Sec. 90.63 Power Radio Service.
(a) Eligibility. Persons primarily engaged in any of the following
activities are eligible to hold authorizations in the Power Radio
Service to operate radio stations for transmission of communications
essential to such activities of the licensee:
[[Page 346]]
(1) The generation, transmission, or distribution of electrical
energy for use by the general public or by the members of a cooperative
organization.
(2) The distribution of manufactured or natural gas by means of pipe
line, for use by the general public or by the members of a cooperative
organization, or, in a combination of that activity with the production,
transmission or storage of manufactured or natural gas preparatory to
such distribution.
(3) The distribution of steam by means of pipeline or, of water by
means of pipeline, canal, or open ditch, for use by the general public
or by the members of a cooperative organization, or in a combination of
that activity with the collection, transmission, storage, or
purification of water or the generation of steam preparatory to such
distribution.
(4) The providing of a supporting service by a corporation directly
related to activities of its parent corporation, of another subsidiary
of the same parent, or of its own subsidiary, where the party served is
regularly engaged in any of the eligibility activities set forth in this
section.
(b) Special use of service. (1) Radio facilities licensed to an
electric power entity, in addition to being used primarily for the
installation and maintenance of the electric power system, may also be
used for the installation and maintenance of any other wireline
facilities where such facilities employ in whole or in part the same
pole line or duct distribution system as that of the electric power
entity and where the licensee has the responsibility to maintain such
additional wireline facilities through common ownership or contractual
arrangement.
(2) Persons licensed under the provisions of paragraph (a)(2) of
this section may utilize their radio facilities in conjunction with the
supplying of liquefied petroleum gas to consumers in areas beyond gas
distribution pipelines.
(c) Frequencies available. The following table indicates frequencies
available for assignment to stations in the Power 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:
Power Radio Service Frequency Table
------------------------------------------------------------------------
Frequency or band Class of station(s) Limitations
------------------------------------------------------------------------
Kilohertz
------------------------------------------------------------------------
2000 to 25,000..................... Fixed, base or mobile. 1
2292............................... Base or mobile........ 1
2398............................... ......do.............. 1
4637.5............................. ......do.............. 1
------------------------------------------------------------------------
Megahertz
------------------------------------------------------------------------
37.46.............................. ......do.............. ...........
37.48.............................. ......do.............. ...........
37.50.............................. ......do.............. ...........
37.52.............................. ......do.............. ...........
37.54.............................. ......do.............. ...........
37.56.............................. ......do.............. ...........
37.58.............................. ......do.............. ...........
37.60.............................. Base, mobile or 2
operational fixed.
37.62.............................. Base or mobile........ ...........
37.64.............................. ......do.............. ...........
37.66.............................. ......do.............. ...........
37.68.............................. ......do.............. ...........
37.70.............................. ......do.............. ...........
37.72.............................. ......do.............. ...........
37.74.............................. ......do.............. ...........
37.76.............................. ......do.............. ...........
37.78.............................. ......do.............. ...........
37.80.............................. ......do.............. ...........
37.82.............................. ......do.............. ...........
37.84.............................. Operational fixed, 2
base or mobile.
37.86.............................. Base or mobile........ ...........
47.70.............................. ......do.............. ...........
47.72.............................. ......do.............. ...........
47.74.............................. ......do.............. ...........
47.76.............................. ......do.............. ...........
47.78.............................. ......do.............. ...........
47.80.............................. ......do.............. ...........
47.82.............................. ......do.............. ...........
47.84.............................. ......do.............. ...........
47.86.............................. ......do.............. ...........
47.88.............................. ......do.............. ...........
47.90.............................. ......do.............. ...........
47.92.............................. ......do.............. ...........
47.94.............................. ......do.............. ...........
47.96.............................. ......do.............. ...........
47.98.............................. ......do.............. ...........
48.00.............................. ......do.............. ...........
48.02.............................. ......do.............. ...........
48.04.............................. ......do.............. ...........
48.06.............................. ......do.............. ...........
48.08.............................. ......do.............. ...........
48.10.............................. ......do.............. ...........
48.12.............................. ......do.............. ...........
48.14.............................. ......do.............. ...........
48.16.............................. ......do.............. ...........
48.18.............................. ......do.............. ...........
48.20.............................. ......do.............. ...........
48.22.............................. ......do.............. ...........
48.24.............................. ......do.............. ...........
