VAL Avionics COM 2000 Setup guide

VAL AVIONICS LTD
COM 2000
VHF Transceiver
Installation and Operator’s
Manual
Revision 3
March 2013
P/N 172200-3

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Revision History:
October 2010 – Initial Printing
May 2012 – Inserted section 1.4: FCC regarding FCC ID and emissions.
December 2012 – Updated Appendix A, table 4 with serial pin port. Spelling Corrections
March 2013 – Updated Appendix A for units with serial number 20720 to current.

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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 Emission Band ........................................................................................................................................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 ......................................................................................................................9
2.3.4 COM 2000 Installation ..........................................................................................................................9
2.4 POST INSTALLATION CHECK...................................................................................................................9
2.4.1 Operational Check ...............................................................................................................................10
2.4.2 Final Inspection ...................................................................................................................................10
2.5 LIMITATIONS .............................................................................................................................................10
3 SECTION III - OPERATION 11
3.1 GENERAL INFORMATION .......................................................................................................................11
3.1.1 Scope ...................................................................................................................................................11
3.1.2 Display Functions ................................................................................................................................11
3.1.3 User Controls .......................................................................................................................................11
3.2 System Configuration....................................................................................................................................13
3.2.1 Accessing Setup Functions ..................................................................................................................13
4 SECTION IV - WARRANTY AND SERVICE 14
4.1 LIMITED WARRANTY ..............................................................................................................................14
4.2 SERVICE ......................................................................................................................................................14
5 Appendix A – INSTALLATION DRAWINGS AND CONNECTOR LAYOUT 15
6 Appendix B – WIRING DIAGRAMS 18
7 Appendix C – Certifications 19
7.1 TSO Certification: .........................................................................................................................................19
8 Appendix D – INSTRUCTIONS FOR CONTINUED AIRWORTHINESS 20
8.1 MAINTENANCE INSTRUCTIONS............................................................................................................20
Table 1: Specifications .................................................................................................................................. 6
Table 2: Equipment Supplied ........................................................................................................................ 7
Table 3: Equipment Not Supplied ................................................................................................................. 7
Table 4: Rear Connector Pin Functions....................................................................................................... 17
Figure 1: Unit Controls................................................................................................................................ 11
Figure 2: Physical Dimensions .................................................................................................................... 16
Figure 3: P1 Connector Pin Out................................................................................................................... 16
Figure 4: Panel Cut Out ............................................................................................................................... 16
Figure 5: Mounting Tray Assembly Exploded View................................................................................... 16
Figure 6: COM 2000 Basic Wiring Diagram................................................................................................ 18
Figure 7: Interface with AP100 .................................................................................................................... 18

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1SECTION I - GENERAL INFORMATION
1.1 INTRODUCTION
Thank you for purchasing our COM 2000 – VHF Transceiver. Here at Val Avionics Ltd., our core design
philosophy is based on the ease of installation and use. The COM 2000 represents 20 years of refinement in that
process, based on the feedback of customers that have used the COM 760. The COM 2000 takes the original idea of
the COM 760: a simple to use, reliable, and without the frills of other radios; Overhauled and incorporating new
and exciting features.
That design philosophy translates into the ease of installation and simple operation makes the COM 2000 – VHF
Transceiver a communication solution for a wide variety of aircraft panels, from the Homebuilt through heavy
twins. The COM 2000 satisfies the need for compact, fully intergraded, quality radio that can be counted on to
provide years of reliable service.
Before installing and /or using your new COM 2000 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 2000 – VHF
Transceiver. It will also provide equipment limitation information and instructions for continued airworthiness.
1.3 EQUIPMENT DESCRIPTION
The COM 2000 has been designed for simplicity. It is intuitive to install and operate. Using state of the art
technology Val Avionics Ltd. has created a radio that will provide the pilot with simple and easy to operate
communications.
The COM 2000 also has an enhanced display that features both active and standby frequency displays. As an added
feature from the classing COM 760, the unit now features non-volatile memory for both the active and standby
frequencies. No longer do you need a memory power line to maintain your frequencies. Also included is a
revolutionary 15 channel quick access memory (The largest in the industry). The display also incorporates the latest
in high intensity LED technology that provides excellent view ability even in direct sunlight.
The unit’s controls have been designed for simple user interface. The concentric knobs on the right side of the unit
select the standby frequency, with a push button flip-flop to load the standby frequency into the active window. The
inner concentric knob on the left side of the unit selects the volume. The outer left knob controls the squelch
allowing a pilot to quiet noisy channels, or receive weak signals, all from the twist of a knob. The push button on
the left side knob set lets the user select a previously stored channel in memory. A long push of the left button will
power the unit down.
The COM 2000 has one internal receiver. The internal receiver operating 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 2000 has many audio inputs and outputs to facilitate any installation. The unit has 2 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 2000 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: EZN5PRCOM2000

