AJKPN822-1250-001Aeronautical Mobile Transceiver

INSTALLATION AND OPERATING INSTRUCTIONS – EXHIBIT C Pursuant to an agreement with the FCC staff, the document is available upo n request but is not included in this electronic exhibit .

December 20, 2000 Federal Communicatio ns Co mmission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Re:Equipment Authorization Under Part 87 VHF-920 Communications Transceiver FCC ID: AJKPN822-1250-001 Form 731 Confirmation #: EA99000 Gentle me n: Enclosed on behalf of Rockwell Collins, Inc. (Rockwell Collins) is the FAA's official response and concurrence with Rockwell's equipment authorization request. We would like to have the certification complete by the first week of January 2001. Please direct all inquiries to Mr. Joseph Cramer of this office at (703) 516-8213. Respectfully submitted, Linda C. Sadler Director, Governmental & Regulatory Affairs cc:M. M. Little, 106-100 Joseph S. Cramer

1. EQUIPMENT PHOTOGRAPH - EXTERNAL VIEWS - EXHIBIT G Photographs of VHF-920 Index of Photographs Photo #Description 1.jpgTransceiver left with cover 2.jpgTransceiver right with cover. 3.jpgTransceiver rear view.

X2 DESCRIPTIONLTRDATE 0 APVD REVISIONS A ROCKWELL INTERNATIONAL CORPORATION COLLINS COMMERCIAL AVIONICS CEDAR RAPIDS, IOWA 52498 A SIZE 4V792 CAGEDWG NO REV LTR SCALE NONE ENGR PREP CHK APVD NFPRELCRMB 
  FOR REVISION CENTER USE ONLY: REVISION NO. DCN SHEET NO. FRO DO NOT REVISE MANUALLY DOCUMENT GENERATED USING INTERLEAF ALL SHEETS ARE THE SAME REVISION STATUS PLATE, IDENTIFICATION V. Standley 00–05–09 L. Roudabush 00–05–09 D. Yonts 00–05–10 829–0413 –CE1416 – ORIGINAL RELEASE00–05–10DY ABV742100–06–08DY NOTE: – Usage precludes identification marking on part. – Paragraph and/or figure number followed by ” ” indicate a change by the latest revision. – Dash No. 000 (Doc Ident Only) This document is a paper representation of the master copy, which is stored in the Avionics Data Access Manager (ADAM) database and can be obtained through the Commercial Avionics Mechanical Design Support Department at Collins Commercial Avionics Group, Cedar Rapids, Iowa. ROCKWELL INTERNATIONAL PROPRIETARY INFORMATION. DISSEMINATION OUTSIDE ROCKWELL INTERNATIONAL TO BE CLEARED THROUGH THE PATENT COUNCIL. A A SIZE 4V792 CAGE DWG NO REV LTR SCALE NONE SHEET2 DO NOT REVISE MANUALLY FOR REVISION CENTER USE ONLY: REVISION NO. DCN SHEET NO. 829–0413 TOP LEVEL APPLICABILITY CHART FOR 822–1250–XXX VHF–920 Top Level Dash Number Identification Plate Dash NumberRemarks / Contract –001LASER GENERATED, NON TSO’D –001–002LASER GENERATED, NON TSO’D A A SIZE 4V792 CAGE DWG NO REV LTR SCALE NONE SHEET3 DO NOT REVISE MANUALLY FOR REVISION CENTER USE ONLY: REVISION NO. DCN SHEET NO. 829–0413 Notes: 1.Fabricate using 838–7043–080 in accordance with 839–4023–001. 2.The “_________” character denotes a variable data field. 3.Reference template file “J0009007.job”. The template file also includes the Serial Number / Modification plate digital data. 4.Parenthetical information is for reference only. Serial Number / Modification Plate Shown for Reference Only 829–0413–001 ( 2.20 ) ( 1.25 ) A A SIZE 4V792 CAGE DWG NO REV LTR SCALE NONE SHEET4 DO NOT REVISE MANUALLY FOR REVISION CENTER USE ONLY: REVISION NO. DCN SHEET NO. 829–0413 Notes: 1.Fabricate using 838–7043–080 in accordance with 839–4023–001. 2.The “_________” character denotes a variable data field. 3.Reference template file “J0009012.job”. The template file also includes the Serial Number / Modification plate digital data. 4.Parenthetical information is for reference only. Serial Number / Modification Plate Shown for Reference Only 829–0413–002 ( 2.20 ) ( 1.25 ) 1.