48.26.............................. ......do.............. ...........
48.28.............................. ......do.............. ...........
48.30.............................. ......do.............. ...........
48.32.............................. ......do.............. ...........
48.34.............................. ......do.............. ...........
48.36.............................. ......do.............. ...........
48.38.............................. ......do.............. ...........
48.40.............................. ......do.............. ...........
48.42.............................. ......do.............. ...........
48.44.............................. ......do.............. ...........
48.46.............................. ......do.............. ...........
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48.48.............................. ......do.............. ...........
48.50.............................. ......do.............. ...........
48.52.............................. ......do.............. ...........
48.54.............................. ......do.............. ...........
72.00 to 76.00..................... Operational fixed..... 3
74.61.............................. Mobile................ 27
74.63.............................. ......do.............. 27
74.65.............................. ......do.............. 27
74.67.............................. ......do.............. 27
74.69.............................. ......do.............. 27
74.71.............................. ......do.............. 27
74.73.............................. ......do.............. 27
74.75.............................. ......do.............. 27
74.77.............................. ......do.............. 27
74.79.............................. ......do.............. 27
75.21.............................. ......do.............. 27
75.23.............................. ......do.............. 27
75.25.............................. ......do.............. 27
75.27.............................. ......do.............. 27
75.29.............................. ......do.............. 27
75.31.............................. ......do.............. 27
75.33.............................. ......do.............. 27
75.35.............................. ......do.............. 27
75.37.............................. ......do.............. 27
75.39.............................. ......do.............. 27
150 to 170......................... Base or mobile........ 29, 31
153.410............................ ......do.............. ...........
153.4175........................... ......do.............. 24
153.425............................ ......do.............. 4
153.4325........................... ......do.............. 4, 24
153.440............................ ......do.............. 5
153.4475........................... ......do.............. 5, 24
153.455............................ ......do.............. 4
153.4625........................... ......do.............. 4, 24
153.470............................ ......do.............. ...........
153.4775........................... ......do.............. 24
153.485............................ ......do.............. 4
153.4925........................... ......do.............. 4, 24
153.500............................ ......do.............. 5
153.5075........................... ......do.............. 5, 24
153.515............................ ......do.............. 4
153.5225........................... ......do.............. 4, 24
153.530............................ ......do.............. ...........
153.5375........................... ......do.............. 24
153.545............................ ......do.............. 4
153.5525........................... ......do.............. 4, 24
153.560............................ ......do.............. 5
153.5675........................... ......do.............. 5, 24
153.575............................ ......do.............. 4
153.5825........................... ......do.............. 4, 24
153.590............................ ......do.............. ...........
153.5975........................... ......do.............. 24
153.605............................ ......do.............. 4
153.6125........................... ......do.............. 4, 24
153.620............................ ......do.............. 5
153.6275........................... ......do.............. 5, 24
153.635............................ ......do.............. 4
153.6425........................... ......do.............. 4, 24
153.650............................ ......do.............. ...........
153.6575........................... ......do.............. 24
153.665............................ ......do.............. 4
153.6725........................... ......do.............. 4, 24
153.680............................ ......do.............. 5
153.6875........................... ......do.............. 5, 24
153.695............................ ......do.............. ...........
153.7025........................... ......do.............. 24
153.710............................ ......do.............. ...........
153.7175........................... ......do.............. 24
153.725............................ ......do.............. ...........
153.7325........................... ......do.............. 24
154.45625.......................... Fixed or mobile....... 7, 21, 22,
23
154.46375.......................... ......do.............. 6, 7, 21
154.47125.......................... ......do.............. 7, 11, 21,
22
154.47875.......................... ......do.............. 7, 21, 22,
23
158.1225........................... Base or mobile........ 28
158.130............................ ......do.............. ...........
158.1375........................... ......do.............. 24
158.145............................ ......do.............. 8
158.1525........................... ......do.............. 8, 24
158.160............................ ......do.............. 9
158.1675........................... ......do.............. 9, 24
158.175............................ ......do.............. 8
158.1825........................... ......do.............. 8, 24
158.190............................ ......do.............. ...........
158.1975........................... ......do.............. 24
158.205............................ ......do.............. 8, 24
158.2125........................... ......do.............. 8
158.220............................ ......do.............. 9, 24
158.2275........................... ......do.............. 9
158.235............................ ......do.............. 8, 24
158.2425........................... ......do.............. 8
158.250............................ ......do.............. ...........
