Allocations

 
U.S. Non-Federal-Government Allocations
7.3 - 7.4 MHz
BROADCASTING 5.134


U.S. Federal Government Allocations
7.3 - 7.4 MHz
BROADCASTING 5.134


ITU Region 1 Allocations
7.3 - 7.4 MHz
BROADCASTING 5.134


ITU Region 2 Allocations
7.3 - 7.4 MHz
BROADCASTING 5.134


ITU Region 3 Allocations
7.3 - 7.4 MHz
BROADCASTING 5.134


SpectrumWiki


Footnotes


5.134 The use of the bands 5900-5950 kHz, 7300-7350 kHz, 9400-9500 kHz, 11600-11650 kHz, 12050-12100 kHz, 13570-13600 kHz, 13800-13870 kHz, 15600-15800 kHz, 17480-17550 kHz and 18900-19020 kHz by the broadcasting service is subject to the application of the procedure of Article 12. Administrations are encouraged to use these bands to facilitate the introduction of digitally modulated emissions in accordance with the provisions of Resolution 517 (Rev.WRC-07). (WRC-07)

5.143 Additional allocation: frequencies in the band 7300-7350 kHz may be used by stations in the fixed service and in the land mobile service, communicating only within the boundary of the country in which they are located, on condition that harmful interference is not caused to the broadcasting service. When using frequencies for these services, administrations are urged to use the minimum power required and to take account of the seasonal use of frequencies by the broadcasting service published in accordance with the Radio Regulations. (WRC-07)

5.143A In Region 3, frequencies in the band 7350-7450 kHz may be used by stations in the fixed service on a primary basis and land mobile service on a secondary basis, communicating only within the boundary of the country in which they are located, on condition that harmful interference is not caused to the broadcasting service. When using frequencies for these services, administrations are urged to use the minimum power required and to take account of the seasonal use of frequencies by the broadcasting service published in accordance with the Radio Regulations. (WRC-12)

5.143B In Region 1, frequencies in the band 7350-7450 kHz may be used by stations in the fixed and land mobile services communicating only within the boundary of the country in which they are located on condition that harmful interference is not caused to the broadcasting service. The total radiated power of each station shall not exceed 24 dBW. (WRC-12)

5.143C Additional allocation: in Algeria, Saudi Arabia, Bahrain, Comoros, Djibouti, Egypt, United Arab Emirates, Iran (Islamic Republic of), Jordan, Kuwait, Libya, Morocco, Mauritania, Niger, Oman, Qatar, the Syrian Arab Republic, Sudan, South Sudan, Tunisia and Yemen, the bands 7350-7400 kHz and 7400-7450 kHz are also allocated to the fixed service on a primary basis. (WRC-12)

5.143D In Region 2, frequencies in the band 7350-7400 kHz may be used by stations in the fixed service and in the land mobile service, communicating only within the boundary of the country in which they are located, on condition that harmful interference is not caused to the broadcasting service. When using frequencies for these services, administrations are urged to use the minimum power required and to take account of the seasonal use of frequencies by the broadcasting service published in accordance with the Radio Regulations. (WRC-12)

US136 The following provisions shall apply in eight HF bands that are allocated to the broadcasting service (HFBC) on a primary basis in all Regions.

(a) In Alaska, the assigned frequency band 7368.48-7371.32 kHz is allocated exclusively to the fixed service (FS) on a primary basis for non-Federal use in accordance with 47 CFR 80.387.

(b) On the condition that harmful interference is not caused to the broadcasting service (NIB operations), Federal and non-Federal stations that communicate wholly within the United States and its insular areas may operate as specified herein. All such stations must take account of the seasonal use of frequencies by the broadcasting service published in accordance with Article 12 of the ITU Radio Regulations and are limited to the minimum power needed for reliable communications.

