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DGNSS reference station

GNSS reference station - is designed for the continuous forming of differential corrections to the pseudorange, which are measured for satellites GLONASS, GPS, GALILEO. Correction information is formed and transmitted by beacon and/or by a channel communications (VHF, AIS, Ethernet) for satellites above the specified elevation.

DGNSS reference station

DGNSS reference station

Functions and features

  • Receive signals from satellites:
    • GLONASS frequency band L1 (CT-code, numbers lettered frequencies from minus 7 to plus 6);
    • GLONASS frequency band L2 (CT-code, numbers lettered frequencies from minus 7 to plus 6);
    • GLONASS frequency band L3;
    • GPS in the frequency range of L1 (C / A code);
    • GPS in the frequency range of L2;
    • GPS in the frequency range of L5;
    • GALILEO E1 in the frequency range;
    • GALILEO in the frequency range E5b;
    • SBAS in the frequency band L1.
  • Measurement pseudorange all of the received signals of GLONASS / GPS / GALILEO, synchronization of timing measurements to scale the system GLONASS / GPS;
  • Calculation of the differential corrections and the formation of correction information for navigation signals:
    • for ST-code satellites GLONASS;
    • for C/A-code satellites GPS;
    • for the signals E1 and E5b satellites GALILEO (optional) - in real time and in accordance with OST 31.6.60-01 (RTCM SC-104 version 2.3, 3.1). Calculation of the differential correction is made for all satellites GLONASS, GPS, GALILEO which are above the specified angle of elevation.
  • Reception, storage and updating of almanacs satellites
  • Autonomous Integrity Monitoring (RAIM) with the functions:
    • detection of failure measurements;
    • avoid of failure measurement.
  • Communicate with external users via the RS-232 in accordance with the communications protocol NMEA0183 (IEC1162), RTCM SC-104, RSIM 1.1. (including delivery of data for documentation and archiving).
  • Framing KI:
    • message types 1, 3, 5, 6, 7, 9, 16, 18, 19, 31, 32, 33, 34, 35, 36, 37 in accordance with the standard RTCM 10402.3 - Amendment 1;
    • message types 1001,1002,1005-1010, 1013, 1019, 1020, in accordance with standard RTCM 10403.1 - Amendment 1-4.
  • Converting frame of differential corrections into MSK-modulated signal and transmitting it by the coaxial line to the transmitter beacon.
  • Inclusion in the RTCM-messages types 1, 31 and / or 9, 34 at unsatisfactory mode of the reference station if a warning is received from the station of integral control
  • Automatic monitoring of the functioning of the reference station.
  • Determination of the origin of the phase center of the antenna on a series of observations.

Specifications and operating conditions

Parameter Value
 The number of parallel channels of the receiving of the satellites  GPS/GLONASS/SBAS/GALILEO 24/60
 Coordinate systems ПЗ-90.02, WGS-84
 Temp of fix, Hz 1-20
 Accuracy:
         - RMC of pseudorange, m
         - RMC of velocity, m/s
0,3
0,04
 Display type LCD, 2 lines of 16 symbols
 Frequency range of MSK-modulator, kHz from 283,5 to 325,0
 Frequency setting resolution MSK modulator, kHz 0,5
 Information rate, bit/s 50, 100, 200
 The number of external serial port RS-232 6
 Number of channels of Ethernet 3
 Protocols of the Ethernet data RTCM2.3, RTCM3.1, BINR
 Setup and control via WEB-interface able   
 Supply DC, V from 9 to 27
 Power no more, Wt 11
 Dimension, mm*mm*mm 252*60*111
 Operation temperature, °С from 0 to +50
 Storage temperature, °С from –50 to +70
 Operation humidity at temperature 25 °С, % 98