Simrad MX575D User Manual

| 35
Technical specications | HS80/HS80A/MX575C/MX575D User Manual
(3) GNS-GNSS Fix Data
Fix data for single or combined satellite navigation systems (GNSS). This sentence provides fix
data for GPS, GLONASS, possible future satellite systems and systems combining these. This
sentence could be used with the talker identification of GP, GPS, GL for GLONASS, GN for GNSS
combined system.
If a GNSS receiver is capable simultaneously of producing a position using combined satellite
systems, as well as a position using only one of the satellite systems, then separate $GPGNS
and $GLGNS sentences may be used to report the data calculated from the individual sys-
tems.
If a GNSS receiver is set up to use more than one satellite system, but for some reason one
or more of the systems are not available, then it may continue to report the positions using
$GNGNS, and use the mode indicator to show which satellite systems are being used
$GNGNS,hhmmss,llll.llll,a,yyyyy.yyyy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx,x*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
¼ Notes:
1 UTC of position
2, 3 Latitude, N/S
4, 5 Longitude, E/W
6
Mode Indicator
N = No Fix available or invalid
A = Autonomous. Satellite system used is non-differential mode in position
fix
D = Differential. GPS, SPS Mode, fix valid
P = Precise. Satellite system used in precision mode.
R = Real Time Kinematic
F = Float RTK
E = Estimated (DR) mode
M = Manual Input Mode
S = Simulator Mode
7 Number of Satellites in use, 00-99, may be different from the number in view
8 Horizontal Dilution of Precision (HDOP)
9 Antenna altitude/mean-sea-level (geoid)
10 Units of antenna altitude, Meters
11, 12 Geoidal Height, Meters
13 Age of Differential GPS Data
14 Differential Reference Station ID
15 RAIM indicator
S = Safe
U = Unsafe
C = Caution
N = None

Simrad MX575D Specifications

General

Brand	Simrad
Model	MX575D
Category	Marine GPS System
Language	English