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C-8 Acutime 2000 Synchronization Kit User Guide
NMEA 0183
C
C.4.4 GSV – GPS Satellites in View
The GSV message identifies the GPS satellites in view, including
their PRN number, elevation, azimuth and SNR value. Each message
contains data for four satellites. Second and third messages are sent
when more than four satellites are in view. Fields #1 and #2 indicate
the total number of messages being sent and the number of each
message respectively.
$GP GSV,x,x,xx,xx,xx,xxx,xx,xx,xx,xxx,xx,xx,xx,
xxx,xx,xx,xx,xxx,xx*hh
<CR><LF>
Table C-6 GSV – GPS Satellites in View Message
Parameters
Field # Description
1 Total number of GSV messages
2 Message number: 1 to 3
3 Total number of satellites in view
4 Satellite PRN number
5 Satellite elevation in degrees (90° Maximum)
6 Satellite azimuth in degrees true (000 to 359)
7 Satellite SNR (C/No), null when not tracking
8,9,10,11 PRN, elevation, azimuth and SNR for second
satellite
12,13,14,15 PRN, elevation, azimuth and SNR for third satellite
16,17,18,19 PRN, elevation, azimuth and SNR for fourth
satellite
hh Checksum