et-301-swsa.s（16页）.doc

環天衛星科技股份有限公司 PRODUCT USER MANUAL GPS RECEIVER ENGINE BOARD EM-411 GlobalSat Technology Corporation 台北縣中和市建一路186號16樓(遠東世紀廣場) 16, No.186,Chien 1 Road, 235Chung Ho City,Taipei Hsien, Taiwan ,R.O.C. Tel: 886-2-8226-3799(Rep.) Fax: 886-2-8226-3899 Web: .tw E-mail:service@.tw Features: SiRF starⅢ high performance GPS Chip Set Very high sensitivity (Tracking Sensitivity: -159 dBm) Extremely fast TTFF (Time To First Fix) at low signal level Support NMEA 0183 data protocol Built-in SuperCap to reserve system data for rapid satellite acquisition Built-in patch antenna 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℃ Pin Assignment Pin description * VIN (DC power input): This is the main DC supply for a 4.5V ~6.5 DC input power. * TX: This is the main transmits channel for outputting navigation and measurement data