GNS 530(A) Pilot’s Guide and Reference
190-00181-00 Rev. H
14-33
SECTION 14
ADDITIONAL FEATURES
Troubleshooting
Although it is the responsibility of the facility that
installed the GDL 49 or GDL 69/69A to correct any
hardware problems, the pilot can perform some quick
troubleshooting steps to find the possible cause of a
failure.
First, ensure that the owner/operator of the aircraft
in which the GDL 49 or GDL 69/69A is installed has
subscribed to Echo Flight or XM Satellite Radio for a
Service Plan, and verify that it has been activated. Perform
a quick check of the circuit breakers to ensure the GDL 49
or GDL 69/69A has power applied. If a failure still exists,
continue to the Data Link Status Page.
The fields on the Data Link Status Page may provide
insight to a possible failure. Information displayed at this
page should be noted and provided to the repair station.
The Connectivity Message table should also provide a
clear indication of any potential internal failures. If no
indications exist, check the circuit breakers and electrical
connections to the GDL 49 or GDL 69/69A, and ensure
the unit has power applied. Repair stations are equipped
to repair the system, should a hardware failure exist.
Monitoring the Data Link
The Data Link Status Page provides an indication of
the integrity of the Data Link. The Data Link Page allows
the pilot to monitor the system and determine the possible
cause of a failure.
View the Data Link Status Page:
1) From the AUX Page Group, select the Data Link
Page.
2) Highlight ‘Data Link Status’ and press the
ENT
Key.
3) The Data Link Status Page (Figure 14-46) is
displayed.
Figure 14-46 Data Link Status Page
The GDL 49 Datalink Status Page shows the following
fields:
•
TX Queue - Shows the number of requests in the
GDL 49’s transmit queue waiting to be sent to the
satellite.
•
RX Queue - Shows the number of responses in the
GDL 49’s receive queue waiting to be sent to the
GNS 530.
•
Sat ID/Connectivity - Shows the current satellite
in view and also indicates the status of the current
satellite connection. See Table 14-8.
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