trig TY96 Installation Manual

01238-00-AD 29 July 2016 Trig Avionics Limited Heriot Watt Research Park Riccarton, Currie EH14 4AP Scotland, UK Copyright Trig Avionics Limited, 2015

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page i CONTENTS 1. PREFACE ....................................................................................................................................... 1 1.1 PURPOSE .................................................................................................................................... 1 1.2 SCOPE ........................................................................................................................................ 1 1.3 CHANGES FROM PREVIOUS ISSUE .............................................................................................. 1 1.4 DOCUMENT CROSS-REFERENCES .............................................................................................. 1 2. INTRODUCTION .......................................................................................................................... 2 2.1 TY96 AND TY97 DESCRIPTION ................................................................................................. 2 2.2 INTERFACES............................................................................................................................... 2 3. TECHNICAL SPECIFICATIONS ............................................................................................... 3 3.1 TY96 VHF RADIO (TRIG PART NUMBER 01226-00-01) ............................................................ 3 3.2 TY97 VHF RADIO (TRIG PART NUMBER 01228-00-01) ............................................................ 3 3.3 PHYSICAL SPECIFICATIONS (IN TRAY) ....................................................................................... 4 3.4 LOW VOLTAGE OPERATION ....................................................................................................... 4 3.5 INSTALLATION APPROVAL......................................................................................................... 4 4. UNIT AND ACCESSORIES SUPPLIED ..................................................................................... 5 4.1 TY96 VHF RADIO ITEMS ........................................................................................................... 5 4.2 TY97 VHF RADIO ITEMS ........................................................................................................... 5 4.3 INSTALLATION KIT .................................................................................................................... 5 4.4 REQUIRED ITEMS ....................................................................................................................... 6 5. INSTALLATION ........................................................................................................................... 7 5.1 UNPACKING AND INSPECTING EQUIPMENT ................................................................................ 7 5.2 INSTALLATION OVERVIEW ........................................................................................................ 7 5.3 COOLING REQUIREMENTS ......................................................................................................... 8 5.4 ELECTRICAL CONNECTIONS ...................................................................................................... 8 5.4.1 Orientation Diagram ........................................................................................................ 9 5.4.2 D Connector Crimp Terminals ......................................................................................... 9 5.4.3 Power and Ground Wiring ............................................................................................. 10 5.4.4 Stereo Wiring Considerations ......................................................................................... 10 5.4.5 Mono Wiring Considerations.......................................................................................... 10 5.4.6 Audio Wiring ................................................................................................................... 10 5.4.7 Example Wire Harness ................................................................................................... 12 5.5 ANTENNA INSTALLATION ........................................................................................................ 12 5.5.1 Antenna Ground Plane ................................................................................................... 13 5.5.2 Antenna Cable ................................................................................................................ 13 5.5.3 BNC Connection ............................................................................................................. 13 5.6 INTERFACE DETAILS ................................................................................................................ 14 5.6.1 Speaker Output ............................................................................................................... 14 5.6.2 Headphone Outputs ........................................................................................................ 14

29 July 2016 01238-00 Issue AD ______________________ Page ii Trig Avionics Limited 5.6.3 Audio Output ................................................................................................................... 14 5.6.4 Transmit Interlock .......................................................................................................... 14 5.6.5 Lighting Bus Input .......................................................................................................... 14 5.6.6 PTT1/2 Key Input ............................................................................................................ 14 5.6.7 Intercom Key Input ......................................................................................................... 14 5.6.8 Auxiliary Audio Input ..................................................................................................... 15 5.6.9 Music Audio Input........................................................................................................... 15 5.6.10 Microphone Input ........................................................................................................... 15 5.6.11 RS232 Input/Output ........................................................................................................ 15 5.6.12 Remote Flip-Flop ............................................................................................................ 15 5.6.13 Power Input .................................................................................................................... 15 5.6.14 Ground Returns .............................................................................................................. 15 6. INSTALLATION SETUP AND TEST ....................................................................................... 16 6.1 INITIAL POWER ON .................................................................................................................. 16 6.2 CONFIGURATION ITEMS ........................................................................................................... 16 6.2.1 Intercom Volume ............................................................................................................. 16 6.2.2 Intercom Squelch ............................................................................................................ 16 6.2.3 Music Volume ................................................................................................................. 16 6.2.4 Music Muting .................................................................................................................. 16 6.2.5 Frequency Step Size ........................................................................................................ 17 6.2.6 Auxiliary Input Volume ................................................................................................... 17 6.2.7 Auxiliary Input Muting ................................................................................................... 17 6.2.8 Sidetone Volume ............................................................................................................. 17 6.2.9 Receiver Squelch Offset .................................................................................................. 17 6.2.10 Audio Test Tones ............................................................................................................ 17 6.2.11 Microphone gain adjustment .......................................................................................... 17 6.2.12 LCD Dim Point ............................................................................................................... 17 6.2.13 LCD Brightness Curve .................................................................................................... 18 6.2.14 Single PTT Mode ............................................................................................................ 18 7. POST INSTALLATION CHECKS ............................................................................................ 19 8. NORMAL OPERATION ............................................................................................................. 20 8.1 OVERVIEW .............................................................................................................................. 20 8.2 DISPLAY .................................................................................................................................. 20 8.3 ON/OFF VOLUME KNOB .......................................................................................................... 20 8.4 TUNING KNOBS ....................................................................................................................... 20 8.5 FLIP-FLOP BUTTON .................................................................................................................. 20 8.6 MON BUTTON......................................................................................................................... 20 8.7 MEM BUTTON ........................................................................................................................ 21 8.8 PLAY BUTTON ....................................................................................................................... 21

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page iii 8.9 EMER BUTTON ....................................................................................................................... 21 8.10 SAVING AND LOADING THE FREQUENCY DATABASE ............................................................... 21 8.11 GENERAL LOW TEMPERATURE OPERATION ............................................................................ 21 8.12 WARNING MESSAGES .............................................................................................................. 21 8.13 FAULT ANNUNCIATION ........................................................................................................... 21 9. CONTINUED AIRWORTHINESS ............................................................................................ 23 9.1 CLEANING THE FRONT PANEL ................................................................................................. 23 10. LIMITED WARRANTY.......................................................................................................... 24 11. ENVIRONMENTAL QUALIFICATION FORMS ............................................................... 25 12. INSTALLATION DRAWINGS .............................................................................................. 27 13. WIRING DIAGRAMS ............................................................................................................. 29 14. USB FILE FORMAT ............................................................................................................... 35 14.1 USB COMPATIBILITY .............................................................................................................. 36

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 1 1. Preface 1.1 Purpose This manual describes the physical and electrical characteristics and the installation requirements for a TY96 or TY97 VHF radio. 1.2 Scope This Manual applies to the installation of the TY96 and TY97 VHF radio. At the publication date of this manual the software version identifier for the TY96/TY97 is 1.1 and the FPGA version identifier is 1.1. The software and FPGA versions are subject to change without notice. 1.3 Changes from Previous Issue Correction to KY196/197 Diagram 5, Section 13.0. Aircraft power previously pointed to Pin 11 and 12 RS232 input, corrected to Pin 13 and 25. Corrected Aircraft Ground to Pin 17 and 9. 1.4 Document Cross-References 01239-00 TY96/TY97 VHF Radio Operating Manual AB ETSO 2C169a VHF Radio communication receiving equipment operating within the radio frequency range 117.875 – 137 MHz EASA TSO C169a Minimum Operational Performance standards for Airborne Radio Communications equipment standards FAA ETSO 2C128 Devices that prevent blocked channels used in two-way radio communications due to unintentional transmissions EASA TSO C128a Equipment that prevents blocked channels used in two-way radio communications due to unintentional transmissions FAA

