Garmin G1000 Nxi System Maintenance Manual page 379

Ramp Test
The following test provides a scenario that will converge and intercept the GTS unit to assure
proper operational and surveillance functions.
Prior to simulating the 'in-air' condition, please contact your local Air Traffic
Control (Center and Approach) and inform them of your intention to perform
aircraft testing that may transmit ADS-B Out signals of an aircraft in the 'in-air'
condition. Closed hangar doors may not provide adequate isolation from ATC.
1. Disconnect the radar altimeter receive coaxial cable or cover the receive antenna so the
radar altimeter reads over 2000 feet.
2. For GTS 8000 TCAS II test only, perform the following:
a. Change BARO setting to 29.92 in-Hg on PFD1 and PFD2.
b. Set the main landing gear WOW actuators in the air position.
3. On the Map – Traffic Map page of the MFD, perform the following:
a. Press the TAS OPER softkey (for TAS/TCAS I) or TA/RA softkey (for TCAS II).
b. If an "ADS-B" softkey is displayed, press the softkey to turn it off.
4. Position ramp tester at 90 degrees (i.e. off the right wing).
5. Select the following on the ramp tester:
•
Intruder type: ATCRBS
•
Intruder Start Distance: 10 nm
•
Intruder Start Altitude: 300 ft above PFD1 displayed altitude
•
Vertical Speed: 0 fpm
•
Velocity: 360 kts
6. Initiate the intruder scenario and observe the following:
•
The simulated intruder should be acquired at approximately 6-10 NM at 90
degree bearing. Observe intruder closes on own aircraft at a rate of 0.1 NM/sec.
Verify that only a single simulated target is displayed in the expected quadrant
(exclude possible local traffic).
•
The simulated intruder should transition from Other Traffic (displayed as an open
diamond with +03 displayed above), to proximate traffic (displayed as a filled
white diamond with +03 displayed above), to a Traffic Advisory (TA) alarm
(yellow filled circle with +03 displayed above.)
•
For GTS 8000 TCAS II installations, the following applies:
The simulated intruder should transition from a Traffic Advisory (displayed as a
solid yellow circle with +03 displayed above), to a Resolution Advisory (RA)
alarm (red filled square with +03 displayed above). Additionally, a Resolution
Advisory is displayed on the vertical speed tape of PFD1 and PFD2 and an
audible Resolution Advisory is heard over cockpit speakers and headphones.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
NOTE
Page 366
Revision 1