Sec. 90.81 Telephone Maintenance Radio Service.
(a) Eligibility. Communications common carriers engaged in the
provision of landline local exchange telephone service, or interexchange
communications service, or who provide wire-telegraph service, and radio
communications common carriers authorized in the Point-to-Point
Microwave Radio Service under part 21 of this chapter are eligible to
hold authorizations in the Telephone Maintenance Radio Service.
Resellers that do not own or control transmission facilities are not
eligible in this service.
(b) Special limitations on use. The facilities authorized in this
service shall only be used for transmission of communications directly
related to the construction, repair, maintenance or operation of
communications common carrier facilities. The facilities authorized in
this service shall not be used for the transmission of any common
carrier or public correspondence communication.
(c) Frequencies available. The following table indicates frequencies
available for assignment to stations in the Telephone Maintenance Radio
Service, together with the class of station(s) to which they are
normally assigned and the specific assignment limitations which are
explained in paragraph (d) of this section:
Telephone Maintenance Radio Service Frequency Table
------------------------------------------------------------------------
Frequency or band Class of station(s) Limitations
------------------------------------------------------------------------
Kilohertz
------------------------------------------------------------------------
2,000 to 25,000.................... Fixed, base or mobile. 14
------------------------------------------------------------------------
Megahertz
------------------------------------------------------------------------
35.16.............................. Base or mobile........ ...........
43.16.............................. Mobile................ ...........
72-76.............................. Operational fixed..... 13
150 to 170......................... Base or mobile........ 17, 19
151.985............................ Base or mobile........ ...........
152.9925........................... ....do................ 16
158.34............................. Mobile................ ...........
158.3475........................... ....do................ 11
169-172............................ ....do................ 15
216 to 220......................... Base or mobile........ 2
220-222............................ Base and mobile....... 1
450 to 470......................... Fixed, base, or mobile 3, 17
451.1625........................... Mobile................ 18
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451.175............................ Base or mobile........ 4
451.18125.......................... ....do................ 4, 16
451.18750.......................... ....do................ 4, 11
451.19375.......................... ....do................ 4, 16
451.2125........................... Mobile................ 18
451.225............................ Base or mobile........ 4
451.23125.......................... ....do................ 4, 16
451.23750.......................... ....do................ 4, 11
451.24375.......................... ....do................ 4, 16
451.2625........................... Mobile................ 18
451.275............................ Base or mobile........ 4
451.28125.......................... ....do................ 4, 16
451.28750.......................... ....do................ 4, 11
451.29375.......................... ....do................ 4, 16
451.300............................ ....do................
451.30625.......................... ....do................ 16
451.31250.......................... ....do................ 11
451.31875.......................... ....do................ 16
451.325............................ ....do................
451.33125.......................... ....do................ 16
451.33750.......................... ....do................ 11
451.34375.......................... ....do................ 16
451.350............................ ....do................
451.35625.......................... ....do................ 16
451.36250.......................... ....do................ 11
451.36875.......................... ....do................ 16
451.375............................ ....do................ 4
451.38125.......................... ....do................ 4, 16
451.38750.......................... ....do................ 4, 11
451.39375.......................... ....do................ 4, 16
451.400............................ ....do................
451.40625.......................... ....do................ 16
451.41250.......................... ....do................ 11
451.41875.......................... ....do................ 16
451.425............................ ....do................ 4
451.43125.......................... ....do................ 4, 16
451.43750.......................... ....do................ 4, 11
451.44375.......................... ....do................ 4, 16
451.450............................ ....do................
451.45625.......................... ....do................ 16
451.46250.......................... ....do................ 11
451.46875.......................... ....do................ 16
451.475............................ ....do................ 4
451.48125.......................... ....do................ 4, 16
451.48750.......................... ....do................ 4, 11
451.49375.......................... ....do................ 4, 16
451.500............................ ....do................