29 July 2016 01238-00 Issue AD ______________________ Page 2 Trig Avionics Limited 2. Introduction 2.1 TY96 and TY97 Description The TY96 and TY97 VHF radio systems are ED-23C compliant class C (25 kHz offset carrier) and class H1 and H2 (8.33 kHz offset carrier) VHF radios. The TY96 has a nominal power output of 10 watts, and meets the power output requirements for Class 3 and Class 5. The TY97 has a nominal power output of 16 watts, and meets the power output requirements for Class 3 and Class 5. The TY96 and TY97 are certified to ETSO 2C169a, 2C128a, TSO C169a and TSO C128a. The TY96 can be powered from either a 14 volt nominal or 28 volt nominal DC power supply with no configuration changes required. The TY97 requires a 28 volt nominal DC power supply. 2.2 Interfaces At the rear, the VHF radio unit has a 25 way D-type connector and single antenna connector for blind mating with the corresponding connectors in the mounting tray. The 25 way D-type interface provides the following services: INPUTS Power input The TY96 operates on 11 to 33 volts DC. The TY97 operates on 22 to 33 volts DC. Lighting bus input Connects to the aircraft lighting bus and is used to adjust the switch lighting intensity. Serial input An optional input to allow preloading of frequencies, generally from a GPS. Push-to-talk inputs There are two push to talk inputs corresponding to the two microphones. For backward compatibility with older installations both microphones can optionally be gated by a single PTT input. External flip-flop input An optional keyswitch input to enable remote transfer of primary and secondary frequencies Intercom keyswitch An optional input to allow the intercom to be switch controlled. Microphone inputs There are two microphone inputs, suitable for conventional aircraft microphones. Auxiliary audio input A single connection to allow audio annunciators or ident tones to be routed to the headphones and speaker. Music audio input A two channel music input to allow connection of a stereo audio signal of 1.5Vrms into a 600 ohms load. Audio is routed to the headphones only. OUTPUTS Speaker output A speaker output suitable for a cabin speaker with impedance of 4 ohms or greater. Headphone outputs Two stereo headphone outputs suitable for conventional aircraft headsets with impedance in the region of 150 – 600 ohms. Mono Audio output A mono audio output designed to connect to an aircraft audio panel with an impedance of 600 ohms.

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 3 3. Technical Specifications 3.1 TY96 VHF Radio (Trig Part Number 01226-00-01) Specification Characteristics Compliance ETSO 2C169a Class C, E, H1, H2, 4, 6, ETSO 2C128, TSO C169a Class C, E, 4, 6, TSO C128a FCC Identification VZI01228 Applicable documents EUROCAE ED-23C, EUROCAE ED-67, EUROCAE ED- 14F (RTCA DO-160F), RTCA DO-186B, RTCA DO-207 Software ED-12B (RTCA DO-178B) Level B Power Requirements 11 – 33 volts DC. Typical 6.3 watts @ 14 volts. Altitude 55,000 feet Humidity 95% @ +50C for 6 hours; 85% @ +38C for 16 hours. Tested to Category A in DO-160G Operating Temperature -20C to +55C Transmitter Frequency 118.000 MHz to 136.992 MHz; 760 channels at 25 kHz spacing, 2280 channels at 8.33 kHz spacing. Transmitter Power 10 watts nominal carrier power Transmitter Modulation 5K6 A3E Stuck-mic timeout 35 seconds Transmitter Duty Cycle 100% transmit is possible (subject to stuck mic timeout) Receiver Frequency 118.000 MHz to 136.992 MHz; 760 channels at 25 kHz spacing, 2280 channels at 8.33 kHz spacing. Receiver Sensitivity < 5uV for 6 dB SINAD AGC Characteristic < 6dB variation 5 uV to 100 mV EMF 3.2 TY97 VHF Radio (Trig Part Number 01228-00-01) Specification Characteristics Compliance ETSO 2C169a Class C, E, H1, H2, 3, 5, ETSO 2C128, TSO C169a Class C, E, 3, 5, TSO C128a FCC Identification VZI01228 Applicable documents EUROCAE ED-23C, EUROCAE ED-67, EUROCAE ED- 14F (RTCA DO-160F), RTCA DO-186B, RTCA DO-207 Software ED-12B (RTCA DO-178B) Level B Power Requirements 22 – 33 volts DC. Typical 6.3 watts @ 28 volts. Altitude 55,000 feet Humidity 95% @ +50C for 6 hours; 85% @ +38C for 16 hours. Tested to Category A in DO-160G Operating Temperature -20C to +55C Transmitter Frequency 118.000 MHz to 136.992 MHz; 760 channels at 25 kHz spacing, 2280 channels at 8.33 kHz spacing.

29 July 2016 01238-00 Issue AD ______________________ Page 4 Trig Avionics Limited Transmitter Power 16 watts nominal carrier power Transmitter Modulation 5K6 A3E Stuck-mic timeout 35 seconds Transmitter Duty Cycle 25% Receiver Frequency 118.000 MHz to 136.992 MHz; 760 channels at 25 kHz spacing, 2280 channels at 8.33 kHz spacing. Receiver Sensitivity < 5uV for 6 dB SINAD AGC Characteristic < 6dB variation 5 uV to 100 mV EMF 3.3 Physical Specifications (in Tray) The TY96 and TY97 are the same size and weight. Specification Characteristics Height 33 mm (1.30”) Width 159 mm (6.25”) Length 231 mm (9.1”) behind the panel 273 mm (10.77”) overall Weight 2.33lbs. (1.06Kg) 3.4 Low Voltage Operation Normal operating voltage for the TY96 is any voltage between 11 and 33 volts, whilst normal operating voltage for the TY97 is any voltage between 22 and 33 volts. At these voltages all functions behave normally, and transmitter power meets the applicable Class requirements of ED-23C. The radio will continue to operate at a lower voltage than these ranges. As the available voltage falls, the transmitter output power will be reduced, and at 9 volts the nominal transmitter power will be approximately 2.5 watts. The transmitter will be inhibited below 8 volts. The receiver also works below the nominal voltage. All receiver functions will work normally, but as a safety feature to preserve battery power in an emergency, at 10 volts or below the available speaker volume will reduce. In addition a warning message, “Low Volts”, will be displayed on the screen when the bus voltage falls below 10 volts in a TY96, or 18 volts in a TY97. 3.5 Installation Approval The conditions and tests required for the TSO approval of the TY96 and TY97 VHF radios are minimum performance standards. It is the responsibility of those installing this VHF radio on or within a specific type or class of aircraft to determine that the aircraft operating conditions are within the TSO standards. The VHF radio may be installed only if further evaluation by the user/installer documents an acceptable installation that is approved by the appropriate airworthiness authority.

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 5 4. Unit and Accessories supplied 4.1 TY96 VHF radio Items The TY96 VHF radio includes the following items: Unit Description Qty Part Number TY96 VHF Radio 1 01226-00-01 TY96/TY97 Installation Kit 1 01472-00 TY96/TY97 Mounting Tray 1 01368-00 TY96/TY97 Pilots Operating Handbook 1 01239-00 4.2 TY97 VHF radio Items The TY97 VHF radio includes the following items: Unit Description Qty Part Number TY97 VHF Radio 1 01228-00-01 TY96/TY97 Installation Kit 1 01472-00 TY96/TY97 Mounting Tray 1 01368-00 TY96/TY97 Pilots Operating Handbook 1 01239-00 4.3 Installation Kit The TY96/TY97 installation kit includes the following items: Unit Description Qty Part Number Connector Mounting Plate 1 01369-00 Connector Standard Mount 25 Way D receptacle to M24308 1 00866-00 Crimp Socket Contact, Wire size 20-24 AWG 25 00730-00 D-Sub Shell 1 01440-00 D-Sub Shell Clamp 1 01441-00 D-Sub Shell Cover 1 01442-00 BNC Female to Blind Mate Adaptor 1 01410-00 Washer, 7/16", Plain, Stainless Steel 1 00241-00 Circlip, 7/16", External, Stainless Steel 1 00242-00 Washer, 7/16", Wave, Stainless Steel 1 00317-00 Screw, Pozidrive, Csk Head, M2.5 x 5mm, Pre Patch 2 01020-00 Screw, Pozidrive, Pan Head, M2.5 x 5mm, Pre Patch 6 01021-00 Screw, Pozidrive, Pan Head, M2.5 x 8mm, Pre Patch 4 01024-00 Screw, Philips Csk head, 4-40 UNC x 0.312", Pre Patch 2 01397-00 Washer, M2.5 Rect Sect, Spring 6 01473-00 User Label Sheet USB Flash Drive 1 1 01412-00 01646-00

