Figure 7-10 Inverted Signal from UART (correct polarity)
7.4.5 NMEA Message Formats
GPGGA may be substituted in place of GPRMC.
The sensor accepts both pre- and post-NMEA version 2.3 sentence structures. The difference is that in version 2.3 a Fix
Mode Indicator field was added after Magnetic Variation and before the Checksum.
NMEA messages are terminated with sentence delimiter <CR><LF> (HEX 0D0A).
7.4.5.1 Pre-NMEA Version 2.3 Message Format
Table 7-2 on the next page
provides a description of the pre-NMEA 2.3 message format contents shown below.
$GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A
Chapter 7 • Sensor Inputs
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