{"data":{"id":"us/47-cfr-80.753","jurisdiction":"us","citation":"47 CFR 80.753","heading":"Signal strength requirements at the service area contour.","body":"(a) The requirements for reception by a marine VHF shipboard receiver are satisfied if the field strength from the coast station, calculated in accordance with § 80.771 is at least + 17 dBu above one microvolt.\n(b) These field strengths, voltages and powers at the receiver input are equivalent:\n(1) −132 dBW (decibels referred to 1 watt).\n(2) 1.8 microvolts across 50 ohms.\n(3) + 17 dBu (decibels referred to 1 microvolt per meter).\n(4) 7 microvolts per meter.","path":["Title 47—Telecommunication","CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION","SUBCHAPTER D—SAFETY AND SPECIAL RADIO SERVICES","PART 80—STATIONS IN THE MARITIME SERVICES","Subpart P—Standards for Computing Public Coast Station VHF Coverage"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-47.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:28Z","sha256":"1965aaf53d5fc4b3cae19ef5f0d576bc712fdb516f876be063ad4f7a1d7689bb","source_id":"us-cfr","stale":true,"prev":"us/47-cfr-80.751","next":"us/47-cfr-80.755"},"notice":"GroundRules: Original legal text. Not legal advice."}