158.2575........................... ......do.............. 24
158.265............................ ......do.............. 8
158.2725........................... ......do.............. 8, 24
169-172............................ Mobile, operational 10
fixed.
173.20375.......................... Fixed or mobile....... 7, 11, 21,
22
173.2100........................... ......do.............. 11, 12, 21,
22
173.2375........................... ......do.............. 7, 21, 22,
23
173.250............................ Base or mobile........ 9
173.2625........................... Fixed or mobile....... 7, 21, 22,
23
173.2875........................... ......do.............. 7, 21, 22,
23
173.300............................ Base or mobile........ 9
173.3125........................... Fixed or mobile....... 7, 21, 22,
23
173.3375........................... ......do.............. 7, 21, 22,
23
173.350............................ Base or mobile........ 9
173.3625........................... Fixed or mobile....... 7, 21, 22,
23
173.3900........................... ......do.............. 11, 12, 21,
22
173.39625.......................... ......do.............. 7, 11, 21,
22
216-220............................ Base and mobile....... 13
220-222............................ Base and mobile....... 26
406-413............................ Operational fixed..... 10
450-470............................ Fixed, base, or mobile 14, 29
451.01875.......................... Base or mobile........ 28
451.025............................ ......do.............. ...........
451.03125.......................... ......do.............. 28
451.03750.......................... ......do.............. 24
451.04375.......................... ......do.............. 28
451.050............................ ......do.............. ...........
451.05625.......................... ......do.............. 28
451.06250.......................... ......do.............. 24
451.06875.......................... ......do.............. 28
451.075............................ ......do.............. ...........
451.08125.......................... ......do.............. 28
451.08750.......................... ......do.............. 24
451.09375.......................... ......do.............. 28
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451.100............................ ......do.............. ...........
451.10625.......................... ......do.............. 28
451.11250.......................... ......do.............. 24
451.11875.......................... ......do.............. 28
451.125............................ ......do.............. ...........
451.13125.......................... ......do.............. 28
451.13750.......................... ......do.............. 24
451.14375.......................... ......do.............. 28
451.150............................ ......do.............. ...........
451.15625.......................... ......do.............. 28
451.16250.......................... ......do.............. 24
451.16875.......................... ......do.............. 28
451.175............................ ......do.............. 15
451.18125.......................... ......do.............. 15, 28
451.18750.......................... ......do.............. 15, 24
451.19375.......................... ......do.............. 15, 28
451.200............................ ......do.............. ...........
451.20625.......................... ......do.............. 28
451.21250.......................... ......do.............. 24
451.21875.......................... ......do.............. 28
451.225............................ ......do.............. 15
451.23125.......................... ......do.............. 15, 28
451.23750.......................... ......do.............. 15, 24
451.24375.......................... ......do.............. 15, 28
451.250............................ ......do.............. ...........
451.25625.......................... ......do.............. 28
451.26250.......................... ......do.............. 24
451.26875.......................... ......do.............. 28
451.275............................ ......do.............. 15
451.28125.......................... ......do.............. 15, 28
451.28750.......................... ......do.............. 15, 24
451.29375.......................... ......do.............. 15, 28
451.3625........................... Mobile................ 30
451.375............................ Base and mobile....... 15
451.38125.......................... ......do.............. 28
451.38750.......................... ......do.............. 24
451.39375.......................... ......do.............. 28
451.4125........................... Mobile................ 30
451.425............................ Base or mobile........ 15
451.431251......................... ......do.............. 15, 28
451.43750.......................... ......do.............. 15, 24
451.44375.......................... ......do.............. 15, 28
451.4625........................... Mobile................ 30
451.475............................ Base or mobile........ 15
451.48125.......................... ......do.............. 28
451.48750.......................... ......do.............. 24
451.49375.......................... ......do.............. 28
451.5125........................... Mobile................ 30
451.525............................ Base or mobile........ 15
451.53125.......................... ......do.............. 15, 28
451.53750.......................... ......do.............. 15, 24
451.54375.......................... ......do.............. 15, 28
451.5625........................... Mobile................ 30
451.575............................ Base or mobile........ 15
451.58125.......................... ......do.............. 15, 28
451.58750.......................... ......do.............. 15, 24
451.59375.......................... ......do.............. 15, 28
451.6125........................... Mobile................ 30
451.625............................ Base or mobile........ 15
451.63125.......................... ......do.............. 15, 28
451.63750.......................... ......do.............. 15, 24
451.64375.......................... ......do.............. 15, 28
451.6625........................... Mobile................ 30
451.675............................ Base or mobile........ 15
451.68125.......................... ......do.............. 15, 28
451.68750.......................... ......do.............. 15, 24
451.69375.......................... ......do.............. 15, 28
456.01875.......................... ......do.............. 28
456.025............................ Mobile................ ...........
