Product Manual

Table Of Contents
367
Query Command Library
Parameters
Fields f5-f7 are empty is the corresponding signal is not
tracked.
Satellite Usage Status:
Satellite Correcting Status:
Parameter Description Range
d1 Number of satellites locked 1-27
d2 SV PRN number (64+satellite slot number)
GPS: 1-32
SBAS: 33-64
d3 SV azimuth in degrees 0-359
d4 SV elevation angle in degrees 0-90
f5 SV L1 signal/noise in dB.Hz 30.0-60.0
f6 SV L2 signal/noise in dB.Hz 30.0-60.0
f7 SV L5 signal/noise in dB.Hz 30.0-60.0
d8 Satellite usage status (see table below) 0-31
d9 Satellite correcting status (see table below) 0-15
*cc Checksum *00-*FF
Status Description
0 Satellite not tracked
1 Code and carrier/Doppler data used
2 Code-only data used
3 Carrier/Doppler-only data used
4-14 Reserved
15 Unknown usage status
16 No navigation data for this satellite
17 Satellite below elevation mask
18 Satellite declared as unhealthy in ephemeris
19 Computed coordinates of satellite are invalid
20 Satellite has been disabled by a $PASH command
21 URA in ephemeris is not acceptable
22 SV is unhealthy according to almanac
23 Too low SNR
24 Suspected of being a ghost satellite
25
Because of too many Satellites used in the PVT, this satellite has
been deselected
26-30 Reserved for future causes of rejection
31 Other cause
Status
0 Satellite is not tracked
1 Satellite is not corrected
2 SBAS is corrected
3 DGPS is corrected