VAL Avionics COM 2KR Installation And Operator's Manual
VAL AVIONICS LTD
COM 2KR
Remote VHF Transceiver
Installation and Operator’s
Manual
Revision 3
March 2013
P/N 172201-3
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
V A L A V I O N I C S L T D
Revision History:
September 2012 – Initial Printing
December 2012 – Updated Appendix B wiring diagram to show RS-232 connection.
Added dimensional drawings of COM 2KR case.
Figure 1 updated to current design.
Figure 3 & 4 Removed, as they are no longer accurate.
March 2013- corrected typographical errors.
Corrected Table 4
Corrected Figure 3
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Table of Contents
1 SECTION I - GENERAL INFORMATION .....................................................................................................4
1.1 INTRODUCTION...........................................................................................................................................4
1.2 SCOPE ............................................................................................................................................................4
1.3 EQUIPMENT DESCRIPTION.......................................................................................................................4
1.4 FCC .................................................................................................................................................................5
1.5 SPECIFICATIONS .........................................................................................................................................6
1.6 EQUIPMENT SUPPLIED ..............................................................................................................................7
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED .......................................................................................7
1.8 LICENSE REQUIREMENTS.........................................................................................................................7
2 SECTION II - INSTALLATION .......................................................................................................................8
2.1 GENERAL INFORMATION .........................................................................................................................8
2.1.1 Scope .....................................................................................................................................................8
2.2 UNPACKING AND INSPECTION................................................................................................................8
2.3 EQUIPMENT INSTALLATION PROCEDURES .........................................................................................8
2.3.1 Cooling Requirements ...........................................................................................................................8
2.3.2 Mounting Requirements ........................................................................................................................8
2.3.3 Wire Harness Fabrication ......................................................................................................................8
2.3.4 COM 2KR Installation...........................................................................................................................9
2.4 POST INSTALLATION CHECK...................................................................................................................9
2.4.1 Operational Check .................................................................................................................................9
2.4.2 Final Inspection .....................................................................................................................................9
2.5 LIMITATIONS ...............................................................................................................................................9
3 SECTION III - OPERATION ..........................................................................................................................10
3.1 GENERAL INFORMATION .......................................................................................................................10
3.1.1 Scope ...................................................................................................................................................10
4 SECTION IV - WARRANTY AND SERVICE ..............................................................................................11
4.1 LIMITED WARRANTY ..............................................................................................................................11
4.2 SERVICE ......................................................................................................................................................11
5 Appendix A – INSTALLATION DRAWINGS AND CONNECTOR LAYOUT.........................................12
6 Appendix B – WIRING DIAGRAMS ..............................................................................................................14
7 Appendix C – Certifications .............................................................................................................................15
7.1 FAA Acceptability: .......................................................................................................................................15
8 Appendix D – INSTRUCTIONS FOR CONTINUED AIRWORTHINESS ................................................16
8.1 MAINTENANCE INSTRUCTIONS............................................................................................................16
9 Appendix E – RS-232 Command Interface .....................................................................................................17
9.1 Input Commands ...........................................................................................................................................17
9.2 Output Messages ...........................................................................................................................................17
9.3 Data Format...................................................................................................................................................17
9.4 Default Message Output ................................................................................................................................17
9.5 Message Formats...........................................................................................................................................18
9.6 Message Definitions ......................................................................................................................................19
9.6.1 Input Messages ....................................................................................................................................19
9.6.2 OUTPUT MESSAGES ........................................................................................................................23
Table 1: Specifications .................................................................................................................................................6
Table 2: Equipment Supplied .......................................................................................................................................7
Table 3: Equipment Not Supplied ................................................................................................................................7
Table 4: Rear Connector Pin Functions......................................................................................................................13
Table 5 - Data Output Requests...................................................................................................................................19
Figure 1: Physical Dimensions ...................................................................................................................................12
Figure 2: P1 Connector Pin Out..................................................................................................................................12
Figure 3: COM 2K Basic Wiring Diagram..................................................................................................................14
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1 SECTION I - GENERAL INFORMATION
1.1 INTRODUCTION
Thank you for purchasing our COM 2KR – Remote VHF Transceiver. Here at Val Avionics Ltd., our core design
philosophy is based on the ease of installation and use. The COM 2KR represents 20 years of refinement in that
process, based on the feedback of customers that have used the COM 760. The COM 2KR takes the original idea of
the COM 760: a simple-to-use, reliable unit without the frills of other radios, and overhauls that idea with new and
exciting features.
That design philosophy translates into ease of installation and integration that makes the COM 2KR – VHF
Transceiver a communication solution specialized for operating with the latest EFIS system technology. The COM
2KR satisfies the need for compact, fully integrated, quality radio that can be counted on to provide years of
maintenance-free, reliable service.
Before installing and/or using your new COM 2KR please read this manual completely. This will ensure proper
installation and familiarize you with all of the features your COM has to offer.
1.2 SCOPE
This manual will provide detailed information about the installation and operation of the COM 2KR – Remote VHF
Transceiver. It will also provide equipment limitation information and instructions for continued airworthiness.
1.3 EQUIPMENT DESCRIPTION
The COM 2KR has been designed for integration with most major EFIS systems. Using the NEMA-0187
communications standard, the interface is compatible with the Garmin SL-30 command stack. Using state-of-the-art
technology Val Avionics Ltd. has created a radio that will provide the pilot with seamless and easy-to-operate
communications.
The COM 2KR simplifies installation into an aircraft by allowing installation anywhere. Using a standard RS-232
serial connection, the COM 2KR can connect to many available EFIS systems available today.
The COM 2KR has one internal receiver. The internal receiver operates from 118.00 MHz to 137.975 MHz. This
receiver is capable of receiving down to 2µV with a 6dB signal-to-noise ratio.
