Spectra Geospatial SP90M Ultra-Rugged GNSS Receiver

GNSS ENGINE

• 480 GNSS tracking channels
• GPS L1 C/A, L1P (Y), L2P (Y), L2C, L5, L1C
• GLONASS L1 C/A, L1P, L2 C/A, L2P, L3, L1/L2 CDMA ¹
• GALILEO E1, E5a, E5b, E6
• BeiDou B1, B2, B3 ¹
• QZSS L1 C/A, L1s, L1C, L2C, L5
• IRNSS L5
• SBAS L1 C/A, L5
• Two MSS L-band tracking channels
• Two GNSS antenna inputs ²

FEATURES

• Patented Z-tracking to track encrypted GPS P(Y) signal
• Patented Strobe™ Correlator for reduced GNSS multipath
• Patented Z-Blade technology for optimal GNSS performance:
• Highest quality of raw data (availability/reliability) to meet reference station applications
• Full utilization of signals from all seven GNSS systems (GPS, GLONASS, BeiDou, Galileo, QZSS, IRNSS, and SBAS)
• Enhanced GNSS-centric algorithm: fully-independent GNSS signal tracking and optimal data processing, including GPS-only, GLONASS-only or BeiDou-only solution (from Autonomous to full RTK) ³
• Fast and stable RTK solution
• Fast Search engine for quick acquisition and re-acquisition of GNSS signals
• Patented SBAS ranging for using SBAS code & carrier observations and orbits in RTK processing
• Position in local datums and projections with RTCM-3 transformation data
• Support for Trimble RTX™ real-time correction services
• Support for CenterPoint® RTX Post-processing service
• UHF networking
• Hot Standby RTK Algorithms
• Flying RTK Algorithms
• RTK base and rovers modes, post-processing mode
• Moving base
• RTK with Static & Moving Base corrections supported
• Multi-dynamic mode (static/moving Base and Rover functions simultaneously)
• RTK against a moving base for relative positioning
• Heading and Roll/Pitch
• Accurate and fast heading using dual frequency multi-GNSS algorithms
• RTK or Trimble RTX and heading processingsimultaneously
• Heading engine with optional baseline length self-calibration
• Adaptive velocity filter to meet specific dynamic applications
• Up to 50 Hz real-time raw data (code & carrier and position, velocity, and heading output) ⁴
• Reference Inputs/Outputs: RTCM 3.2 ⁵, RTCM 3.1/3.0/2.3/2.1, CMR/CMR+ ⁶, ATOM ⁷
• RTK Networks Supported: VRS, FKP, MAC
• NTRIP protocol
• Navigation Outputs: NMEA-0183, ATOM
• PPS output
• Event marker input
• One-push Ashtech Trouble Log (ATL)

GNSS SENSOR PERFORMANCE

• Time to First Fix (TTFF):
• Cold start: < 60 seconds
• Warm Start: < 45 seconds
• Hot Start: < 11 seconds
• Signal re-acquisition: < 2 seconds
• Position accuracy (HRMS), SBAS: < 50 cm (1.64 ft) ⁸
• Update rate: Up to 50 Hz ⁴
• Latency: < 10 ms ⁹
• Velocity Accuracy: 0.02 m/sec HRMS
• Maximum Operating Limits ¹⁰:
• Velocity: 515 m/sec
• Altitude: 18,000 m

PRECISE POSITIONING PERFORMANCE

Real-Time Accuracy (RMS) ^{11, 12}

• Real-Time DGPS Position:
• Horizontal: 25 cm (0.82 ft) + 1 ppm
• Vertical: 50 cm (1.64 ft) + 1 ppm
• Real-Time Kinematic Position (RTK):
• Horizontal: 8 mm (0.026 ft) + 1 ppm
• Vertical: 15 mm (0.049 ft) + 1 ppm
• Network RTK ¹³:
• Horizontal: 8 mm (0.026 ft) + 0.5 ppm
• Vertical: 15 mm (0.049 ft) + 0.5 ppm

Trimble RTX™ (satellite and cellular/Internet (IP)) ^{14, 15}

• CenterPoint® RTX
• Horizontal (RMS): < 4 cm
• Initialization: < 30 min. (typical)
• Operating range (inland): Nearly worldwide
• CenterPoint RTX Fast
• Horizontal (RMS): < 4 cm
• Initialization: < 5 min. (typical)
• Operating range (inland): In select regions

Heading ^{16, 17, 18}

• Accuracy (RMS):
• 0.09° @ 2 m of baseline length
• 0.02° @ 10 m of baseline length
• Initialization time: < 10 sec typical
• Baseline length: < 100 m

Flying RTK

• 5 cm (0.165 ft) + 1 ppm (steady state) horizontal for baselines up to 1000 km

Real-Time Performance ^{11, 12}

• Instant-RTK® Initialization:
• Typically 2-second initialization for baselines < 20 km
• Up to 99.9% reliability
• RTK initialization range:
• > 40 km

Post-Processing Accuracy (RMS) ^{11, 12}

• Static, Rapid Static:
• Horizontal: 3 mm (0.009 ft) + 0.5 ppm
• Vertical: 5 mm (0.016 ft) + 0.5 ppm
• High-Precision Static ¹⁹:
• Horizontal: 3 mm (0.009 ft) + 0.1 ppm
• Vertical: 3.5 mm (0.011 ft) + 0.4 ppm
• Post-Processed Kinematic:
• Horizontal: 8 mm (0.026 ft) + 0.5 ppm
• Vertical: 20 mm (0.065 ft) + 1.0 ppm

Data Logging Characteristics

• Recording Interval: 0.02 20 - 999 seconds

Memory

• 8 GB internal memory
• Memory is expandable through external USB sticks or hard drives
• Over four years of 15 sec. raw GNSS data from 14 satellites (logged to internal 8 GB Nand Flash)

