VZI00879LICENSED NON-BROADCAST AERONAUTICAL TRANSMITTER

TY91/TY92 VHF radio Installation Manual 00839-00-AA 11 April 2012 Trig Avionics Limited Heriot Watt Research Park Riccarton, Edinburgh EH14 4AP Scotland, UK Copyright Trig Avionics Limited, 2012 This page intentionally left blank TY91/TY92 VHF Radio Installation Manual 11 April 2012 00839-00 Issue AA ______________________ Trig Avionics Limited i CONTENTS 1. PREFACE ...............................................................................................5 1.1 PURPOSE ...........................................................................................5 1.2 SCOPE ...............................................................................................5 1.3 CHANGES FROM PREVIOUS ISSUE ......................................................5 1.4 DOCUMENT CROSS-REFERENCES ......................................................5 2. INTRODUCTION ..................................................................................7 2.1 TY91/TY92 DESCRIPTION ................................................................7 2.2 INTERFACES ......................................................................................7 2.2.1 TY91/TY92 VHF radio Unit .....................................................7 2.2.2 TC90 Controller Unit ...............................................................8 3. TECHNICAL SPECIFICATIONS .......................................................9 3.1 TY91 VHF RADIO UNIT (00882-00-01) ...........................................9 3.2 TY92 VHF RADIO UNIT (00879-00-01) .........................................10 3.3 TC90 CONTROL UNIT (00857-00-01) .............................................11 3.4 LOW VOLTAGE OPERATION ............................................................12 3.5 INSTALLATION APPROVAL ...............................................................13 4. UNIT AND ACCESSORIES SUPPLIED...........................................14 4.1 TY91 VHF RADIO ITEMS ................................................................14 4.2 TY92 VHF RADIO ITEMS ................................................................14 4.3 TC90 CONTROLLER ITEMS ..............................................................14 4.4 INSTALLATION KIT ..........................................................................14 4.5 REQUIRED ITEMS ............................................................................15 TY91/TY92 VHF Radio Installation Manual 11 April 2012 00839-00 Issue AA ______________________ ii Trig Avionics Limited 5. INSTALLATION .................................................................................16 5.1 UNPACKING AND INSPECTING EQUIPMENT ......................................16 5.2 CONTROLLER MOUNTING................................................................16 5.3 VHF RADIO MAIN UNIT MOUNTING ...............................................17 5.4 COOLING REQUIREMENTS ...............................................................17 5.5 TY91/TY92 VHF RADIO ELECTRICAL CONNECTIONS ....................18 5.5.1 TY91/TY92 Interface – Pinout ................................................18 5.6 TY91/TY92 VHF RADIO INTERFACE DETAILS ...............................19 5.6.1 Speaker Output .......................................................................19 5.6.2 TMAP Bus ..............................................................................19 5.6.3 Headphone Output .................................................................20 5.6.4 Controller Power ...................................................................20 5.6.5 Power On ...............................................................................20 5.6.6 PTT1/2 Key Input ...................................................................20 5.6.7 Intercom Key Input .................................................................21 5.6.8 Transmit Interlock ..................................................................21 5.6.9 Auxiliary Audio Input .............................................................21 5.6.10 Microphone Input ...................................................................22 5.6.11 Power Input ............................................................................22 5.6.12 Ground Returns ......................................................................22 5.7 TC90 CONTROLLER ELECTRICAL CONNECTIONS ............................22 5.7.1 TC90 Interface - Pinout .........................................................23 5.8 TC90 CONTROLLER INTERFACE DETAILS .......................................24 5.8.1 TMAP Bus ..............................................................................24 TY91/TY92 VHF Radio Installation Manual 11 April 2012 00839-00 Issue AA ______________________ Trig Avionics Limited iii 5.8.2 RS232 Input ............................................................................24 5.8.3 Remote ON .............................................................................24 5.8.4 Power .....................................................................................24 5.8.5 Step Button .............................................................................24 5.8.6 Transfer Button ......................................................................25 5.9 D CONNECTOR CRIMP TERMINALS .................................................25 5.10 WIRING CONSIDERATIONS ...............................................................26 5.10.1 TC90 Interconnect ..................................................................26 5.10.2 Audio wiring ...........................................................................27 5.11 ANTENNA INSTALLATION ................................................................27 5.11.1 Antenna Ground Plane...........................................................28 5.11.2 Antenna Cable ........................................................................29 5.11.3 TNC Connector .....................................................................…

