Honeywell BENDIX/KING KTR 2280, Руководство по установке системы

Страница: 25 / 74

n
KTR 2280 Preliminary H 08/17/06
Rev. 0, Aug/2006
©Honeywell International Inc. Do not print without express permission of Honeywell
Page 2-3
Avoid running other cables or wires near the antenna cable(s).
On pressurized aircraft, the antenna(s) should be sealed using an approved sealant, such
as RTV No. 3145 (P/N 016-01082-0000) or equivalent, around the connector and
mounting hardware.
The antenna mounting(s) should be sealed from the outside for moisture protection using
RTV or equivalent.
Mount the antenna(s) in as clean as environment as possible, away from exhaust gases
and oils. The antenna(s) should be kept clean. If left dirty (oil covered), the antenna
performance may be affected.
2.3.3 KTR 2280 MECHANICAL INSTALLATION
The mounting tray for the MMDR should be mounted using the dimensions specified in
the outline and mounting drawing,
FIGURE 2-3 KTR 2280 INSTALLATION DRAWING .
Install the unit per the following:
(1) Slide the MMDR into the tray until the locking rod engages the nut on the
back of the rack.
(2) Using an Allen wrench, turn the locking rod clockwise until it has drawn the
unit into the rack and mating connectors and is tight.
CAUTION: DO NOT OVERTIGHTEN THE LOCKING ROD
To remove the unit, turn the securing rod counter clockwise until it disengages from the
mounting tray. Then, pull the unit out of the mounting rack
For additional KXP 2290 installation information, refer to FIGURE 2-3 KTR 2280
INSTALLATION DRAWING as required
2.3.4 ANTENNA MECHANICAL INSTALLATION
2.3.4.1 VHF COM TRANSMITTER/RECEIVER ANTENNA
The VHF COM antenna should be mounted as far away as possible (8 feet, minimum)
from other similar antennas and the vertical stabilizer. Mounting the COM antenna as far
away as possible from the navigation antenna will help reduce COM to NAV interference.
The COM antenna should also be mounted as far away as possible from an ELT antenna
to prevent distortion of the radiated pattern and to prevent radiated broadband noise from
the ELT when excited by the COM transmissions. Radiated broadband noise from an ELT
is a common cause of COM-to-COM and COM-to-NAV interference. Mounting one
antenna on top of the fuselage at the highest location to ensure a good radiation pattern
and the other on the bottom of the fuselage offers good separation with a minimum of
interaction.