Garmin GDL 90 Installation Manual page 53

4.2.2.9 GPS Command
The "gps" command displays the current status and data from the GPS position source. For a continuous
display of all GPS data, give the "gps" command without any parameters. Use "gps once" to display the
GPS data once. For a continuous one-line summary of the GPS status, use the "gps short" command. Use
"gps off" to turn off the GPS display.
Example: One-time GPS report, long format:
The long format GPS report shows the SVID, SNR, elevation, azimuth, and tracking mode/status for each
channel when the internal GPS receiver is used.
>gps once
Pos: N44.9071 W122.9948 Valid: Yes
Date:11-29-2005
HPL(m): 15.0
Geo Alt(feet):+168.47
ID SNR
-----------------------------------------
30 189
2 192
21 170
4 148
25 154
13 0
6 179
5 183
0 0
0 0
0 0
10 176
134 149
122 144
0 0
When an external ARINC 743A GPS source is used, the GPS summary is shown but the individual
channel statistics are not available.
Example: Short GPS status display:
The short GPS status display shows the fix status, the number of satellites visible, tracked and used, the
average SNR for the satellites in use, and the significant GPS performance metrics.
>gps short
Date ,Time
11-29-2005,00:52:01,Yes, 11, 10,
11-29-2005,00:52:02,Yes, 11, 10,
11-29-2005,00:52:03,Yes, 11, 10,
The short GPS status display command is particularly useful when testing for GPS interference.
Note: Previous versions of GDL 90 software provided a "GPSstatus" command. This command
is no longer supported.
GDL 90 Installation Manual
Time:00:47:45Z
VPL(m): 27.5
Status: 00000000
Elev Azim Mode
67 228 13
38 55 13
19 234 13
2 55 13
14 305 13
2 32 0
50 297 13
46 178 13
0 0 0
0 0 0
0 0 0
47 117 13
13 247 12
6 105 13
0 0 0
,Fix,Vis,Trk,Use,Type,SNR,HFOM-m,HPL-m,VPL-m
560-1049-02 Rev. B
Post-Installation Configuration and Checkout
Track:10 Vis:11
HFOM(m): 5 VFOM(m): 10
Status
00000000
00000000
00000000
40008400
00000000
4000C000
00000000
00000000
FFFFFFFF
FFFFFFFF
FFFFFFFF
00000000
00000800
00000000
FFFFFFFF
9,SBAS,171,
9,SBAS,171,
9,SBAS,171,
Used:9
5, 14, 26
5, 14, 26
5, 14, 26
4-5