Novatel GNSS Receiver and Antenna SMART-AG - Manual (Page 58)

58 SMART-AG User Manual Rev 5
Appendix A Technical Specifications
A.1 SMART-AG Receiver Performance
PERFORMANCE
Channel Configuration
14 GPS L1
12 GLONASS L1 (optional)
2 SBAS
a
a. Satellite Based Augmentation Systems (SBAS) include WAAS (North America), EGNOS (Europe)
and MSAS (Japan).
Horizontal Position Accuracy (RMS)
b
b. Typical values. Performance specifications subject to GPS system characteristics, US DOD
operational degradation, ionospheric and tropospheric conditions, satellite geometry, baseline
length, multipath effects and the presence of intentional or unintentional interference sources.
Export licensing restricts operation to a maximum velocity of 515 metres per second.
Absolute P2P
c
Autonomous 1.6 m 25 cm
SBAS
a
0.8 m 18 cm
DGPS 0.5 m 23 cm
RT-20 d (optional) 0.2 m 2 cm
c. Typical values with GL1DE enabled. “Pass to pass” or time relative position error is the one
dimensional horizontal (cross track) position error after 15 minutes or less after an initial
convergence of at least 10 minutes.
d. Expected accuracy after convergence. RT-20 is independent of GL1DE.
Measurement Precision
L1 C/A Code 18 cm RMS
L1 Carrier Phase 1.5 mm RMS
Maximum Data Rate
e
e. Model specific.
Measurements 20 Hz
Position 20 Hz
Time to First Fix
Cold Start f 65 s
Hot Start
g
35 s
f. Typical value. No almanac or ephemerides and no approximate position or time.
g. Typical value. Almanac and recent ephemerides saved and approximate time entered. For more
information, Please refer to the “SETAPPROXTIME” command in the OEMV Family Firmware
Reference Manual found on our Web site at
www.novatel.com/support/firmware-software-and-
manuals/product-manuals-and-doc-updates/ .
Signal Reacquisition L1 0.5 s (typical)
Time Accuracy 20 ns RMS
Velocity Accuracy
b 0.03 m/s RMS