SKY899
Installation Manual
Page 3-6 - Installation Checkout
009-11900-001
July 18, 2013
Revision F
3.3.2 System Setup Verification and Operation
CAUTION
Each time the TRC, directional antenna, or directional antenna cables
(including connectors) are installed, removed or replaced, the TRC must be
calibrated to the directional antenna (see calibration below and paragraph
4.4.3).
1.
With SKY899 turned OFF, enter the Service Menu (see paragraph 4.4) by holding the left two
buttons (soft-keys 1 and 2) depressed as the system is turned ON. From the Service Menu, select
Calibration:
a.
Select correct antenna location (top or bottom). The "SKY899 Antenna Calibration in Process..."
message will appear. The Built In Test (BIT) signal phase will be calibrated for the TRC, cable
connections, and antenna (see paragraph 4.4.3).
b.
Verify calibration passed: A new bit phase value is displayed and no error messages appeared.
c.
Press exit to return to Service Menu screen.
2.
From the Service menu select Information. From the Information menu, select Data Monitor. The
Data Monitors menu will appear.
3.
Select each of the data monitors and verify the sensor information is correct (see paragraph 4.4.2.3):
a.
Change the status of the extended audio switch, landing gear, squat switch, altitude, and heading
sensor. Verify data monitors show the correct input changes (i.e., sensing of these signals).
b.
If the information is not correct, the sensor has failed to communicate with the TRC. Check
operation of the sensor and connections between the TRC and sensor.
c.
Select exit until you return to the Service Menu.
4.
From the Service Menu, select Ground Test (see paragraph 4.4.4).
5.
From the Ground Test menu, select Perform Ground Test.
6.
Verify operation of range function. Soft-key (3) is labeled to indicate the current range. Press soft-key
(3) to toggle the display range between 2, 6 and 15 nm.
7.
Select the 6 nautical mile range.
8.
Verify that the system toggles through the altitude display modes. Soft-key (2) is labeled to indicate
the current mode. Press Soft-key (2) to select normal (NRM), below (BLW), above (ABV), and
unrestricted (UNR).
9.
Select the NRM (normal) mode.
10.
Position the aircraft with the nose aligned on any 90 degree heading. Avoid areas within 250 ft of
obstructions (e.g., hangers, large aircraft, control towers, etc.) where there is a potential for multipath
problems. Locate and mark test points at 30 degree intervals (i.e., 000, 030, 060, 090, 120, 150, 180,
210, 240, 270, 300, and 330 degrees) with respect to the directional antenna. Mark these points at the
same distance, approximately 100 ft. (or less), from the aircraft.
The document reference is online, please check the correspondence between the online documentation and the printed version.
