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Table 6.69: $GPMSG Response for RTCM Message 18 (continued)
RTCM type 19 is the uncorrected code phase message used to transmit data to the
rover for RTK processing. The format for RTCM type 19 is:
Table 6.70 outlines the $GPMSG response message format for RTK Uncorrected
Pseudoranges (Type 19):
158
Item
-0607101.0039
Carrier phase (cycles)
*33
Message checksum in hexadecimal
$GPMSG,d1,d2,f1,d3,d4,d5,m1,s1,d6,d7,d8,n(d9,d10,d11,d12,f2)*cc
Table 6.70: $GPMSG Structure for RTCM Message Type 19
Field
d1
RTCM type, 19
d2
Station identifier, 0000 to 1023
f1
Z count in seconds and tenths, 0000.0 to 3600.0
d3
Sequence number, 0 to 7
d4
Station health, 0 to 7
d5
Total number of characters after the time item, 000 to 999
m1
Current UTC time of position computation in hours,
minutes, and seconds
s1
GPS / GLONASS Constellation Indicator
d6
Frequency Indicator: "00": L1 message, "01": L2 message,
"10","11" :Reserved
d7
Smoothing Interval (0=1 min, 1 = 1..5 min, 2=5..15 min,
3=undefined)
d8
GNSS Time of measurement (GPS or GLONASS time)
(added to Z-Count)
The following data is displayed for each Satellite in the
message:
d9
Multiple message indicator (1 = more messages will follow
with same time tag, 0 = last message)
d10
GPS (PRN Range 0-31) or GLONASS (Slot number 1-24)
Satellite ID
d11
Data Quality Indicator (See RTCM Paper 88-97/SC104-156
Version 2.2)
Description
Description
GG Surveyor GPS+GLONASS Reference Manual
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