User's Manual Part 1

Page 4-28
3 Mar 2017
23-15-29
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
JetWave™ System
© Honeywell International Inc. Do not copy without express permission of Honeywell.
6 Position and installation of the radome per Step (h).
(c) Waveguide and RF Coax interconnection to Tail Antenna assembly
The waveguide and RF coax interconnect designs ar
e aircraft specific. Consult aircraft
specific SDIM for detailed installation instructions.
NOTE: The waveguide and RF coax shall be connected to the TMA prior to installing
the TMA to the aircraft.
1 Remove the protective covers from the Rx coax, waveguide, TMA J4 RF RX port,
and TMA J3 RF TX port. Visually inspect waveguide and connector ends and make
sure that there is no debris in the cavities.
2 Connect the Rx coax cable connector to the TMA J4 port. Torque to 8 to 9 lbf in
(0.904 to 1.017 Nm). Route the coax cable under the provided strain relief bracket
as required. In some cases the coax strain relief bracket is a stand alone part and
in others it is integral to the waveguide secondary flange.
3 Connect the WR28 flexible waveguide to TMA J3 waveguide flange with the correct
o-ring (Honeywell PN MS29513-013). Torque Honeywell recommended fasteners
(Honeywell part number 90403559) per the aircraft specific Honeywell installation
drawing.
4 Attach the waveguide secondary flange to the bottom of the TMA using the
Honeywell recommended fasteners (PN MS51957-27 screw, with NAS620C6 flat
washer). Torque per the aircraft specific Honeywell installation drawing. Ensure that
the coax cable is not pinched when securing the waveguide secondary flange (if it
has integrated coax strain relief feature).
(d) Installation of the TMA Assembly
1 Carefully position the TMA assembly to the mounting bracket/tail structure by
aligning the TMA mounting clearance holes with the threaded attachments on the
aircraft mounting side. As an option, the TMA mounting bracket/tail structure may
be designed to integrate alignment pins that will mate with the alignment hole and
slot on the base of the TMA (see outline and installation drawing for details).
For the JetWave™ system to correctly point
the antenna, t
he installation offsets
should not exceed more than 1° off heading, pitch or roll with respect to principle
axis of aircraft.
2 Install and hand tighten #10 fasteners at the five mounting point locations. Fastener
selection and fastener installation torque requirements are aircraft/installation
specific and are the responsibility of the installer.
3 Connect the bonding strap to the TMA assembly. Refer to Figure 4-14 for the
bonding strap location. Add bond joint sealant as required by installers specific
standard operating procedures.
Draft as of 31 May 2017