Section 2: Control and Display
TIS Traffic Display Status and Pilot Response
• STBY — When the 400W/500W displays STBY
in the upper right hand corner of the display the
TIS system is in standby mode and cannot display
traffic data.
• OPER — When the 400W/500W displays OPER
in the upper right hand corner of the display the
TIS system is in operational mode and available
to display traffic on the Traffic or Map Page.
• AGE — If traffic data are not refreshed within
6 seconds, an age indicator (e.g., "AGE 00:06")
is displayed in the lower right corner of the dis-
play (when displaying traffic). The pilot should
be aware that the quality of displayed traffic is
reduced in this condition.
• TRFC CST — If data are still not received between
six and twelve seconds, the "TRFC CST" (traffic
coasting) banner located above the AGE timer will
indicate that displayed traffic is held even though
the data are not current. The pilot should be aware
that the quality of displayed traffic is reduced in
this condition.
Traffic Age Indication showing "traffic coasting".
• TRFC RMVD — If data are still not received after
twelve seconds, the "TRFC RMVD" banner will
indicate that traffic has been removed from the
display due to the age of the data being too old
to "coast" (for the time period after 12 seconds
from the last receipt of a TIS message). The pilot
should be aware that traffic may be present but
not shown.
Traffic Page displaying "TRFC RMVD"
• UNAVAIL — After a 60 second period elapses
with no data, TIS is considered to be unavailable.
This state is indicated by the text "UNAVAIL".
The pilot should be aware that "UNAVAIL" could
indicate a TIS coverage limitation due to a line-
of-sight situation, a low altitude condition, no
TIS service, or a result of flying directly over the
radar site providing coverage (cone of silence).
• NO DATA — "NO DATA" is displayed when no
data are being received from the GTX 330. The
pilot should be aware that this status may be a
normal mode of operation in a dual transpon-
der installation where the GTX 330 with TIS is
not the selected transponder. The GTX 330 may
not be powered on.
• DATA FAIL — "DATA FAIL" is displayed when
data are being received from GTX 330, but there
was a failure detected in the data stream. The
pilot should see the dealer for corrective action.
• FAILED — "FAILED" is displayed when the
GTX 330 has indicated it has failed. The pilot
should see the dealer for corrective action.
190-00356-30 Rev C
Part One: Section 2
TIS Controls and Display
banner.
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