GPS Protocol and Standards

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GPS protocol covers two main parts

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1. GPS receivers talk to computers 2. GPS receivers exchange DGPS data

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NMEA stands for

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National Marine Electronics Association

Front

NMEA data is generated by

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Just about every GPS device

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TAIP is

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ASCII

Front

RTCM stands for

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Radio Technical Commission for Maritime Services

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RTCM was started in

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1947 as a U.S. government advisory committee

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RTCM is now

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An independent organization supported by members worldwide

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$GPRMC

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Recommended Minimum Specific GPS/Transit Data

Front

NMEA strings

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A set of standard messages used by GPS receivers

Front

GPS DOP

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Dilution of Precision, a measure of the effect of satellite geometry on GPS accuracy