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Appendix 1 FIGURE A1-6 — GENERIC ATTENUATION VALUES — All Aircraft 100 MHz to 18 GHz Attenuation (dB) 35 30 32 dB 25 20 20 dB 15 10 5 12 dB 6 dB 0
0.1 1 10 0 dB 100 Frequency – GHz A1-7
_________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ________________________________________________________________ 05/30/14 AC 20-158A
Appendix 2 Appendix 2. Advisory Circular Feedback Information If you have comments or recommendations for improving this advisory circular (AC), or suggestions for new items or subjects to be added, or if you find an error, you may let us know about by using this page as a template and 1) emailing it to 9-AWA-AVS-AIR500-Coord@faa.gov or 2) faxing it to the attention of the AIR Directives Management Officer at 202-267-3983.
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