(1) Federal stations. Frequencies in the 13 HF bands/sub-bands listed in the table below (HF NIB Bands) may be authorized to Federal stations in the FS. In the bands 5.9-5.95, 7.3-7.4, 13.57-13.6, and 13.80-13.87 MHz (6, 7, 13.6, and 13.8 MHz bands), frequencies may also be authorized to Federal stations in the mobile except aeronautical mobile route (R) service (MS except AM(R)S). Federal use of the bands 9.775-9.9, 11.65-11.7, and 11.975-12.05 MHz is restricted to stations in the FS that were authorized as of June 12, 2003, and each grandfathered station is restricted to a total radiated power of 24 dBW. In all other HF NIB Bands (*), new Federal stations may be authorized.

(2) Non-Federal stations. Non-Federal use of the HF NIB Bands is restricted to stations in the FS, land mobile service (LMS), and maritime mobile service (MMS) that were licensed prior to March 25, 2007, except that, in the sub-band 7.35-7.4 MHz, use is restricted to stations that were licensed prior to March 29, 2009.

NIB OPERATIONS IN EIGHT HFBC BANDS (MHZ)

HF NIB Band

Federal (*new stations permitted)

Non-Federal

HFBC Band

5.90-5.95

*FS and MS except AM(R)S .............…..

MMS …...…….…

….5.90-6.20

7.30-7.40

*FS and MS except AM(R)S ..............….

FS, LMS and MMS

….7.30-7.40

9.40-9.50

*9 MHz: FS ……......................................

FS and LMS .........

….9.40-9.90

9.775-9.90

FS (Grandfathered, restricted to 24 dBW)

11.60-11.65

*11 MHz: FS .….......................................

FS .........................

11.60-12.10

11.65-11.70

FS (Grandfathered, restricted to 24 dBW)

11.975-12.05

FS (Grandfathered, restricted to 24 dBW)

12.05-12.10

*12 MHz: FS .…………………....……...

FS

13.57-13.60

*FS and MS except AM(R)S …...............

MMS ….......…….

13.57-13.87

13.80-13.87

*FS and MS except AM(R)S ...................

MMS

15.60-15.80

*15 MHz: FS .……………….…...…...…

FS …..…...............

15.10-15.80

17.48-17.55

*17 MHz: FS .………...…………….…...

……......................

17.48-17.90

18.90-19.02

*19 MHz: FS .……...………….……...…

MMS …................

18.90-19.02

NOTE: Non-Federal stations may continue to operate in nine HF NIB Bands as follows: (i) In the 6, 7, 13.6, 13.8, and 19 MHz bands, stations in the MMS; (ii) In the 7 and 9 MHz bands, stations in the FS and LMS; and (iii) In the 11, 12, and 15 MHz band, stations in the FS.

US340 The band 2-30 MHz is available on a non-interference basis to Federal and non-Federal maritime and aeronautical stations for the purposes of measuring the quality of reception on radio channels. See 47 CFR 87.149 for the list of protected frequencies and bands within this frequency range. Actual communications shall be limited to those frequencies specifically allocated to the maritime mobile and aeronautical mobile services.


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Amateur Radio 40 m Band
Shortwave Broadcasting
Access Broadband over Power Line (Access BPL)


Related Documents, Links, and Multimedia:
Band Plan (2)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 7300 kHz 7350 kHz 7400 kHz
Wavelength 41.1 m 40.8 m 40.5 m
Band designator(s) HF HF HF
Isotropic collecting area 134.2 m2 132.4 m2 130.6 m2
Free space loss (1 m) N/A (near field) N/A (near field) N/A (near field)
Free space loss (1 km) 49.7 dB 49.8 dB 49.8 dB
Free space loss (10 km) 69.7 dB 69.8 dB 69.8 dB
Free space loss (100 km) 89.7 dB 89.8 dB 89.8 dB
Free space loss (1000 km) 109.7 dB 109.8 dB 109.8 dB
Free space loss
(35,786 km = GEO orbit)
140.8 dB 140.9 dB 140.9 dB
Free space loss (378,370 km = Moon) 161.3 dB 161.3 dB 161.4 dB