29 July 2016 01238-00 Issue AD ______________________ Page 6 Trig Avionics Limited 4.4 Required Items Additional items you will require, but which are not in the TY96/TY97 package, include:  Antenna and fixing hardware. The TY96 or TY97 are compatible with any standard 50 ohm vertically polarised antenna with a VSWR better than 2.5:1.  Cables. You need to supply and fabricate all required cables. Guidance on cable types is given in section 5.  Fixings. To secure the VHF radio tray to the airframe you will need at least 6 flat head screws and self-locking nuts. If the aircraft does not have existing mounting provisions you may need to fabricate additional brackets to support the VHF radio tray.

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 7 5. Installation 5.1 Unpacking and Inspecting Equipment Carefully unpack the VHF radio and make a visual inspection of the unit for evidence of any damage incurred during shipment. If the unit is damaged, notify the shipping company to file a claim for the damage. To justify your claim, save the original shipping container and all packaging materials. 5.2 Installation Overview The TY96/TY97 VHF Radio must be mounted rigidly in the aircraft panel. The following installation procedure should be followed, remembering to allow adequate space for installation of cables and connectors.  Select a position in the panel that is not too close to any high external heat source. (The radio is not a significant heat source itself and does not need to be kept away from other devices for this reason).  Prepare the instrument panel to ensure the radio mounting tray can be secured using the mounting holes in the tray. The front edge of the mounting tray should sit flush with the instrument panel.  It is advisable to complete the 25 way D-sub cable harness at this point before securing the mounting tray into the aircraft. The cable harness and antenna connector can then be secured to the removable mounting tray plate. Refer to section 5.4 for cable harness details and section 5.5 for fitting the antenna connector.  Route the mounting tray plate and cable harness into position, avoiding sharp bends and placing the cables too near to the aircraft control cables.  Attach the VHF antenna coax using a BNC connector.  Clip the mounting tray plate into the mounting tray and secure with M2.5 pan head screws. Note: The mounting tray plate clips into the mounting tray to aid assembly but must be secured using screws. The clips alone are not strong enough to retain the back plate when fitting the radio.  Secure the mounting tray to the instrument panel via the six (6) mounting holes in the tray. It is important that the tray is supported at the rear with at least two mounting holes as well as the front four.  Check that the VHF radio locking mechanism is correctly oriented by unscrewing the locking screw using a 3/32” Allen key. M2.5 back plate securing

29 July 2016 01238-00 Issue AD ______________________ Page 8 Trig Avionics Limited  Slide the VHF radio into the secured mounting tray.  Lock the VHF radio into the mounting tray using a 3/32” Allen key, taking care not to over tighten the locking screw. 5.3 Cooling Requirements The VHF radio meets all applicable ETSO requirements without forced air-cooling. Reasonable air circulation should be provided. Attention should be given to the incorporation of cooling provisions to limit the maximum operating temperature if the TY96 is installed in close proximity to other avionics. The reliability of equipment operating in close proximity in an avionics bay can be degraded if adequate cooling is not provided. 5.4 Electrical Connections The TY96 has single 25 way D-type connector which is used for all the data and audio signals. A single coaxial BNC is used to connect the antenna. Pin Signal Direction 1 Speaker Out Output 2 Headphone 1 Left Out Output 3 Headphone 1 Right Out Output 4 Ground - 5 Headphone 2 Left Out Output 6 Headphone 2 Right Out Output 7 Audio Out Output 8 Lighting Bus In Input 9 Ground - 10 Transmit Interlock In Input 11 RS232 Out Output 12 RS232 In Input 13 Aircraft Power (DC) - 14 Aux Audio Input 15 Music Audio Left In Input 16 Music Audio Right In Input 17 Ground - 18 Microphone 1 Input 19 Microphone 2 Input 20 Reserved Input 21 Remote Flip-Flop Input 22 Intercom Key Input 23 PTT1 Input 24 PTT2 Input 25 Aircraft Power (DC) -

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 9 Figure 1: Mounting Tray 25 D-type Primary Connector 5.4.1 Orientation Diagram To assist in connector orientation, the following example shows a typical set of connections. This diagram shows the expected connector positions when viewed from the radio side of the tray, looking into the tray from the front. 5.4.2 D Connector Crimp Terminals The 25 way connector supplied with the TY96 installation kit are MIL standard versions of the popular sub miniature D type connector family, and use individual crimp terminals and a receptacle. The MIL specification for this family of connectors is MIL-C-24308. We supply crimp terminals because these are more reliable than soldered connections, and are easier to assemble in-situ in an aircraft, where soldering is impractical. They also allow individual wires to be removed and replaced in a receptacle without replacing the whole connector. The socket contacts used in the connectors conform to MIL part number M39029/63-368, and are also suitable for wire gauges from 20 to 24 AWG. These contacts are widely used in avionics installation, and there are many tools available on the market that will reliably crimp them to the wiring. Because the contacts are a MIL standard, there is also a MIL standard for the crimp tool, although other proprietary solutions are available. 25 13 14 1 Power In 25 13 14 1 PTT 1 Intercom Key enabled when connected to ground Mic 1 Mic 2 Ground Left Right Headphone 1 Left Right Headphone 2 Ground Antenna

29 July 2016 01238-00 Issue AD ______________________ Page 10 Trig Avionics Limited The MIL reference for the basic style of hand tool is M22520/2-01. This style of tool can crimp many different contact types, and relies on interchangeable "positioners" to hold the actual contact in use. The MIL reference for the positioner that you need for the crimps we supply is M22520/2-08. Any tool that complies with these references can be used to crimp these contacts. One of the most popular vendors of these small hand tools is Daniels Manufacturing Corporation (see www.dmctools.com). Their AFM8 hand tool complies with M22520/2-01, and their K13-1 positioner is M22520/2-08 compliant, so the combination will crimp the supplied connectors. Once crimped, the contacts should be slotted into the rear of the connector shell. Push the contact in until the retaining tab clicks into place. Tug gently to confirm the contact is locked in place. 5.4.3 Power and Ground Wiring The peak current consumption of the TY96 on transmit exceeds the current capability of a single pin on the connector. Both power inputs must be wired, and at least two ground returns must be wired. This is particularly important when the VHF radio is mounted on a non-conducting surface, such as a composite structure. Use 20 AWG wire for the power connection wires. 5.4.4 Stereo Wiring Considerations The TY96 uses stereo for the headphone connections. It is important to connect the left and right audio signals correctly to ensure the intercom and dual watch audio is correctly routed to the headphones. A typical general aviation headset will have the left channel on the tip and the right channel on the ring of the phones jack. Intercom Audio The intercom will route MIC 1 audio to the centre of HEADPHONES 1 and to the left side of HEADPHONES 2. The opposite is true for MIC 2 which will route audio to the centre of HEADPHONES 2 and to the right side of HEADPHONES 1. If the stereo wiring is incorrect then the audio will be routed to the wrong side of the headphones. Dual Watch Audio When using the dual watch function, the TY96 will route audio received on the primary channel to the centre of both headphones. Audio received on the secondary channel will be quieter and routed to the rear-right of the headphones. 5.4.5 Mono Wiring Considerations The TY96 audio wiring can be connected to suit a mono installation. To do this, you must short the left and right signal wires together at the TY96 end of the loom. This will have the effect of placing all audio in the centre of the connected headphones. This is may be relevant when replacing a previous mono VHF radio such as the Garmin SL40 or Bendix/King KY196A/197A and you wish to utilise the existing wiring and mono headset jacks. 5.4.6 Audio Wiring All wires carrying audio signals should be wired using 22 AWG shielded cable to MIL-C-27500 or Sleeve (audio ground) Ring (right audio) Tip (left audio)

