Shenzhen Shanhai Technology Ltd.
Shenzhen Shanhai Technology Ltd. Professional GSM GPRS modem and module GPS module manufacture. We supply high quality products, competitive price, and 5 star customer service
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ET-285 gsm module Engine Board
Compact size (25.4mm * 25.4 mm * 7mm) suitable for space-sensitive application
Feature
1. SiRF GSC2x high performance GPS Chip Set
2. Very high sensitivity (Tracking Sensitivity: -155 dBm)
3. Extremely fast TTFF (Time To First Fix) at low signal level
4. Compact size (25.4mm * 25.4 mm * 7mm) suitable for space-sensitive application
5. One size component, easy to mount on another PCB board
6. Support NMEA 0183 and SiRF binary protocol
7. (Option) Build-in SuperCap to reserve system data for rapid satellite acquisition
Specification
General
Chipset: SiRF GSC2x
Frequency: L1, 1575.42 MHz
C/A code: 1.023 MHz chip rate
Channels: 12 channel all-in-view tracking
Sensitivity: -155 dBm
Accuracy
Position: 10 meters, 2D RMS
5 meters, 2D RMS, WAAS enabled
Velocity: 0.1 m/s
Time: 1us synchronized to GPS time
Datum
Default: WGS-84
Acquisition Time
Reacquisition: 0.1 sec., average
Hot start: 8 sec., average
Warm start: 38 sec., average
Cold start: 45 sec., average
Dynamic Conditions
Altitude: 18, 000 meters (60, 000 feet) max
Velocity: 515 meters /second (1000 knots) max
Acceleration: Less than 4g
Jerk: 20m/sec **3
Power
Main power input: 3.3V +- 5% DC input
Power consumption:
Continuous mode: 41mA typical
Trickle power mode: 29mA typical
Interface
Dimension: 25.4mm * 25.4mm * 7mm
Baud rate: 4, 800 to 57, 600 bps adjustable
Output message: SiRF binary or
NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL
GPS Antenna Specification (Recommendation)
Frequency: 1575.42+2 MHz
Axial Ratio: 3 dB Typical
output Impedance: 50Ω
Polarization: RHCP
Amplifier Gain :20~26dB Typical
Output VSWR: 2.0 Max.
Noise Figure: 2.0 dB Max.
Environmental
Operating Temp: -40℃ to +85℃