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January 24, 2008 Federal Communications Commission Equipment Approval Services Post Office Box 358315 Pittsburgh, Pennsylvania 15215-5315 To Whom It May Concern: Please be advised that Trig Avionics Limited has authorized Scot Rogers of Rogers Labs, Inc. to act on behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters and submittals. All acts carried out by Rogers Labs, Inc. on our behalf shall have the same effects as our own. Rogers Labs, Inc. is authorized to receive and exchange data between our company and the Commission. This Authorization is made pursuant to Paragraph 2.911 of FCC Rules CFR 47. This Authorization is in effect until otherwise notified in writing. Andrew Davis CEO Trig Avionics Limited

October 25, 2012 Timco Engineering Inc. 849 NW State Road 45 Newberry, FL 32669 Applicant: Trig Avionics Limited Equipment: FCC ID: VZI00879 Heriot Watt Research Park, Riccarton CORES number: 0017 3590 84 Currie EH14 4AP United Kingdom Re: Confidentiality for submittal information regarding FCC ID number VZI00879 PRODUCT: Aviation Transmitters operated under part 87 Dear Sirs: Trig Avionics Limited requests that the material in the Parts List, Schematics, Block Diagram, and Operational Description be withheld from public disclosure pursuant to Sections 0.457 and 0.459 of the Commission’s Rules following grant of the application. In support of this request, Trig Avionics Limited submits the following information. CONFIDENTIAL FILES Exhibit File Schematic Conf Schem VZI00879.pdf Block diagram Conf BlkDia VZI00879.pdf Operational Description Conf OpDesc VZI00879.pdf Parts List Conf PartList VZI00879.pdf 1. Identification of the specific information for which confidential treatment is sought: The materials set fourth in the Operational Description, block diagram, parts list, and Schematics, which are segregated, from the non-confidential exhibits of the application, are those for which confidentiality is sought. 2. Identification of the Commission proceeding in which the information was submitted or a description of the circumstances giving rise to the submission: The proceeding is that involving the application for equipment authorization (certification) under FCC ID No: VZI00879 ROGERS LABS, INC. 4405 West 259 th Terrace Louisburg, KS 66053 913 837-3214 3. Explanation of the degree to which the information is commercial or financial, or contains a trade secret or is privileged: This material includes a detailed theory of operation, circuit diagrams, and schematic. As such, this material is treated as highly confidential business information. 4. Explanation of the degree to which the information concerns a service that is subject to competition: The material for which confidentiality is sought is employed in the design and manufacture of this transmitting equipment that is offered on a highly competitive basis. Customers for this equipment have a variety of competing sources. 5. Explanation of how disclosure of the information could result in substantial competitive harm: Disclosure would, in effect, give away the fruits of the labors of Trig Avionics Limited engineering personnel, who have designed the equipment and the manufacturing process. Disclosure would also offer competitors additional unwarranted insight into the state of the product development, thereby allowing competitors an advantage, not available to Trig Avionics Limited 6. Identification of any measures taken by the submitting party to prevent unauthorized disclosure: The information for which confidential treatment is sought is kept confidential by Trig Avionics Limited and not made available to third parties except pursuant to non-disclosure agreements. 7. Identification of whether the information is available to the public and the extent of any previous disclosure of the information to third parties: To the knowledge of those preparing this application, the information has not been disclosed publicly heretofore. While the general theory of operation of this equipment has been the subject of numerous disclosures in industry and standards groups as well as in rule making proceedings of the FCC, the protection sought is narrowly drawn and pertains to certain specific implementations of this radio technology. 8. Justification of the period during which the submitting party asserts that the material should not be available for public disclosure: This material should not be disclosed for at least 25 years. While improvements in design are made relatively frequently, disclosure of the design information would lead to insights into both design and manufacturing techniques that could have an adverse competitive effect for many years to come. As such, it is important that the design not be made available to unauthorized persons who might attempt to use knowledge of the design to compromise the applications for which the equipment will be employed. Should you require any further information, please contact the undersigned. Thank you for your consideration in this matter. Sincerely, Scot Rogers

