User's Manual Part 6

Page 6-13

3 Mar 2017

23-15-29

SYSTEM DESCRIPTION AND INSTALLATION MANUAL

JetWave™ System

initiate the "Calibrate Transmit Cable" commanded test. The recommendation is not mandatory and

Jetwave will continue to operate at a high level of performance over the service life.

To maintain a fully optimized Jetwave system, it is recommended to perform a single cable calibration in

the 20 year service life, at around 8,000 to 12,000 hours of operation. This optimization will minimize

minor effects of device aging in the transmit chain, and may be performed conveniently using the GUI to

initiate the "Calibrate Transmit Cable" commanded test. The recommendation is not mandatory and

Jetwave will continue to operate at a high level of performance over the service life.

Figure 6-11. Calibrate Transmit Cable Status Page

6.5 TMA and FMA Antenna Alignment Procedure

A. Antenna Assembly Orientation

For the JetWave™ system to point to the servicing satellite correctly

, it is important to align the

antenna assembly after installation or replacement. The TMA/FMA assembly has a built in IMU and

its orientation must be aligned with respect to the principal axes of the aircraft which is determined

through aircraft IRS.

(1) To do the automatic antenna alignment calibration, aircr

aft should have a functional IRS,

interfaced with the KANDU through A429 interface, and should have the required ARINC 429

labels as defined in the APM configuration file.

(2) During the physical installation, the IMU principal axes

of the TMA/FMA must be aligned with

those of the aircraft within ± 1° on the pitch, roll, and yaw axis. The installation offsets, are

then calculated by the KANDU automatically from data received from the aircraft Inertial

Navigational System, the TMA/FMA IMU assembly and the satellite signal.

Draft as of 31 May 2017