451.50625.......................... ....do................ 16
451.51250.......................... ....do................ 11
451.51875.......................... ....do................ 16
451.525............................ ....do................ 4
451.53125.......................... ....do................ 4, 16
451.53750.......................... ....do................ 4, 11
451.54375.......................... ....do................ 4, 16
451.5625........................... Mobile................ 18
451.575............................ Base or mobile........ 4
451.58125.......................... ....do................ 4, 16
451.58750.......................... ....do................ 4, 11
451.59375.......................... ....do................ 4, 16
451.6125........................... Mobile................ 18
451.625............................ Base or mobile........ 4
451.63125.......................... ....do................ 4, 16
451.63750.......................... ....do................ 4, 11
451.64375.......................... ....do................ 4, 16
451.6625........................... Mobile................ 18
451.675............................ Base or mobile........ 4
451.68125.......................... ....do................ 4, 16
451.68750.......................... ....do................ 4, 11
451.69375.......................... ....do................ 4, 16
456.1625........................... Mobile................ 18
456.175............................ ....do................ 4
456.18125.......................... ....do................ 4, 16
456.18750.......................... ....do................ 4, 11
456.19375.......................... ....do................ 4, 16
456.2125........................... ....do................ 18
456.225............................ ....do................ 4
456.23125.......................... ....do................ 4, 16
456.23750.......................... ....do................ 4, 11
456.24375.......................... ....do................ 4, 16
456.2625........................... ....do................ 18
456.275............................ ....do................ 4
456.28125.......................... ....do................ 4, 16
456.28750.......................... ....do................ 4, 11
456.29375.......................... ....do................ 4, 16
456.300............................ ....do................ 5
456.30625.......................... ....do................ 5, 16
456.31250.......................... ....do................ 5, 11
456.31875.......................... ....do................ 5, 16
456.325............................ ....do................ 5
456.33125.......................... ....do................ 5, 16
456.33750.......................... ....do................ 5, 11
456.34375.......................... ....do................ 5, 16
456.350............................ ....do................ 5
456.35625.......................... ....do................ 5, 16
456.36250.......................... ....do................ 5, 11
456.36875.......................... ....do................ 5, 16
456.375............................ ....do................ 4
456.38125.......................... ....do................ 4, 16
456.38750.......................... ....do................ 4, 11
456.39375.......................... ....do................ 4, 16
456.400............................ ....do................ 5
456.40625.......................... ....do................ 5, 16
456.41250.......................... ....do................ 5, 11
456.41875.......................... ....do................ 5, 16
456.425............................ ....do................ 4
456.43125.......................... ....do................ 4, 16
456.43750.......................... ....do................ 4, 11
456.44375.......................... ....do................ 4, 16
456.450............................ ....do................ 5
456.45625.......................... ....do................ 5, 16
456.46250.......................... ....do................ 5, 11
456.46875.......................... ....do................ 5, 16
456.475............................ ....do................ 4
456.48125.......................... ....do................ 4, 16
456.48750.......................... ....do................ 4, 11
456.49375.......................... ....do................ 4, 16
456.500............................ ....do................ 5
456.50625.......................... ....do................ 5, 16
456.51250.......................... ....do................ 5, 11
456.51875.......................... ....do................ 5, 16
456.525............................ ....do................ 4
456.53125.......................... ....do................ 4, 16
456.53750.......................... ....do................ 4, 11
456.54375.......................... ....do................ 4, 16
456.5625........................... ....do................ 18
456.575............................ ....do................ 4
456.58125.......................... ....do................ 4, 16
456.58750.......................... ....do................ 4, 11