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 11 equivalent. Mono audio signals should use 2 core shielded cable and stereo signals should use 3 core shielded cable. One core wire within each shielded cable should be connected to ground; the cable shield should not be used to carry the audio ground signals. The cable shield should be connected to ground at the TY96 end only. Do not connect the shield at both ends of the cable to avoid a ground loop which can increase interference effects. When terminating shielded cable it is recommended to cut away the cable insulation to expose the cable shield. At the end of the cable, strip the insulation and shield back at least 90mm. Trim the audio signal wires back to 30mm, keeping the signal ground wire at least 90mm in length. The audio signal wires can be terminated with D connector socket contacts that conform to MIL part number M39029/63-368. Using a solder sleeve, attach some flat copper braid to the exposed shield and terminate with a crimp ring. Repeat for all shielded cable and connect the crimp ring terminals to the ground points on the mounting tray back plate. Connect the cable shields to the mounting tray back plate along with the signal ground connections. Secure the ring crimps to the back plate ground lugs using M2.5 screws and spring washers. 15mm 25mm 30mm 60mm Strip the insulation to expose the cable shield Audio signal wires Signal ground wire 90mm Solder Sleeve Secure shield connection to the mounting tray back plate Ground lugs (x6)

29 July 2016 01238-00 Issue AD ______________________ Page 12 Trig Avionics Limited The signal ground wires from all the shielded cables should be grouped together and terminated with another ring crimp along with a ground fly lead that will be used to connect to a ground pin on the 25 way connector. The ground fly lead wire size should be 20 AWG and terminated with another D connector socket contact. 5.4.7 Example Wire Harness Below is a typical example of the TY96 wire connections, shown without the D-Sub backshell. 5.5 Antenna Installation The VHF antenna should be installed according to the manufacturer’s instructions. The following considerations should be taken into account when siting the Antenna.  The antenna should be well removed from any projections, the engine(s) and propeller(s). It should also be well removed from landing gear doors, access doors or others openings which will break the ground plane for the antenna.  Avoid mounting the antenna within 2 feet of a GPS antenna, and as far as practical from any ELT antenna.  If the simultaneous use of two radio units is required then each antenna should be as far apart as practicable for maximum isolation. We would recommend placing one antenna on top and one on the bottom of the airframe. The Transmit Interlock function should also be used in this Group signal grounds together and connect to mounting tray back plate. Fly lead to ground pin on the 25 way connector Wire harness viewed from top Wire harness viewed from bottom Shield connections Signal ground connections Shield connections Signal ground connections

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 13 case (section 5.6.4).  Where practical, plan the antenna location to keep the cable lengths as short as possible and avoid sharp bends in the cable to minimise the VSWR. Electrical connection to the antenna should be protected to avoid loss of efficiency as a result of the presence of liquids or moisture. All antenna feeders shall be installed in such a way that a minimum of RF energy is radiated inside the aircraft. 5.5.1 Antenna Ground Plane When a conventional aircraft monopole antenna is used it relies on a ground plane for correct behaviour. For ideal performance the ground plane should be as large as practical; in any case at least 1 metre square. In a metal skinned aircraft this is usually easy to accomplish, but is more difficult in a composite or fabric skinned aircraft. In these cases a metallic ground plane should be fabricated and fitted under the antenna. The thickness of the material used to construct the ground plane is not critical, providing it is sufficiently conductive. A variety of proprietary mesh and grid solutions are available. Heavyweight cooking foil meets the technical requirements, but obviously needs to be properly supported. 5.5.2 Antenna Cable Use a high quality 50 ohm coaxial cable, such as RG400 or RG142B. When routing the cable, ensure that you:  Route the cable away from sources of heat.  Route the cable away from potential interference sources such as ignition wiring, 400Hz generators, fluorescent lighting and electric motors.  Allow a minimum separation of 300mm (12 inches) from any ADF or transponder antenna cables.  Keep the cable run as short as possible.  Avoid routing the cable round tight bends.  Avoid kinking the cable even temporarily during installation.  Secure the cable so that it cannot interfere with other systems.  The antenna cable should be terminated with BNC type male connector 5.5.3 BNC Connection Feed the supplied blind mate BNC connector to the TY96 mounting tray back plate and attach the washer combination in the following order:  Wave washer (p/n 00317-00).  Plain washer (p/n 00241-00). 002 39- 00

29 July 2016 01238-00 Issue AD ______________________ Page 14 Trig Avionics Limited  Circlip washer (p/n 00242-00). The Circlip washer should be fitted with a set of Circlip pliers. 5.6 Interface Details 5.6.1 Speaker Output The speaker output can drive a 4 ohm or greater cabin speaker. The speaker should be rated at 4 watts or higher. 5.6.2 Headphone Outputs The TY96 can drive two sets of headphones. The output is stereo and is intended for headsets of 150 to 600 ohm impedance. The radio also works correctly when a mono headset is plugged into a stereo socket, or can be wired for mono headphones sockets. 5.6.3 Audio Output This output is used to drive a conventional 600 ohm audio panel input. 5.6.4 Transmit Interlock When two VHF radios are mounted in an aircraft the transmit interlock input of one can be connected to the transmit PTT key of the other radio. When the other radio transmitter is keyed, the squelch threshold of this radio is increased to minimise break-through between one radio and the other. Note: To improve the performance when using two radios, the antennas should be as far apart as practical – for example on the top and bottom of the fuselage. 5.6.5 Lighting Bus Input The TY96 will adjust the brightness of the front panel switch lighting according to the voltage on the lighting bus input. The lighting bus voltage is automatically adapted to the aircraft bus voltage. If no lighting bus input is detected, the radio will automatically control the front panel lighting based on the ambient light sensor. 5.6.6 PTT1/2 Key Input Two Push to Talk (PTT) inputs are provided, which correspond to the two microphone inputs. Only the corresponding microphone input is routed to the transmitter when the key switch is pressed. The PTT1 input has priority over the PTT2 input – if the PTT1 switch is closed when the PTT2 switch is closed, the input from Microphone 1 is routed to the transmitter. The inputs are active low, and will be asserted when the voltage to ground is pulled below approximately 4 volts. The input should be connected to a momentary switch on the yoke or on the microphone. For retrofit installations where a single PTT input is shared for both microphone inputs, Single PTT mode can be enabled. See section 6.2.14 for more details. 5.6.7 Intercom Key Input The intercom key switch input allows the intercom function to be selected using a remote switch, or permanently enabled by grounding the pin inside the connector. The input is active low, and will be asserted when the voltage to ground is pulled below approximately 4 volts. If this pin is tied low, the intercom function depends on the vox operated squelch. Note: It is possible to combine both the key switch and the vox activation, or to use only one. To use only the switch, wire the switch to the intercom key input and select the vox squelch to