A A SIZE 4V792 CAGE DWG NO REV LTR SCALE NONE 

6 DO NOT REVISE MANUALLY FOR REVISION CENTER USE ONLY: REVISION NO. DCN SHEET NO. 829–0413 Notes: 1.Fabricate using 838–7043–080 in accordance with 839–4023–001. 2.The “_________” character denotes a variable data field. 3.Reference template file “J0009012.job”. The template file also includes the Serial Number / Modification plate digital data. 4.Parenthetical information is for reference only. Serial Number / Modification Plate Shown for Reference Only 829–0413–003 ( 2.20 ) ( 1.25 ) UNRELEASED PART NUMBER 1.

1. EQUIPMENT PHOTOGRAPH – INTERNAL VIEWS - EXHIBIT H Photographs of VHF-920 Index of Photographs Photo #Description 4.jpgTransceiver front left cover open showing A4 Power Supply and I/O Assembly on left and A3 System Processor Assembly on right. 5.jpgClose up of A4 Power Supply 6.jpgClose up of A3 System Processor 7.jpgTransceiver right side with cover open showing A2 Signal Processor/Frequency Synthesizer Assembly on left and A1 VHF RF Assembly on right. 8.jpgTransceiver right side with close up of A1 VHF RF Assembly with cover . 9.jpgClose up of A2 Signal Processor 10.jpg Transceiver right side with close up of A1 VHF RF Assembly with cover removed 11.jpg Transceiver front left cover open showing version with combined A3 Power Supply and I/O Assembly (“Combo”). 12.jpg Close up of A3 Power Supply and I/O Assembly (“Combo” unit) 13.jpg Close up of A1A1 Daughter Card, 828-1255-002 14.jpg Transceiver front left cover open showing version with Capacitor Card used with A3 Power Supply and I/o Assembly (“Combo”)