456.03125.......................... ......do.............. 28
456.03750.......................... ......do.............. 24
456.04375.......................... ......do.............. 28
456.050............................ ......do.............. ...........
456.05625.......................... ......do.............. 28
456.06250.......................... ......do.............. 24
456.06875.......................... ......do.............. 28
456.075............................ ......do.............. ...........
456.08125.......................... ......do.............. 28
456.08750.......................... ......do.............. 24
456.09375.......................... ......do.............. 28
456.100............................ ......do.............. ...........
456.10625.......................... ......do.............. 28
456.11250.......................... ......do.............. 24
456.11875.......................... ......do.............. 28
456.125............................ ......do.............. ...........
456.13125.......................... ......do.............. 28
456.13750.......................... ......do.............. 24
456.14375.......................... ......do.............. 28
456.150............................ ......do.............. ...........
456.15625.......................... ......do.............. 28
456.16250.......................... ......do.............. 24
456.16875.......................... ......do.............. 28
456.175............................ ......do.............. 15
456.18125.......................... ......do.............. 15, 28
456.18750.......................... ......do.............. 15, 24
456.19375.......................... ......do.............. 15, 28
456.200............................ ......do.............. ...........
456.20625.......................... ......do.............. 28
456.21250.......................... ......do.............. 24
456.21875.......................... ......do.............. 28
456.225............................ ......do.............. 15
456.23125.......................... ......do.............. 15, 28
456.23750.......................... ......do.............. 15, 24
456.24375.......................... ......do.............. 15, 28
456.250............................ ......do.............. ...........
456.25625.......................... ......do.............. 28
456.26250.......................... ......do.............. 24
456.26875.......................... ......do.............. 28
456.275............................ ......do.............. 15
456.28125.......................... ......do.............. 15, 28
456.28750.......................... ......do.............. 15, 24
456.29375.......................... ......do.............. 15, 28
456.3625........................... Mobile................ 30
456.375............................ ......do.............. 15
456.38125.......................... ......do.............. 15, 28
456.38750.......................... ......do.............. 15, 24
456.39375.......................... ......do.............. 15, 28
456.4125........................... ......do.............. 30
456.425............................ ......do.............. 15
456.43125.......................... ......do.............. 15, 28
456.43750.......................... ......do.............. 15, 24
456.44375.......................... ......do.............. 15, 28
456.4625........................... ......do.............. 30
456.475............................ ......do.............. 15
456.48125.......................... ......do.............. 15, 28
456.48750.......................... ......do.............. 15, 24
456.49375.......................... ......do.............. 15, 28
456.5125........................... ......do.............. 30
456.525............................ ......do.............. 15
456.53125.......................... ......do.............. 15, 28
456.53750.......................... ......do.............. 15, 24
456.54375.......................... ......do.............. 15, 28
456.5625........................... ......do.............. 30
456.575............................ ......do.............. 15
456.58125.......................... ......do.............. 15, 28
456.58750.......................... ......do.............. 15, 24
456.59375.......................... ......do.............. 15, 28
456.6125........................... ......do.............. 30
456.625............................ ......do.............. 15
456.63125.......................... ......do.............. 15, 28
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456.63750.......................... ......do.............. 15, 24
456.64375.......................... ......do.............. 15, 28
456.6625........................... ......do.............. 30
456.675............................ ......do.............. 15
456.68125.......................... ......do.............. 15, 28
456.68750.......................... ......do.............. 15, 24
456.69375.......................... ......do.............. 15, 28
462.4625........................... ......do.............. 30
462.475............................ Base or mobile........ 15
462.48125.......................... ......do.............. 15, 28
462.48750.......................... ......do.............. 15, 24
462.49375.......................... ......do.............. 15, 28
462.5125........................... Mobile................ 30
462.525............................ Base or mobile........ 15
462.53125.......................... ......do.............. 15, 28
467.4625........................... Mobile................ 30
467.475............................ ......do.............. 15
467.48125.......................... ......do.............. 15, 28
467.48750.......................... ......do.............. 15, 24
467.49375.......................... ......do.............. 15, 28
467.5125........................... ......do.............. 30
467.525............................ ......do.............. 15
467.53125.......................... ......do.............. 15, 28
470 to 512......................... Base or mobile........ 16
806 to 821......................... Mobile................ 17
851 to 866......................... Base or mobile........ 17
896 to 901......................... Mobile................ 17
928 and above...................... Operational fixed..... 18
929-930............................ Base only............. 25
935 to 940......................... Base or mobile........ 17
1427 to 1435....................... Base, mobile or 13
operational fixed.