Embedded Web Server

• Password-protected Web Server
• Full receiver monitoring and configuration
• FTP push function
• Embedded FTP server and NTRIP caster ²¹
• NTRIP Server and instant real-time multi-data streaming over Ethernet
• DHCP or manual configuration (static IP address)
• DynDNS® technology support

USER AND I/O INTERFACE

• User Interface
• Graphical OLED display with 6 keys and 1 LED
• WEB UI (accessible via WiFi) for easy configuration, operation, status and data transfer
• I/O Interface:
• 1 x USB OTG
• Bluetooth v4.0 + EDR/LE, Bluetooth v2.1 + EDR
• WiFi (802.11 b/g/n)
• 3.5G quad-band GSM (850/900/1800/1900 MHz) / penta-band UMTS module (800/850/900/1900/2100 MHz)
• 1 x Ethernet, RJ45 (Full-Duplex, auto-negotiate 10 Base-TX / 100 Base-TX)
• 1 x Lemo, RS232 (radio connection and external power)
• 1 x DB9, RS232 (PPS output and CAN bus)
• 1 x DB9, RS422/232 (Event marker input)
• 2 x TNC, GNSS antenna input
• 1 x TNC, UHF radio antenna connector
• 1 x SMA, GSM antenna connector
• 1 x SMA, Bluetooth/WiFi antenna
• PPS output
• Event marker input
• Galvanic Insulation (Except USB)
• Ready for CAN bus (NMEA2000 compatible)

PHYSICAL AND ELECTRICAL CHARACTERISTICS

• Size: 16.5 x 20.6 x 6.5 cm (6.5 x 8.1 x 2.6 in)
• Weight: GNSS receiver: 1.66 kg (3.66 lb) without UHF / 1.70 kg (3.75 lb) with UHF
• Battery life:
• 4 hrs (RTK Base, GNSS On, UHF Tx On), 12.8 W average power consumption
• 6 hrs (RTK Rover, GNSS On, UHF Rx On), 5.9 W average power consumption
• Li-ion battery, 27.8 Wh (7.4 V x 3.7 Ah). Acts as a UPS in case of a power source outage
• 9-36 V DC input (EN2282, ISO7637-2)
• External DC power limits feature

ENVIRONMENTAL CHARACTERISTICS

• Operating temperature ²²: -40° to +65°C ²³ (-40° to +149°F)
• Storage temperature ²⁴: -40° to +95°C (-40° to +203°F)
• Humidity: Damp heat 100% humidity, +40°C (+104°F), IEC 60945:2002
• IP67 (waterproof and dustproof), IEC 60529
• Drop: 1m drop on concrete
• Shock: MIL STD 810F (fig. 516.5-10) (01/2000), Sawtooth (40g / 11ms)
• Vibration: MIL-STD 810F (fig. 514.5C-17) (01/2000)

1. Product is designed to fully support GLONASS L1/L2 CDMA and BeiDou B3 signals as soon as the officially published signal Interface Control Documentations (ICD) become available.
2. Dual-frequency tracking only from secondary GNSS antenna input.
3. All available GNSS signals are processed equally and combined without preference to any particular constellation for optimal performance in harsh
   environments.
4. 50 Hz output is available as firmware option (20 Hz output is a standard feature). At 50 Hz, a limited set of messages can be generated simultaneously through a single port.
5. RTCM-3.2 Multiple Signal Messaging (MSM) guarantees compatibility with 3rd party for each GNSS data.
6. A Trimble proprietary format.
7. ATOM: Open Ashtech format.
8. VRMS for Autonomous/SBAS positions are usually twice as high as HRMS.
9. Heading latency is usually twice as high.
10. As required by the U.S. Department of Commerce to comply with export licensing restrictions.
11. Accuracy and TTFF specifications may be affected by atmospheric conditions, signal multipath and satellite geometry.
12. Performance values assume minimum of five satellites, following the procedures recommended in the user guide. High multipath areas, high PDOP values and periods of severe atmospheric conditions may degrade performance.
13. Network RTK PPM values are referenced to the closest physical base station.
14. Requires L1/L2 GPS+GLONASS at a minimum.
15. Accuracy and TTFF specifications may be affected by atmospheric conditions, signal multipath, satellite geometry and L-band service availability. Trimble RTX correction services are only available on land.
16. Accuracy and TTFF specifications may be affected by atmospheric conditions, signal multipath, satellite geometry and corrections availability
    and quality.
17. L1/L2 data required.
18. Figures of pitch accuracy are twice as high.
19. Depending on baselines, precise ephemeris and long occupations up to 24 hrs may be required to achieve the high precision static specifications.
20. A Recording Interval of 0.05 is based on a 20 HZ output. The default changes to 0.02 if the optional 50 Hz output firmware option is installed.
21. Embedded NTRIP Caster is available as firmware option.
22. Function of the configuration is:
23. Charging mode with internal battery at +45°C (+113°F) max.
    
    • Discharge mode with internal battery at +60°C (+140°F)
    • Without internal battery (external power supply) at +65°C (+149°F) under conditions of installation.
    • At very high temperature, the UHF module should not be used in transmitter mode. With the UHF transmitter on radiating 2W of RF power, the operating temperature is limited to + 55°C (+131°F).
24. At this temperature, hand protection may be needed to safely handle the system’s lower aluminum housing (as per EN60945).
25. Without battery. Battery can be stored up to +70°C (+158°F).

NOTE: All performance values are given assuming a minimum of five satellites are used, and following the procedures recommended in the user guide. High multipath areas, high PDOP values and periods of severe atmospheric conditions may degrade performance.