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SIRIUS

® 

TECHNICAL REFERENCE MANUAL 



4.3.3. GPS option 

The table shows the speciﬁcations of the optional GNSS receivers that you can order for your SBOX                 

(including R8, R8DB, etc.). 



See chapter: GPS Connector (DSUB-9). 

GPS receiver 

10 Hz 

100 Hz 

RTK 

NO 

YES 

Update rate 

10 Hz 

1-100 Hz programmable 

WAAS / EGNOS / MSAS 

- 

Yes 

Signal tracked 

GPS 

L1 

L1, L2, L2C 

GLONASS 

L1 

L1, L2, L2C 

SBAS 

Yes 

Accuracy 

Positioning 



Stand-alone 

horizontal 

2.5 m 

1.2 m 

vertical 

3 m 

1.8 m 

SBAS 

horizontal 

1 m 

0.8 m 

vertical 

3 m 

1.2 m 

DGBS 

horizontal 

- 

0.3 m 

vertical 

- 

0.5 m 

RTK 

horizontal 

- 

±2 cm 

vertical 

- 

±2 cm 

Velocity 

1 km/h 

0.1 km/h 

PPS Accuracy 

50 nsec 

30 nsec 

RTK 

RTK initialization time 

- 

< 10 sec 

RTK initialization reliability 

- 

> 99 % 

Correction data input 

- 

RTCM SC104 2.x and 

3.x, CMR, CMR+ 

Acquisition time 

Hot start 

< 3 s 

< 10 s 

Cold start 

< 30 s 

< 60 s 

Limitations 

Velocity 

500 m/s 

514 m/s 

Acceleration 

5 g 

20 g 

Altitude 

18000 m 

 

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