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 15 the lowest setting during configuration. To use only the vox, wire the intercom key input to ground, and configure the squelch accordingly. 5.6.8 Auxiliary Audio Input This input is continually routed to the headphone and cabin speaker outputs. It is intended for annunciators and identification tones. 5.6.9 Music Audio Input This is a stereo input which is routed to the both headphone outputs and should be used for connecting an MP3 player or similar device. The music input volume is adjustable and the music mute options can be configured within the setup menu to allow the radio reception or transmission audio to take priority. 5.6.10 Microphone Input Microphone connections should be made using shielded twisted pair cables. The two microphone inputs are identical, and have a nominal sensitivity of 1Vrms to 5Vrms into a 600 ohm load. A 12Vdc bias voltage is supplied by the radio to the microphone inputs to support a preamplifier in the microphone. The microphone gains can be adjusted within the setup menu. 5.6.11 RS232 Input/Output The RS232 input allows certain GPS receivers to preload the standby and active frequencies. The radio understands the Apollo SL40 protocol ($PMRRC) based on NMEA, at a speed of 9600 bps, and responds to message types 1, 4, 5 and 6. 5.6.12 Remote Flip-Flop This input is used to allow remote activation of the frequency change, and is typically used in a helicopter. The input is active low, and will be asserted when the voltage to ground is pulled below approximately 4 volts. 5.6.13 Power Input The TY96 power supply can be 11-33 volts DC; no voltage adjustment is required. Use a 5 Amp circuit breaker for power supply protection to the TY96. The TY97 requires 22-33 volts DC; again use a 5 amp circuit breaker. The peak current consumption on transmit exceeds the current capability of a single pin on the connector. Both power inputs must be wired, and at least two ground returns must be wired. Use 20 AWG wire for the power connection wires. 5.6.14 Ground Returns There are only 3 ground pins on the 25 way connector, at pins 4, 9 and 17. Two of these ground pins should be used for the power input leaving the other ground pin for the audio grounds. Audio grounds should be connected together with a fly lead connected to the remaining ground pin. Refer section 5.4 for further wiring considerations.

29 July 2016 01238-00 Issue AD ______________________ Page 16 Trig Avionics Limited 6. Installation Setup and Test 6.1 Initial Power On The TC90 will display a splash screen when the radio is first switched on. The splash screen shows the software versions currently loaded and what model of radio is connected. 6.2 Configuration Items There are a small number of installation parameters that can be adjusted. Those that are expected to be operated in flight are accessed by pressing and holding the MON button for approximately 2 seconds. Those that are infrequently accessed only appear when a second step is accomplished by pressing and holding the MEM button for 2 seconds after the settings screen is displayed. The individual setup items are selected using the large tuning knob, and adjusted using the small tuning knob. Pressing MON again will exit from the setup mode. The base set of parameters are:  Intercom Volume  Intercom Squelch  Music Volume  Music Muting The items accessed on the second level of menu are:  Frequency Step Size  Auxiliary Input Volume  Auxiliary Input Muting  Sidetone Volume  Receiver Squelch Offset  Microphone gain adjustment  Display Dim and Brightness settings  Single PTT configuration  Audio Test Tones 6.2.1 Intercom Volume This setting controls the volume of the built-in intercom. 6.2.2 Intercom Squelch The intercom includes a voice activated squelch control to limit the background noise heard over the intercom. Increasing the squelch level requires a louder microphone input to turn on the intercom. 6.2.3 Music Volume This setting controls the volume of the stereo music input. The listening level is controlled by this setting, and also by the volume controls on the music source. Set the music volume so that a reasonable level is achieved with the source set to a typical playback setting. 6.2.4 Music Muting Turn this feature ON if the music should mute during radio reception. Turning this feature off leaves the music playing during reception. The music always mutes when the radio is transmitting.

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 17 6.2.5 Frequency Step Size The TY96/TY97 is capable of operating in both an 8.33 kHz and 25 kHz environment. If 8.33 kHz operation is not required, the 8.33 kHz channels can be disabled to simplify the tuning operation. Note: 8.33 kHz operation is required in some European airspace. 6.2.6 Auxiliary Input Volume The auxiliary input is a low-fidelity monophonic input intended for nav radio ident inputs and simple annunciators. This setting controls the relative volume of the auxiliary audio input. 6.2.7 Auxiliary Input Muting This allows the auxiliary input to be muted when the radio is receiving or transmitting speech. Turn this feature ON if the auxiliary input is being used for non-essential services, like an MP3 player. Turn this feature OFF if the auxiliary input is being used for essential services like annunciators or traffic alerts. 6.2.8 Sidetone Volume The audio sidetone is the transmitted audio signal; this setting controls the level of the sidetone in the headphones. 6.2.9 Receiver Squelch Offset The receiver has a factory set nominal squelch point of approximately -95 dBm which should be appropriate for most installations. In some aircraft with noisy electrical environments, such as vintage or experimental aircraft, the factory setting may lead to nuisance squelch breaking. The receiver squelch offset allows the installer to moderately increase the squelch set point. 6.2.10 Audio Test Tones The audio test tones provide a simple way of testing that the installation is correctly wired. The radio has two stereo headphone outputs, a mono line output, and a cabin speaker output. The audio test tone generator sends a sequence of tones to each of those outputs in turn. Use the small right hand knob to scroll through the output choices, and check that each output in turn is correct. The stereo music and intercom functions will appear in the wrong positions if the wiring is incorrect. During the test the volume knob controls the active outputs. 6.2.11 Microphone gain adjustment The factory set microphone adjustment provides a nominal sensitivity of 100 mV RMS which is compatible with most conventional aviation headset microphones. Automatic gain control takes care of variations in speaking voice and variation between different microphones. Microphone adjustment is therefore only required to correct for alternative installation choices. If the installation uses unusually high output microphones, or an audio panel with built-in amplification, the radio input can be overloaded and cause distortion on the transmitted audio. If the microphone output is too low, the transmitted modulation will be low, and may be unreadable. Each microphone input can be adjusted separately. The microphone gain is adjusted in steps of 1 dB. The left end stop on the range corresponds to a nominal sensitivity of 200 mV; the right end stop corresponds to a nominal sensitivity of 6 mV. The factory original setting is 6 steps from the left of the range. 6.2.12 LCD Dim Point The LCD backlight illumination is controlled automatically by the ambient light sensor. Depending on the amount of light spill in the cockpit, and the brightness of other adjacent avionics displays, it may be

29 July 2016 01238-00 Issue AD ______________________ Page 18 Trig Avionics Limited necessary to adjust the darkest setting of the backlight to best match other equipment and to improve the cockpit appearance at night. Note – it is only practical to do this in pitch darkness, since that is the in-flight environment that you are trying to reproduce. If you are working in a hangar with any other lighting it may be better to leave the setting in the mid-range. 6.2.13 LCD Brightness Curve The actual maximum brightness of the LCD cannot be increased with this control. What it controls is the rate at which the lighting increases in brightness as the ambient light increases. This allows the brightness to be matched to other avionics displays during light level changes as far as possible. 6.2.14 Single PTT Mode In the factory standard configuration pressing PTT1 sends only Mic 1 to the transmitter; PTT2 sends only Mic 2. For a retrofit installation, for example when replacing an SL40 radio, a single PTT is shared between the two microphones. Enabling Single PTT mode means that whenever PTT1 is pressed both Mic 1 and Mic 2 audio is sent to the transmitter.

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 19 7. Post Installation Checks Post installation checks should be carried out in accordance with your certification requirements. These checks should include:  Receiver operation. Tune a local station and check that the reception is clear and understandable.  Transmitter operation and microphone gain adjustment. Contact a local station and check that they are receiving you clearly.  Interference check. Check the radio with other avionics and electrical equipment on the aircraft operating. Check at low, mid and high radio frequencies. There should be no significant interference on reception, and when the TY96/TY97 transmits there should be no adverse effect on any other equipment.  Sidetone adjustment. During the transmit checks, verify the sidetone level is set appropriately.  Intercom adjustment. If the intercom function is being used, set the listening level and squelch appropriately. Note that the squelch is best adjusted in the normal ambient noise environment, for example with the engine(s) running and developing power.