FCC Certification Tests for the VHF-920 Communications Transceiver CPN: 653-9908-304August 27, 2000Page: 1 OPERATIONAL DESCRIPTION – EXHIBIT A 1.1 SCOPE This report and its exhibits provide the information required by parts 2 and 87 of the FCC Rules and Regulations for Certification of the transmitter portion of the VHF-920 VHF Communications Transceiver. The Collins part number for the VHF-920 is 822-1250-001. The units tested were engineering units representative of production configurations of the VHF-920, Collins part number 822-1250-001. Unless otherwise noted, all tests were conducted at the Rockwell Collins Melbourne Design Center in Melbourne, FL. 1.2 EQUIPMENT DESCRIPTION The VHF-920 VHF Transceiver is a solid state, 2280 channel AM transceiver designed to provide air-to-air or air-to-ground AM voice or analog data communications in the 118.000 to 137.000 MHz Aeronautical communications band. It operates in communications systems having 25 kHz or 8.33 kHz channel spacing. In addition to AM operation voice or analog data operation, the VHF-920 will provide air-to-ground packet digital data communications (VDL Mode 2) in the 118.000 to 136.975 MHz band in communications systems having 25 kHz channel spacing. The unit operates on 27.5 VDC and is packaged in an ARINC 600 standard 3 MCU configuration. 1.2.1 CERTIFICATION BASED ON SIMILARITY The VHF-920 is a derivative design of the VHF-900B, CPN 822-1047-003 which received FCC Type Acceptance in 1997 (FCC ID AJKPN822-1047). The VHF-920 uses the same hardware platform and provides the same functions (AM Voice and data) as the Type Accepted VHF-900B. By upgrade of software, the VHF-920 also provides new additional capability for VDL Mode 2 operation. VDL Mode 2 is a digital modulation using a 31.5 kb/sec D8PSK waveform. Because of the similarity of VHF-920 Hardware and Voice/Analog Data operations with the VHF-900B, the Certification testing of the VHF-920 will be by similarity to the VHF-900B with only with new testing and results provided for test cases related to VDL Mode 2 operation. Test results based on similarity will be those provided for Certification of the VHF-900B in Rockwell Collins document 653-9907-100 (originally submitted for Type Approval of the VHF-900B in 1997). For completeness, these test results are included in this document. While not required for this report, testing for FCC Part 15 Declaration of Conformity as a non-intentional radiator for the receiver portion of the VHF-920 is also by similarity to the VHF-900B. FCC Certification Tests for the VHF-920 Communications Transceiver CPN: 653-9908-304August 27, 2000Page: 2 2. TECHNICAL REPORT – EXHIBIT B 2.1 NAME OF APPLICANT Rockwell Collins, Inc 400 Collins Road NW Cedar Rapids, Iowa 52904 Applicant is manufacturer of the equipment 2.2 FCC IDENTIFICATION OF EQUIPMENT VHF-920, Collins part number 822-1250-001 FCC ID: AJKPN822-1250 2.3 INSTALLATION MANUAL Rockwell Collins, Inc. does not supply an instruction book with the VHF-920 transceiver. The transceiver is supplied to airframe manufacturers and airlines, and designed to meet the requirements of ARINC 716-8 and ARINC 750. Operating instructions are not necessary because the unit is part of a larger VHF communications system. Rockwell Collins does produce the VHF- 920 Component Maintenance Manual, a comprehensive installation manual which, pursuant to an agreement with the FCC staff, is available upon request but in not included in this electronic exhibit. 2.4 TYPES OF EMISSIONS When 25 kHz AM operation is selected, voice or analog data modes are enabled. The types of emissions on 25 kHz analog channels are: 5K00A3E and 10K00A3D When 8.33 kHz AM operation is selected, only voice is enabled. The type of emission on 8.33 kHz analog channels is: 5K00A3E When 25 kHz channel VDL Mode 2 operation is selected, the digital data mode is enabled. The transmit waveform is a 31.5 Kb/sec D8PSK signal using raised cosine filtering with excess bandwidth of 0.6. The type of emission on 25 kHz digital data channels is: 14K0G1DE FCC Certification Tests for the VHF-920 Communications Transceiver CPN: 653-9908-304August 27, 2000Page: 3 2.5 FREQUENCY RANGE Frequency range: 118.000 through 136.975 MHz (including two 8.33 kHz channels at 136.98333 and 136.991633 KHz) 2.6 OPERATING POWER AM voice and analog data modes - 30 watts carrier power (not adjustable by operator) Minimum carrier power is 16 watts under any single aircraft normal environmental condition, to satisfy the requirements of airworthiness authorities. VDL Mode 2 – 18 watts average power (not adjustable by operator) Minimum average power is 15 watts under any single aircraft normal environmental condition, to satisfy the requirements of airworthiness authorities. 2.7 MAXIMUM POWER RAT ING Part 87 of the FCC Rules and Regulations, Section 87.131, defines a maximum power rating of 55 watts for an Aircraft (Communication) Class of station. The VHF-920 does not exceed this limitation. 2.8 DC VOLTAGES AND CURRENTS The VHF-920 utilizes a push-pull type of final PA stage. The DC voltage applied to the collectors of the final transistors is 27 VDC. Un-modulated DC current into the final amplifier stage typically total 4 amperes in voice and analog data modes. In VDL Mode 2, the modulated DC current into the final amplifier stages typically totals 3.7 amperes. The emitters of A1Q3 and A1Q4 (the power output stages) are grounded. The bases of A1Q3 and A1Q4 are connected to bias circuits. The extremely low base-circuit impedance and the critical circuit geometry make it impractical to attempt to measure the transistor base current. Introducing any available measuring device into the base circuit materially alters the operating conditions. Un-modulated RF power into the transistor bases is typically six watts. 2.9 TUNE UP PROCEDURE AND LIST OF SEMICONDUCTOR DEVICES Alignment procedures and list of semi-conductor devices are included in the draft Production Test Requirement (PTR) a…

