Transas T-701

GPS / GLONASS Transas T-701 is a receiver indicator designed for marine and river vessels. It is designed for round-the-clock and all-weather determination of navigation parameters and time based on signals from GLONASS satellite navigation systems, GPS and SBAS correction systems (WAAS, EGNOS, MSAS).

The main functions of the device:

• reception and processing of SNS GLONASS (CT code) and GPS (C/A code) signals in the L1 frequency range;
• reception and accounting of DGPS and DGLONASS corrective information in accordance with the recommendations of RTCM SC-104 V2.2;
• determining the location, speed and course of the vessel relative to the ground;
• provision of current coordinates in the coordinate system selected by the user for display and external consumers;
• reception, storage and updating of the SNA GLONASS and GPS almanacs, as well as SBAS;
• assessment and display of the accuracy of determining the location of the vessel.

Technical specifications of Transas T-701:

• GLONASS frequency range: 1592-1610 MHz;
• GPS frequency range: 1575.42MHz;
• PKI frequency range: 283.5–325.0 kHz;
• GLONASS reception code: CT (L1);
• GPS reception code: C/A (L1);
• number of GNSS channels: 24 (universal GLONASS/GPS/SBAS);
• number of PKI channels: 2 (parallel tracking);
• Data refresh rate: 1 second;
• GNSS cold start: 90 s;
• cold start of PKI: 60 s (typical value);
• warm start of GNSS: 50 s;
• GNSS hot start: 10 s;
• PKI hot start: 2 s (typical value);
• sensitivity: no worse than 155 dB/m;
• Accuracy characteristics:
• accuracy of GPS/GLONASS coordinates determination: 9 m (typical value is 5 m),
• GNSS + SBAS: 3 m,
• DGPS/DGLONASS: 2 m;
• GPS/GLONASS altitude accuracy: 12 m (typical value 8 m),
• GNSS + SBAS: 5 m,
• DGPS/DGLONASS: 3 m;
• Course orientation angles: 0.2 per 1 m base;
• Time detection accuracy: 100 ns;
• Speed detection accuracy: 0.5 m/s.