https://apps.fcc.gov/edocs_public/attachmatch/DOC-344038A1.pdf https://apps.fcc.gov/edocs_public/attachmatch/DOC-344038A2.pdf https://apps.fcc.gov/edocs_public/attachmatch/DOC-344038A3.pdf https://apps.fcc.gov/edocs_public/attachmatch/DOC-344038A4.pdf