NavCom LAND-PAK Rev.N - Manual (Page 180)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only 178
$GPGSV
This output message reports data associated with satellites in view, based on almanac data.
Data includes PRN number, elevation, azimuth and SNR values. Note that one GSV sentence
can only provide data for up to 4 satellites, so several sentences may be required for full
“satellite in view” information. The format for this message is in compliance with NMEA-0183
Standards version 3.0.
Output
Format:
$GPGSV,total,message,totalsv,prn1,elev1,azim1,snr1,…..,prn4,elev4,azim4,snr4*checksum
Field# Field Name Description
F1 Total Total number of messages for full information
F2 Message Message number
F3 Totalsv
Total number of satellites in view that will be included in the messages (up to
4 satellites per message)
F4 Prn Satellite PRN number
F5 Elev Elevation for the corresponding satellite in degrees (0 to 90)
F6 Azim Azimuth for the corresponding satellite in degrees (0 to 359)
F7 Snr Signal to Noise ratio for the corresponding satellite
F8 Checksum
Examples: $GPGSV,3,1,11,13,68,347,50,23,66,87,50,25,56,40,50,27,45,277,46*78
$GPGSV,3,2,11,16,23,44,45,20,22,174,36,08,21,259,38,03,21,103,36*43
$GPGSV,3,3,11,19,09,128,32,04,05,266,34,02,01,301,30,,,,*44