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1.5 SPECIFICATIONS
Table 1: Specifications
SPECIFICATIONS CHARACTERISTICS
Environmental: (RTCA/DO160D)
Minimum Performance Standard (RTCA/DO-186B)
Physical Dimensions:
Height 1.0 inches (2.54 cm)
Width 6.25 inches (15.88 cm)
Depth 9.0 inches (22.86 cm)
Weight: 3.25 pounds (1.5 kg)
Mounting: Panel mounted, no shock mounting required
Temperature Range: -20 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 ±.002%
Selectivity ≥60dB
Audio output 5W to 4ΩSpk 50mW to 600ΩPhone
AGC Characteristics From 10 µV to 200 µV the audio level will not
vary more than 3db.
Transmitter:
Carrier Power 8W nom. RMS
Duty Cycle 50%
Manufacturer’s Model Number COM 2000
Part Number VPN 0800105

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1.6 EQUIPMENT SUPPLIED
Table 2: Equipment Supplied
QTY DESCRIPTION PART NUMBER
1 COM 2000 – 760 Channel Radio 0800105
1 INSTALLATION KIT 651002
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED
Table 3: Equipment Not Supplied
QTY DESCRIPTION PART NUMBER
1 Circuit Breaker 5 amp Potter & Brumsfield W58-2 (Ref
VPN 0331005)
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
None

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2SECTION 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 2000 – VHF Transceiver. Please read this section completely before proceeding with the installation process.
Although the COM 2000 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 time-tested
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 2000 – 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 2000 mounting tray should be rigidly mounted in the avionics stack using the hardware provided in the
installation kit. Ensure that the mounting location will provide easy access and a clear view of the equipment’s front
panel from the pilot’s position. Ensure that the mounting position will provide adequate clearance between the unit
and the associated wire harness and the aircraft controls. Bracing at the rear of the unit should be installed to ensure
rigidity in the panel. Consult FAA Advisory Circular AC 43.13-2A for acceptable practices and techniques.

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2.3.3 Wire Harness Fabrication
Val Avionics Ltd. Strongly recommends the use of a factory fabricated wire harness (VPN 751027) with your new
COM 2000 – VHF Transceiver. Use of the factory fabricated wire harness will ensure proper operation of the COM
2000, 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 2000. A wiring harness can be fabricated in the field. Refer to appendix B of this manual for a complete
wiring diagram. The COM 2000 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
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 2000 Installation
2.3.4.1 Mounting
The COM 2000 is rigidly mounted in the aircrafts avionics stack. Once a location has been selected, a visual
inspection should be made of the area directly behind the panel which, will be occupied by the COM 2000 and
harness assembly for obvious obstructions such as heater ducts, control cables, fuel and oil lines or any other
obstruction. Pay particular attention to the control yoke assembly. It should be moved to the full limit of travel and
verified that sufficient clearance exists prior to beginning installation. Most aircraft instrument panels will already
have existing radio mounting cutouts. If the location you have selected requires that a mounting hole be cut, refer to
Figure 4: Panel Cut Out on Page 16 for the mounting template. Mark and cut the mounting holes as required.
Position the unit’s mounting tray in its upright position, and from the rear of the panel. With the unit held in place,
insert the two of the supplied 6-32 X 3/8” screws from the front and tighten as appropriate. The installing agency
must fabricate and attach rear support brackets to the aircraft structure behind instrument panel as appropriate to
support the rear of the COM 2000. Then, attach these brackets to the provided attachment points on the rear of the
unit with the supplied 6-32 1/4" Screws.
2.3.4.2 Antennas
One antenna is required for the COM 2000 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 2000 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 such as a Val Avionics AP 100. For complete details, refer to the interconnect wiring
diagrams in Appendix B.
2.4 POST INSTALLATION CHECK

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2.4.1 Operational Check
Refer to section three of this manual. Check all functions of the COM 2000 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, FAA form 337, weight and balance computations and other documentations as required.
2.5 LIMITATIONS
There are no known limitations to the operation of the COM 2000. Instructions for Continued Airworthiness and
Return to Service Instructions can be found in Appendix C.

