GTS 8XX/GPA 65 Installation Manual
Page 3-15
190-00587-00
Revision 4TP
When the display receives an indication that a pilot initiated Self Test is in progress, this state is clearly
annunciated on the traffic display and the following test patterns will be executed.
Figure 3-7. Self Test
Table 3-5. Self Test
Intruder #1 (transmitted in intruder number field)
2.0 NM
Vertical Rate = Climbing, relative altitude = –200 feet
TA, Bearing = –90 degrees
Intruder #2 (transmitted in intruder number field)
3.625 NM
Vertical Rate = Descending, relative altitude = –1,000 feet
Prox Traffic, Bearing = +33.75 degrees
Intruder #3 (transmitted in intruder number field)
3.625 NM
No vertical rate, relative altitude = +1,000 feet
Other traffic, bearing = –33.75 degrees.
Audio annunciation shall be:
GTS 800/820 - “TAS system Passed” or “TAS system Failed”
GTS 850 - “TCAS system Passed” or “TCAS system Failed”
Any faults and flags are also displayed on the Normal tab of the GTS8XX Install Tool.
Faults that occur will be colored in red and flags will be colored in black.
If self test fails, refer to the diagnostics data to determine a cause.
Insure that no Intruder appears at close range to own aircraft.
NOTE
If the intruder appears at close range to own aircraft, verify that the mutual suppression
line is connected between GTS 8XX and other L-band equipment (transponder, DME,
etc.).
