Goto Section: 90.529 | 90.532 | Table of Contents

FCC 90.531
Revised as of December 20, 2018
Goto Year:2018 | 2020
  § 90.531   Band plan.

   This section sets forth the band plan for the 758-775 MHz and 788-805
   MHz public safety bands.

   (a) Base and mobile use. The 763-775 MHz band may be used for base,
   mobile or fixed (repeater) transmissions. The 793-805 MHz band may be
   used only for mobile or fixed (control) transmissions.

   (b) Narrowband segments. There are two band segments that are
   designated for use with narrowband emissions. Each of these narrowband
   segments is divided into 960 channels having a channel size of 6.25 kHz
   as follows:
   Frequency range Channel Nos.
   769-775 MHz            1-960
   799-805 MHz          961-1920

   (1) Narrowband interoperability channels. The following narrowband
   channels are designated for nationwide interoperability licensing and
   use: 23, 24, 39, 40, 63, 64, 79, 80, 103, 104, 119, 120,143, 144, 159,
   160, 183, 184, 199, 200, 223, 224, 239, 240, 263, 264, 279, 280, 303,
   304, 319, 320, 641, 642, 657, 658, 681, 682, 697, 698, 721, 722, 737,
   738, 761, 762, 777, 778, 801, 802, 817, 818, 841, 842, 857, 858, 881,
   882, 897, 898, 921, 922, 937, 938, 983, 984, 999, 1000, 1023, 1024,
   1039, 1040, 1063, 1064, 1079, 1080, 1103, 1104, 1119, 1120, 1143, 1144,
   1159, 1160, 1183, 1184, 1199, 1200, 1223, 1224, 1239, 1240, 1263, 1264,
   1279, 1280, 1601, 1602, 1617, 1618, 1641, 1642, 1657, 1658, 1681, 1682,
   1697, 1698, 1721, 1722, 1737, 1738, 1761, 1762, 1777, 1778, 1801, 1802,
   1817, 1818, 1841, 1842, 1857, 1858, 1881, 1882, 1897, 1898.

   (i) Narrowband data Interoperability channels. The following channel
   pairs are reserved nationwide for data transmission on a primary basis:
   279/1239, 280/1240, 921/1881, and 922/1882. Voice operations are
   permitted on these channels on a secondary basis.

   (ii) Narrowband calling Interoperability channels. The following
   channel pairs are dedicated nationwide for the express purpose of
   Interoperability calling only: 39/999, 40/1000, 681/1641, and 682/1642.
   They may not be used primarily for routine, day-to-day communications.
   Encryption is prohibited on the designated calling channels.

   (iii) Narrowband trunking Interoperability channels. The following
   Interoperability channel pairs may be used in trunked mode on a
   secondary basis to conventional Interoperability operations: 23/983,
   24/984, 103/1063, 104/1064, 183/1143, 184/1144, 263/1223, 264/1224,
   657/1617, 658/1618, 737/1697, 738/1698, 817/1777, 818/1778, 897/1857,
   898/1858. For every ten general use channels trunked at a station,
   entities may obtain a license to operate in the trunked mode on two of
   the above contiguous Interoperability channel pairs. The maximum number
   of Interoperability channel pairs that can be trunked at any one
   location is eight.

   (2) Narrowband General Use Reserve channels. The following narrowband
   channels are designated for General Use subject to Commission approved
   regional planning committee regional plans and technical rules
   applicable to General Use channels: 37, 38, 61, 62, 77, 78, 117, 118,
   141, 142, 157, 158, 197, 198, 221, 222, 237, 238, 277, 278, 301, 302,
   317, 318, 643, 644, 683, 684, 699, 700, 723, 724, 763, 764, 779, 780,
   803, 804, 843, 844, 859, 860, 883, 884, 923, 924, 939, 940, 997, 998,
   1021, 1022, 1037, 1038, 1077, 1078, 1101, 1102, 1117, 1118, 1157, 1158,
   1181, 1182, 1197, 1198, 1237, 1238, 1261, 1262, 1277, 1278, 1603, 1604,
   1643, 1644, 1659, 1660, 1683, 1684, 1723, 1724, 1739, 1740, 1763, 1764,
   1803, 1804, 1819, 1820, 1843, 1844, 1883, 1884, 1899, 1900.

   (i) T-Band Relocation. The narrowband channels established in paragraph
   (b)(2) are designated for priority access by public safety incumbents
   relocating from the 470-512 MHz band in the urban areas specified in
   § § 90.303 and 90.305 of the Commission's rules provided that such
   incumbent commits to return to the Commission an equal amount of T-Band
   spectrum and obtains concurrence from the relevant regional planning
   committee(s). Public safety T-Band incumbents shall enjoy priority
   access for a five year period starting from the date the Public Safety
   and Homeland Security Bureau releases a public notice announcing the
   availability of Reserve Channels for licensing.

   (ii) Deployable Trunked Systems. Outside the urban areas specified in
   § § 90.303 and 90.305 of the Commission's rules, the 700 MHz Regional
   Planning Committees may designate no more than eight 12.5 kilohertz
   channel pairs for temporary deployable mobile trunked infrastructure
   (F2BT) that could be transported into an incident area to assist with
   emergency response and recovery.