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3SECTION III - OPERATION
3.1 GENERAL INFORMATION
3.1.1 Scope
This section will provide detailed operating instructions for your new COM 2000 – VHF Transceiver. Please read
this section completely to become familiar with all of the features of the unit.
Figure 1: Unit Controls
3.1.2 Display Functions
Upon power up the unit will display initialization codes. After initialization, the unit will display an active and
standby frequency represented by “Axxx.xxx Sxxx.xxx” with the x’s representing the frequency. The first
frequency starting with the “A” is the active frequency, and the “S” is the standby frequency. When the unit is
transmitting the “A” will be replaced with a “T” to represent active transmit. When the unit is selecting a memory
station, the “A” and “S” will no longer be visible and the active portion will contain the seven-character description
and the standby will contain the frequency associated with the description.
3.1.3 User Controls
Refer to Figure 1: Unit Controls. The user controls consist of two sets of concentric rotary knobs. Both sets of
knobs contain three parts, the inner knob (the small one) the outer knob (the large one) and a momentary push button
(the end of the small knob). The left outer inner knob controls the squelch as well as the position of the cursor in
memory edit. The left inner knob controls the volume, allows for selection of a stored memory, and selects
characters in memory edit. The right knobs control the frequency, whether it is the standby frequency or entering
the memory frequency.

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3.1.3.1 Turning the unit on/off
To turn the unit on, momentarily press the left hand inner knob. The unit will go through a short initialization
routine at start up and then begin operation at the same settings that were loaded at the last power down. To turn the
unit off, press and hold the left inner knob for three seconds.
3.1.3.2 Setting Active and Standby Frequency
The knob functions of the right hand set are as follow; the inner knob will change the frequency by KHz or the
numbers to the right of the decimal point (118.125) in 25kHz increments. The outer knob will change the frequency
by MHz or the numbers to the left of the decimal point (119.125) in 1 MHz increments. Only the frequency in the
standby position will change. The standby frequency is displayed at the bottom on the left side of the display and is
identified by the letter “S” to the left of the frequency (S108.15). To load the standby frequency in to the active
position, momentarily press on the inner knob. This will swap the standby frequency with the active frequency. The
active frequency is identified by the letter “A” at the left of the frequency display (A118.125).
3.1.3.3 Changing the Volume
Rotating the left hand inner knob controls the receiver’s audio volume. “VOL” will be displayed in the standby
frequency display and the volume level is indicated by the numeric value after “VOL” (i.e. “VOL 15”). The
volume level can be adjusted from 0to 20 by rotating the left hand inner knob. Normal display operation resumes
after 2 seconds.
3.1.3.4 Changing the Minimum Received Signal Level (Squelch)
Rotating the left hand outer knob controls the receiver’s internal signal strength cutoff (Squelch). “SQL” will be
displayed in the standby frequency display and the volume level is indicated by the numeric value after “SQL” (i.e.
“SQL 15”). The squelch level can be adjusted from OFF to 20 by rotating the left hand inner knob. Normal
display operation resumes after 2 seconds.
3.1.3.5 Selecting a Stored Memory Station
A quick push of the left hand knob enters the stored station retrieval. If no memory stations are available, the
display will show “NO MEM” and return to normal operation. Rotating the inner left hand knob scrolls through the
previously entered memory stations. In the left side (previously the active display) the pre-programmed label will
be shown, and the right side (previously the standby display) will show the associated frequency. Once the desired
frequency is displayed, a quick push of the left hand knob will cause the selected frequency to be loaded into the
Standby window and the unit will return to normal operation. To exit without selecting a memory frequency, just
wait 5 seconds without twisting any knob and the display will return to normal, or push the right hand knob to exit
instantly.
3.1.3.6 Entering / Editing / Deleting a Stored Memory Station
Val Avionics does not recommend entering or editing stored frequencies in flight. Doing so can be a distraction to
the pilot.

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3.1.3.6.1 Selecting a stored frequency to be created / edited /deleted
By pushing both left and right buttons, the unit will enter the stored frequency edit select mode. If there are no
frequencies entered, or the unit is selecting an open memory slot, the unit will show no text in the active window,
and the standby will display “<EMPTY>”. When adding a new frequency, rotate the inner left knob until the
display shows ““<EMPTY>”. To edit a currently existing frequency, rotate to the frequency / station label that is to
be edited.
3.1.3.6.2 Creating / Editing a stored frequency
Depress the left hand button to enter the edit mode, which is characterized by a blinking cursor at the leftmost
position of the label text. By rotating the left inner knob, a new character can be selected for the memory location.
By rotating the left outer knob, the position of the cursor can be changed. Once the label has been entered, rotating
the right knobs will allow for the frequency to be selected. When the data is entered as desired, pressing the left
hand button will exit the edit mode and return to the previous state. If desired, additional frequencies can be edited
or added by repeating the above steps.
3.1.3.6.3 Deleting a Stored frequency
Once the undesired frequency has been selected (see 3.1.3.6.1), press the right hand knob. A confirmation will
appear in the Standby window, rotate the left hand inner knob to select “Y”, and press the right hand knob to
confirm. This deletes the stored information.
3.1.3.6.4 Exiting the stored frequency editing functions
To exit and return to normal operation, pressing both buttons will return to normal operation.
3.2 System Configuration
3.2.1 Accessing Setup Functions
During startup, the unit’s setup can be assessed by pressing both buttons simultaneously until the unit shows an
active frequency and “MicG xx”. In this mode, the Microphone Gain and Sidetone values can be configured. In
this mode, the unit will transmit and receive any frequency that is located in the active window and the frequency
knobs (right hand inner and outer) will directly control the active frequency. The left hand inner knob adjusts the
Microphone gain, and the left hand outer knob adjusts the Sidetone. To exit this mode and resume normal
operation, press both buttons simultaneously.

