Appendix A

Technical Specifications

A.1 Smart-AG Receiver Performance

PERFORMANCE (Subject To GPS System Characteristics)

Position Accuracy a

Standalone:

 

 

L1

1.8 m RMS

 

SBAS b

0.6 m RMS

 

DGPS

0.45 m RMS

 

RT-20

0.20 m RMS

 

Post Processed

5 mm + 1 ppm RMS

Time To First Fix

Hot: 35 s (Almanac and recent ephemeris saved and approximate position)

Warm: 40 s (Almanac, approximate position and time, no recent ephemeris)

 

 

Cold: 65 s (No almanac or ephemeris and no approximate position or time)

Reacquisition

0.5 s L1 (typical)

 

Data Rates

Raw

20 Hz

 

Measurements:

 

Computed

 

 

Position:

20 Hz

Time Accuracy a c

20 ns RMS

 

Velocity Accuracy

0.03 m/s RMS

 

Measurement Precision

C/A code phase

6 cm RMS

 

L1 carrier phase:

 

 

Differential

0.75 mm RMS

Dynamics

Velocity

515 m/s d

a.Typical values. Performance specifications are subject to GPS system characteristics, U.S. DOD operational degradation, ionospheric and tropospheric conditions, satellite geometry, baseline length and multipath effects.

b.GPS-only

c.Time accuracy does not include biases due to RF or antenna delay.

d.In accordance with export licensing.

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SMART-AG User Manual Rev 2

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Novatel SMART-AG user manual Appendix a