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25BDMT的重量是约14克,内建具备快速定位及追踪33颗卫星的能力,北斗芯片，内置备份电池，内置高增益LNA,，双路LDO，PCB沉金工艺，绝非一般定位器可比。信号更好更稳定。配合可选波特率. 4800,9600,19200,38400,5700,115200等速率和RMC,GSV,GSA,GGA,VTG,GLL等语句,可以自由组合，让您使用本产品更轻松。默认输出为9600标准（如果需要使用其它波特率请备注一下所需波特率，我们为您修改成您想要的4800-38400。）
型号:25BDMT
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GNSS Receiver |
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Frequency |
GPS, GALILEO, QZSS: L1 1575.42MHz, C/A code BEIDOU: B1 1561.098MHz |
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Channels |
Support 99 channels (33 Tracking, 99 Acquisition) |
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Update rate |
1Hz default, up to 10Hz |
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Sensitivity |
Tracking |
-165dBm (with external LNA) |
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Cold start |
-148dBm (with external LNA) |
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Acquisition Time |
Hot start (Open Sky) |
< 1s |
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Cold Start (Open Sky) |
< 33s |
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< 3~8s with AGPS (3-day self-generated ephemeris prediction) < 15s with AGPS (14-day server-generated ephemeris prediction) |
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Position Accuracy |
Autonomous |
3m (2D RMS). |
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SBAS |
2.5m (depends on accuracy of correction data). |
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Max. Altitude |
< 18,000 m, up to 50,000m by request |
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Max. Velocity |
Velocity < 515 m/s |
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Protocol Support |
NMEA 0183 ver 4.10 |
9600 bps(1), 8 data bits, no parity, 1stop bits (default) 1Hz: GGA, GLL, GSA, GSV, RMC, VTG |
PPS指示灯，定位后每秒闪烁一次，方便识别是否定位成功
接口定义：
配线：免费配送一根6pin，1.25MM间距，单头，15cm的线
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