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Production Test Requirements (Including list of Semiconductor Devices) VHF-920 CPN 822-1250-001 Document CPN 815-1098-001 September 1, 2000 DRAFT - UNRELEASED NOTICE: The contents of this document are proprietary to Rockwell Collins, Inc. and shall not be disclosed, disseminated, copied, or used except for purposes expressly authorized in writing by Rockwell Collins, Inc. Rockw ell Collins, Inc. Melbourne Design Center Melbourne, Florida PTR VHF-920 VHF-920 PTR CPN 815-1098-001 Page 2 Prepared ByNameSignature / Date VHF-920 Project EngineerT. Przewoznik Approved By: Manager, Comm/Nav Equipment F.J. Studenberg Program Manager, VHF Datalink N.L. Guzak PTR VHF-920 VHF-920 PTR CPN 815-1098-001 Page 3 History of Changes Page NumberRev LtrDescription of Changes All- Original Release based on VHF-900B PTR, 827-2504-001, Rev K. Modified to add alignment and Tests for VDL Mode 2 Operatio n. Blue font represents changes from VHF-900B PTR VHF-920 VHF-920 PTR CPN 815-1098-001 Page 4 Table of Contents Table of Contents .......................................................................................................................... 4 1. Scope ....................................................................................................................................... 8 2. Associated Information.......................................................................................................... 9 3. Test Equipment Required .................................................................................................... 10 4. Test Conditions..................................................................................................................... 11 4.1Power Supply Voltages .................................................................................................... 11 4.2Temperature..................................................................................................................... 11 4.3Humidity ........................................................................................................................... 11 4.4Warmup ............................................................................................................................ 11 4.5Atmospheric Pressure...................................................................................................... 11 4.6Transmit Duty Cycle.........................................................................................................11 4.7Standard Co nditions and Test Information...................................................................... 11 4.8Operating Frequencies VS ICAO Channel Designators ................................................. 12 5. Preliminary Test and Adjustments ..................................................................................... 14 5.1Mechanical Co nstruction.................................................................................................. 14 5.2Presets ............................................................................................................................. 14 5.3Test Equipment Interco nnectio ns .................................................................................... 14 5.4Test Fixture Initial Settings...............................................................................................14 5.4.1Test Sequence .......................................................................................................... 14 5.4.2Software Load Procedure.......................................................................................... 14 5.4.3Initial Power Up Tests ............................................................................................... 14 5.5Calibration Variables ........................................................................................................14 5.5.1System Processor VCXO Calibration ....................................................................... 16 5.6Receiver Alignment ..........................................................................................................16 5.6.1Simulcom Initial Value ............................................................................................... 16 5.6.2Receiver Compressor................................................................................................ 16 5.6.3Receiver Voice Audio Output .................................................................................... 16 5.6.4Preselector Alignment ............................................................................................... 16 5.6.5Simulcom Adjustment................................................................................................ 17 5.6.6Squelch Adjustment .................................................................................................. 17 5.6.6.1 25 kHz Noise Squelch............................................................................................ 17 5.6.6.2 Carrier Squelch ...................................................................................................... 17 5.6.6.3 8.33 kHz Noise Squelch......................................................................................... 17 5.7Transmitter Alignment ...................................................................................................... 18 5.7.1Transmit Reflectio n Coefficient ................................................................................. 18 5.7.2Transmit Q Channel Gain and Offset ....................................................................... 18 5.7.3Transmitter Phasing Preset....................................................................................... 18 PTR VHF-920 VHF-920 PTR CPN 815-1098-001 Page 5 5.7.4Bias Adjustment......................................................................................................... 19 5.7.5Analog Voice and Analog Data Microphone Compressor..........................…

