Current satellite information

　　$GPGSA,<1>,<2>,<3>,<3>,,,,,<3>,<3>,<3>,<4>,<5>,<6>,<7>

　　<1> Mode: M = Manual, A = Automatic.

　　<2> Positioning type 1 = no positioning, 2 = two-dimensional positioning, 3 = three-dimensional positioning.

　　<3> PRN numbers: 01 to 32 indicate the satellite numbers in use in the sky, and can receive information from up to 12 satellites.

　　<4> PDOP position precision factor (0.5~99.9)

　　<5> HDOP level precision factor (0.5~99.9)

　　<6> VDOP vertical precision factor (0.5~99.9)

　　<7> Checksum. (check bit).

　　GPS Satellites in View (GSV) visible satellite information

　　$GPGSV, <1>,<2>,<3>,<4>,<5>,<6>,<7>,?<4>,<5>,<6>,<7>,<8 >

　　<1> Total number of GSV statements

　　<2> The number of the GSV in this sentence

　　<3> The total number of visible satellites, 00 to 12.

　　<4> Satellite number, 01 to 32.

　　<5> Satellite elevation angle, 00 to 90 degrees.

　　<6> Satellite azimuth, 000 to 359 degrees. actual value.

　　<7> Signal-to-noise ratio (C/No), 00 to 99 dB; no signal received without meter.

　　<8>Checksum. (check bit).

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