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The number of satellites (00~12) using the solution position
HDOP horizontal precision factor (0.5~99.9)
Altitude (- 9999.9~99999.9)
Height of earth ellipsoid relative to geoid
Differential time (the number of seconds since the last differential signal was
received. If it is not differential positioning, it will be null)
Differential station ID No. 0000~4095 (the previous 0 will also be transmitted,
otherwise it will be null)
$GPGSV,<1>,<2>,<3>,<4>,<5>,<6>,<7>,…<4>,<5>,<6>,<7>*hh
$GPGSA,<1>,<2>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<4>,<5>,<6>*hh
Mode, M=manual, A=automatic
Positioning type, 1=no positioning, 2=2D positioning, 3=3D positioning
PRN code (pseudo-random noise code), the satellite number (01~32, the previous 0
will also be transmitted) being used to calculate the position.
PDOP position precision factor (0.5~99.9). The spatial geometric intensity factor of
satellite distribution. Generally, the better the satellite distribution is, the smaller
the PDOP value is, which is generally less than 3.
HDOP horizontal precision factor (0.5~99.9)
VDOP vertical precision factor (0.5~99.9)