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 GPS( Global Positioning System) is a Satellite Navigation System. GPS provides specially code satellite signals that can be processed in a GPS receiver, enabling the receiver to compute position, velocity, and time. GPS receiver is used for navigation, positioning, time dissemination and other research. Navigation in three dimensions is the primary function of GPS. Navigation receiver is made for aircraft, ships, ground vehicles and hand carrying by individuals. The GPS Receiver is designed to plug into most any laptop PC's USB port without the need of an additional source for power! Because power and data are both transmitted through a single cable connected to the USB port! The GPS Receiver uses NMEA protocol, which makes it compatible with most of the mapping software available on the market today including the Precision Mapping Traveler v5.0 Inside the GPs receiver, it utilizes the SIRF Star-II chipset, to provide multidirectional, 12-parallel channel support. Satellite tracking can be accomplished with very low signal strength by means of the high sensitivity circuitry design. The GPS Receiver is a combination of a GPS receiver, an embedded GPS antenna with a USB interface, which that makes the GPS a truly unique product.


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FEATURES:

• SiRF Star-II high performance and low power consumption chipset
• WAAS enabled engine board for greater accuracy
• All-in-view 12-channel parallel processing
• Built-in active antenna
• High sensitivity to satellite signal
• Cold start under 45 seconds, average
• Superior urban canyon performance
• FoliageLock for weak signal tracking
• Build-in SuperCap to reserve system data for rapid satellite acquisition.
• Supported NMEA 0183 command: GGA, GSA, GSV, RMC, GLL, VTG
• Super-cohesive magnetic for mounting on the car
• Non-slip on the bottom
• USB interface connection port
• LED indicator for GPS fix:
  LED OFF: GPS receiver is off
  LED FLASHING: No fix, searching for GPS signal
  LED ON: Position fixed, GPS receiving signal
SPECIFICATIONS:
Electrical Characteristics (Receiver)
Frequency L1, 1575.42 MHz
C/A Code 1.023 MHz chip rate
Channels 12
Sensitivity -170 dBW
Accuracy
Position Horizontal 15m 2D RMS (SA off)
Velocity 0.1m/sec 95% (SA off),
Time 1 micro-second synchronized to GPS time
WAAS 10m 2D RMS
Datum
Datum WGS-84
Acquisition Rate
Hot start 8 sec., average (with ephemeris and almanac valid)
Warm start 38 sec., average (with almanac but not ephemeris)
Cold start 45 sec., average (neither almanac nor ephemeris)
Reacquisition 0.1 sec. average (interruption recovery time)
Protocol
GPS Protocol Default: NMEA 0183 (Secondary: SiRF binary)
GPS Output Data SiRF binary >> position, velocity, altitude, status and control, NMEA0183 V2.2 protocol, and supports command: GGA, GSA, GSV, RMC, VTG, GLL (VTG and GLL are optional)
GPS transfer rate Software command setting (Default : 4800,n,8,1 for NMEA )
Dynamic Condition
Acceleration Limit Less than 4g
Altitude Limit 18,000 meters (60,000 feet) max.
Velocity Limit 515 meters/sec. (1,000 knots) max.
Jerk Limit 20 m/sec**3
Temperature
Operating -30°~ 80°C
Storage -40°~ 85°C
Humidity Up to 95% non-condensing
Power
Voltage 5V ±5%
Current 90mA typical
Physical Characteristics
Dimension 2.32" x 1.85" x 0.82" (59mm x 47mm x 21mm)
USB Cable Length 65"
Low Noise Amp
Amplifier Gain w/out cable 27 dB Typical
Filtering -25dB (+100 MHz)
Output VSWR 2.0 Max.
Voltage DC 3 ~ 5.0V
Current 15mA max. @5VDC
Operating System
Operating System Windows' 98 / ME / 2000 / XP
DOWNLOADS:
GPS Driver for Windows' 98 / ME / 2000 / XP
GPS User Guide

 
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