing interval 0—1 minute
1—1 to 5 minutes
2—5 to 15 minutes
3—undefined
f15 GNSS time of measurement (in GPS or GLONASS time)
d16 Multiple message indicator 1—more messages will
follow with same
time tag
0—last message
d22 GPS PRN number 0 to 31
d18 Data quality indicator
d23 Pseudo-range multipath error indicator quantization
f24 Uncorrected pseudo-range (meters)
*hh Checksum 2-character hex
Table 8.31. Remainder of Type 18 Message
Parameter Description Range
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