UniTraQ International Corp.
RoHS compliance
2007, Version 1.1
9
Eastern Star 7 series GT-3731R
GPS Receiver
9.4 GSV - GPS SATELLITE IN VIEW
Number of satellites in view, PRN number, elevation angle, azimuth angle, and C/No. Four satellites details
are transmitted per message. Additional satellite in view information is send in subsequent GSV messages.
Structure:
$GPGSV,x,x,xx,xx,xx,xxx,xx,…,xx,xx,xxx,xx *hh<CR><LF>
1 2 3 4 5 6 7 4 5 6 7 8
Example:
$GPGSV,3,1,09,28,81,225,41,24,66,323,44,20,48,066,43,17,45,336,41*78<CR><LF>
$GPGSV,3,2,09,07,36,321,45,04,36,257,39,11,20,050,41,08,18,208,43*77<CR><LF>
Field Name
Example
Description
1
Number of message 3
Total number of GSV messages to be transmitted (1-3)
2
Sequence number
1
Sequence number of current GSV message
3
Satellites in view
09
Total number of satellites in view (00 ~ 12)
4
Satellite ID
28
Satellite ID number, GPS: 01 ~ 32, SBAS: 33 ~ 64 (33 =
PRN120)
5 Elevation
81
Satellite
elevation in degrees, (00 ~ 90)
6
Azimuth
225
Satellite azimuth angle in degrees, (000 ~ 359 )
7
SNR
41
C/No in dB (00 ~ 99)
Null when not tracking
8 Checksum
78
