GeoSIG GMS-GPS

Key Features

  • Concurrent reception of up to 3 GNSS (GPS, Galileo, GLONASS, BeiDou)
  • Supports all satellite augmentation systems and Assisted GNSS (A-GNSS)
  • 30 nanosecond time accuracy (RMS)
  • < 2.5 m position accuracy GPS
  • < 1 second re-acquisition 
    5 seconds warm acquisition 
    45 seconds cold acquisition 
  • RS232 or optionally RS485 communication
  • Built-in antenna or external antenna
  • Rugged, water resistant housing 
     
The GMS-GPS is a state of the art GPS receiver module which employs U-BLOX NEO-M8N that is a complete GPS receiver and embedded antenna designed for a broad spectrum of system application.

The NEO-M8 module is concurrent GNSS receiver, which can receive and track multiple GNSS systems: GPS, Galileo, GLONASS and BeiDou. Its far-reaching capability meets the sensitivity requirements of seismic applications and low power consumption.

The NEO-M8N design utilises the latest technology and high level circuit integration to achieve superior performance while minimising space and power requirements.

The GMS-GPS is housed in a water-resistant case and is designed to withstand rugged operating conditions. The host system may communicate with the GMS-GPS via a dedicated, compatible, bi-directional communication channel. Internal memory backup allows the GMS-GPS to retain critical data such as satellite orbital parameters, last position, date, and time.
  • General Characteristics

  • Reciever:
  • Differential ready 12 parallel channel receiver tracks and uses up to twelve satellites to compute and update
  • Supported GNSS:
  • GPS, Galileo, GLONASS and BeiDou
  • Cable:
  • 20M standard, up to 70M possible with RS232. Or up to 300 m with RS485 option.
  • Antenna:
  • Built in (or optionally external)


  • Cable Specifications

  • Conductor:
  • 5 X 0.25 for RS232, or 4 x 2 x 0.25 for RS485
  • Conductor Marking:
  • DIN 47100
  • Outer Jacket
  • PVC UL Style, Grey
  • Temperature range:
  • -30°C to 80°C
  • Minimum Bending radius:
  • 10 X cable
  • Diameter:
  • 5.1 mm




  • Acquisition Times

  • Update Rate:
  • 1 sec, continuous
  • Acquisition*:
  • < 1 sec; re-acquisition
    2 sec; warm (all data known)
    45 sec; cold (position, time and almanac known)
  • Interfaces
  • RS232 or RS485 compatible
  • Protocol
  • NMEA 0183, version 4.0




  • Accuracy

  • Time:
  • 30 nanosecond RMS, (60ns within 99% pulses)
  • position

  • Differential GPS (DGPS):
  • < 3 m
  • Non-differential GPS:
  • < 15 m,
    Subject to accuracy degradation to 100 m 2DRMS under the Selective Availability Program.

  • PPower

  • Input Voltage:
  • 4.5 - 15 VDC, typically 65 mA @ 12 VDC. All signals have overvoltage and overcurrent protections.
  • Environment/housing

  • Size:
  • 82 mm x 162 mm x 55 mm
  • Weight:
  • 200 g, not including cable
  • Operating Temperature:
  • -30°C to +80°C (internal temperature)
  • Storage Temperature:
  • -40°C to +80°C
  • Index Of Protection:
  • IP 65
  • **Specifications subject to change without notice