   (iii) General Use. Outside the urban areas specified in § § 90.303 and
   90.305 of the Commission's rules, the 700 MHz Regional Planning
   Committees may designate sixteen to twenty four 12.5 kilohertz channel
   pairs for General Use, including low power vehicular mobile repeaters
   (MO3).

   (3) Narrowband low power channels subject to regional planning. The
   following narrowband channels are designated for low power use for
   on-scene incident response purposes using mobiles and portables subject
   to Commission-approved regional planning committee regional plans.
   Transmitter power must not exceed 2 watts (ERP): Channels 1-8 paired
   with Channels 961-968, and Channels 949-958 paired with Channels
   1909-1918.

   (4) Narrowband low power itinerant channels. The following narrowband
   channels are designated for low power use for on-scene incident
   response purposes using mobiles and portables. These channels are
   licensed nationwide for itinerant operation. Transmitter power must not
   exceed 2 watts (ERP): Channels 9-12 paired with Channels 969-972 and
   Channels 959-960 paired with Channels 1919-1920.

   (5) Narrowband state channels. The following narrowband channels are
   designated for direct licensing to each state (including U.S.
   territories, districts, and possessions): 25-36, 65-76, 105-116,
   145-156, 185-196, 225-236, 265-276, 305-316, 645-656, 685-696, 725-736,
   765-776, 805-816, 845-856, 885-896, 925-936, 985-996, 1025-1036,
   1065-1076, 1105-1116, 1145-1156, 1185-1196, 1225-1236, 1265-1276,
   1605-1616, 1645-1656, 1685-1696, 1725-1736, 1765-1776, 1805-1816,
   1845-1856, 1885-1896. Voice operations on these channels are subject to
   compliance with the spectrum usage efficiency requirements set forth in
   § 90.535(d).

   (6) Narrowband general use channels. All narrowband channels
   established in this paragraph (b), other than those listed in
   paragraphs (b)(1), (b)(4), (b)(5), and (b)(7) of this section are
   reserved to public safety eligibles subject to Commission approved
   regional planning committee regional plans. Voice operations on these
   channels are subject to compliance with the spectrum usage efficiency
   requirements set forth in § 90.535(d).

   (7) Air-ground channels. The following channels are reserved for
   air-ground communications to be used by low-altitude aircraft and
   ground based stations: 21/981, 22/982, 101/1061, 102/1062, 181/1141,
   182/1142, 261/1221, 262/1222, 659/1619, 660/1620, 739/1699, 740/1700,
   819/1779, 820/1780, 899/1859, and 900/1860.

   (i) Airborne use of these channels is limited to aircraft flying at or
   below 457 meters (1500 feet) above ground level.

   (ii) Aircraft are limited to 2 watts effective radiated power (ERP)
   when transmitting while airborne on these channels.

   (iii) Aircraft may transmit on either the mobile or base transmit side
   of the channel pair.

   (iv) States are responsible for the administration of these channels.

   (c) [Reserved]

   (d) Combining channels. Except as noted in this section, at the
   discretion of the appropriate regional planning committee, contiguous
   channels may be used in combination in order to accommodate
   requirements for larger bandwidth emissions, in accordance with this
   paragraph. Interoperability channels may not be combined with channels
   in another group except for channels for secondary trunking channels.

   (1) Narrowband. Subject to compliance with the spectrum usage
   efficiency requirements set forth in § 90.535, two or four contiguous
   narrowband (6.25 kHz) channels may be used in combination as 12.5 kHz
   or 25 kHz channels, respectively. The lower (in frequency) channel for
   two channel combinations must be an odd (i.e., 1, 3, 5 *  *  *)
   numbered channel. The lowest (in frequency) channel for four channel
   combinations must be a channel whose number is equal to 1 + (4xn),
   where n = any integer between 0 and 479, inclusive (e.g., channel
   number 1, 5, *  *  * 1917). Channel combinations are designated by the
   lowest and highest channel numbers separated by a hyphen, e.g., “1-2”
   for a two channel combination and “1-4” for a four channel combination.

   (2) [Reserved]

   (e) Channel pairing. In general, channels must be planned and assigned
   in base/mobile pairs that are separated by 30 MHz. However, until
   December 31, 2006, channels other than those listed in paragraphs
   (b)(1) and (c)(1), may be planned and assigned in base/mobile pairs
   having a different separation, where necessary because 30 MHz
   base/mobile pairing is precluded by the presence of one or more
   co-channel or adjacent channel TV/DTV broadcast stations.

   (f) Internal guard band. The internal guard band (768-769/798-799 MHz)
   is reserved.

   (g) Broadband. The 758-768 MHz and 788-798 MHz bands are allocated for
   broadband communications.

   [ 63 FR 58651 , Nov. 2, 1998, as amended at  65 FR 66654 , Nov. 7, 2000;  66 FR 10635 , 10636, Feb. 16, 2001;  67 FR 61005 , Sept. 27, 2002;  67 FR 76700 , Dec. 13, 2002;  72 FR 48860 , Aug. 24, 2007;  77 FR 62463 , Oct. 15,
   2012;  79 FR 71325 , Dec. 2, 2014]

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Goto Section: 90.529 | 90.532

Goto Year: 2018 | 2020
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