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12 NMEA-0183 Output
132 5700 GPS Receiver User Guide
Reference
GSV Satellite Information
The GSV message string identifies the number of SVs in view, the
PRN numbers, elevations, azimuths, and SNR values. An example of
the GSV message string is shown below. Table 12.4 describes the
message fields.
$GPGSV,4,1,13,02,02,213,,03,-3,000,,
11,00,121,,14,13,172,05*67
Table 12.4 GSV message fields
Field Meaning
1 Total number of messages of this type in this cycle
2 Message number
3 Total number of SVs visible
4 SV PRN number
5 Elevation, in degrees, 90° maximum
6 Azimuth, degrees from True North, 000° to 359°
7 SNR, 00
–99 dB (null when not tracking)
8
–11 Information about second SV, same format as fields 4–7
12
–15 Information about third SV, same format as fields 4–7
16
–19 Information about fourth SV, same format as fields 4–7