Sec.  25.221   Blanket Licensing provisions for Earth Stations on Vessels (ESVs)
receiving in the 3700–4200 MHz (space-to-Earth) frequency band and transmitting
in the 5925–6425 MHz (Earth-to-space) frequency band, operating with
Geostationary Satellites in the Fixed-Satellite Service.

   (a) All applications for licenses for ESVs transmitting in the 5925–6425 MHz
   (Earth-to-space) bands to geostationary-orbit satellites in the
   fixed-satellite service shall provide sufficient data to demonstrate that
   the ESV operations meet the following criteria, which are ongoing
   requirements that govern all ESV licensees and operations in these bands:

   (1) The off-axis EIRP spectral density for co-polarized signals, emitted
   from the ESV, in the plane of the geostationary satellite orbit as it
   appears at the particular earth station location (i.e., the plane determined
   by the focal point of the antenna and the line tangent to the arc of the
   geostationary satellite orbit at the position of the target satellite),
   shall not exceed the following values:

   26.3 − 25log(Θ) − 10log(N) dBW/4kHz for 1.0 ° ≤ Θ ≤ 7.0 °

   5.3 − 10log(N)dBW/4kHz for 7.0 ° < Θ ≤ 9.2 °

   29.3 − 25log(Θ) − 10log(N) dBW/4kHz for 9.2 ° < Θ ≤ 48 °

   −12.7 − 10log(N) dBW/4kHz for 48 ° < Θ ≤ 180 °

   where Θ is the angle in degrees from the axis of the main lobe. For an ESV
   network using frequency division multiple access (FDMA) or time division
   multiple access (TDMA) technique, N is equal to one. For an ESV network
   using code division multiple access (CDMA) technique, N is the maximum
   number of co-frequency simultaneously transmitting earth stations in the
   same satellite receiving beam.

   (2) In all other directions, the off-axis EIRP spectral density for
   co-polarized signals emitted from the ESV shall not exceed the following
   values:

   29.3 − 25log(Θ) − 10log(N) dBW/4kHz for 1.0 ° ≤ Θ ≤ 48 °

   −12.7 − 10log(N) dBW/4kHz for 48 ° < Θ ≤ 180 °

   where Θ and N are defined as set forth in paragraph (a)(1) of this section.

   (3) For Θ > 7 °, the values given in paragraphs (a)(1) of this Section may be
   exceeded by no more than 10% of the earth station antenna sidelobes,
   provided no individual sidelobe exceeds the criteria given by more than 3
   dB.

   (4) In all directions, the off-axis EIRP spectral density for
   cross-polarized signals emitted from the ESV shall not exceed the following
   values:

   16.3 − 25log(Θ) − 10log(N) dBW/4kHz for 1.8 ° ≤ Θ ≤ 7.0 °

   −4.7 − 10log(N) dBW/4kHz for 7.0 ° < Θ ≤ 9.2 °

   where Θ and N are defined as set forth in paragraph (a)(1) of this section.

   (5) For non-circular ESV antennas, the major axis of the antenna will be
   aligned with the tangent to the geostationary satellite orbital arc at the
   target satellite point, to the extent required to meet specified off-axis
   e.i.r.p. criteria.

   (6) A pointing error of less than 0.2 °, between the orbital location of the
   target satellite and the axis of the main lobe of the ESV antenna.

   (7) All emissions from the ESV shall automatically cease within 100
   milliseconds if the angle between the orbital location of the target
   satellite and the axis of the main lobe of the ESV antenna exceeds 0.5 °, and
   transmission will not resume until such angle is less than 0.2 °.

   (8) There shall be a point of contact in the United States, with phone
   number and address included with the application, available 24 hours a day,
   seven days a week, with authority and ability to cease all emissions from
   the ESVs, either directly or through the facilities of a U.S. Hub or a Hub
   located in another country with which the U.S. has a bilateral agreement
   that enables such cessation of emissions.

   (9) ESVs that exceed the radiation guidelines of Section 1.1310
   Radiofrequency radiation exposure limits must provide, with their
   environmental assessment, a plan for mitigation of radiation exposure to the
   extent required to meet those guidelines.

   (10) ESV operators transmitting in the 5925–6425 MHz (Earth-to-space)
   frequency bands to geostationary satellites in the fixed-satellite service
   (FSS) shall not seek to coordinate, in any geographic location, more than 36
   MHz of uplink bandwidth on each of no more than two GSO FSS satellites.

   (11) There shall be an exhibit included with the application describing the
   geographic area(s) in which the ESVs will operate.

   (12) ESVs shall not operate in the 5925–6425 MHz (Earth-to-space) and
   3700–4200 MHz (space-to-Earth) frequency bands on vessels smaller than 300
   gross tons.

