EM-411 gprs gps modem

An OEM Module with SiRF Start III chipset and a built-in Antenna
1. SiRF starⅢ high performance GPS Chip Set
2. Very high sensitivity (Tracking Sensitivity: -159 dBm)
3. Extremely fast TTFF (Time To First Fix) at low signal level
4. Support NMEA 0183 data protocol
5. Built-in SuperCap to reserve system data for rapid satellite acquisition
6. Built-in patch antenna
7. LED indicator for GPS fix or not fix
-LED OFF: Receiver switch off
-LED ON:No fixed, Signal searching
-LED Flashing:Position Fixed

Specification
General
Chipset: SiRF StarⅢ
Frequency: L1, 1575.42 MHz
C/A code: 1.023 MHz chip rate
Channels: 20 channel all-in-view tracking
Sensitivity: -159 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 : 1 sec., average
Warm start: 38 sec., average
Cold start: 42 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: 4.5V ~ 6.5V DC input
Power consumption: 60mA

Protocol
Electrical level: TTL level, Output voltage level: 0V ~ 2.85V , RS-232 level
Baud rate: 4, 800 bps
Output message: NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL

Physical Characteristics
Dimension: 30mm*30mm*10.5mm ±0.3mm
Operating temperature: -40℃ to +85℃

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