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CPN 653-9908-304Page 1 FCC CERTIFICATION REPORT FOR VHF-920 VHF COMMUNICATIONS TRANSCEIVER CPN 653-9908-304 ORIGINAL ON FILE IN MELBOURNE DESIGN CENTER VAULT AUGUST 27, 2000 Rockwell Collins, Inc. Cedar Rapids, Iowa 52904 ------ Proprietary ------ This information Shall Only Be Disseminated Outside the Company When a Proprietary Information Exchange is Signed and Specifies This Information to be Exchanged. FCC Certification Tests for the VHF-920 Communications Transceiver CPN: 653-9908-304August 27, 2000Page: 2 PREPARED BY ____________________ T . PRZEWOZNIK VHF-920 PROJECT ENGINEER APPROVED BY _____________________ F.J. STUDENBERG VHF COMM / NAV GROUP MANAGER Signatures on Original Page On File in Melbourne Design Center Vault FCC Certification Tests for the VHF-920 Communications Transceiver CPN: 653-9908-304August 27, 2000Page: 3 TABLE OF CONTENTS Page 1. PRODUCT DESCRIPTION – EXHIBIT A................................................................5 2. TECHNICAL REPORT – EXHIBIT B......................................................................6 3. INSTALLATION AND OPERATING INSTRUCTIONS – EXHIBIT C....................13 4. VHF-920 TUNE UP INSTRUCTIONS – EXHIBIT D...............................................14 5. SCHEMATICS OF VHF-920 – EXHIBIT E............................................................15 6. NAMEPLATE LABEL DRAWING – EXHIBIT F...................................................16 7. EQUIPMENT PHOTOGRAPH - EXTERNAL VIEWS - EXHIBIT G........................17 8. EQUIPMENT PHOTOGRAPH – INTERNAL VIEWS - EXHIBIT H........................21 9. TRANSMITTER PERFORMANCE TESTS – EXHIBIT I........................................33 10.FAA NOTIFICATION - EXHIBIT J.....................................................................69 11.SPURIOUS RADIATION MEASURMENT REPORT - EXHIBIT K......................70 FCC Certification Tests for the VHF-920 Communications Transceiver CPN: 653-9908-304August 27, 2000Page: 4 CERTIFICATE The VHF-920 has been tested in accordance with the requirements contained in the appropriate Commission regulations. To the best of my knowledge, these tests were performed using measurement procedures consistent with industry or Commission standards and demonstrate that the VHF-920 complies with the appropriate standards. Each unit manufactured, imported, or marketed, as defined in the Commission’s regulations, will conform to the sample(s) tested within the variations that can be expected due to quantity production and testing on a statistical basis. I hereby certify that the tests described in this report were performed at my direction and under my supervision, and that the results and test data contained in this report truly and accurately show the performance of the transmitter in the VHF-920 transceiver. I further certify that the ancillary information contained herein accurately reflects the design, installation requirements, alignment procedures, and operational instructions of and for this transceiver. Signed. ____________________________ Tom Przewoznik Project Engineer, VHF-920 VHF Comm/Nav Group CNS Engineering Melbourne Design Center Rockwell Collins, Inc. (Signature on Original File in Melbourne Design Center Vault) QUALIFICATIONS OF CERTIFYING ENGINEER T.J. Przewoznick, Project Engineer, VHF-920 program, VHF Comm/Nav Group, Rockwell Collins, Inc. BSEE 1985, University of Massachusetts MSEE 1988, Syracuse University MBA 1997, University of Central Florida I have a total of 15 years of experience in the design and testing of both Hardware and Software aspects of Avionics Equipment. FCC Certification Tests for the VHF-920 Communications Transceiver CPN: 653-9908-304August 27, 2000Page: 5 1. PRODUCT DESCRIPTION – EXHIBIT A 1.1 SCOPE This report and its exhibits provide the information required by parts 2 and 87 of the FCC Rules and Regulations for Certification of the transmitter portion of the VHF-920 VHF Communications Transceiver. The Collins part number for the VHF-920 is 822-1250-001. The units tested were engineering units representative of production configurations of the VHF-920, Collins part number 822-1250-001. Unless otherwise noted, all tests were conducted at the Rockwell Collins Melbourne Design Center in Melbourne, FL. 1.2 EQUIPMENT DESCRIPTION The VHF-920 VHF Transceiver is a solid state, 2280 channel AM transceiver designed to provide air-to-air or air-to-ground AM voice or analog data communications in the 118.000 to 137.000 MHz Aeronautical communications band. It operates in communications systems having 25 kHz or 8.33 kHz channel spacing. In addition to AM operation voice or analog data operation, the VHF-920 will provide air-to-ground packet digital data communications (VDL Mode 2) in the 118.000 to 136.975 MHz band in communications systems having 25 kHz channel spacing. The unit operates on 27.5 VDC and is packaged in an ARINC 600 standard 3 MCU configuration. 1.2.1 CERTIFICATION BASED ON SIMILARITY The VHF-920 is a derivative design of the VHF-900B, CPN 822-1047-003 which received FCC Type Acceptance in 1997 (FCC ID AJKPN822-1047). The VHF-920 uses the same hardware platform and provides the same functions (AM Voice and data) as the Type Accepted VHF-900B. By upgrade of software, the VHF-920 also provides new additional capability for VDL Mode 2 operation. VDL Mode 2 is a digital modulation using a 31.5 kb/sec D8PSK waveform. Because of the similarity of VHF-920 Hardware and Voice/Analog Data operations with the VHF-900B, the Certification testing of the VHF-920 will be by similarity to the VHF-900B with only with new testing and results provided for test cases related to VDL Mode 2 operation. Test results based on similarity will be those provided for Certification of the VHF-900B in Rockwell Collins document 653-9907-100 (originally submitted for Type Approval of the VHF-900B in 1997). For completeness, these test results are included in this document. While not required for this report, testing for FCC Part 15 Dec…