   (b) Applications for ESV operation in the 5925–6425 MHz band to
   geostationary satellites in the fixed-satellite service must include, in
   addition to the particulars of operation identified on Form 312, and
   associated Schedule B, the following data, for each earth station antenna
   type:

   (1) A series of e.i.r.p. density charts or tables, calculated for a
   production earth station antenna, based on measurements taken on a
   calibrated antenna range at 6.0 GHz, with the off-axis e.i.r.p. envelope set
   forth in paragraphs (a)(1) through (a)(4) of this section superimposed, as
   follows:

   (i) Showing off-axis co-polarized e.i.r.p. spectral density in the azimuth
   plane, for off-axis angles from minus 10 ° to plus 10 ° and from minus 180 ° to
   plus 180 °.

   (ii) Showing off-axis co-polarized e.i.r.p. spectral density in the
   elevation plane, at off-axis angles from 0 ° to plus 30 °.

   (iii) Showing off-axis cross-polarized e.i.r.p. spectral density in the
   azimuth plane, at off-axis angles from minus 10 ° to plus 10 °.

   (iv) Showing off-axis cross-polarized e.i.r.p. spectral density in the
   elevation plane, at off-axis angles from minus 10 ° to plus 10 °; or

   (2) A series of gain charts or tables, for a production earth station
   antenna, measured on a calibrated antenna range at 6.0 GHz, with the Earth
   station antenna gain envelope set forth in  Sec. 25.209(a) and (b) superimposed,
   for the same planes and ranges enumerated in paragraphs (b)(1)(i) through
   (b)(1)(iv) of this section, that, combined with input power density entered
   in Schedule B, demonstrates that the off-axis e.i.r.p. spectral density
   envelope set forth in paragraphs (a)(1) through (a)(4) of this section will
   be met; or

   (3) A certification that the antenna conforms to the gain pattern criteria
   of  Sec. 25.209(a) and (b), that, combined with input power density entered in
   Schedule B, demonstrates that the off-axis e.i.r.p. spectral density
   envelope set forth in paragraphs (a)(1) through (a)(4) of this section will
   be met.

   (c) ESVs receiving and transmitting in the 3700–4200 MHz (space-to-Earth)
   and 5925–6425 MHz (Earth-to-space) frequency bands shall operate with the
   following provisions:

   (1) For each ESV transmitter, a record of the ship location (i.e.,
   latitude/longitude), transmit frequency, channel bandwidth and satellite
   used shall be time annotated and maintained for a period of not less than 1
   year. Records will be recorded at time intervals no greater than every 20
   minutes while the ESV is transmitting. The ESV operator will make this data
   available upon request to a coordinator, fixed system operator,
   fixed-satellite system operator, or the Commission within 24 hours of the
   request.

   (2) ESV operators communicating with vessels of foreign registry must
   maintain detailed information on each vessel's country of registry and a
   point of contact for the relevant administration responsible for licensing
   ESVs.

   (3) ESV operators shall control all ESVs by a Hub earth station located in
   the United States, except that an ESV on U.S.-registered vessels may operate
   under control of a Hub earth station location outside the United States
   provided the ESV operator maintains a point of contact within the United
   States that will have the capability and authority to cause an ESV on a
   U.S.-registered vessel to cease transmitting if necessary.

   (4) ESVs, operating while docked, that complete coordination with
   terrestrial stations in the 3700–4200 MHz band in accordance with  Sec. 25.251,
   shall receive protection from such terrestrial stations in accordance with
   the coordination agreements, for 180 days, renewable for 180 days.

   (d) ESVs in motion shall not claim protection from harmful interference from
   any authorized terrestrial stations or lawfully operating satellites to
   which frequencies are either already assigned, or may be assigned in the
   future in the 3700–4200 MHz (space-to-Earth) frequency band.

   (e) ESVs operating in the 5925–6425 MHz (Earth-to-space) band, within 200 km
   from the baseline of the United States, or within 200 km from a fixed
   service offshore installation, shall complete coordination prior to
   operation. The coordination method and the interference criteria objective
   shall be determined by the frequency coordinator. The details of the
   coordination shall be maintained and available at the frequency coordinator,
   and shall be filed with the Commission to be placed on Public Notice.
   Operation of each individual ESV may commence immediately after the Public
   Notice is released that identifies the notification sent to the Commission.
   Continuance of operation of that ESV for the duration of the coordination
   term shall be dependent upon successful completion of the normal public
   notice process. If any objections are received to the coordination prior to
   the end of the 30-day comment period of the Public Notice, the licensee
   shall immediately cease operation of that particular station until the
   coordination dispute is resolved and the ESV licensee informs the Commission
   of the resolution.

   (f) ESV operators must automatically cease transmission if the ESV operates
   in violation of the terms of its coordination, including, but not limited
   to, conditions related to speed of the vessel or if the ESV travels outside
   the coordinated area, if within 200 km from the baseline of the United
   States, or within 200 km from a fixed service offshore installation.
   Transmissions may be controlled by the ESV network. The frequency
   coordinator may decide whether ESV operators should automatically cease
   transmissions if the vessel falls below a prescribed speed within a
   prescribed geographic area.

   [ 70 FR 4784 , Jan. 31, 2005, as amended at  70 FR 33377 , June 8, 2005]