Garmin GPS 25 LP Technical Specification

Garmin GPS 25 LP Technical Specification Manual pdf 21 page image

17<1> Total number of ALM sentences to be transmitted by the sensor board duringalmanac download. This field can be null or any number when sending almanacto the sensor board.<2> Number of current ALM sentence. This field can be null or any number whensending almanac to the sensor board.<3> Satellite PRN number, 01 to 32.<4> GPS week number.<5> SV health, bits 17-24 of each almanac page.<6> Eccentricity<7> Almanac reference time.<8> Inclination angle.<9> Rate of right ascension.<10> Root of semi major axis.<11> Omega, argument of perigee.<12> Longitude of ascension node.<13> Mean anomaly<14> afo clock parameter<15> af1 clock parameter4.1.2 Sensor Initialization Information (PGRMI)The $PGRMI sentence provides information used to initialize the sensor board setposition and time used for satellite acquisition. Receipt of this sentence by the boardset causes the software to restart the satellite acquisition process. If there are noerrors in the sentence, it will be echoed upon receipt. If an error is detected, theechoed PGRMI sentence will contain the current default values. Current PGRMIdefaults can also be obtained by sending $PGRMIE to the board.$PGRMI,<1>,<2>,<3>,<4>,<5>,<6>,<7>*hh<1> Latitude, ddmm.mmm format (leading zeros must be transmitted)<2> Latitude hemisphere, N or S<3> Longitude, dddmm.mmm format (leading zeros must be transmitted)<4> Longitude hemisphere, E or W<5> Current UTC date, ddmmyy format<6> Current UTC time, hhmmss format<7> Receiver Command, A = Auto Locate, R = Unit Reset.4.1.3 Sensor Configuration Information (PGRMC)The $PGRMC sentence provides information used to configure the sensor boardoperation. Configuration parameters are stored in non-volatile memory and retained