Keterangan :

HOLUX GR-89 is a high performance, low power consumption, small size, very easy integrated GPS engine board designed for a broad spectrum of OEM system applications. This product is based on the proven technology found in other HOLUX 20 channel GPS receivers and SiRF GSC3f chipset solution. The GPS engine board will track up to 12 satellites at a time while providing fast time-to-first-fix and one-second navigation updates. Its far reaching capability meets the sensitivity requirements of car navigation as well as other location-based applications. Therefore, HOLUX GR-89 engine board is very fit to the customers who devote themselves to AVL system integration and location-based service.

The GR-89 design utilizes the latest surface mount technology ( BGA) and high level circuit integration to achieve superior performance while minimizing space and power requirements. This hardware capability combined with software intelligence makes the board easy to be integrated and used in all kinds of navigation applications or products. The application system may communicate with the engine board set via two RS232 compatible bi-directional communication channels with CMOS 3V voltage level.

Features
- SiRF GSC3f chipset with embedded ARM7TDMI CPU available for customized applications in firmware.
- 20-Channel GPS Receiver for fast acquisition and reacquisition.
- Very compact size, only 25.4 x 25.4 x 3 mm.
- 200, 000 effective correlators for fast Time To First Fix ( TTFF) , even at poor satellite signal.
- Built-in WAAS/ EGNOS Demodulator.
- Low power consumption with Advanced Trickle-Power and Push-To-Fix mode.
- Support NMEA-0183 v2.2 data protocol and SiRF binary code.
- Real time navigation for location based services.
- For Car Navigation, Marine Navigation, Fleet Management, AVL and Location-Based Services, Auto Pilot, Personal Navigation or touring devices, Tracking devices/ systems and Mapping devices application

General
- Frequency: L1, 1575.42MHZ
- C/ A Code: 1.023MHZ chip rate
- Channels: 20

TIMEMARK-1PPS Pulse
- Level CMOS 3V
- Pulse duration 1 microsecond.
- Time reference At the pulse positive edge.
- Measurements Aligned to GPS second, 1 microsecond.

Datum
- Default ) WGS-84 .
- Other Support different datum by request.

Physical Characteristics
- Active Size: 25.4( W) x 25.4( D) x 3( H) ( mm)
- Weight: 3g

Environmental Characteristics
- Operating temperature range : -20  to + 70 
- Storage temperature range: -40  to + 85 

Power :
- input power 3.3V - 5.5VDC
- Input current: Less than 65 mA ( without antenna)

Position Accuracy
- Accuracy ( Open Sky)
- Position: 10 meters, 2D RMS .
- 7 meters 2D RMS, WAAS corrected .
- 1-5 meters, DGPS corrected .
- Altitude : < 35m Vertical in term of 95% .
- Velocity : 0.1 meters/ second .
- Time 1 microsecond synchronized to GPS time

Acquisition Time
- Acquisition Rate ( Open sky, stationary requirements)
- Hot start: 1 sec., average.
- Warm start: 38 sec., average
- Cold start: 42 sec., average.

Interface
- RF signal input to RFIN pin from external antenna. DC supply from VCC_ANT_IN ( pin 19) .
- If 2.85 V is used, VC_ANT_IN can be connected with VCC_RF_O ( pin 20) .
- Minimum signal tracking: -159 dBm.
- Two full duplex serial communication, CMOS 3V interface, with user selectable baud rate ( 4800-Default, 9600, 19200, 38400) .
- NMEA 0183 Version 2.2 ASCII output ( GGA, GSA, GSV, RMC ( VTG , GLL and ZDA for optional) ) .
- SiRF binary-position, velocity, altitude, status output.

datasheet:
http: / / www.holux.com/ JCore/ UploadFile/ 673170.pdf