User's Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion® HSD-440 Mark 2 Terminal
23-15-30 4-73
3 JUN 10
(a) Preparation
• Perform all previous tests and document the results before proceeding.
• As directed in previous tests, connect a computer to the maintenance port
and use the Level 2 password to access the HSD-440 Mark 2 Terminal MPU.
• Power up all avionics and align the IRS.
• Taxi or tow the aircraft to an unobstructed, line-of-sight location where a
complete 360° rotation is possible.
(b) Antenna Tracking Verification Procedure
To verify antenna tracking:
NOTE: Report 8 (starboard antenna status word) is only required where
conformal antennas are installed.
1. From the reports menu, toggle on reports 8, 20, and 23.
2. Position the aircraft at a baseline, start-of-test heading (0 degrees true
heading is recommended).
3. Confirm that the baseline heading, as reported by the aircraft IRS, is similar
to that reported from the "HD" entry in report 23.
4. Record the following data on the "Installation Checklist" on page E-1:
• Antenna selected—port or starboard (conformal only)
• Antenna gain and azimuth angle
• Heading
• Channel card C/No and signal levels
5. Rotate the aircraft through a full 360° circle while stopping to record data at
the following heading intervals:
• For conformal or phased arrays: every 15°
• For mechanically steered antenna: every 30°
(8) Optional System Checks
The following procedures are recommended but not essential. However, they serve
to confirm successful completion of all previous tests.
(a) Preparation
Activate reports 21 and 23 for the following checks.
(b) Optional Voice/Data Calls Procedure
NOTE: As in previous tests, open a log file to capture all maintenance port
activity during aircraft taxiing, flight, and landing segments.
• Voice/data calls—ground segment:
Place any combination of voice and/or data calls while the aircraft is taxied
in a full circle and/or a figure 8 pattern. Note any voice or data anomalies.