29 July 2016 01238-00 Issue AD ______________________ Page 20 Trig Avionics Limited 8. Normal Operation 8.1 Overview On the front panel is a monochrome LCD display flanked by a rotary volume knob (OFF, and Squelch function) and a dual concentric tuning knob used for frequency entry. 8.2 Display The display shows the active and standby frequencies for the radio, and has icons to indicate the operating modes. An internal database automatically fills in the station identifier for the tuned frequency if it is one of the stored values. The primary frequency is on the left and the standby frequency is on the right hand half of the screen. The TX icon shows that the radio is transmitting. An RX icon shows that the frequency is active and the audio will be heard through the headphone and speaker outputs. The standby frequency will only be received during the MONITOR function which is indicated by a +2 icon when active. The top right hand corner indicates what frequency step size is selected – this determines the resolution of the small tuning knob, and NOT the radio performance, which is determined by the actual channel tuned. The display brightness automatically dims based on ambient light. 8.3 On/Off Volume Knob The left hand knob controls the power to the VHF radio, adjusts the audio volume, and controls the squelch. Turning this knob clockwise will switch on the radio and then increase the volume. Turning anticlockwise will reduce the volume and eventually will click off. Pressing this knob toggles the automatic squelch on and off, which can be used to listen for faint stations and as a simple audio test. 8.4 Tuning Knobs The right hand knobs are used to tune the radio. The large knob adjusts the MHz portion of the standby frequency, and the smaller knob adjusts the kHz portion of the standby frequency. Pressing the end of the small knob changes the channel spacing that the small knob operates through. If the radio is configured for 8.33 kHz operation, the steps toggle between 8.33 kHz channels and 25 kHz channels. If the radio is configured only for 25 kHz operation, the steps toggle between 25 kHz and 50 kHz channels. Changing the step size does not change the behaviour of the radio, only the tuning knob step size – it helps to quickly tune a frequency. 8.5 Flip-flop Button The Flip-flop button swaps the frequency in the standby display at the right of the screen, into the active position, and moves the active frequency to the standby position. 8.6 MON Button The TY96/TY97 includes a dual-frequency listen feature; pressing the MON button toggles this feature on and off.

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 21 When the monitor is active, a +2 icon appears next to the standby frequency, and the radio will scan between the active and standby frequencies listening for transmissions. This is useful in an aircraft with only a single radio, since it allows you, for example, to copy the ATIS whilst maintaining a listening watch on the ATC frequency. 8.7 MEM Button Pressing the MEM button replaces the standby frequency display with the database screen. There are three databases in the radio – a pilot stored list of frequencies, a list of the recently used frequencies, and a list of frequencies transferred from an attached GPS database. In memory mode turning the large tuning knob moves the cursor while turning the small tuning knob changes the highlighted item. 8.8 PLAY Button The VHF radio includes a digital audio recorder. Pressing the PLAY button will automatically replay the previous transmission received from ATC. During playback the PB icon will be displayed on the screen. If a new transmission is received during playback, the playback is cancelled and the live transmission will be heard instead. 8.9 EMER Button The EMER button gives quick access to the standard emergency frequency of 121.5 MHz. As well as selecting 121.5 MHz, pressing the EMER button also mutes the music input and the auxiliary audio input, and if the volume is set to a low level it turns it up. 8.10 Saving and Loading the Frequency Database The frequency database entries you have made can be saved to a USB memory stick, or you can load a database from a USB stick. To load or save to USB, you need to put the USB memory stick into the radio before you switch on. When the radio detects the USB device it will offer to save or load your database. If there are data entries already on the radio you will be offered the choice to replace the whole database, or add entries from the USB stick. Similarly if there is already a database on the USB stick you can either overwrite it or add the radio data to the existing file. See section 14 for more details on the USB operation. To return to normal radio operation remove the USB device and switch the radio off and back on again. In normal radio operation the USB port is powered off. 8.11 General Low Temperature Operation The TY96/TY97 is certified to operate correctly down to -20°C, but at low temperatures the controller display may be impaired. On a cold day you may need to wait for the cockpit to warm up to ensure normal operation. 8.12 Warning Messages If the VHF radio detects a problem, the screen will indicate WARNING and a brief statement of the problem. Depending on the nature of the problem, your VHF radio may not be working properly. Note the message on the screen and pass that information to your avionics maintenance organisation. Warning messages will automatically clear if the problem is corrected. If a warning persists, it can be manually cleared by pressing the flip-flop button twice. 8.13 Fault Annunciation If the VHF radio detects a catastrophic internal failure, the screen will indicate FAULT and a brief statement of the problem. The controller will not respond to button or knob inputs, but the radio may still be working on the last settings prior to the fault indication.

29 July 2016 01238-00 Issue AD ______________________ Page 22 Trig Avionics Limited Some FAULT indications can be recovered by switching the VHF radio off and back on again, although in all cases a FAULT code implies that there is a fault with the VHF radio or the installation. Note the FAULT message shown on the screen and pass that information to your avionics maintenance organisation.

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 23 9. Continued Airworthiness Other than for periodic functional checks required by the regulations, the TY96/TY97 VHF radio has been designed and manufactured to allow “on condition maintenance”. This means that there are no periodic service requirements necessary to maintain continued airworthiness, and no maintenance is required until the equipment does not properly perform its intended function. When service is required, a complete performance test should be accomplished following any repair action. Repairs should only be carried out in accordance with Trig Avionics Limited service procedures. 9.1 Cleaning the Front Panel The plastic body and switches should be cleaned with a soft cotton cloth moistened with clean water. The LCD screen should be lightly cleaned with a lint free cloth taking care not to scratch the surface.

29 July 2016 01238-00 Issue AD ______________________ Page 24 Trig Avionics Limited 10. Limited Warranty Trig Avionics Limited warrants our products to be free from defects in materials and workmanship for a period of two (2) years from the date of installation by an authorised dealer. This warranty covers repair and/or replacement at our option, of any parts found to be defective, provided such defects in our opinion are due to faulty material or workmanship and are not caused by tampering, abuse, or normal wear. All warranties are F.O.B. Trig Avionics Limited Heriot Watt Research Park Riccarton, Edinburgh, EH14 4AP Trig Avionics will not accept or pay for any charges for warranty work performed outside our factory without prior written consent. This warranty applies only to products in normal use. It does not apply to units or circuit boards defective due to improper installation, physical damage, tampering, lightning or other electrical discharge, units with altered serial numbers, or units repaired by unauthorised persons or in violation of Trig Avionics Limited service procedures. Trig Avionics Limited assumes no responsibility for any consequential losses of any nature with respect to any products or services sold, rendered, or delivered.

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 25 11. Environmental Qualification Forms Nomenclature: TY96 VHF Radio Part Number: 01226-00-xx ETSO: 2C169a, 2C128 Manufacturer: Trig Avionics Limited Address: Heriot Watt Research Park, Edinburgh, Scotland, EH14 4AP Conditions DO-160G Description of Conducted Tests Temperature and Altitude 4.0 Equipment tested to Categories: A4, C4 Low temperature ground survival 4.5.1 -55°C Low temperature operating 4.5.2 -20°C High temperature operating 4.5.4 +55°C High temperature short-time operating 4.5.3 +70°C High temperature ground survival 4.5.3 +85°C Loss of Cooling 4.5.5 Cooling air not required (+70°C operating without cooling air) Altitude 4.6.1 55,000 feet Decompression 4.6.2 8,000 to 55,000 feet in 15 seconds Overpressure 4.6.3 -15000 feet Temperature Variation 5.0 Equipment tested to Category C Humidity 6.0 Equipment tested to Category A Operational Shocks 7.2 Equipment tested to Category B Crash Safety 7.3 Equipment tested to Category B Vibration 8.0 Aircraft zone 2; type 3, 4, 5 to category S level M; type 1 (Helicopters) to category U level G Explosion 9.0 Equipment identified as Category X – no test required Waterproofness 10.0 Equipment identified as Category X – no test required Fluids Susceptibility 11.0 Equipment identified as Category X – no test required Sand and Dust 12.0 Equipment identified as Category X – no test required Fungus 13.0 Equipment identified as Category X – no test required Salt Spray 14.0 Equipment identified as Category X – no test required Magnetic Effect 15.0 Equipment tested to Category Z Power Input 16.0 Equipment tested to Category BX Voltage Spike 17.0 Equipment tested to Category B Audio frequency conducted susceptibility 18.0 Equipment tested to Category B Induced signal susceptibility 19.0 Equipment tested to Category AC Radio frequency susceptibility 20.0 Equipment tested to Category TT Radio frequency emission 21.0 Equipment tested to Category B Lightning induced transient susceptibility 22.0 Equipment tested to Category B2H2L2 Lightning direct effects 23.0 Equipment identified as Category X – no test required Icing 24.0 Equipment identified as Category X – no test required Electrostatic Discharge 25.0 Equipment tested to Category A Fire, Flammability 26.0 Equipment identified as Category C

