Exhibit 1 Letter

0565-EX-ST-2009 Text Documents

Garmin International

2009-12-01ELS_102930

Federal Communications Commission Experimental Radio service Subject: Request for Special Temporary Authorization (STA) Ref: 0565-EX-ST-2009 (STA File # for the current application) Ref: 0219-EX-ST-2009 (STA File # for similar previously approved STA) This request for a Special Temporary Authorization (STA) is submitted in accordance with CFR 47, part 5.61. The purpose of this STA is to perform Low Level Swept Coupling (LLSC) testing on a Part 23, 25, 27, or 29 aircraft, for the purpose of aircraft threat development for a High Intensity Radiated Field (HIRF) environment. The threat development determines the required equipment bench test levels. This test is required to satisfy the HIRF certification directives found in Exhibit 2. Further details are provided below. Name and Address of Applicant: Garmin International 1200 E.151st Street Olathe, KS 66062 Attn: David Kerr, Aviation Engineering Need for special action: The tests to be conducted include the use of swept frequencies from 500 KHz to 18 GHz with the exception of prohibited frequency bands. Testing using widely spaced discrete frequencies would miss possible critical resonant frequencies. The proposed testing will include the following. From approximately 500 KHz to 400 MHz, the aircraft under test will be illuminated with a known low level swept frequency electromagnetic field and the resulting induced cable bundle currents will be measured on the aircraft using current probes. From 100 MHz to 18 GHz, the aircraft under test will be illuminated with a known low level swept frequency electromagnetic field and the resulting electromagnetic field strengths will be measured within the various compartments of the aircraft. Time and Date: Testing is planned to occur between the dates of December 7, 2009 and June 7, 2010. Test Location: Proposed testing will occur at the Garmin Flight test facility at New Century Airport in New Century, KS. This is a company owned facility located at the coordinates below. Latitude: North 38 50 33 Longitude: West 94 53 39 Field Generation and Monitoring Test Equipment: Reference Exhibit 2 for equipment information Frequency Bands and Power: Reference Exhibit 2 for further supplemental information on test frequency, modulation, and Effective Radiated Power (ERP). Should you require additional information please contact David Kerr at 913 440 5208 or Email david.kerr@garmin.com. David Kerr Garmin International 1200 E. 151st Street Olathe, KS 66062


Document Created: 2009-12-01 15:26:13
Document Modified: 2009-12-01 15:26:13
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