Sec.  25.271   Control of transmitting stations.

   (a) The licensee of a facility licensed under this part is responsible for
   the proper operation and maintenance of the station.

   (b) The licensee of a transmitting earth station, other than an ESV,
   licensed under this part shall ensure that a trained operator is present on
   the earth station site, or at a designated remote control point for the
   earth station, at all times that transmissions are being conducted. No
   operator's license is required for a person to operate or perform
   maintenance on facilities authorized under this part.

   (c) Authority will be granted to operate a transmitting earth station, other
   than an ESV, by remote control only on the conditions that:

   (1) The parameters of the transmissions of the remote station monitored at
   the control point, and the operational functions of the remote earth
   stations that can be controlled by the operator at the control point, are
   sufficient to insure that the operations of the remote station(s) are at
   times in full compliance with the remote station authorization(s);

   (2) The earth station facilities are protected by appropriate security
   measures to prevent unauthorized entry or operations;

   (3) Upon detection by the license, or upon notification from the Commission
   of a deviation or upon notification by another licensee of harmful
   interference, the operation of the remote station shall be immediately
   suspended by the operator at the control point until the deviation or
   interference is corrected, except that transmissions concerning the
   immediate safety of life or property may be conducted for the duration of
   the emergency; and

   (4) The licensee shall have available at all times the technical personnel
   necessary to perform expeditiously the technical servicing and maintenance
   of the remote stations.

   (5) International VSAT system operators are required to maintain a control
   point within the United States, or to maintain a point of contact within the
   United States available 24 hours a day, 7 days a week, with the ability to
   shut off any earth station within the VSAT network immediately upon
   notification of harmful interference.

   (d) The licensee shall insure that the licensed facilities are properly
   secured against unauthorized access or use whenever an operator is not
   present at the transmitter.

   (e) The licensee of an NGSO FSS system operating in the 10.7–14.5 GHz bands
   shall maintain an electronic web site bulletin board to list the satellite
   ephemeris data, for each satellite in the constellation, using the North
   American Aerospace Defense Command (NORAD) two-line orbital element format.
   The orbital elements shall be updated at least once every three days.

   (f) Rules for control of transmitting ESVs are provided in  Sec.  Sec. 25.221 and
   25.222.

   [ 58 FR 13421 , Mar. 11, 1993, as amended at  66 FR 10631 , Feb. 16, 2001;  70 FR 4787 , Jan. 31, 2005;  70 FR 32257 , June 2, 2005]