(制造)高绩效GPS模块的天线

GPS moduleantennawith Low Price, High Performance, International Approvals, Prompt Delivery, Small Orders Accepted. 1.Physical Characteristics: 1) Active Size: 18.0(W) x 21.0(D) x 7.0(H) (mm) 2) Weight: less than 10g 2.Chipset:SiRF star III 3.General: 1).Frequency:L1, 1575.42 MHz. 2).C/A code:1.023 MHz chip rate. 3).Channels:20 4.Accuracy (Open Sky): 1).Position:10 meters, 2D RMS. 2).7 meters 2D RMS, WAAS corrected. 3).1-5 meters, DGPS corrected. 4).Time 1 microsecond synchronized to GPS time. 5.Datum:Default:WGS-84. 6.Acquisition Rate (Open sky, stationary requirements): 1).Reacquisition:0.1 sec., average. 2).Hot start:1 sec., average. 3).Warm start:38 sec., average. 4).Cold start:48 sec., average. 7.Dynamic Conditions: 1).Altitude : 18,000 meters (<60,000 feet) Max 2).Velocity:515 m/s (<1,000 knots) Max 3).Acceleration:4G, Max 8.Power: 1).Input power input:3.3V DC for main power and RTC power 2).Input current: Less than 35mA (without antenna) 3).RTC current: Less than 10uA 9.RF interface:Minimum signal tracked: -159dBm 10.Serial Port: 1).Two full duplex serial communication, TTL interface, with user selectable baud rate (4800,9600,19200,38400,57600)-Usercustomized 2).NMEA 0183 Version 3.0 ASCII output (GGA, GSA, GSV, RMC (VTG ,GLL and ZDA for optional)) 3).SiRF binary:position, velocity, altitude, status output 11.TIMEMARK-1PPS Pulse: 1).Level TTL 2).Pulse duration 1us 3).Time reference At the pulse positive edge 4).Measurements Aligned to GPS second, ±1 microsecond 12.Environmental Characteristics: 1). Operating temperature range -40 to +85 2). Storage temperature range -45 to +85 Electrical specification can be customized.