The COM 2KR has many audio inputs and outputs to facilitate any installation. The unit has two capacitively
coupled audio inputs for adding a Nav receiver audio output or other such audio device. The COM also has a 5W
speaker output and 50mW headphone output.
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1.4 FCC
The COM 2KR transceiver is a voice-modulated communications device utilizing amplitude modulation,
with a maximum power of 10W, operating in the 6K00A3E emission designator, with a 25kHz channel spacing.
This unit has been tested and found to comply with the limits for a Class B receiver, pursuant to Part 15 of
the FCC rules, as well as the emission requirements set forth in Part 87 of the FCC rules. These limits are designed
to provide reasonable protection against harmful interference when it is operated in an aircraft environment. The unit
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions manual, may cause harmful interference to radio communications. Operation of the unit in a residential
area is likely to cause harmful interference in which case the user will be required to correct the interference at his
own expense.
FCC ID: EZN5PRCOM2KR
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1.5 SPECIFICATIONS
Table 1: Specifications
SPECIFICATIONS CHARACTERISTICS
Environmental: (RTCA/DO160D)
Minimum Performance Standard (RTCA/DO-186B)
Physical Dimensions:
Height .86 inches (2.54 cm)
Width 5.9 inches (15.88 cm)
Depth 10.1 inches (22.86 cm)
Weight: 2.0 pounds (1.5 kg)
Mounting: Ridged mounting, no shock mounting required
Temperature Range: -30 to +55 Celsius with short time operations at
+70 Celsius
Power Requirements:
Voltage 11.0 to 30.0 VDC
Current 0.5 Amp Rec. 3 Amp max transmit
Receiver:
VHF Frequency 118.00 to 136.975 MHz
Sensitivity 2 µV to provide a 6dB S+N:N
Channel Spacing 25 kHz
Stability
Selectivity
Audio output
AGC Characteristics From 10 µV to 200 µV the audio level will not
Transmitter:
Carrier Power 8W nom. RMS
Duty Cycle 50%
Interface: RS-232
Baud Rate 9600
Manufacturer’s Model Number
Part Number VPN 0800106
±.002%
≥60dB
5W to 4Ω Spk 50mW to 600Ω Phone
vary more than 3db.
COM 2KR
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1.6 EQUIPMENT SUPPLIED
Table 2: Equipment Supplied
QTY DESCRIPTION PART NUMBER
1 COM 2KR – 760 Channel Radio
1 INSTALLATION KIT
0800106
651008
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED
Table 3: Equipment Not Supplied
QTY DESCRIPTION PART NUMBER
1 Circuit Breaker 5 amp Potter & Brumsfield PB W23
1 Aircraft Cabin Speaker Ref aircraft parts manual for
specific part number
1 Contact Crimping Tool w/
Positioning Tool
AMP P/N 601966-1
AMP P/N 601699-5
1.8 LICENSE REQUIREMENTS
There is no licensing requirement to operate the COM 2KR when installed and operated in accordance with this
manual.
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2 SECTION II - INSTALLATION
2.1 GENERAL INFORMATION
2.1.1 Scope
This section of the manual will provide the needed information to successfully complete the installation of your new
COM 2KR – Remote VHF Transceiver. Please read this section completely before proceeding with the installation
process. Although the COM 2KR installation procedures are designed with the do-it-yourselfer in mind, we at Val
Avionics Ltd. strongly suggest that you seek the advice of a qualified avionics installation facility before beginning
this or any other installation project. Qualified avionics installation technicians can offer good advice as to timetested installation practices and techniques that can save you many hours of time and frustration.
2.2 UNPACKING AND INSPECTION
Use care when unpacking the equipment. Inspect the unit and supplied parts for visual signs of damage during
shipment. Examine the unit for loose screws, dents, broken buttons and other signs of damage that may have
occurred during shipment. Verify the contents of the container with the list in section 1.5. If any damaged or missing
parts are discovered during the inspection save the shipping material and contact the freight carrier to file a claim. If
it is suspected that parts were omitted from the container please feel free to contact Val Avionics Ltd., to acquire the
missing items.
2.3 EQUIPMENT INSTALLATION PROCEDURES
2.3.1 Cooling Requirements
Forced air-cooling is not required for the COM 2K – VHF Transceiver. However, when planning the location for
mounting, ensure adequate spacing from heat producing sources such as heating or defrosting ducts.
2.3.2 Mounting Requirements
The COM 2KR should be rigidly mounted in the aircraft cabin using the hardware provided in the installation kit.
Ensure that the mounting location will provide easy access for future maintenance. Ensure that the mounting
position will provide adequate clearance between the unit and the associated wire harness and the aircraft controls.
Consult FAA Advisory Circular AC 43.13-2B for acceptable practices and techniques.
2.3.3 Wire Harness Fabrication
Val Avionics Ltd. Strongly recommends the use of a factory fabricated wire harness (VPN 751028) with your new
COM 2KR – Remote VHF Transceiver. Use of the factory fabricated wire harness will ensure proper operation of
the COM 2KR, reduction in the occurrence of interfering signals and ground loops, greatly reduced installation time,
and provide prolonged trouble-free performance of your new equipment.
Although strongly recommended, it is not required to use the factory fabricated wire harness when installing the
COM 2KR. A wiring harness can be fabricated in the field. Refer to appendix B of this manual for a complete
wiring diagram. The COM 2KR is connected to the aircrafts avionics bus via a 5 AMP circuit breaker. All wires
must be 22 AWG MIL-SPEC, unless otherwise noted in accordance with current regulations. Two and three
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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.
V A L A V I O N I C S L T D
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.
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