[Code of Federal Regulations]
[Title 47, Volume 2]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR25.149]

[Page 303-305]
 
                       TITLE 47--TELECOMMUNICATION
 
                    CHAPTER I--FEDERAL COMMUNICATIONS
                         COMMISSION (CONTINUED)
 
PART 25--SATELLITE COMMUNICATIONS--Table of Contents
 
                  Subpart B--Applications and Licenses
 
Sec. 25.149  Application requirements for ancillary terrestrial components in the mobile-satellite service networks operating in the 1.5./1.6 GHz, 1.6/2.4 GHz 
          and 2 GHz mobile-satellite service.

    (a) Applicants for ancillary terrestrial component authority shall 
demonstrate that the applicant does or will comply with the following 
through certification or explanatory technical exhibit, as appropriate:
    (1) ATC shall be deployed in the forward-band mode of operation 
whereby the ATC mobile terminals transmit in the MSS uplink bands and 
the ATC base stations transmit in the MSS downlink bands in portions of 
the 2000-2020 MHz/2180-2200 MHz bands (2 GHz band), the 1626.5-1660.5 
MHz/1525-1559 MHz bands (L-band), and the 1610-1626.5 MHz/2483.5-2500 
MHz bands (Big LEO band).
    (2) ATC operations shall be limited to certain frequencies:
    (i) In the 2000-2020 MHz/2180-2200 MHz bands (2 GHz MSS band), ATC 
operations are limited to the selected assignment of the 2 GHz MSS 
licensee that seeks ATC authority.
    (ii) In the 1626.5-1660.5 MHz/1525-1559 MHz bands (L-band), ATC 
operations are limited to the frequency assignments authorized and 
internationally coordinated for the MSS system of the MSS licensee that 
seeks ATC authority.
    (iii) In the 1610-1626.5 MHz/2483.5-2500 MHz bands (Big LEO band), 
ATC operations are limited to the 1610-1615.5 MHz, 1621.35-1626.5 MHz, 
and 2492.5-2498.0 MHz bands and to the specific frequencies authorized 
for use by the MSS licensee that seeks ATC authority.
    (3) ATC operations shall not exceed the geographical coverage area 
of the mobile satellite service network of the applicant for ATC 
authority.
    (4) ATC base stations shall comply with all applicable antenna and 
structural clearance requirements established in part 17 of this 
chapter.
    (5) ATC base stations and mobile terminals shall comply with part 1 
of this

[[Page 304]]

chapter, Subpart I--Procedures Implementing the National Environmental 
Policy Act of 1969, including the guidelines for human exposure to radio 
frequency electromagnetic fields as defined in Secs. 1.1307(b) and 
1.1310 of this chapter for PCS networks.
    (6) ATC base station operations shall use less than all available 
MSS frequencies when using all available frequencies for ATC base 
station operations would exclude otherwise available signals from MSS 
space-stations.
    (b) Applicants for an ancillary terrestrial component shall 
demonstrate that the applicant does or will comply with the following 
criteria through certification:
    (1) Geographic and temporal coverage. (i) For the 2 GHz MSS band, an 
applicant must demonstrate that it can provide space-segment service 
covering all 50 states, Puerto Rico, and the U.S. Virgin Islands one-
hundred percent of the time, consistent with the coverage requirements 
for 2 GHz MSS GSO operators.
    (ii) For the L-band, an applicant must demonstrate that it can 
provide space-segment service covering all 50 states, Puerto Rico, and 
the U.S. Virgin Islands one-hundred percent of the time, unless it is 
not technically possible for the MSS operator to meet the coverage 
criteria from its orbital position.
    (iii) For the Big LEO band, an applicant must demonstrate that it 
can provide space-segment service to all locations as far north as 
70[deg] North latitude and as far south as 55[deg] South latitude for at 
least seventy-five percent of every 24-hour period, i.e., that at least 
one satellite will be visible above the horizon at an elevation angle of 
at least 5[deg] for at least 18 hours each day, and on a continuous 
basis throughout the fifty states, Puerto Rico and the U.S. Virgin 
Islands, i.e., that at least one satellite will be visible above the 
horizon at an elevation angle of at least 5[deg] at all times.
    (2) Replacement satellites. (i) Operational NGSO MSS ATC systems 
shall maintain an in-orbit spare satellite.
    (ii) Operational GSO MSS ATC systems shall maintain a spare 
satellite on the ground within one year of commencing operations and 
launch it into orbit during the next commercially reasonable launch 
window following a satellite failure.
    (iii) All MSS ATC licensees must report any satellite failures, 
malfunctions or outages that may require satellite replacement within 
ten days of their occurrence.
    (3) Commercial availability. Mobile-satellite service must be 
commercially available (viz., offering services for a fee) in accordance 
with the coverage requirements that pertain to each band as a 
prerequisite to an MSS licensee's offering ATC service.
    (4) Integrated services. MSS ATC licensees shall offer an integrated 
service of MSS and MSS ATC. Applicants for MSS ATC may establish an 
integrated service offering by affirmatively demonstrating that:
    (i) The MSS ATC operator will use a dual-mode handset that can 
communicate with both the MSS network and the MSS ATC component to 
provide the proposed ATC service; or
    (ii) Other evidence establishing that the MSS ATC operator will 
provide an integrated service offering to the public.
    (5) In-band operation. (i) In the 2 GHz MSS band, MSS ATC is limited 
to an MSS licensee's selected assignment. MSS ATC operations on 
frequencies beyond the MSS licensee's selected assignment are 
prohibited.
    (ii) In the Big LEO band, MSS ATC is limited to no more than 5.5 MHz 
of spectrum in each direction of operation. Licensees in these bands may 
implement ATC only on those channels on which MSS is authorized, 
consistent with the Big LEO band-sharing arrangement.
    (iii) In the L-band, MSS ATC is limited to those frequency 
assignments available for MSS use in accordance with the Mexico City 
Memorandum of Understanding, its successor agreements or the result of 
other organized efforts of international coordination.
    (c) Equipment certification. (1) Each ATC MET utilized for operation 
under this part and each transmitter marketed, as set forth in 
Sec. 2.803 of this chapter, must be of a type that has been authorized 
by the Commission under its certification procedure for use under this 
part.

