Radio spectrum allocations

Footnotes

• 5.149   In making assignments to stations of other services to which the bands:
  13 360-13 410 kHz,
  25 550-25 670 kHz,
  37.5-38.25 MHz,
  73-74.6 MHz in Regions 1 and 3,
  150.05-153 MHz in Region 1,
  322-328.6 MHz,
  406.1-410 MHz,
  608-614 MHz in Regions 1 and 3,
  1 330-1 400 MHz,
  1 610.6-1 613.8 MHz,
  1 660-1 670 MHz,
  1 718.8-1 722.2 MHz,
  2 655-2 690 MHz,
  3 260-3 267 MHz,
  3 332-3 339 MHz,
  3 345.8-3 352.5 MHz,
  4 825-4 835 MHz, 4 950-4 990 MHz,
  4 990-5 000 MHz,
  6 650-6 675.2 MHz,
  10.6-10.68 GHz,
  14.47-14.5 GHz,
  22.01-22.21 GHz,
  22.21-22.5 GHz,
  22.81-22.86 GHz,
  23.07-23.12 GHz,
  31.2-31.3 GHz,
  31.5-31.8 GHz in Regions 1 and 3,
  36.43-36.5 GHz,
  42.5-43.5 GHz,
  48.94-49.04 GHz,
  76-86 GHz,
  92-94 GHz,
  94.1-100 GHz, 102-109.5 GHz,
  111.8-114.25 GHz,
  128.33-128.59 GHz,
  129.23-129.49 GHz,
  130-134 GHz,
  136-148.5 GHz,
  151.5-158.5 GHz,
  168.59-168.93 GHz,
  171.11-171.45 GHz,
  172.31-172.65 GHz,
  173.52-173.85 GHz,
  195.75-196.15 GHz,
  209-226 GHz,
  241-250 GHz,
  252-275 GHz
  are allocated, administrations are urged to take all practicable steps to protect the radio astronomy service from harmful interference. Emissions from spaceborne or airborne stations can be particularly serious sources of interference to the radio astronomy service (see Nos. 4.5 and 4.6 and Article 29). (WRC 07)

• 5.265   In the frequency band 403-410 MHz, Resolution 205 (Rev.WRC 19) applies. (WRC 19)

• G5   In the bands 162.0125-173.2, 173.4-174, 406.1-410 and 410-420 MHz, use by the military services is limited by the provisions specified in the channeling plans shown in Sections 4.3.7 and 4.3.9 of the NTIA Manual.

• G6   Military tactical fixed and mobile operations may be conducted nationally on a secondary basis: (a) To the meteorological aids service in the band 403-406 MHz; and (b) To the radio astronomy service in the band 406.1-410 MHz. Such fixed and mobile operations are subject to local coordination to ensure that harmful interference will not be caused to the services to which the bands are allocated.

• US13   The following center frequencies, each with a channel bandwidth not greater than 12.5 kHz, are available for assignment to non-Federal fixed stations for the specific purpose of transmitting hydrological and meteorological data in cooperation with Federal agencies, subject to the condition that harmful interference will not be caused to Federal stations:

  Hydro Channels (MHz)
  169.4250	170.2625	171.1000	406.1250
  169.4375	170.2750	171.1125	406.1750
  169.4500	170.2875	171.1250	412.6625
  169.4625	170.3000	171.8250	412.6750
  169.4750	170.3125	171.8375	412.6875
  169.4875	170.3250	171.8500	412.7125
  169.5000	171.0250	171.8625	412.7250
  169.5125	171.0375	171.8750	412.7375
  169.5250	171.0500	171.8875	412.7625
  170.2250	171.0625	171.9000	412.7750
  170.2375	171.0750	171.9125	415.1250
  170.2500	171.0875	171.9250	415.1750

      New assignments on the frequencies 406.125 MHz and 406.175 MHz are to be primarily for paired operations with the frequencies 415.125 MHz and 415.175 MHz, respectively.

• US55   In the bands 162.0375-173.2 MHz and 406.1-420 MHz, the FCC may authorize public safety applicants to use the 40 Federal Interoperability Channels that are designated for joint Federal/non-Federal operations for law enforcement, public safety, emergency response and disaster response in Section 4.3.16 of the NTIA Manual, subject to the condition that that these non-Federal mobile (including portable) interoperability communications shall conform to the national plans specified therein, and in particular, shall not cause harmful interference to Federal stations. The procedure for authorizing such use is set forth in 47 CFR 90.25.

• US74   In the bands 25.55-25.67, 73-74.6, 406.1-410, 608-614, 1400-1427, 1660.5-1670, 2690-2700, and 4990-5000 MHz, and in the bands 10.68-10.7, 15.35-15.4, 23.6-24.0, 31.3-31.5, 86-92, 100-102, 109.5-111.8, 114.25-116, 148.5-151.5, 164-167, 200-209, and 250-252 GHz, the radio astronomy service shall be protected from unwanted emissions only to the extent that such radiation exceeds the level which would be present if the offending station were operating in compliance with the technical standards or criteria applicable to the service in which it operates. Radio astronomy observations in these bands are performed at the locations listed in US385.

• US117   In the band 406.1-410 MHz, the following provisions shall apply:

      (a) Stations in the fixed and mobile services are limited to a transmitter output power of 125 watts, and new authorizations for stations, other than mobile stations, are subject to prior coordination by the applicant in the following areas:

      (1) Within Puerto Rico and the U.S. Virgin Islands, contact Spectrum Manager, Arecibo Observatory, HC3 Box 53995, Arecibo, PR 00612. Phone: 787-878-2612, Fax: 787-878-1861, E-mail: prcz@naic.edu.

      (2) Within 350 km of the Very Large Array (34° 04' 44" N, 107° 37' 06" W), contact Spectrum Manager, National Radio Astronomy Observatory, P.O. Box O, 1003 Lopezville Road, Socorro, NM 87801. Phone: 505-835-7000, Fax: 505-835-7027, E-mail: nrao-rfi@nrao.edu.

      (3) Within 10 km of the Table Mountain Observatory (40° 08' 02" N, 105° 14' 40" W) and for operations only within the sub-band 407-409 MHz, contact Radio Frequency Manager, Department of Commerce, 325 Broadway, Boulder, CO 80305. Phone: 303-497-4619, Fax: 303-497-6982, E-mail: frequencymanager@its.bldrdoc.gov.

      (b) Non-Federal use is limited to the radio astronomy service and as provided by footnote US13.