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9F., No.70, Sec. 2, Roosevelt Rd., Taipei City 100, Taiwan (R.O.C.)






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GPS Receivers

HI-204III RJ11

Ultra High Sensitive
RJ11 GPS receiver


HI-204III-RJ11 is a GPS receiver with RJ11 interfaces and built-in active antenna for high sensitivity to tracking signal. It satisfies a wide variety of applications for car navigation, personal navigation or touring devices, tracking and marine navigation purpose.

Standard Package :

Before you start up, make sure that your package includes the following items. If any items are missing or damaged, contact your dealer immediately.
  • HI-204III-RJ11 GPS Receiver unit
  • Suction CUP
  • User Manual CD (including User Manual, HaiTest Testing Program)


Fast Acquisition Enhanced Sensitivity 20 Channels “All-In-View” Tracking GPS Sensor Module.

The receiver continuously tracks all satellites in view and provides accurate satellite positioning data. The HI-204III-RJ11 is optimized for applications requiring good performance, low cost, and maximum flexibility; suitable for a wide range of OEM configurations including handhelds, sensors, asset tracking, PDA-centric personal navigation system, and vehicle navigation products.

It's 20 parallel channels and 4000 search bins provide fast satellite signal acquisition and short startup time. Tracking sensitivity of -159dBm offers good navigation performance even in urban canyons having limited sky view.

Satellite-based augmentation systems, such as WAAS and EGNOS, are supported to yield improved accuracy.


  • 20 parallel channel GPS receiver
  • 4000 simultaneous time-frequency search bins
  • SBAS (WAAS, EGNOS) support
  • -159dBm tracking sensitivity
  • < 8 second hot start
  • < 40 second cold start

Technical Specifications: Electrical Characteristics

  Items Description
Chipset GSP3F SSiRF Star IV technology
General Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 20
Accuracy Position 10 meters, 2D RMS
5 meters 2D RMS, WAAS corrected
<5meters(50%), DGPS corrected
Velocity 0.1 meters/second
Time 1 microsecond synchronized to GPS time
Datum Default WGS-84
Other selectable for other Datum
Rate (Open Sky
& Stationary
Reacquisition 0.1 sec., average
Snap start 1 sec., average
Hot start 8 sec., average
Warm start 38 sec., average
Cold start 42 sec., average
Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/second (1000 knots) max.
Acceleration 4g, max.
Jerk 20 meters/second3, max.
Power Main power input 5V DC input.
Power consumption 0.38 W (continuous mode)
Supply Current 75mA
Backup power 3 V Lithium-Ion rechargeable battery
Dimension 43mm L x 42mm W x 13mm H
Weight 23g

LED Indicator

LED flashing 0.25Hz Signal Searching
LED flashing 1Hz Position Fixed