Supplemental Information

0035-EX-ST-2017 Text Documents

Garmin International

2017-01-11ELS_186473

                                                    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 (STA) 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)
     14 CFR 23.1308                       High-intensity Radiated Fields (HIRF) Protection
     14 CFR 25.1317                       High-intensity Radiated Fields (HIRF) Protection
     14 CFR 27.1317                       High-intensity Radiated Fields (HIRF) Protection
     14 CFR 29.1317                       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/F/G                     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 ARP5583A                         Guide to Certification of Aircraft in a High Intensity Radiated Field (HIRF)
                                          Environment.




Exhibit 2: Supplemental Information                                                                                              Page 1 of 3


       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)
         Signal Generator                    Agilent                 E8257D
         Spectrum Analyzer                   Agilent                 N9010A
         HF Amplifier                        ENI                     5100L
         Microwave Amplifier                 Miteq                   100M-20G 30dB 20dBm Amplifier
         Coax Cables                         Miscellaneous           Various DC-18GHz Low Loss Coax
         Fiber Optic Receiver System         PPM                     Fiber optic processing system
         Fiber Optic Cable                   Miscellaneous           Fiber optic cables
         Directional Coupler                 Amplifier Research DC2500
         Current Probe                       Eaton                   94111-1
         Tx Dipole Antenna                   Custom                  10MHz Dipole Antenna
         Tx Bi-Log Antenna 30MHz-1GHz ETS Lindgren                   3142C
         Tx Horn Antenna 400MHz-1GHz AR                              ATH400M1G
         Tx Horn Antenna 1GHz-18GHz          ETS Lindgren            3115
         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: Tx Antenna VSWR and 3dB Beamwidth
Antenna Model                       VSWR                               3dB Beamwidth




ETS 3142 Bi-Log   2:1 Average above 80MHz




                                                               Varying from approximately 60º at 400MHz to
AR ATH400M1G      Max 2.5:1, Average 1.5:1
                                                               35º at 1Ghz.




ETS 3115 Horn




       Exhibit 2: Supplemental Information                                               Page 2 of 3


4. Transmitted Signal Information
Frequency
Various documents 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 a more accurate measurement of aircraft and wiring resonant responses. This
method also simplifies the test setup and minimizes frequency dwell time. The effective dwell time at
each swept frequency is much less than 1s. We request permission to perform swept frequency testing
across all approved test frequency bands 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 transmit
antenna. 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.

       Name                   Department                     Desk #
   Steve Haycock           EMC Engineering                913-440-2284
    Aaron Jones            EMC Engineering                913-440-5065
     David Kerr            EMC Engineering                913-440-5208
     Praf Patel            EMC Engineering                913-440-5422
      Nick Filla           EMC Engineering                913-440-2650
     Colin Curry           EMC Engineering                913-440-5434
   Scott Goergen          Aircraft Certification          913-440-8437




Exhibit 2: Supplemental Information                                                      Page 3 of 3



Document Created: 2017-01-11 09:33:49
Document Modified: 2017-01-11 09:33:49

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