Honeywell International Inc. KTR2280A Manuale Utente

SYSTEM INSTALLATION MANUAL

KTR 2280A

Page 2-2 

15 May 2017

© Honeywell International Inc. Do not copy without express permission of Honeywell.

The installation must be in accordance with standards established by the customer's installing agency and

 

existing conditions as to unit location and type of installation; however, the following must be considered before

 

installing the system in order to assure a more satisfactory performance from the equipment.

NOTE:                The TSO identifies the minimum performance standards, tests, and other conditions applicable for 

issuance of design and production approval of the article. The TSO applicant is responsible for 
documenting all limitations and conditions suitable for installation of the article. An applicant 
requesting approval for installation of the article within a specific type or class of product is responsible

 

for determining environmental and functional compatibility.

Care must be exercised to avoid mounting components near equipment operating with high pulse current or 
high rf power outputs such as radar and satellite communications equipment. In general, the equipment must 
be installed in a location convenient for operation, inspection, and maintenance, and in an area consistent with

 

the TSO environmental limits. Determine the mounting location for system components following the guidelines

 

below

2.3.2.1                 Mounting Tray Location(s)

The KTR 2280A MMDR mounting tray can be installed in any convenient location.

2.3.2.2                 Antenna(s)

The antenna(s) must be well removed from other antenna projections, the engine(s), and propeller(s). It must 
also be well removed from landing gear doors, access doors, or other openings which will break the ground

 

plane for the antenna(s). On metal skinned aircraft, the antenna(s) must be bonded to the surface of the aircraft 
in a fore to aft location that provides the flattest ground plane. On composite aircraft, the antenna(s) must be

 

located at the center of a conductive ground plane, contoured to the shape of the aircraft, having dimensions of 
at least 2 feet by 2 feet. The antenna penetration must be designed such that the structural integrity of the

 

fuselage is not compromised. The antenna(s) need to be within 5 degrees of the centerline.

Where practical, plan the antenna location(s) to keep cable lengths as short as possible and avoid sharp bends

 

in the cable to minimize the VSWR. Avoid running other cables or wires near the antenna cable(s).

On pressurized aircraft, the antenna(s) must be sealed using an approved sealant, such as RTV No. 3145 (PN

 

016-01082-0000) or equivalent, around the connector and mounting hardware.

The antenna edge and mounting hardware recesses must 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) must be kept clean. If left dirty (oil covered), the antenna performance can be affected.

2.3.3                KTR 2280A Mechanical Installation

The mounting tray for the MMDR must be mounted using the dimensions specified in the outline and mounting

 

drawing, Figure 2-21 (KTR 2280A Installation Drawing). Install the unit as follows:

(1)                           Slide  the  MMDR  into  the  tray  until  the  locking  rod  engages  the  nut  on  the  back  of  the

 

rack.