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    With a miniature form factor, the GT-321R-RS232 module manifests EverMore’s latest 12-channel GPS technology.

    The GT-321R-RS232 GPS receiver is designed for rapid startup time and high performance in foliage and urban canyon environments. GT-321R-RS232 applies the latest semiconductor technology so as to provide robust performance.

    GT-321R-RS232 provides enhanced position & velocity filtering for smooth navigation, and onboard patch antenna & RS-232 driver for simple interfacing.

    The optional Evaluation Kit makes it easy to evaluate the performance of GT-321R-RS232. The kit consists of GT-321R-RS232 housed in translucent case, a Windows-based evaluation software, and an operation manual.


    • General: L1 (1575.42MHz), C/A code, 12-channel, Carrier-Aided with HWTrackc.
    • Sensitivity: -165 dBW minimum
    • Update Rate: 1Hz
    • Accuracy:
      Position :25m CEP S/A off
      Velocity :0.1/sec S/A off
      BTime :± 1ms
    • Typical Acquisition Time:
      Cold start:< 120sec
      Warm start:< 40 sec
      Hot start:< 10 sec
    • Reacquisition: 100 millisecond
    • Active Antenna:
      >20 dB (100ft)
      >10 dB (10 ft)
    • Passive Antenna: > 2 dBic
    • Dynamics:
      Altitude: -1000m to + 18,000m
      Velocity: 500m/sec
      Acceleration: ±4g
    • Operation Temperature: -40°C to + 85°C
    • Storage Temperature: -55°C to + 100°C
    • Operating Humidity: 5% to 95%
    • Primary Power: 3.8V~8V DC, ±10%
    • Power Consumption:
      125mA @ 3.3V
      70-90mA with power saving
    • Serial Port: Standard RS-232
    • Protocols: NMEA-0183 v2.20@4800/9600 baud, 8N1
    • Datum: 219 standard datum; WGS-84 (default)
    • NMEA Messages: GGA, GSA, GSV, RMC (standard output) GLL and VTG (optional)
    • Dimension: 45 mm x 30 mm x 13 mm w/o housing
    • Weight: 25g w/o housing

    Ordering Informations

    GT-321R-RS232 GPS Receiver