USGlobalsat ET-312 - Manual (Page 3)

ET-312
The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology.
Page 3 of 21
Version 1.4
Channels 20
Flash 4Mbit
Sensitivity Tracking:-159dBm
Cold Start
42 seconds, average
Warm Start 38 seconds, average
Hot Start 1 second, average
Reacquisition 0.1 second, average
Accuracy Position: 10 meters, 2D RMS
5 meters, 2D RMS, WAAS enabled
Velocity: 0.1 m/s
Time: 1us synchronized to GPS time
Maximum Altitude ＜ 18,000 meter
Maximum Velocity ＜ 515 meter/second
Maximum Acceleration ＜ 4G
Update Rate 1 Hz
DGPS WAAS, EGNOS, MSAS
Datum WGS-84
Interface
I/O Pins 1 serial ports
Physical Characteristic
Type 13-pin stamp holes
Dimensions 28 mm * 20 mm * 2.9 mm
DC Characteristics
Power Supply 3.3Vdc ± 5%
Backup Voltage 2.0 ~ 3.6Vdc ± 10%
Power Consumption Acquisition: 60mA
Tracking: 42mA
Environmental Range
Humidity Range 5% to 95% non-condensing
Operation Temperature -30℃ to 85℃
Storage Temperature -40℃ to 85℃