The state-of-the-art 66 channels MediaTek MT3329 GPS Engine High sensitivity: Up to -165dBm tracking, superior urban performance USB/UART Interface Build-in patch antenna for optimal sensitivity DGPS(WAAS, EGNOS, MSAS) support (optional by firmware) Maximum update rate : up to 10Hz (optional by firmware) RoHS compliant Note that the new MediaTek has custom and exclusive "DIYDrones" firmware that allows the unit to output an efficient and very compressed binary protocol. You can still change between NMEA and Binary protocol with standard MTK messages, and switch the refresh rate between 1hz to 10hz, or set any standard serial baud rate (by default is set to 38400 bps and custom binary protocol). Arduino example for decoding the custom binary protocol is provided. Remember to install the library folder "GPS_MTK" inside the Arduino IDE "libraries" folder "arduino-00XXlibraries\". The library and the source code is located in the same ZIP file, click here to download. Features: -Based on MediaTek Single Chip Architecture. -Dimension：16mm x 16mm x 6mm -L1 Frequency, C/A code, 66 channels -High Sensitivity：Up to -165dBm tracking, superior urban performances -Position Accuracy：< 3m CEP (50%) without SA (horizontal) -Cold Start is under 35 seconds (Typical) -Warm Start is under 34 seconds (Typical) -Hot Start is under 1 second (Typical) -Low Power Consumption：48mA @ acquisition, 37mA @ tracking -Low shut-down current consumption：15uA, typical -DGPS(WAAS, EGNOS, MSAS) support (optional by firmware) -USB/UART Interface -Support AGPS function ( Offline mode : EPO valid up to 14 days ) -Includes a molex cable adapter, 5 cm!! (EM-406/uBlox Adapter cable) -Includes the new basic adapter!! (Mediatek Adapter Basic) -Weight: 0.3oz; 8 g Resources: -DataSheet：https://docs.google.com/fileview?id=0B_dHj7E2weiiNmUzNDA3OTktNTNhNy00Y2Y5LTg0YTQtMzIyNzJhZmFiNjcy&hl=en -Custom Binary Protocol Manual:http://docs.google.com/Doc?docid=0ASI4WbhJsiyqZDk3MndtYl8yN2R2ajVmOGdy&hl=en
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