29 July 2016 01238-00 Issue AD ______________________ Page 26 Trig Avionics Limited Nomenclature: TY97 VHF Radio Part Number: 01228-00-xx ETSO: 2C169a, 2C128 Manufacturer: Trig Avionics Limited Address: Heriot Watt Research Park, Edinburgh, Scotland, EH14 4AP Conditions DO-160G Description of Conducted Tests Temperature and Altitude 4.0 Equipment tested to Categories: A4, C4 Low temperature ground survival 4.5.1 -55°C Low temperature operating 4.5.2 -20°C High temperature operating 4.5.4 +55°C High temperature short-time operating 4.5.3 +70°C High temperature ground survival 4.5.3 +85°C Loss of Cooling 4.5.5 Cooling air not required (+70°C operating without cooling air) Altitude 4.6.1 55,000 feet Decompression 4.6.2 8,000 to 55,000 feet in 15 seconds Overpressure 4.6.3 -15000 feet Temperature Variation 5.0 Equipment tested to Category C Humidity 6.0 Equipment tested to Category A Operational Shocks 7.2 Equipment tested to Category B Crash Safety 7.3 Equipment tested to Category B Vibration 8.0 Aircraft zone 2; type 3, 4, 5 to category S level M; type 1 (Helicopters) to category U level G Explosion 9.0 Equipment identified as Category X – no test required Waterproofness 10.0 Equipment identified as Category X – no test required Fluids Susceptibility 11.0 Equipment identified as Category X – no test required Sand and Dust 12.0 Equipment identified as Category X – no test required Fungus 13.0 Equipment identified as Category X – no test required Salt Spray 14.0 Equipment identified as Category X – no test required Magnetic Effect 15.0 Equipment tested to Category Z Power Input 16.0 Equipment tested to Category BX Voltage Spike 17.0 Equipment tested to Category B Audio frequency conducted susceptibility 18.0 Equipment tested to Category B Induced signal susceptibility 19.0 Equipment tested to Category AC Radio frequency susceptibility 20.0 Equipment tested to Category TT Radio frequency emission 21.0 Equipment tested to Category B Lightning induced transient susceptibility 22.0 Equipment tested to Category B2H2L2 Lightning direct effects 23.0 Equipment identified as Category X – no test required Icing 24.0 Equipment identified as Category X – no test required Electrostatic Discharge 25.0 Equipment tested to Category A Fire, Flammability 26.0 Equipment identified as Category C

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 27 12. Installation Drawings Dimensions in (--) are millimetres, dimensions in [--] are inches. 158.90 mm CUT OUT DIMENSIONS FOR BEHIND AIRCRAFT PANEL MOUNT 31.50 mm 160.30 mm CUT OUT DIMENSIONS FOR FRONT AIRCRAFT PANEL MOUNT 33.80 mm

29 July 2016 01238-00 Issue AD ______________________ Page 28 Trig Avionics Limited ITEM DESCRIPTION QTY 1 TY96 VHF Radio 1 2 TY96 Mounting Tray 1 3 TY96 Mounting Tray Back Plate 1 4 Screw M2.5 x 8mm, pan pozidrive 2

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 29 13. Wiring Diagrams Diagram 1: System Interface................................................................................................................................................................................................................................. 30 Diagram 2: Typical standalone interconnect (no audio panel) ................................................................................................................................................................................... 31 Diagram 3: Audio panel interconnect ..................................................................................................................................................................................................................... 32

29 July 2016 01238-00 Issue AD ______________________ Page 30 Trig Avionics Limited TY96 VHF Radio [25 Way Connector] Cabin Speaker Auxiliary Audio Pilots PTT or Mic Key switch Copilots PTT or Mic Key switch TX Interlock VHF/Com 2 (If installed) Speaker Out Aux Input PTT1 PTT2 Intercom Enable Switched or permanent connection to ground COM Antenna Power & Ground Aircraft Power and Ground 1 1 AUXILIARY INPUT TO BE USED FOR WARNINGS AND IDENT TONES Headphone 2 MIC 1 Input MIC 2 Input Pilot Microphone Copilot Microphone Pilot Headphones Copilot Headphones Lighting Bus Input Aircraft Lighting Bus (14v or 28v) Headphone 1 Audio Panel (If installed) Mono Audio Out MP3 Player Music In [L] Music In [R] GPS RS232 Input BNC Antenna Connector IF AN AUDIO PANEL IS INSTALLED THEN ALL THE AUDIO INPUTS/OUTPUTS AND PTT CONNECTIONS SHOULD BE CONNECTED TO THE AUDIO PANEL AND NOT THE TY96. 2 3 RS232 INPUT USED TO PRELOAD THE TY96 WITH FREQUENCIES FROM THE GPS DATABASE 2 3 Diagram 1: System Interface

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 31 AIRCRAFT POWER IN AIRCRAFT POWER IN AIRCRAFT GROUND AIRCRAFT GROUND AUXILIARY AUDIO LIGHTING BUS IN INTERCOM KEY PTT 1 PTT 2 HEADPHONE 1 [RIGHT] HEADPHONE 1 [LEFT] HEADPHONE 2 [RIGHT] HEADPHONE 2 [LEFT] MICROPHONE 1 MICROPHONE 2 GROUND ANTENNA BNC 13 25 9 17 14 8 22 23 24 3 2 6 5 18 19 4 P1 TRIG TY96 5A CIRCUIT BREAKER 11 – 33V AIRCRAFT POWER AIRCRAFT GROUND AIRCRAFT LIGHTING BUS (14V OR 28V) PILOTS PTT COPILOTS PTT PILOTS HEADPHONES COPILOTS HEADPHONES PILOTS MICROPHONE COPILOTS MICROPHONE COM ANTENNA 1 AUXILIARY INPUT TO BE USED FOR WARNINGS AND IDENT TONES THE TY96 INTERCOM IS ENABLED WHEN THIS PIN IS CONNECTED TO GROUND. THE GROUND SIGNAL CAN BE SWITCHED IF REQUIRED TO CREATE AN INTERCOM PTT. TO DISABLE THE INTERCOM LEAVE THIS PIN FLOATING. NOTES 1. POWER AND GROUND WIRES SHOULD ALL BE 20 AWG 2. ALL OTHER WIRES SHOULD BE 20 - 24 AWG UNLESS STATED OTHERWISE MOUNTING TRAY BACK PLATE GROUND BLOCK 1 2 2 ALL AUDIO GROUNDS SHOULD BE CONNECTED TO THE ONE OF THE GROUND LUGS ON THE MOUNTING TRAY BACK PLATE WITH A WIRE CONNECTING TO PIN 4 ON THE SAME LUG. ALL OTHER GROUND LUGS TO BE USED FOR THE SHIELD CONNECTIONS. 3 3 Diagram 2: Typical standalone interconnect (no audio panel)

