G1000 NXi System Maintenance Manual Page 364
King Air 300 Series Revision 1
190-00716-N1
GTS Traffic System Functional Check
This section is applicable to the GTS 820/825 (TAS), GTS 850/855 (TCAS I), and GTS 8000
(TCAS II) traffic systems. Perform the following tests to verify GTS 820/850 or GTS Processor
operational and surveillance functions. Use a ramp tester such as a TIC TR220 or equivalent to
perform the tests.
These tests are performed at field elevation. Note that local traffic targets may appear during the
test and are not an indication of improper system operation.
For these tests, the radar altimeter must read over 2000 feet to play the aural alerts. To make
the radar altimeter read over 2000 feet, disconnect the receive coaxial cable or cover the receive
antenna from the radar altimeter.
To perform these tests for the GTS 8000 TCAS II traffic system, the aircraft must be in a
simulated ‘in-air’ condition. To put the aircraft ‘in-air’, place the aircraft on jacks or actuate the
weight on wheels switches on both L/H and R/H main landing gear.
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.
Figure 8-8, Traffic Map
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