2450 to 2500....................... Base or mobile........ 19
8400 to 8500....................... ......do.............. 20
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
tabulation of paragraph (c) of this section:
(1) Only utilities and power pools engaged in the distribution of
electric power, or the distribution of by pipeline of fuels or water are
eligible to use this spectrum, and 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 the following purposes:
(i) Providing backup standby communications for circuits which have
been disrupted and which are used for coordinating inter-utility, intra-
utility, and power pool distribution of electric power; or,
(ii) Coordinating the repair of inter-utility, intra-utility, and
power pool electric power distribution networks, or the repair of
pipelines.
(2) This frequency may be assigned only to stations operating in an
interconnected or coordinated utility system in accordance with an
operational communications plan which sets forth all points of
communications. Authorizations at variance with an established
operational communications plan will be made only on a secondary basis.
(3) 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.
(4) This frequency is shared with the Forest Products and Petroleum
Radio Services in the States of Arkansas, Louisiana, Oklahoma, and
Texas.
(5) This frequency is not available for assignment in this service
in the States of Arkansas, Louisiana, Oklahoma, and Texas. In these
States, this frequency is available to the Petroleum and Forest Products
Radio Services.
(6) This frequency is available for assignment to multiple address
fixed stations employing omnidirectional antennas used for Power Utility
peak load shaving and shedding and to mobile stations used for the
remote control of objects and devices. The maximum power that may be
authorized to fixed stations is 300 watts output, and the maximum power
that may be authorized for mobile stations is 1 watt output. This
frequency may also be assigned to operational fixed stations employing
directional antenna systems (front-to-back ratio of 20 dB) when such
stations are located at least 120 km. (75 mi.) from the boundaries of
any urbanized area of 200,000 or more population. (U.S Census of
Population, 1960). The maximum power output of the transmitter for such
fixed stations may not exceed 50 watts. A1A, A1D, A2B, A2D, F1B, F1D,
F2B, F2D, G1B, G1D, G2B, or G2D emission may be authorized.
(7) For FM transmitters the sum of the highest modulating frequency
and the amount of frequency deviation may not exceed 2.8 kHz and the
maximum
[[Page 350]]
frequency deviation may not exceed 2.5 kHz. For AM transmitters the
highest modulating frequency may not exceed 2.0 kHz. The carrier
frequency must be maintained within 0.0005 percent, and the authorized
bandwidth may not exceed 6 kHz.
(8) This frequency is shared with Forest Products and Petroleum
Radio Services in the States of Arkansas, Louisiana, Oklahoma, Oregon,
Texas, and Washington.
(9) This frequency is not available for assignment in this service
in the States of Arkansas, Louisiana, Oklahoma, Oregon, Texas, and
Washington. In these States this frequency is available only in the
Petroleum and Forest Products Radio Services.
(10) Frequencies in this band will be assigned only for transmitting
hydrological or meteorological data or for low power wireless
microphones in accordance with the provisions of Sec. 90.265.
(11) The maximum output power of the transmitter may not exceed 50
watts for fixed stations and 1 watt for mobiles. A1A, A1D, A2B, A2D,
F1B, F1D, F2B, F2D, G1B, G1D, G2B, or G2D emission may be authorized.
(12) For FM transmitters the sum of the highest modulating frequency
and the amount of frequency deviation may not exceed 1.7 kHz and the
maximum deviation may not exceed 1.2 kHz. For AM transmitters the
highest modulating frequency may not exceed 1.2 kHz. The carrier
frequency must be maintained within 0.0005 percent and the authorized
bandwidth may not exceed 3 kHz.
(13) This band is available to stations operating in this service
subject to the provisions of Sec. 90.259.
