Source: https://www.law.cornell.edu/cfr/text/47/90.674
Timestamp: 2019-01-22 19:34:05
Document Index: 560940758

Matched Legal Cases: ['art 90', '§ 90', '§ 90', 'art 22', 'art 22', '§ 90', 'art 22', 'art 22']

47 CFR 90.674 - Interference resolution procedures before, during and after band reconfiguration. | US Law | LII / Legal Information Institute
CFR › Title 47 › Chapter I › Subchapter D › Part 90 › Subpart S › Section 90.674
47 CFR 90.674 - Interference resolution procedures before, during and after band reconfiguration.
§ 90.674 Interference resolution procedures before, during and after band reconfiguration.
(a)Initial Notification. Any non-cellular licensee operating in the 806-824/851-869 MHz band who reasonably believes it is receiving unacceptable interference, as described in § 90.672, shall provide an initial notification of the interference incident. This initial notification of an interference incident shall be sent to all part 22 of this chapter Cellular Radiotelephone licensees and ESMR licensees who operate cellular base stations (“cell sites”) within 1,524 meters (5,000 feet) of the interference incident.
(b)Interference analysis. ESMR licensees - who receive an initial notification described in paragraph (a) of this section - shall perform a timely analysis of the interference to identify the possible source. Immediate on-site visits may be conducted when necessary to complete timely analysis. Interference analysis must be completed and corrective action initiated within 48 hours of the initial complaint from a public safety/CII licensee. This response time may be extended to 96 hours after the initial complaint from other non-cellular licensees provided affected communications on these systems are not safety related. Corrective action may be delayed if the affected licensee agrees in writing (which may be, but is not required to be, recorded via e-mail or other electronic means) to a longer period.
(c)Mitigation Steps.
(1) All 800 MHz cellular system licensees and part 22 of this chapter Cellular Radiotelephone licensees who are responsible for causing unacceptable interference shall take all affirmative measures to resolve such interference. 800 MHz cellular system licensees found to contribute to harmful interference, as defined in § 90.672, shall resolve such interference in the shortest time practicable. 800 MHz cellular system licensees and part 22 of this chapter Cellular Radiotelephone licensees must provide all necessary test apparatus and technical personnel skilled in the operation of such equipment as may be necessary to determine the most appropriate means of timely eliminating the interference. However, the means whereby interference is abated or the cell parameters that may need to be adjusted is left to the discretion of involved 800 MHz cellular system licensees and/or part 22 of this chapter Cellular Radiotelephone licensees, whose affirmative measures may include, but not be limited to, the following techniques:
(3)Discontinuing operations when clear and imminent danger exists. When a public safety licensee determines that a continuing presence of interference constitutes a clear and imminent danger to life or property, the licensee causing the interference must discontinue the associated operation immediately, until a remedy can be identified and applied. The determination that a continuing presence exists that constitutes a clear and imminent danger to life or property, must be made by written statement that:
[ 69 FR 67849, Nov. 22, 2004, as amended at 70 FR 76711, Dec. 28, 2005; 71 FR 69038, Nov. 29, 2006]
47 CFR 22.972 — Interference Resolution Procedures.
47 CFR 22.879 — Interference Resolution Procedures.
47 CFR 90.673 — Obligation to Abate Unacceptable Interference.