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4SECTION IV - WARRANTY AND SERVICE
4.1 LIMITED WARRANTY
The equipment delivered with this Standard Factory Warranty is manufactured by Val Avionics, Ltd. and is
guaranteed against defective materials and workmanship for one year from date of original retail purchase. Any unit
found to be defective due to material and workmanship during the warranty period will be repaired or replaced at the
sole discretion of Val Avionics Ltd.
Val Avionics, LTD liability under this warranty is limited to servicing, repairing or adjusting any equipment
returned prepaid to the Val Avionics’ factory by express written or verbal authorization for that purpose and to
repair or replace defective parts thereof.
If, upon examination, it is determined that a malfunction has been caused by misuse of the equipment, installation or
operation not in accordance with factory instructions, accident or negligent damage, alterations of any manner, and
repair by other than the factory, the repairs will not be covered under the warranty. In such cases, an estimate will be
submitted for approval before repair is initiated. In most cases, Val avionics, Ltd. will provide 72-hour turn around
on its warranty and repair service. We recommend that contact be made with the FACTORY CUSTOMER
SERVICE DEPARTMENT prior to any unit return and obtain RETURN AUTHORIZATION AND
INSTRUCTIONS. This will provide proper control and expedite service.
Val Avionics, Ltd. reserves the right of continuous product development without obligation to install changes in
previously manufactured products.
Installation of Val Avionics, Ltd. products must conform to methods acceptable by the Federal Aviation
Administration as described in the appropriate Federal Aviation Regulations (FAR’s) and Advisory Circulars
(AC’s).
To ensure proper warranty registration, type or print clearly the application information on the enclosed
PRODUCTS WARRANTY REGISTRATION FORM and return to Val Avionics, Ltd.
4.2 SERVICE
Repair service for the COM 2000 – VHF Transceiver is available at our manufacturing facility. Units in need of
servicing should be returned prepaid to Val Avionics Ltd at the following addresses.
If you are shipping by the US Postal Service address To:
Val Avionics
P.O. Box 13025
Salem, OR 97309
If you are shipping by FedEx, UPS or other shipping company, address to:
Val Avionics
2950 Pringle Road SE
Salem, OR 97302

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5Appendix A – INSTALLATION DRAWINGS AND
CONNECTOR LAYOUT

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Figure 2: Physical Dimensions
Figure 3: P1 Connector Pin Out
(Drawing Not to Scale)
Figure 4: Panel Cut Out
Figure 5: Mounting Tray Assembly Exploded View

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Table 4: Rear Connector Pin Functions (Serial number 20720 to current)
Pin
Function
I/O
1 RS-232 Out Output
2 Aux In 2 Input
3 Speaker Ground
4 Headphone Ground
5 Mic Ground
6 Key Input
7 Main Ground
8 Main Power
9 RS-232 In Input
10 Aux In 1 Input
11 Speaker Output
12 Headphone Output
13 Mic Audio Input
14 Active/Standby Toggle Input
15 NC
Table 5: Rear Connector Pin Functions (Serial number 20500 to 20719)
Pin
Function
I/O
1 RS-232 Out Output
2 Aux In 2 Input
3 Speaker Ground
4 Headphone Ground
5 Mic Ground
6 Key Input
7 Main Ground
8 Main Power
9 RS-232 In Input
10 Aux In 1 Input
11 Speaker Output
12 Headphone Output
13 Mic Audio Input
14 Main Ground
15 Main Power

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6Appendix B – WIRING DIAGRAMS
Figure 6: COM 2000 Basic Wiring Diagram
Figure 7: Interface with AP100

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7Appendix C – Certifications
7.1 TSO Certification:
This device has been tested and found to meet specification of TSO-C169a.

V A L A V I O N I C S L T D
I N S 4 2 9 I N T E G R A T E D N A V I G A T I O N S Y S T E M
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 20 of 31
May 2013
8Appendix D – INSTRUCTIONS FOR CONTINUED
AIRWORTHINESS
8.1 MAINTENANCE INSTRUCTIONS
Maintenance of the COM 2000 – VHF Transceiver is on condition only. No periodic maintenance is required. If
unit is found to be out of calibration, send unit in for service. If unit is removed for service, upon re-installation
perform Post Installation check as described in section 2.4 of this manual.