Supplemental Information

0219-EX-ST-2009 Text Documents

Garmin International

2009-05-20ELS_98373

Exhibit 2 – Supplemental Information Table of Contents 1. Purpose...............................................................................................................................................1 2. Applicable HIRF Directives .................................................................................................................1 2.1. Applicable Code of Federal Regulations (CFR).........................................................................1 2.2. FAA Guidance ............................................................................................................................1 2.3. Industry Guidance ......................................................................................................................1 3. Equipment Information........................................................................................................................2 4. Transmitted Signal Information...........................................................................................................3 5. “Stop Buzzer” Contacts.......................................................................................................................3 1. Purpose This exhibit provides supplemental Information in support of the application for Special Temporary Authorization (STA). 2. Applicable HIRF Directives This special Temporary Authorization is required to conduct testing necessary to support aircraft certification for High Intensity Radiated Fields (HIRF). The test data will be used to assure compliance with HIRF requirements as specified by the following directives. 2.1. Applicable Code of Federal Regulations (CFR) 14CFR 23.1308 High-intensity Radiated Fields (HIRF) Protection 2.2. FAA Guidance AC20-158 The Certification of Electrical and Electronic Systems for Operation In The High Intensity Radiated Fields (HIRF) Environment. FAA 8110.71 Guidance for the Certification of Aircraft Operating in High Intensity Radiated Field (HIRF) Environments 2.3. Industry Guidance RTCA DO-160E Environmental Conditions and Test Procedures for Airborne Equipment ED90A Radio Frequency Susceptibility Test Procedure ED107 Guide to Certification of Aircraft in a High Intensity Field (HIRF) Environment SAE ARP5583 Guide to Certification of Aircraft in a High Intensity Radiated Field (HIRF) Environment.

3. Equipment Information All primary field generation and monitoring equipment is listed in Table 1 below. Table 1: Equipment List Item Manufacturer Model (See note) Generator Agilent E8257D Spectrum Analyzer Agilent E4440A HF Amplifier ENI 5100L Microwave Amplifier Miteq 100M-20G 30dB 20dBm Amplifier Coax Cables Miscellaneous 100MHz-18GHz Low Loss Coax Fiber Optic Reciever System PPM Fiber optic processing system Fiber Optic Cable Miscellaneous Fiber optic cables Directional Coupler Amplifier Research DC2500 Current Probe Eaton 94111-1 Horn Antenna ETS Lindgren 3115 Dipole Antenna Custom 10MHz Dipole Antenna Bi-Log Antenna ETS Lindgren 3142C D-dot Sensor EG & G ACD-10A Broadband Rx Antenna Custom 100M-18GHz Rx Antenna Note: Equivalent equipment may be substituted as necessary Table 2: Antenna VSWR and 3dB Beamwidth Antenna VSWR 3dB Beamwidth Model 3115 Horn 3142 Bi- 2:1 Average above 80MHz Log

4. Transmitted Signal Information Frequency The HIRF directives referenced in Section 2 of this exhibit provide guidance as to how to perform Low Level Coupling (LLC) testing. This guidance specifies the use of a signal generator and receiver system setup in a tracking generator configuration such that the test frequency is swept continuously across a specified frequency band. Testing using swept frequencies rather than widely spaced discrete frequencies allows for more accurate measurement of aircraft and wiring resonant frequencies. This method also simplifies the test setup and minimizes frequency dwell time. The effective dwell time at each swept frequency is on the order of 1ms. We request permission to perform swept frequency testing across all approved test frequency bands as listed in the application. Frequencies reserved for emergency services or local aircraft control will be omitted from the test. Modulation All testing is performed using a Continuous Wave (CW) signal (i.e. no modulation). Therefore, no actual data is being transmitted during the test. Power Transmitted power must be high enough to allow accurate monitoring using a sensitive receiver system. All transmitted power levels will remain less than the specified band specific Effective Radiated Power (ERP) as specified in the application. The power levels requested are for maximum Effective Isotropic Radiated Power (EIRP) at the transmitter. Coordination with the local FCC and FAA can be accomplished as necessary. 5. “Stop Buzzer” Contacts The following contacts can be contacted at any time to stop the test in case of a conflict. Steve Haycock, Engineer Desk: 913-440-2284 Aaron Jones, Engineer Desk: 913-440-5065 David Kerr, Engineer Desk: 913-440-5208 Praf Patel, Engineer Desk: 913-440-5422 Brad Fischer, Flight Operations Desk: 913-440-8421


Document Created: 2009-05-20 12:16:21
Document Modified: 2009-05-20 12:16:21
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