October 29, 2012 Timco Engineering Inc. 849 NW State Road 45 Newberry, FL 32669 Applicant: Trig Avionics Limited Equipment: FCC ID: VZI00879 Heriot Watt Research Park, Riccarton CORES number: 0017 3590 84 Currie EH14 4AP United Kingdom Re: Short-term Confidentiality request for submittal information regarding FCC ID: VZI00879 FCC Rules: Parts 2 and 87 Dear Sirs: Trig Avionics Limited requests that the following information be withheld from public disclosure pursuant to CFR47 paragraphs 0.457 and 0.459, and KDB 726920 until 90 days after the Grant of Equipment Authorization. Disclosure of information would offer competitors additional unwarranted insight into the state of the product development. Short-term confidential files Exhibit File External Photos Short Term Conf ExtPho VZI00879.pdf Internal Photos Short Term Conf IntPho VZI00879.pdf Test Setup Photos Short Term Conf TSup VZI00879.pdf User Manual Short Term Conf UserMan VZI00879 1.pdf Should you require any further information, please contact the undersigned. Thank you for your consideration in this matter. Sincerely, Scot Rogers ROGERS LABS, INC. 4405 West 259 th Terrace Louisburg, KS 66053

October 25, 2012 Timco Engineering Inc. 849 NW State Road 45 Newberry, FL 32669 Applicant: Trig Avionics Limited Equipment: FCC ID: VZI00879 Heriot Watt Research Park, Riccarton CORES number: 0017 3590 84 Currie EH14 4AP United Kingdom FCC Rules: Parts 2 and 87 Men: The form 731 and application have been electronically submitted and any attachments will be up loaded to your web site to be used in obtaining a grant of certification. Confidentiality is requested as outlined below. Short-term confidential files Trig Avionics Limited requests that the following information be withheld from public disclosure pursuant to CFR47 paragraphs 0.457 and 0.459, and KDB 726920 until 45 days after the Grant of Equipment Authorization. Exhibit File External Photos Short Term Conf ExtPho VZI00879.pdf Internal Photos Short Term Conf IntPho VZI00879.pdf Test Setup Photos Short Term Conf TSup VZI00879.pdf User Manual Short Term Conf UserMan VZI00879 1.pdf Permanent Trig Avionics Limited requests that the material in the Parts List, Schematics, Block Diagram, and Operational Description be withheld from public disclosure pursuant to Sections 0.457 and 0.459 of the Commission’s Rules following grant of the application. A statement of confidentiality will be attached with the application at the time of submittal. Exhibit File Schematic Conf Schem VZI00879.pdf Block diagram Conf BlkDia VZI00879.pdf Operational Description Conf OpDesc VZI00879.pdf Parts List Conf PartList VZI00879.pdf Should you require any further information, please contact the undersigned. Thank you for your consideration in this matter. Sincerely, Scot Rogers Rogers Labs, Inc. Enclosures ROGERS LABS, INC. 4405 West 259 th Terrace Louisburg, KS 66053 Phone / Fax (913) 837-3214

Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Short Term Conf ExtPho VZI00879 Page 1 of 3 External photographs of equipment under test Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Short Term Conf ExtPho VZI00879 Page 2 of 3 Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Short Term Conf ExtPho VZI00879 Page 3 of 3 Identification Label

Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File LabelSmpl VZI00879 Page 1 of 1 FCC/IC ID label and location Identification Label

Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Short Term Conf IntPho VZI00879 Page 1 of 4 Internal Photographs Transmitter Top Transmitter Bottom Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Short Term Conf IntPho VZI00879 Page 2 of 4 Receiver Top Receiver Bottom Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Short Term Conf IntPho VZI00879 Page 3 of 4 Digital Top Digital Bottom Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Short Term Conf IntPho VZI00879 Page 4 of 4 Inside Case

TY91/TY92 Tuning Procedure Tuning Points The transmitter assembly has one adjustment: Gate bias for the final MOSFET transistor controlled by a multi-turn trimmer. The frequency references for the transmitter are TCXOs with no adjustment points. There are no other tuning adjustments. Tuning Procedure During final stage manufacturing or factory maintenance, the Gate bias tuning point is adjusted to maximise the power output of the system. Retuning is not required after this time.

Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File RFExp VZI00879 Page 1 of 1 MPE Calculation page

NVLAP Lab Code 200087-0 Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Trig Avionics TY92 TstRpt 1200820A Page 1 of 29 Application for Grant of Certification Aviation Communications Transceiver Per CFR47, Part 87 and RSS-141 Model: TY92 FCC ID: VZI00879 IC: 10614A-00879 118-136.992 MHz For Trig Avionics Limited Heriot Watt Research Park Riccarton Currie EH14 4AP United Kingdom Test Report Number 120820A Authorized Signatory: Scot D. Rogers NVLAP Lab Code 200087-0 Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Trig Avionics TY92 TstRpt 1200820A Page 2 of 29 Test Report For Application of Certification For Trig Avionics Limited Heriot Watt Research Park Riccarton Currie EH14 4AP United Kingdom Mr. Andrew Davis CEO Model: TY92 Aviation Communications Transceiver Frequency Range: 118-136.992 MHz FCC ID: VZI00879 IC: 10614A-00879 Test Date: August 20, 2012 Certifying Engineer: Scot D. Rogers Rogers Labs, Inc. 4405 West 259th Terrace Louisburg, KS 66053 Telephone/Facsimile: (913) 837-3214 This report shall not be reproduced except in full, without the written approval of the laboratory. This report must not be used by the client to claim product endorsement by NVLAP, NIST, or any agency of the U.S. Government. Rogers Labs, Inc. 4405 West 259th Terrace Louisburg, KS 66053 Phone / Fax (913) 837-3214 NVLAP Lab Code 200087-0 Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Trig Avionics TY92 TstRpt 1200820A Page 3 of 29 Table of Contents TABLE OF CONTENTS .................................................................................................. 3 REVISIONS ..................................................................................................................... 4 FORWARD ..................................................................................................................... 5 OPINION / INTERPRETATION OF RESULTS ............................................................... 5 APPLICABLE STANDARDS & TEST PROCEDURES .................................................. 5 ENVIRONMENTAL CONDITIONS.................................................................................. 5 APPLICATION FOR CERTIFICATION ........................................................................... 6 SYSTEM DESCRIPTION ................................................................................................ 7 UNITS OF MEASUREMENTS ........................................................................................ 7 TEST SITE LOCATIONS ................................................................................................ 7 LIST OF TEST EQUIPMENT .......................................................................................... 8 TRANSMITTER POWER OUTPUT ................................................................................ 9 Measurements Required ........................................................................................................................................ 9 Test Arrangement ................................................................................................................................................... 9 Transmitter Power Results .................................................................................................................................. 10 Figure 1 Transmitter Output across Frequency Band ......................................................................................... 10 MODULATION CHARACTERISTICS ........................................................................... 11 Measurements Required ...................................................................................................................................... 11 Test Arrangement ................................................................................................................................................. 11 Modulation Characteristic Results ...................................................................................................................... 11 Figure 2 Modulation Characteristics .................................................................................................................. 11 Figure 3 Audio Frequency Response / Modulation Characteristics ................................................................... 12 Figure 4 Frequency Response of Audio Low pass Filter ................................................................................... 12 OCCUPIED BANDWIDTH ............................................................................................ 13 Measurements Required ...................................................................................................................................... 13 NVLAP Lab Code 200087-0 Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Trig Avionics TY92 TstRpt 1200820A Page 4 of 29 Test Arrangement ................................................................................................................................................. 13 Occupied Bandwidth Results ..................................................................................................…

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Rogers Labs, Inc. Trig Avionics Limited IC: 10614A-00879 4405 West 259 th Terrace Model: TY92 FCC ID: VZI00879 Louisburg, KS 66053 Test #: 120820A SN: 0004 Phone/Fax: (913) 837-3214 Test to: CFR47 Parts 2, 87 and RSS-141 Date: October 25, 2012 Revision 1 File: Short Term Conf TSup VZI00879 Page 1 of 1 Test setup photographs