The auxiliary number for the wanted user defined parameter. Each additional parameter must be defined with an unique auxiliary number. Legal values are 1, 2, 3 or 4.This character string follows the ’$’-sign in the specified NMEA sentence. Up to 15 characters could be defined here.Field number for the data to receive within the specified NMEA sentence, starting with 0 after the first field delimiter. Legal values will be limited by the maximum number of characters in a NMEA sentence.Data type of the parameter. The following data types are defined:
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