For NMEA v4.0:
St
andard Talker ID = GPS only
$GPGSA,A,3,01,04,06,09,11,17,20,23,31,,,,1.5,0.8,1.3*31
Standard Talker ID = GNSS
$GNGSA,A,3,01,04,06,09,11,17,20,23,31,,,,1.1,0.5,1.0*25
$G
NGSA,A,3,65,71,72,73,74,80,86,87,88,,,,1.1,0.5,1.0*26
For NMEA v4.1:
Standard Talker ID = GPS only
$GPGSA,A,3,01,04,06,09,11,17,20,23,31,,,,,,,,1.5,0.8,1.3,1*2C
Standard Talker ID = GNSS
$GNGSA,A,3,01,04,06,09,11,17,20,23,31,,,,,,,,1.1,0.5,1.0,1*38
$G
NGSA,A,3,65,71,72,73,74,80,86,87,88,,,,,,,,1.1,0.5,1.0,2*38
$GNGSA,A,3,05,07,10,11,,,,,,,,,,,,,1.1,0.5,1.0,4*33
E.10 GSV - GNSS Satellites in View
$--GSV,x,x,xx,xx,xx,xxx,xx,.....,h*hh<CR><LF>
Field Description
$--GSV Header including talker ID
x Total number of messages, 1 to 9
x Message number, 1 to 9
xx Number of theoretically visible satellites according to the cur-
r
en
t almanac.
xx PRN numbers of the satellites used in the solution.
GPS 1 to 32 GPS satellites
33 to 64 SBAS satellites
65 to 99 Undefined
GLONASS 1 to 32 Undefined
33 to 64 SBAS satellites
65 to 99 GLONASS satellites
Galileo 1 to 36 Galileo satellites
37 to 64 Galileo SBAS
65 to 99 Undefined
BeiDou 1 to 37 BeiDou satellites
38 to 64 BeiDou SBAS
65 to 99 Undefined
xx Elevation in degrees, 90 maximum, empty when not tracking
Examples
Syntax
Description of fields
1024 NMEA Message Formats