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600840-000031 Stratus ES/ESG Installation Instructions
Rev. 2.2
Last Revised: February 20, 2018
Page 40 of 45
7. Troubleshooting
Use the table below to troubleshoot possible problems with Stratus ES/ESG.
For a full list of BIT failures, see Section 4.19.9.
Problem
Troubleshooting Steps
GPS information is not being
received
Stratus ES:
1. Enter into configuration mode on Stratus ES.
2. Go to the BIT diagnostic screen.
If the GPS Failure BIT failed (a “1” appears):
There is a problem with the connection to the GPS
position source. Verify that the connection between
Stratus ES and the GPS position source is secure.
If the GPS Failure BIT did not fail (a “0”
appears):
The GPS position source is not achieving GPS
lock, but the connection is good and the position
source is configured correctly. Refer to the
documentation for your GPS position source for
troubleshooting.
NOTE:
A BIT failure will not appear until 5 minutes after
Stratus ES is powered on.
Stratus ESG:
1. Verify that the aircraft has a clear view of the sky.
2. Verify that the antenna connections and cables are
not loose.
3. Verify that the coax cable is connected to the
correct port.
NOTE
: Initial GPS fix could take up to 20 minutes.
GPS antenna signal quality is
reduced (Stratus ESG only)
1. Turn off all avionics.
2. Enter into configuration mode on Stratus ESG.
3. Go to the CN0 diagnostic screen and wait for the
CN0 values to populate.
4. Turn on one avionic at a time. If the CN0 values
drop by 2 dB or more, there might be an
interference problem. The avionic causing the
interference might need to be relocated in the
cockpit, antennas might need to be moved farther
apart, or filters might need to be added to the
avionic.