[[Page 305]]

    (2) Any manufacturer of radio transmitting equipment to be used in 
these services may request equipment authorization following the 
procedures set forth in subpart J of part 2 of this chapter. Equipment 
authorization for an individual transmitter may be requested by an 
applicant for a station authorization by following the procedures set 
forth in part 2 of this chapter.
    (3) Licensees and manufacturers are subject to the radiofrequency 
radiation exposure requirements specified in Secs. 1.1307(b), 2.1091 and 
2.1093 of this chapter, as appropriate. MSS ATC base stations must 
comply with the requirements specified in Sec. 1.1307(b) of this chapter 
for PCS base stations. MSS ATC mobile terminals must comply with the 
requirements specified for mobile and portable PCS transmitting devices 
in Sec. 1.1307(b) of this chapter. MSS ATC mobile terminals must also 
comply with the requirements in Secs. 2.1091 and 2.1093 of this chapter 
for Satellite Communications Services devices. Applications for 
equipment authorization of mobile or portable devices operating under 
this section must contain a statement confirming compliance with these 
requirements for both fundamental emissions and unwanted emissions. 
Technical information showing the basis for this statement must be 
submitted to the Commission upon request.
    (d) Applicants for an ancillary terrestrial component authority 
shall demonstrate that the applicant does or will comply with the 
provisions of Secs. 1.924 and 25.203(e) through 25.203(g) and with 
Secs. 25.252, 25.253, or 25.254, as appropriate, through certification 
or explanatory technical exhibit.
    (e) Except as provided for in paragraph (f) of this section, no 
application for an ancillary terrestrial component shall be granted 
until the applicant has demonstrated actual compliance with the 
provisions of paragraph (b) of this section. Upon receipt of ATC 
authority, all ATC licensees must ensure continued compliance with this 
section and Secs. 25.252, 25.253, or 25.254, as appropriate.
    (f) Special provision for operational MSS systems. Applicants for 
MSS ATC authority with operational MSS systems that are in actual 
compliance with the requirements prescribed in paragraphs (b)(1), 
(b)(2), and (b)(3) of this section at the time of application may elect 
to satisfy the requirements of paragraphs (b)(4) and (b)(5) of this 
section prospectively by providing a substantial showing in its 
certification regarding how the applicant will comply with the 
requirements of paragraphs (b)(4) and (b)(5) of this section. 
Notwithstanding Sec. 25.117(f) and paragraph (e) of this section, the 
Commission may grant an application for ATC authority based on such a 
prospective substantial showing if the Commission finds that operations 
consistent with the substantial showing will result in actual compliance 
with the requirements prescribed in paragraphs (b)(4) and (b)(5) of this 
section. An MSS ATC applicant that receives a grant of ATC authority 
pursuant to this paragraph (f) shall notify the Commission within 30 
days once it begins providing ATC service. This notification must take 
the form of a letter formally filed with the Commission in the 
appropriate MSS license docket and shall contain a certification that 
the MSS ATC service is consistent with its ATC authority.

[68 FR 47859, Aug. 12, 2003]

                       Processing of Applications