29 July 2016 01238-00 Issue AD ______________________ Page 32 Trig Avionics Limited Bendix/King KMA 24H -70 / -71 KMA 24 KMA 26 KMA 28 P241 J1 (Bottom) P261 P241 PS Engineering PMA 6000B PAC 24 PMA 8000 PMA 6000 PMA 7000 J1 Bottom J1 (Bottom) P1 Garmin GMA 347 SL 10 Series SL 15 Series GMA 340 J3471 P1 Bottom Audio Panel Model Connector 9 / (10) GND LUG P (H) GND LUG R V COM 1 / (COM 2) AUDIO HI COM 1 / (COM 2) AUDIO LO COM 1 / (COM 2) MIC AUDIO HI COM 1 / (COM 2) MIC AUDIO LO COM 1 MIC KEY COM 2 MIC KEY 9 / (13) 10 / (14) 11 / (15) 10 / (14) 12 30 7 / (12) 8 / (13) 26 / (32) 8 / (13) 27 33 T / (16) GND LUG 3 (E) GND LUG C H 9 / (13) 10 / (14) 11 / (15) GND LUG 12 30 9 / (10) GND LUG P (H) GND LUG R V 6 (36) 20 (35) 4 (34) 24 5 21 9 /(10) GND LUG P (H) GND LUG R V 4 / (5) 21 / (22) 37 / (39) GND LUG 38 40 9/ (10) GND LUG P (H) GND LUG R V T / (16) GND LUG 3 (E) GND LUG C H MOUNTING TRAY BACK PLATE GROUND BLOCK 7 18 4 23 10 MONO AUDIO OUT MICROPHONE 1 GROUND PTT 1 TRANSMIT INTERLOCK TRIG TY96 P1 PTT 1 TRANSMIT INTERLOCK Com 2 1 TX INTERLOCK AND PTT CONNECTIONS TO COM 2 REQUIRED TO PREVENT BREAKTHROUGH WHEN TUNED TO ADJACENT VHF CHANNELS NOTES 1. POWER AND GROUND WIRES SHOULD ALL BE 20 AWG 2. ALL OTHER WIRES SHOULD BE 20 - 24 AWG UNLESS STATED OTHERWISE 3. SCREENED CABLE TO BE 22 AWG TO MIL-C-27500 OR EQUIVALENT 1 Diagram 3: Audio panel interconnect TMA44 TMA45 J1 (Bottom) J1 6 (36) 20 (35) 4 (34) 24 5 21 9 / (13) 10 / (14) 11 / (15) GND LUG 12 30 Trig

29 July 2016 01238-00 Issue AD ______________________ Trig Avionics Limited Page 33 HEADPHONE 1 L OUT HEADPHONE 2 R OUT RS232 OUT RS232 IN AIRCRAFT POWER IN AIRCRAFT POWER IN AIRCRAFT GROUND MICROPHONE 1 MICROPHONE 2 PTT 1 I/C KEY SPEAKER AIRCRAFT GROUND GROUND 2 6 11 12 13 25 17 18 19 23 22 1 9 4 P1 TRIG TY96 HEADPHONE TXD RXD POWER + MIC GROUND MIC 1 MIC 2 TX KEY I/C KEY SPEAKER POWER GROUND AUDIO GROUND SERIAL GROUND 14 3 10 1 7 8 15 4 12 6 9 13 11 P1 Garmin SL40 MOUNTING TRAY BACK PLATE GROUND BLOCK ALL SHIELD GROUND WIRES 1 1 1 1 THESE CONNECTIONS SHOULD ALREADY BE WIRED USING SCREENED CABLE. THIS DIAGRAM ONLY ILLUSTRATES THE EXPOSED WIRING INSIDE THE SHIELD. THE SHIELD SHOULD BE CONNECTED TO THE TY96 GROUND BLOCK NOTES THIS DIAGRAM ILLUSTRATES HOW TO USE THE EXISTING WIRING FROM A GARMIN SL40. 1. POWER AND GROUND WIRES SHOULD ALL BE 20 AWG 2. ALL OTHER WIRES SHOULD BE 20 - 24 AWG UNLESS STATED OTHERWISE 2 ALL EXISTING SL40 SHIELD CONNECTIONS SHOULD BE CONNECTED TO THE TY96 GROUND BLOCK Diagram 4: Connections for existing SL40 wiring replacement

29 July 2016 01238-00 Issue AD ______________________ Page 34 Trig Avionics Limited 2 MONO AUDIO OUT AIRCRAFT POWER IN AIRCRAFT POWER IN AIRCRAFT GROUND AIRCRAFT GROUND MICROPHONE 1 PTT 1 LIGHTING BUS IN REMOTE FLIP-FLOP TRANSMIT INTERLOCK GROUND 7 13 25 9 17 18 23 8 21 10 4 P1 TRIG TY96 500 OHM AUDIO OUT 13.75 A/C POWER 13.75 A/C POWER POWER GROUND POWER GROUND MIC AUDIO MIC KEY +14 LIGHTING HI REMOTE TRANSFER XMIT REC INTERLOCK AUDIO GROUND MIC GROUND H R 14 F 6 J 9 B 11 N 7 8 P1 Bendix/King KY197A MOUNTING TRAY BACK PLATE GROUND BLOCK 2 1 THESE CONNECTIONS SHOULD ALREADY BE WIRED USING SCREENED CABLE. THIS DIAGRAM ONLY ILLUSTRATES THE EXPOSED WIRING INSIDE THE SHIELD. THE SHIELD SHOULD BE CONNECTED TO THE TY96 GROUND BLOCK NOTES THIS DIAGRAM ILLUSTRATES HOW TO USE THE EXISTING WIRING FROM A BENDIX KING KY197A WHICH IS CONNECTED TO AN AUDIO PANEL. 1. POWER AND GROUND WIRES SHOULD ALL BE 20 AWG 2. ALL OTHER WIRES SHOULD BE 20 - 24 AWG UNLESS STATED OTHERWISE 2 ALL EXISTING SHIELD CONNECTIONS SHOULD BE CONNECTED TO THE TY96 GROUND BLOCK ALL SHIELD GROUND WIRES Diagram 5: Connections for existing KY197A wiring connected to an audio panel 3 IF REPLACING A KY196, PLEASE NOTE THAT THE PINOUT IF DIFFERENT FOR THE XMIT REC INTERLOCK. THE KY196 USES PIN M. 3

29 July 2016 01238-00 Issue AD __________________ ____ Trig Avionics Limited Page 35 14. USB File Format The TY96/TY97 radio internal database that can store up to 250 airfield frequencies. These are stored as an identifier (up to 6 characters), a standard facility designator, such as TWR or GND, and the station frequency. These database entries can be created, edited, and deleted from the front panel of the radio. They can also be saved to a USB stick and loaded from the USB stick. The data file used on the USB stick is a standard format called Comma Separated Values or CSV, and the USB stick itself uses the popular FAT32 file system, which means that the file can also be edited on a desktop computer. CSV files can be edited using a simple text editor, or they can be opened by most spreadsheet software. The Trig Com radio database is always loaded from and stored to a file called TRIGCOM.CSV located in the root directory of the USB stick. Each database record is written to a single line of the file, and is in the following format: ,, For example: EDINBR,TWR,118.700 The airfield name can be up to 6 characters long. If a file is loaded with entries longer than 6 characters, the names will be truncated. The facility is one of the following: Standard Form Alternate Form TWR TOWER GND GROUND ATIS ATIS ATF ATF APPR APPROACH ARRV ARRIVAL AWS AWS CLRC CLEARANCE CTAF CTAF DPRT DEPART FSS FSS RFSS RFSS UNIC UNICOM MNDF MANDATORY CTRL CONTROL RADR RADAR ZONE ZONE TALK TALKDOWN INFO INFORMATION RDIO RADIO

29 July 2016 01238-00 Issue AD ______________________ Page 36 Trig Avionics Limited Frequencies are written in the usual manner; the MHz number should be between 118 and 137 MHz, whilst the kHz value should normally contain 3 digits, although trailing zeroes can be omitted. 14.1 USB Compatibility Although intended as a generic USB interface, not all memory sticks will work in the TY96/TY97. A Trig branded USB stick is supplied with each radio; the Trig USB stick will work correctly. The Trig USB stick also has a read-only partition that contains a copy of this manual. The USB socket is not intended for other functions, and is disabled during normal operation of the radio. It cannot be used as a charging point for other equipment.