Trimble Outdoors SK8 - Manual (Page 185)

Lassen-SK8 Embedded GPS Module E-5
NMEA 0183
E.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 4 satellites are in view. Fields #1 and #2
indicate the total number of messages being sent and the number of each message
respectively.
GSV,x,x,xx,xx,xx,xxx,xx,xx,xx,xxx,xx,xx,xx,xxx,xx,xx,xx
,xxx,xx
Table E-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