• The return value is a 4-byte wide value that stores longitude similarly to NMEA text format “dddMM.mmmm,E|W” (NMEA requires 12 bytes). WGS84 geodetic datum is expected.
[dddd.dddd.s1MM.MMMM.00mm.mmmm.mmmm.mmmm]
bit: 0…13 Decimal fraction part of minutes.
bit: 14…15 00.
bit: 16…21 Integer part of minutes.
bit: 22 1.
bit: 23 Sign bit. 1 specifies West, 0 specifies East.
bit: 24…31 Degrees.
Example: E 15°22.1780' = 15.369633° = NMEA ”1522.1780,E” is 0x0F5606F4.
Value 0xFF?????? specifies a sensor error. Conversion to the decimal degrees is d + M.m / 60.
• FRC 4-byte: FRC return value equals unmodified return value.