Allocations

 
U.S. Non-Federal-Government Allocations
18.068 - 18.168 MHz
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FCC Rule Parts:
Amateur Radio (97)

U.S. Federal Government Allocations
18.068 - 18.168 MHz


ITU Region 1 Allocations
18.068 - 18.168 MHz
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ITU Region 2 Allocations
18.068 - 18.168 MHz
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ITU Region 3 Allocations
18.068 - 18.168 MHz
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Footnotes

5.154   Additional allocation: in Armenia, Azerbaijan, the Russian Federation, Georgia, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Ukraine, the band 18 068-18 168 kHz is also allocated to the fixed service on a primary basis for use within their boundaries, with a peak envelope power not exceeding 1 kW. (WRC-03)

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 17 m Band
Access Broadband over Power Line (Access BPL)


Related Documents, Links, and Multimedia:
Band Plan (2)
Other (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 18068 kHz 18118 kHz 18168 kHz
Wavelength 16.6 m 16.5 m 16.5 m
Band designator(s) HF HF HF
Isotropic collecting area 21.9 m2 21.8 m2 21.7 m2
Free space loss (1 m) N/A (near field) N/A (near field) N/A (near field)
Free space loss (1 km) 57.6 dB 57.6 dB 57.6 dB
Free space loss (10 km) 77.6 dB 77.6 dB 77.6 dB
Free space loss (100 km) 97.6 dB 97.6 dB 97.6 dB
Free space loss (1000 km) 117.6 dB 117.6 dB 117.6 dB
Free space loss
(35,786 km = GEO orbit)
148.7 dB 148.7 dB 148.7 dB
Free space loss (378,370 km = Moon) 169.1 dB 169.2 dB 169.2 dB
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