Spectra Precision ProMark 800 Reference Manual - Manual (Page 30)

18
Introduction
• New Z-Blade technology for optimal GNSS performance
– New Ashtech GNSS centric algorithm: Fully
independent GNSS satellites tracking & processing (1).
– Enhanced RTK performance
– Quick signal detection engines for fast acquisition and
re-acquisition of GNSS signals
– Advanced multipath mitigation
• Up to 20 Hz real-time raw data (code and carrier) and
position output
• Supported data formats: ATOM (Ashtech Optimized
Messaging), RTCM 2.3, RTCM 3.1, CMR, CMR+, DBEN,
LRK
• NMEA 0183 messages output
• RTK networks: VRS, FKP, MAC.
Real-Time
Accuracy (RMS)
See footnotes (2) and (3).
SBAS (WAAS/EGNOS/MSAS)
• Horizontal: < 50 cm (1.64 ft)
Real-Time DGPS Position
• Horizontal: 25 cm (0.82 ft) + 1.0 ppm in typical
conditions
Real-Time Kinematic Position (Fine Mode)
• Horizontal: 10 mm (0.033 ft) + 1.0 ppm
• Vertical: 20 mm (0.065 ft) + 1.0 ppm
Real-Time
Performance
Instant-RTK® Initialization
• Independent of GPS availability when other GNSS signals
are available (1)
• Typically 2-second initialization for baselines < 20 km
• 99.9% reliability
RTK initialization range
• > 40 km
Post-Processing
Accuracy (RMS) See footnotes (4) and (5).
Static & Fast Static
1.Z-Blade GNSS centric technology uses all available GNSS signals equally, without any constellation
preference, to deliver fast and stable positioning solution.
2.Accuracy and TTFF specifications may be affected by atmospheric conditions, signal multipath, satellite
geometry and corrections availability and quality. Position accuracy specifications are for horizontal
positioning. Vertical error is typically less than twice the horizontal error.
3.Performance values assume minimum of five satellites, following the procedures recommended in the
product manual. High multipath areas, high PDOP values and periods of severe atmospheric conditions may
degrade performance.