456.59375.......................... ....do................ 4, 16
456.6125........................... ....do................ 18
456.625............................ ....do................ 4
456.63125.......................... ....do................ 4, 16
456.63750.......................... ....do................ 4, 11
456.64375.......................... ....do................ 4, 16
456.6625........................... ....do................ 18
456.675............................ ....do................ 4
456.68125.......................... ....do................ 4, 16
456.68750.......................... ....do................ 4, 11
456.69375.......................... ....do................ 4, 16
462.4625........................... ....do................ 18
[[Page 403]]
462.475............................ Base or mobile........ 4
462.48125.......................... ....do................ 4, 16
462.48750.......................... ....do................ 4, 11
462.49375.......................... ....do................ 4, 16
462.5125........................... Mobile................ 18
462.525............................ Base or mobile........ 4
462.53125.......................... ....do................ 4, 16
467.4625........................... Mobile................ 18
467.475............................ ....do................ 4
467.48125.......................... ....do................ 4, 16
467.48750.......................... ....do................ 4, 11
467.49375.......................... ....do................ 4, 16
467.5125........................... ....do................ 18
467.525............................ ....do................ 4
467.53125.......................... ....do................ 4, 16
470 to 512......................... Base or mobile........ 6
806 to 821......................... Mobile................ 7
851 to 866......................... Base or mobile........ 7
896 to 901......................... Mobile................ 7
928 and above...................... Operational fixed..... 8
929-930............................ Base only............. 12
935 to 940......................... Base or mobile........ 7
1427 to 1435....................... Operational fixed, 2
base or mobile.
2450 to 2500....................... Base or mobile........ 9
8400 to 8500....................... ....do................ 10
10,550 to 10,680*.................. ....do................ ...........
------------------------------------------------------------------------
* The frequencies in the band 10.55-10.68 GHz are available for Digital
Termination Systems and for associated internodal links in the Point-
to-Point Microwave Radio Service. No new licenses will be issued under
this subpart but current licenses will be renewed.
(d) Explanation of assignment limitations appearing in the frequency
table of paragraph (c) of this section:
(1) Subpart T contains rules for assignment of frequencies in the
220-222 MHz band.
(2) This frequency band is available to stations in this service
subject to the provisions of Sec. 90.259.
(3) The requirements for secondary fixed use of frequencies in this
band are set forth in Sec. 90.261.
(4) This frequency is available on a shared basis in the Power,
Petroleum, Forest Products, Manufacturers, and Telephone Maintenance
Radio Services. It may be assigned only when all of the base and mobile
frequencies in the 450-470 MHz band for which the applicant is primarily
eligible are assigned within 56 km (35 miles) of the proposed base
station. Applications for this frequency must be coordinated with all
five services. Telephone Maintenance Radio Service licensees on this
frequency authorized prior to September 26, 1986, including their
successors or assignees in business, will be permitted to renew their
authorizations indefinitely, increase the number of transmitters
operated, and expand the geographic coverage area of their systems,
without a showing that all of the base and mobile Telephone Maintenance
Radio Service frequencies in this band are assigned within 56 km (35
miles) of the existing base station.
(5) This frequency may be assigned to auxiliary test stations.
(6) Subpart L contains rules for assignment of frequencies in the
470-512 MHz band.
(7) Subpart S contains rules for assignment of frequencies in the
806-821/851-866 and 896-901/935-940 MHz bands.
(8) Assignment of frequencies above 928 MHz for operational-fixed
stations is governed by part 94 of this chapter.
(9) Available only on a shared basis with stations in other
services, and subject to no protection from interference due to the
operation of industrial, scientific, or medical (ISM) devices. In the
2483.5-2500 MHz band, no applications for new or modification to
existing stations to increase the number of transmitters will be
accepted. Existing licensees as of July 25, 1985, or on a subsequent
date following as a result of submitting an application for license on
or before July 25, 1985, are grandfathered and their operation is co-
primary with the Radiodetermination Satellite Service.
(10) Use of this frequency band is limited to developmental
operation and is subject to the provisions of subpart Q.
