Gsa: Gnss Dop And Active Satellites - Magellan ProFlex 500 Reference Manual

Query Command Library

GSA: GNSS DOP and Active Satellites

Function
Command Format
Response Format
Example
See also
220
This command is used to output a GSA message containing
data related to DOP values and satellites used in the position
solution.
Where applicable, one response line per constellation used is
returned. In this case, the returned DOP values are the same
in all response lines.
Syntax
$PASHQ,GSA[*cc]
Syntax
$--GSA,c1,d2,d3,d4,d5,d6,d7,d8,d9,d10,d11,d12,d13,d14,f15,f16,f17*cc
Parameters
Parameter
$GPGSA: Only GPS satellites are used.
"$--GPGSA" $GLGSA: Only GLONASS sats are used.
Header $GNGSA: Several constellations (GPS,
SBAS, GLONASS) are used.
Output mode:
c1 • M: Manual
• A: Automatic
Position indicator:
• 1: No position available
d2
• 2: 2D position
• 3: 3D position
Satellites used in the position solution (blank
d3-d14
fields for unused channels)
f15 PDOP
f16 HDOP
f17 VDOP
*cc Checksum
$PASHQ,GSA
$GNGSA,A,3,20,11,13,23,17,04,31,,,,,,1.6,0.9,1.3*21
$GNGSA,A,3,81,83,68,,,,,,,,,,1.6,0.9,1.3*2C
$PASHS,NME
Description Range
$GPGSA,
$GLGSA,
$GNGSA
M, A
1-3
GPS: 1-32
GLONASS: 65-96
SBAS: 33-64
0-9.9
0-9.9
0-9.9
*00-*FF