Specifications

170 Z-Family Technical Reference Manual
Remaining message for type 19 (uncorrected pseudorange measurements) and 21
(RTK pseudorange correction).
size for type 19 /21:
total number of svs for L1 and L2 frequency + 2*(13 byte
Freq+sm+GNSS) + 3 byte chksum + 2 byte <enter>
Examples:
$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,-0.004,145*cc <enter>
$GPMSG,03,0000,1200.0,7,0,038,231958.00,-2691561.37,-4301271.02,
3851650.89*cc <enter>
$GPMSG,16,0000,1209.6,5,0,036,23200.008,THIS IS A MESSAGE
SENT FROM BASE*cc <enter>
Table 6.105: Remainder of Type 19 and 21 Messages
Parameters Description Range
d8 L1 or L2 frequency 00...01
d9 Smoothing interval 00 - 0..1 min
01 - 1..5 min
10 - 5..15 min
11 - indefinite
d10 GPS time of measurement 0..599999 [usec]
d11 CA code /P code indicator 0 - CA, 1 -P
d12 SV prn 1..32
d13 data quality 0..7 refer to RTCM spec. for table of
pseudorange error
d14 multipath error 0..15 refer to RTCM spec. for table of
multipath error
f15 type 19 - pseudorange
type 21 - pseudorange correction
0..85899345.90 meters
+/-655.34 [0.02 meter] when pseudorange
scale factor is 0
+/-10485.44 [0.32 meter] when
pseudorange scale factor is 1 (default)