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Production Test Requirements VHF-920 CPN 822-1250-001 Document CPN 815-1098-001 September 1, 2000 DRAFT - UNRELEASED NOTICE: The contents of this document are proprietary to Rockwell Collins, Inc. and shall not be disclosed, disseminated, copied, or used except for purposes expressly authorized in writing by Rockwell Collins, Inc. Rockwell Collins, Inc. Melbourne Design Center Melbourne, Florida PTR VHF-920 VHF-920 PTR CPN 815-1098-001 Page 2 Prepared ByNameSignature / Date VHF-920 Project EngineerT. Przewoznik Approved By: Manager, Comm/Nav Equipment F.J. Studenberg Program Manager, VHF Datalink N.L. Guzak PTR VHF-920 VHF-920 PTR CPN 815-1098-001 Page 3 History of Changes Page NumberRev LtrDescription of Changes All- Original Release based on VHF-900B PTR, 827-2504-001, Rev K. Modified to add alignment and Tests for VDL Mode 2 Operatio n. Blue font represents changes from VHF-900B PTR VHF-920 VHF-920 PTR CPN 815-1098-001 Page 4 Table of Contents Table of Contents .......................................................................................................................... 4 1. Scope ....................................................................................................................................... 8 2. Associated Information.......................................................................................................... 9 3. Test Equipment Required .................................................................................................... 10 4. Test Conditions..................................................................................................................... 11 4.1Power Supply Voltages .................................................................................................... 11 4.2Temperature..................................................................................................................... 11 4.3Humidity ........................................................................................................................... 11 4.4Warmup ............................................................................................................................ 11 4.5Atmospheric Pressure...................................................................................................... 11 4.6Transmit Duty Cycle.........................................................................................................11 4.7Standard Co nditions and Test Information...................................................................... 11 4.8Operating Frequencies VS ICAO Channel Designators ................................................. 12 5. Preliminary Test and Adjustments ..................................................................................... 14 5.1Mechanical Co nstruction.................................................................................................. 14 5.2Presets ............................................................................................................................. 14 5.3Test Equipment Interco nnectio ns .................................................................................... 14 5.4Test Fixture Initial Settings...............................................................................................14 5.4.1Test Sequence .......................................................................................................... 14 5.4.2Software Load Procedure.......................................................................................... 14 5.4.3Initial Power Up Tests ............................................................................................... 14 5.5Calibration Variables ........................................................................................................14 5.5.1System Processor VCXO Calibration ....................................................................... 16 5.6Receiver Alignment ..........................................................................................................16 5.6.1Simulcom Initial Value ............................................................................................... 16 5.6.2Receiver Compressor................................................................................................ 16 5.6.3Receiver Voice Audio Output .................................................................................... 16 5.6.4Preselector Alignment ............................................................................................... 16 5.6.5Simulcom Adjustment................................................................................................ 17 5.6.6Squelch Adjustment .................................................................................................. 17 5.6.6.1 25 kHz Noise Squelch............................................................................................ 17 5.6.6.2 Carrier Squelch ...................................................................................................... 17 5.6.6.3 8.33 kHz Noise Squelch......................................................................................... 17 5.7Transmitter Alignment ...................................................................................................... 18 5.7.1Transmit Reflectio n Coefficient ................................................................................. 18 5.7.2Transmit Q Channel Gain and Offset ....................................................................... 18 5.7.3Transmitter Phasing Preset....................................................................................... 18 5.7.4Bias Adjustment......................................................................................................... 19 5.7.5Analog Voice and Analog Data Microphone Compressor........................................ 19 PTR VHF-920 VHF-920 PTR CPN 815-1098-001 Page 5 5.7.6Transmitter Phasing …

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