(14) The requirements for secondary fixed use of frequencies in this
band are set forth in Sec. 90.261.
(15) 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 frequencies in
the 450-470 MHz band allocated to the service in which the applicant is
primarily eligible are assigned within 56 km. (35 mi) of the proposed
base station.
(16) Subpart L contains rules for assignment of frequencies in the
470-512 MHz band.
(17) Subpart S contains rules for assignment of frequencies in the
806-821/851-866 and 896-901/935-940 MHz bands.
(18) Assignment of frequencies above 928 MHz for operational-fixed
stations is governed by part 94 of this chapter.
(19) 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.
(20) Use of frequencies in this band is limited to developmental
operation and is subject to the provisions of subpart Q.
(21) This frequency is available on a shared basis with the Local
Government, Petroleum, Forest Products, Special Industrial, Business and
Manufacturers Radio Services for remote control and telemetry
operations.
(22) Operational fixed stations must employ directional antennas
having a front-to-back ratio of at least 20 dB. Omnidirectional antennas
having unity gain may be employed for stations communicating with at
least three receiving locations separated by 160 deg. of azimuth.
(23) The maximum effective radiated power (ERP) may not exceed 20
watts for fixed stations and 2 watts for mobile stations. The height of
the antenna system may not exceed 15.24 meters (50 ft.) above the
ground. All such operation is on a secondary basis to adjacent channel
land mobile operations.
(24) 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.
[[Page 351]]
(25) Frequencies in this band are available only for one-way paging
operations in accordance with Sec. 90.494.
(26) Subpart T contains rules for assignment of frequencies in the
220-222 MHz band.
(27) This frequency is available on a shared basis with the
Petroleum, Business, Manufacturers, and Railroad Radio Services and
interservice coordination is required. All communications on this
frequency must be conducted within the boundaries or confines of a power
plant, factory, liquified natural gas facility, shipyard, mine,
substation, pumping station, or operations control room. Operations on
this frequency are subject to the provisions of Sec. 90.257(b). Pulsed
modulations will not be authorized.
(28) 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.
(29) Assignment of frequencies in this band are subject to the
provisions of Sec. 90.173.
(30) 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.
(31) 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) Frequencies may be substituted for those available below 25 MHz
in accordance with the provisions of Sec. 90.263.
(2) [Reserved]
(3) 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.)
(4) Persons eligible under the provisions of paragraph (a)(2) of
this section who are engaged in the distribution of natural gas directly
to consumers and who have a substantial requirement for mobile service
communication with a gas supplier may be authorized to operate on the
Petroleum Radio Service frequency or frequencies assigned to the
supplier. However, such operation shall be limited to communications in
a local area common to both parties, and shall relate only to gas supply
and distribution activities. The application of any person seeking a
frequency assignment under the provisions of this paragraph shall be
accompanied by a written statement from the natural gas supplier which
concurs in the need for such intercommunication and consents to the use
by the natural gas distributor of the frequency or frequencies involved.
(5) 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 the 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 developmental
operation by 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.
(g) The frequencies 10-490 kHz are used to operate electric utility
Power Line Carrier (PLC) systems on power transmission lines for
communications essential to the reliability and security
[[Page 352]]
of electric service to the public, in accordance with part 15 of this
chapter. Any electric utility fulfilling requirements in paragraph
(a)(1) of this section may operate PLC systems and shall supply to a
Federal Communications Commission/National Telecommunications and
Information Administration recognized industry-operated entity,
information on all existing, changes to existing, and proposed systems
for inclusion in a data base. Such information shall include the
frequency, power, location of transmitter(s), location of receivers and
other technical and operational parameters, which would characterize the
system's potential both to interfere with authorized radio users, and to
receive harmful interference from these users. In an agreed upon format,
the industry-operated entity shall inform the National
Telecommunications and Information Administration and the Commission of
these system characteristics prior to implementation of any proposed PLC
system and shall provide monthly or periodic lists with supplements of
PLC systems. The Federal Communications Commission and National
Telecommunications and Information Administration will supply
appropriate application and licensing information to the notification
activity regarding authorized radio stations operating in the band. PLC
systems in this band operate on a noninterference basis to radio systems
assigned frequencies by the NTIA or licensed by the FCC and are not
protected from interference due to these radio operations.
(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. 90.63, see the List of CFR Sections Affected in the Finding Aids
section of this volume.
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