GPS Bluetooth
GPS Mouse
Navigator
Personal Tracker
GPS Engine Board
Other

GM725 Product Features

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  • 20¡Vchannel GPS receiver for fast acquisition and reacquisition
  • Full navigation accuracy provided by Standard Positioning Service (SPS)
  • Support standard NMEA 0183 protocol (Version. 3.0 GGA, GSA, GSV, RMC, VTG
  • Internal RTC (Real Time Clock)
  • SBAS (WAAS, EGNOS Euro Geostationary Navigation Overlay Service) support
  • User selectable baud rates allow the design with maximum interface capability and flexibility
  • Water resistant ¡VIPX5
  • ROHS compliant


Driver / Manual / Specification

Performance

Receiver

 20 parallel channels
Frequency L1, 1575.42 MHz C/A code
Acquisition Time (Open Sky and Stationary) Re-acquisition Average 0.1 seconds
Hot Start Average < 1 seconds (typical TTFF 95%)
Warm Start Average < 38 seconds (typical TTFF 95%)
Cold Start Average < 42 seconds (typical TTFF 95%)
Accuracy Position 2 DM RMS : aprox. 10m
Sensitivity Acquisition -149 dBm (average) in normal mode
Sensitivity mode -159 dBm (average) in high sens. Mode
Tracking -159 dBm (average)
Dynamics Altitude Max. 18000 meter
Velocity Max. 515 m/sec
Acceleration ¡Ó 4g

Power & Interface characteristics

Power supply

+ 5. 0 V DC Connector PS2 male connector
Baud rate 4.8K (def) ~ 57.6k bps Antenna Bulit in patch antenna
I/O Protocol NMEA 0183 ¡@ ¡@

Physical characteristics

Dimensions

55(L) X 37 (W) X 16.5 (H) mm
Cable length 2 meters

Environment conditions

Operating temperature

-20¢XC ~ +60¢XC
Storage temperature -20¢XC ~ +70¢XC
Operating humidity 5% ~ 95% RH, non condensing

Availability

¡EFor OEM/ ODM or Navibe Brand Reseller
¡EDelivery FOB HongKong
¡E2 years warranty


Hardware Interface

GM 725 includes the PS2 female connector with user selectable baud rate which allows you to link with your notebook PC, car phone, or other devices.


Pin Assignment

PIN Signal
1 RX (TTL) ¡V GPS input
2 RX (RS-232) ¡V GPS input
3 Ground
4 TX (RS-232) ¡V GPS output (NMEA)
5 TX (TTL) ¡V GPS output (NMEA)
6 +5 VDC


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