User's Manual Part 6

Page 6-16

3 Mar 2017

23-15-29

SYSTEM DESCRIPTION AND INSTALLATION MANUAL

JetWave™ System

(4) The recommended values are dependent on the radome and these values are calculated by

the KANDU based on the input from the aircraft IRS and the selected satellite coordinates

and the APM configuration data. The Auto Alignment application automatically presents the

four true headings to the operator when a target satellite is selected from the “recommended”

target which is also location dependent. There is a recommended tolerance range for these

headings which is dependent on the radome and configured in the APM configuration

data.The chosen recommended true headings are used so that the radome has consistent

performance (i.e. no large changes in curvature) over the area being used during alignment.

NOTE: It is advised not to do the automatic antenna alignment during rains with heavily

clouded sky.

(a) The antenna alignment should be performed only after completion of system power up.

The health sta

tus of each LRU should be checked on the GUI, and there should be no

display of system muting due to Initialization. Only then should the Initiate button be

pressed on the Antenna Alignment GUI page.

(b) The JetWave™ system uses the following input parameters during the antenna

alig

nme

t procedure:

• Aircraft IRS data

• OAE IMU data

• RSSI as reported from the Modman.

calibration

process, all LRUs of the JetWave™ system need to be powered up with

aircraft IRS system functioning and providing valid inputs. The GUI page indicates the

IRS status.

(d) Once the aircraft is aligned to within the tolerance range of any of the recommended

aircraft

heading, the grayed out on the “Initiate” button

will be changed, indicating the

system readiness to commence the antenna alignment process.

(e) The GUI Antenna Alignment Calibration progress status bar is shown in Figure 6-14.

(f) On successful completion of the antenna calibration, the status changes to “Aligned”.

NOTE: If for some reason the Calibration procedure fails, the operator will be given the

opportunity to repeat the procedure. This may require several attempts to

finalize and confirm the offsets.

Draft as of 31 May 2017