Garmin GPSMAP 800 Series, Pilot'S Manual Addendum

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1.4 AURAl AleRTS
A TA consists of a displayed traffic symbol (solid yellow circle) and an aural alert.
The aural alert announces “traffic”, followed by the intruder aircraft’s position, altitude
relative to own aircraft (“high”, “low”, or “same altitude”), and distance from own
aircraft; e.g. “traffic, 12 o’clock, high, 3 miles”.
1.5 Self-TeST
The GTS 8XX automatically performs a self-test upon power up. The self-test
checks internal parameters and calibrates components of the GTS 8XX. The self-test
can also be initiated by the user during normal operation.
Check for the following test criteria on the Traffic Page during power-up:
• If the GTS 8XX passes the power-up test; and the aircraft both has a squat
switch and is on the ground, the Standby Screen is displayed (Figure 2).
• If the GTS 8XX passes the power-up test and the aircraft both has a squat
switch and is airborne, the Traffic Page is displayed on the 6-nm display range
and in the normal altitude display mode.
• If the GTS 8XX passes the power-up test and the aircraft does not have a squat
switch, the Standby Screen is displayed (Figure 2).
• If the GTS 8XX fails the power-up test (as indicated by a FAILED screen),
the GTS 8XX is inoperable, see the GTS 8XX Installation Manual for detailed
information on Failure Response.
NOTE: The FAILED message is displayed when the system detects an error
that prohibits further traffic display operation.
NOTE: When the system is in standby, the GTS 8XX does not transmit,
interrogate, or track intruder aircraft.
400/500 Pilot’s Guide Addendum for GTS 8XX Interface 190-00140-78 Rev. A 4
GTS 8XX Interface