Summary
NMEA 0183 standard GNSS Satellites in View.

Syntax
$GPGSV,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>,<13>,<14>,<15>,<16>,<17>,<18>,
             <19>*hh<CR><LF>

Fields
<1>    Total number of GSV sentences (1 to 3 for internal GPS if WeatherStation)
<2>    Sentence number (1, 2, or 3)
<3>    Total number of satellites in view
<4>    Satellite ID number, 1st SV
<5>    Elevation degrees, 0 to 90, to the nearest degree, 1st SV
<6>    Azimuth, degrees True, to the nearest degree, 1st SV
<7>    SNR (C/No) 00-99 dB-Hz, 1st SV (null field if satellite not tracked)
<8>    Satellite ID number, 2nd SV
<9>    Elevation degrees, 0 to 90, to the nearest degree, 2nd SV
<10>   Azimuth, degrees True, to the nearest degree, 2nd SV
<11>   SNR (C/No) 00-99 dB-Hz, 2nd SV (null field if satellite not tracked)
<12>   Satellite ID number, 3rd SV
<13>   Elevation degrees, 0 to 90, to the nearest degree, 3rd SV
<14>   Azimuth, degrees True, to the nearest degree, 3rd SV
<15>   SNR (C/No) 00-99 dB-Hz, 3rd SV (null field if satellite not tracked)
<16>   Satellite ID number, 4th SV
<17>   Elevation degrees, 0 to 90, to the nearest degree, 4th SV
<18>   Azimuth, degrees True, to the nearest degree, 4th SV
<19>   SNR (C/No) 00-99 dB-Hz, 4th SV (null field if satellite not tracked)




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