§ 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 TableFrequency or bandClass of station(s)LimitationsKilohertz:2,000 to 25,000 Fixed, base or mobile 14Megahertz:35.16 Base or mobile 43.16 Mobile 72-76 Operational fixed 13150 to 170 Base or mobile [phone] Base or mobile [phone] ......do 16158.34 Mobile[phone] ......do 11169-172 ......do 15216 to 220 Base or mobile [phone] Base and mobile 1450 to 470 Fixed, base, or mobile 3, 17451.1625 Mobile [phone] Base or mobile [phone] ......do 4, 16451.18750 ......do 4, 11451.19375 ......do 4, 16451.2125 Mobile [phone] Base or mobile [phone] ......do 4, 16451.23750 ......do 4, 11451.24375 ......do 4, 16451.2625 Mobile [phone] Base or mobile [phone] ......do 4, 16451.28750 ......do 4, 11451.29375 ......do 4, 16451.300 ......do451.30625 ......do 16451.31250 ......do 11451.31875 ......do 16451.325 ......do451.33125 ......do 16451.33750 ......do 11451.34375 ......do 16451.350 ......do451.35625 ......do 16451.36250 ......do 11451.36875 ......do 16451.375 ......do 4451.38125 ......do 4, 16451.38750 ......do 4, 11451.39375 ......do 4, 16451.400 ......do451.40625 ......do 16451.41250 ......do 11451.41875 ......do 16451.425 ......do 4451.43125 ......do 4, 16451.43750 ......do 4, 11451.44375 ......do 4, 16451.450 ......do451.45625 ......do 16451.46250 ......do 11451.46875 ......do 16451.475 ......do 4451.48125 ......do 4, 16451.48750 ......do 4, 11451.49375 ......do 4, 16451.500 ......do451.50625 ......do 16451.51250 ......do 11451.51875 ......do 16451.525 ......do 4451.53125 ......do 4, 16451.53750 ......do 4, 11451.54375 ......do 4, 16451.5625 Mobile [phone] Base or mobile [phone] ......do 4, 16451.58750 ......do 4, 11451.59375 ......do 4, 16451.6125 Mobile [phone] Base or mobile [phone] ......do 4, 16451.63750 ......do 4, 11451.64375 ......do 4, 16451.6625 Mobile [phone] Base or mobile [phone] ......do 4, 16451.68750 ......do 4, 11451.69375 ......do 4, 16456.1625 Mobile [phone] ......do 4456.18125 ......do 4, 16456.18750 ......do 4, 11456.19375 ......do 4, 16456.2125 ......do 18456.225 ......do 4456.23125 ......do 4, 16456.23750 ......do 4, 11456.24375 ......do 4, 16456.2625 ......do 18456.275 ......do 4456.28125 ......do 4, 16456.28750 ......do 4, 11456.29375 ......do 4, 16456.300 ......do 5456.30625 ......do 5, 16456.31250 ......do 5, 11456.31875 ......do 5, 16456.325 ......do 5456.33125 ......do 5, 16456.33750 ......do 5, 11456.34375 ......do 5, 16456.350 ......do 5456.35625 ......do 5, 16456.36250 ......do 5, 11456.36875 ......do 5, 16456.375 ......do 4456.38125 ......do 4, 16456.38750 ......do 4, 11456.39375 ......do 4, 16456.400 ......do 5456.40625 ......do 5, 16456.41250 ......do 5, 11456.41875 ......do 5, 16456.425 ......do 4456.43125 ......do 4, 16456.43750 ......do 4, 11456.44375 ......do 4, 16456.450 ......do 5456.45625 ......do 5, 16456.46250 ......do 5, 11456.46875 ......do 5, 16456.475 ......do 4456.48125 ......do 4, 16456.48750 ......do 4, 11456.49375 ......do 4, 16456.500 ......do 5456.50625 ......do 5, 16456.51250 ......do 5, 11456.51875 ......do 5, 16456.525 ......do 4456.53125 ......do 4, 16456.53750 ......do 4, 11456.54375 ......do 4, 16456.5625 ......do 18456.575 ......do 4456.58125 ......do 4, 16456.58750 ......do 4, 11456.59375 ......do 4, 16456.6125 ......do 18456.625 ......do 4456.63125 ......do 4, 16456.63750 ......do 4, 11456.64375 ......do 4, 16456.6625 ......do 18456.675 ......do 4456.68125 ......do 4, 16456.68750 ......do 4, 11456.69375 ......do 4, 16462.4625 ......do 18462.475 Base or mobile [phone] ......do 4, 16462.48750 ......do 4, 11462.49375 ......do 4, 16462.5125 Mobile [phone] Base or mobile [phone] ......do 4, 16467.4625 Mobile [phone] ......do 4467.48125 ......do 4, 16467.48750 ......do 4, 11467.49375 ......do 4, 16467.5125 ......do 18467.525 ......do 4467.53125 ......do 4, 16470 to 512 Base or mobile 6806 to 821 Mobile 7851 to 866 Base or mobile 7896 to 901 Mobile 7928 and above Operational fixed 8929-930 Base only 12935 to 940 Base or mobile 71427 to 1435 Operational fixed, base or mobile 22450 to 2500 Base or mobile 98400 to 8500 ......do 1010,550 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 § 90.259.

(3) The requirements for secondary fixed use of frequencies in this band are set forth in § 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 § 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 § 90.494.

(13) The frequencies available for use at operational-fixed stations in the band 72-76 MHz are listed in § 90.257(a)(1). These frequencies are shared with other services and are available only in accordance with the provisions of § 90.257.

(14) Only entities engaged in the repair of telecommunications circuits are eligible to use this spectrum, and then only in accordance with § 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 § 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 § 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.

(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 § 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 § 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 §§ 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 § 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.