Description
Chipset Characteristics
| General | |
| Chipset | MTK MT3339 |
| Frequency | L1, 1575.42MHz |
| C/A Code | 1.023 MHz |
| Channels | 66 channels |
| SBAS | WAAS, EGNOS, GAGAN,MSAS Supported |
| Datum | WGS84(Default), Tokyo-M, Tokyo-A, User Define |
| CPU | ARM7EJ-S |
Dimensions |
|
| Length/Width/Height | 30 x 34.1 x 8mm |
| Weight | 50 g (with 2m standard cable and housing) |
| Performance Characteristics | |
Position Accuracy |
Without aid：3.0m 2D-RMS |
| < 3m CEP (50%) without SA (horizontal) | |
| DGPS (SBAS (WAAS, EGNOS, MSAS)):2.5m | |
| Velocity Accuracy | Without aid：0.1 m/s |
| DGPS (SBAS (WAAS, EGNOS, MSAS))：0.05m/s | |
| Acceleration Accuracy | Without aid：0.1 m/s² |
| DGPS (SBAS (WAAS, EGNOS, MSAS))：0.05m/s² | |
| Timing Accuracy | 100 ns RMS |
| Sensitivity | Acquisition：-148dBm (Cold Start) |
| Reacquisition：-163dBm | |
| Tracking：-165dBm | |
| Maximum Update Rate | Up to 10Hz(Default: 1Hz) |
| Acquisition (Open sky, stationary) | |
| Reacquisition Time | Less than 1 second |
| Hot start | 1.0s (Typical) |
| Warm start | 34s (Typical) |
| Cold start | 35s (Typical) |
| Dynamic | |
| Altitude | Maximum 18,000m |
| Velocity | Maximum 515m/s |
| Acceleration | Maximum 4G |
| Power | |
| Input Voltage | DC 12V Typical |
| Power Consumption @ 12V | Acquisition：26mA Typical |
| Tracking：22mA Typical | |
| I/O | |
| Signal Output | RS232 |
| Available Baud Rates | 4800/9600/38400/57600/115200 bps(Default：9600) |
| Protocols | NMEA 0183 v3.01 (Default:GGA,GSA,GSV,RMC,VTG) MTK NMEA Command Network Assistance Messages |
| Data output Interface | |
| Protocol messages | 9600 bps/8/N/1 (Default) |
| Output format | GGA(1sec),GSA(1sec),RMC(1sec),VTG(1sec), GSV(5sec) (Default) |
| Environment | |
| Operating Temperature | -45 ℃ to 85 ℃ |
| Storage Temperature | -50 ℃ to 125 ℃ |
| Operating Humidity | 5% to 95% (no condensing) |
