STONEX S990A - Page 50

Stonex S990A GNSS Receiver – User Manual v1.0 49
POSITIONING
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HIGH PRECISION STATIC SURVEYING
Horizontal 2.5 mm + 0.1 ppm RMS
Vertical 3.5 mm + 0.4 ppm RMS
CODE DIFFERENTIAL POSITIONING
Accuracy 0.40 m RMS
SBAS POSITIONING
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Accuracy 0.60 m RMS
REAL TIME KINEMATIC (< 30 Km) – NETWORK RTK³
Fixed RTK Horizontal 5 mm + 0.5 ppm RMS
Fixed RTK Vertical 10 mm + 0.5 ppm RMS
INTEGRATED GNSS ANTENNA
High accuracy four constellation micro-strip antenna, zero phase center, with internal multipath
suppressive board
INTERNAL RADIO (optional)⁵
Model TRM 121 1 W
Type Tx - Rx
Frequency range
410 – 470 MHz
902.4 – 928 MHz
Channel Spacing 12.5 KHz / 25 KHz
Range
3 – 4 Km in urban environment
Up to 10 Km with optimal conditions
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