L3 Aviation Products Lynx NGT-9000+ Pilot's Manual page 90

Troubleshooting
Table 5-2: Troubleshooting for the Panel Mount Lynx NGT-9000
SyMPtoM
The traffic symbols on the
traffic display are non-direc-
tional (diamond shape)
Traffic display is working
correctly, but aircraft are not
showing up on the display.
No TIS-B or FIS-B Coverage
Indicator is showing, but the
aircraft is in coverage area.
5-8
cauSe/corrective actionS
Non-directional traffic symbols on
the traffic display is due to one of the
following reasons:
1. The directional information that
is being received by the MSS
does not have directional data.
The MSS continues to transmit
non-directional data to the traffic
display.
2. An alternate traffic display (if
installed) does not support the
DTIF data format necessary to
show directional data provided by
ADS-B.
Lack of data as described below:
1. The ADS-B In requires other
aircraft to be equipped with ADS-
B Out.
2. The TIS-B and ADS-R services
are supported when in range of
ground stations providing the
service.
3. If receiving the TIS-B service,
Mode C and Mode S transponder
equipped aircraft that do not
provide altitude information are
not seen on the traffic display.
4. If receiving the TIS-B service,
but aircraft not equipped with a
transponder, or equipped with a
Mode A transponder are not part
of the TIS-B data and will not be
seen on the traffic display.
The Lynx NGT-9000 or a system
component may have failed or de-
graded.
• At next power cycle if symptoms
persist contact L-3 Field Service
before removal of the unit or other
equipment..
Lynx NGT-9000
®
Pilot's Guide