User's Manual

GTS Processor Installation Manual Page 3-19
190-00587-50 Revision A
The self test feature also checks the following external parameters:
a) Mag Variation Available status – Magnetic variation data (difference between ‘True’ North and
Magnetic North) is available.
b) GPS Available status – GPS Position, Velocity and Time source is configured and valid data is
available. Otherwise source is not configured, data is not available or data is not valid.
c) Display #1 Active status – Traffic display #1 discrete input is active.
d) Display #2 Active status – Traffic display #2 discrete input is active.
e) Radio Altitude Available status – Radio altimeter source is configured, and valid data is available.
Otherwise source is not configured, data is not available, or data is not valid.
f) Mag Heading Available status – Magnetic heading source is configured, and valid data is
available. Otherwise source is not configured, data is not available, or data is not valid.
g) Airborne Self Test Allowed status – Self test while airborne is allowed if active, otherwise self test
can only be initiated on the ground.
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 3-16 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.
DRAFT