§  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.

   Link to an amendment published at  74 FR 47102 , Sept. 15, 2009.

   (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 § 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 § 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
   § 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]