(11) This frequency is not available in the 150-170 MHz band until
August 18, 1996. This frequency will be assigned with an authorized
bandwidth not to exceed 11.25 kHz. In the 450-470 MHz band, secondary
telemetry operations pursuant to Sec. 90.238(e) will be authorized on
this frequency.
(12) Frequencies in this band are available only for one-way paging
operations in accordance with Sec. 90.494.
(13) The frequencies available for use at operational-fixed stations
in the band 72-76 MHz are listed in Sec. 90.257(a)(1). These frequencies
are shared with other services and are available only in accordance with
the provisions of Sec. 90.257.
(14) Only entities engaged in the repair of telecommunications
circuits are eligible to use this spectrum, and
[[Page 404]]
then only in accordance with Sec. 90.266. Except as provided in this
part, licensees may not use these frequencies in the place of other
operational circuits permitted by the Commission's Rules. Circuits
operating on these frequencies may be used only for coordinating the
repair of wireline or point-to-point microwave circuits.
(15) Frequencies in this band will be assigned for low power
wireless microphones in accordance with the provisions of Sec. 90.265.
(16) This frequency is not available until August 18, 1996. After
August 18, 1996 this frequency will be assigned with an authorized
bandwidth not to exceed 6 kHz.
(17) Assignment of frequencies in this band are subject to the
provisions of Sec. 90.173.
(18) This frequency is available for systems first licensed prior to
August 18, 1995. No new systems will be authorized after August 18,
1995, but prior authorized systems may be modified, expanded, and
renewed.
(19) Licensees as of August 18, 1995 who operate systems that are
2.5 kHz removed from regularly assignable frequencies may continue to
operate on a secondary, non-interference basis after August 1, 2003.
(e) Additional frequencies available. In addition to the frequencies
shown in the frequency table of this section, the following frequencies
are available in this service: (See also Sec. 90.253.)
(1) [Reserved]
(2) Frequencies in the band 73.0-74.6 MHz may be assigned to
stations authorized their use on or before December 1, 1961, but no new
stations will be authorized in this band, nor will expansion of existing
systems be permitted. (See also Sec. 90.257.)
(3) Frequencies in the 421-430 MHz band are available in the
Detroit, Cleveland, and Buffalo areas in accordance with the rules in
Secs. 90.273 through 90.281.
(f) Limitation on number of frequencies assignable. Normally only
one frequency, or pair of frequencies in the paired frequency mode of
operation, will be assigned for mobile service operations by a single
applicant in a given area. The assignment of an additional frequency or
pair of frequencies will be made only upon a satisfactory showing of
need, except that:
(1) Additional frequencies above 25 MHz may be assigned in
connection with operation of mobile repeaters in accordance with
Sec. 90.247 notwithstanding this limitation;
(2) Frequencies in ranges 30.56-30.57 MHz, 35.00-35.01 MHz, 35.99-
36.00 MHz, and 37.00-37.01 MHz are available for assignment of
applicants in this service subject to the provisions of subpart Q
notwithstanding this limitation.
(3) Frequencies in the 25-50 MHz, 150-170 MHz, 450-512 MHz and 902-
928 MHz bands may be assigned for the operation of Location and
Monitoring Service (LMS) systems in accordance with the provisions of
subpart M of this part, notwithstanding this limitation.
(Secs. 4(i) and 303(r), Communications Act of 1934, as amended,
Secs. 0.131 and 0.331 of the Commission's Rules and 5 U.S.C. 553
(b)(3)(B) and (d)(3); 47 U.S.C. 154(i) and )
[43 303 FR 54791 , Nov. 22, 1978]
Editorial Note: For Federal Register citations affecting
Sec. 90.81, see the List of CFR Sections Affected in the Finding Aids
section of this volume.
Subpart E--Land Transportation Radio Services
Effective Date Note: At 62 FR 18924 , Apr. 17, 1997, subpart E,
consisting of Secs. 90.85--90.95, was removed and reserved, effective
Oct. 17, 1997.
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