47 CFR 25.281 - Automatic Transmitter Identification System (ATIS).

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§ 25.281 Automatic Transmitter Identification System (ATIS).
All satellite uplink transmissions carrying broadband video information shall be identified through the use of an automatic transmitter identification system as specified below.
(a) Effective March 1, 1991, all satellite video uplink facilities shall be equipped with an ATIS encoder meeting the specifications set forth in paragraph (d) of this section.
(b) All video uplink facilities utilizing a transmitter manufactured on or after March 1, 1991 shall be equipped with an ATIS encoder meeting the performance specifications set forth in paragraph (d) of this section and the encoder shall be integrated into the uplink transmitter chain in a method that cannot easily be defeated.
(c) The ATIS signal shall be a separate subcarrier which is automatically activated whenever any RF emissions occur. The ATIS information shall continuously repeat.
(d) The ATIS signal shall consist of the following:
(1) A subcarrier signal generated at a frequency of 7.1 MHz ±25 KHz and injected at a level no less than −26 dB (referenced to the unmodulated carrier). The subcarrier deviation shall not exceed 25 kHz peak deviation.
(2) The protocol shall be International Morse Code keyed by a 1200 Hz ±800 Hz tone representing a mark and a message rate of 15 to 25 words per minute. The tone shall frequency modulate the subcarrier signal.
(3) The ATIS signal as a minimum shall consist of the following:
(i) The FCC assigned earth station call sign;
(ii) A telephone number providing immediate access to personnel capable of resolving ongoing interference or coordination problems with the station;
(iii) A unique ten digit serial number of random number code programmed into the ATIS device in a permanent manner such that it cannot be readily changed by the operator on duty;
(iv) Additional information may be included within the ATIS data stream provided the total message length, including ATIS, does not exceed 30 seconds.
[55 FR 21551, May 25, 1990. Redesignated at 62 FR 5932, Feb. 10, 1997]

Title 47 published on 2013-10-01

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  • 2014-02-12; vol. 79 # 29 - Wednesday, February 12, 2014
    1. 79 FR 8308 - Comprehensive Review of Licensing and Operating Rules for Satellite Services
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      Final rule.
      The rules in this document contain information collection requirements that have not been approved by Office of Management and Budget. The Commission will publish a document in the Federal Register announcing such OMB approval, the effective date of all of the rule amendments adopted in the Report and Order, and the approval date of the incorporation by reference of a certain publication listed in the rule.
      47 CFR Part 25

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United States Code

Title 47 published on 2013-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 47 CFR 25 after this date.

  • 2014-02-19; vol. 79 # 33 - Wednesday, February 19, 2014
    1. 79 FR 9445 - Proposal To Enable Operation of a Terrestrial Broadband Network in Certain Mobile Satellite Service Spectrum
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      FEDERAL COMMUNICATIONS COMMISSION
      Proposed rule.
      Comments are due on or before May 5, 2014 and reply comments are due on or before June 4, 2014. Written comments on the proposed information collection requirements, subject to the Paperwork Reduction Act (PRA) of 1995, Public Law 104-13, should be submitted on or before April 21, 2014.
      47 CFR Part 25