V A L A V I O N I C S L T D
C O M 2 K R – R E M O T E V H F T R A N S C E I V E R
I N S T A L L A T I O N A N D O P E R A T O R ’ S M A N U A L
Revision 3
Page 9 of 27
March 2013
conductor shielded MIL-C-27500 or equivalent wire must be used where indicated. Use AMP Contact Crimping
Tool (AMP P/N 601966-1) with Positioning Tool (AMP P/N 601699-5) or equivalent to ensure good quality
contacts. Refer to FAA Advisory Circular AC 43.13-2A for acceptable practices and techniques.
2.3.4
COM 2KR Installation
2.3.4.1
Mounting
The COM 2KR is rigidly mounted in the aircraft cabin or avionics bay. Once a location has been selected, a visual
inspection should be made of the area, which will be occupied by the COM 2KR and harness assembly for obvious
obstructions such as heater ducts, control cables, fuel and oil lines or any other obstruction. Pay particular attention
to any control systems. They should be moved to the full limit of travel and verified that sufficient clearance exists
prior to beginning installation. Mark and drill the mounting holes as required.
With the unit held in place, insert the four supplied 6-32 X 3/8” screws from the front and tighten as appropriate.
2.3.4.2
Antennas
One antenna is required for the COM 2KR installation. A standard COM antenna can be used with the unit such as a
COMANT CI-121 or equivalent. Follow the antenna manufacture’s installation Manual to ensure proper installation
of the antenna.
2.3.4.3
Audio
The COM 2KR has two auxiliary audio inputs and two audio outputs, Speaker audio and Headset audio. In
installations with two radio and/or more audio devices, it is strongly recommended that these audios be coupled to a
quality audio selector panel.
2.4
POST INSTALLATION CHECK
2.4.1
Operational Check
Refer to section three of this manual. Check all functions of the COM 2KR for proper operation. Check the
operational functions of other equipment installed in the aircraft in accordance with the individual manufacture’s
operation manuals to insure that no cross interference exists as a result of this installation.
2.4.2
Final Inspection
Verify that the wiring is bundled away from all controls and that no part of the installation interferes with the
movement of the aircraft controls. Move all of the aircraft controls through their full range of movement while
visually verifying that the installation does not mechanically interfere with the control movement. Verify that the
wiring harnesses are properly secured to the aircraft structure in accordance with accepted practices as described in
AC 43.13 and that adequate strain relief and service loops have been provided. Ensure that there are no kinks or
sharp bends in the wire harnesses. Verify that the wire bundles are not exposed to any sharp or abrasive surfaces.
Complete log book entries, weight and balance computations and other documentations as required.
2.5
LIMITATIONS
There are no known limitations to the operation of the COM 2KR. Instructions for Continued Airworthiness and
Return to Service Instructions can be found in Appendix C.
