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User Manual Part 1

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16 Sep 2015
23-15-29
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
JetWave™ System
© Honeywell International Inc. Do not copy without express permission of Honeywell.
(f) It is recommended to use flexible waveguide / Coax RF interface with interconnect
losses not to exceed 1.5 dB on the transmit path and 2.9 dB on the receive path between
the KRFU and FMA assembly. Honeywell has developed a RF component kit
(90404243) containing a suitable waveguide and coaxial cable.
(5) KRFU Installation
Refer to Section 4.K.(3). KRFU Installation
procedure.
(6) Installation of the Waveguide and Coax Interconnect Between the FMA and Externally
Mounted KRFU
(a) Loo
sely attach the waveguide and coax support brackets to the AIM. The flexible wa
ve
guide and coax cable assembly kit and its routing are aircraft specific.
(b) Remove the protective covers from the FMA J3 RF TX. Visually examine connector
en
ds and make sure that there is no debris in the cavities.
(c) Loosely connect the WR34 flexible waveguide to the FMA J3 wa
veguide flange with
sealing gasket. Hand tighten the fasteners.
(d) Loosely attach the waveguide and coax support brackets to the AIM.
(e)
Loosely connect the WR34 to WR28 waveguide adapter to the KRFU with se
aling
gasket. Apply torque to the waveguide adapter flange for all fasteners as recommended.
(f) Loosely connect the waveguide assembly to the KRFU with a sealing
gasket.
(g) Apply torque to the KRFU waveguide flange for all fa
steners as recommended.
(h) Firmly attach waveguide support brackets to adapter plate.
The minimum allowable bend radius to the center line for flexible waveguide is 1 inch (25.4
mm) in H plane (
bend along the long axis of the waveguide) and 0.5 inch (12.7 mm) in E plane
(bend along the short axis of the waveguide). The minimum allowable bend radius for the
coax cable is 0.25 inch (6.35 mm). Refer to Figure 2-17.
Figure 2-17. View of H Plane and E Plane Bends
(7) Connecting the FMA Interface, KRFU Power, and Control Interfaces
The control signals for the KRFU are supplied from the KANDU and are connected to KRFU
J2 receptacle.
The 115 VAC power supply for the KRFU is supplied from the aircraft power and is connected
to KRFU J1 receptacle.