Allocations

 
U.S. Non-Federal-Government Allocations
13.41 - 13.57 MHz
FIXED


U.S. Federal Government Allocations
13.41 - 13.57 MHz
FIXED
Mobile except aeronautical mobile (R)


ITU Region 1 Allocations
13.45 - 13.55 MHz
FIXED
Mobile except aeronautical mobile (R)
Radiolocation 5.132A


ITU Region 2 Allocations
13.45 - 13.55 MHz
FIXED
Mobile except aeronautical mobile (R)
Radiolocation 5.132A


ITU Region 3 Allocations
13.45 - 13.55 MHz
FIXED
Mobile except aeronautical mobile (R)
Radiolocation 5.132A


SpectrumWiki


Footnotes


5.132A Stations in the radiolocation service shall not cause harmful interference to, or claim protection from, stations operating in the fixed or mobile services. Applications of the radiolocation service are limited to oceanographic radars operating in accordance with Resolution 612 (Rev.WRC-12). (WRC-12)

5.149A Alternative allocation: in Armenia, Austria, Belarus, Moldova, Uzbekistan and Kyrgyzstan, the frequency band 13450-13550 kHz is allocated to the fixed service on a primary basis and to the mobile, except aeronautical mobile (R), service on a secondary basis. (WRC-12)

5.150 The following bands:

13553-13567 kHz(centre frequency 13560kHz),
26957-27283 kHz(centre frequency 27120 kHz),
40.66-40.70 MHz(centre frequency 40.68 MHz),
902-928 MHzin Region 2 (centre frequency 915 MHz),
2400-2500 MHz(centre frequency 2450 MHz),
5725-5875 MHz(centre frequency 5800 MHz), and
24-24.25 GHz(centre frequency 24.125 GHz)

are also designated for industrial, scientific and medical (ISM) applications. Radiocommunication services operating within these bands must accept harmful interference which may be caused by these applications. ISM equipment operating in these bands is subject to the provisions of No. 15.13.

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.


SpectrumWiki

 
Shortwave Broadcasting
Ocean Radar (WRC-2012)
Industrial, Scientific, and Medical Devices (ISM, FCC Part 18)
Radiofrequency Identification (RFID)
Radio Astronomy (13.36 - 13.41 MHz)
Access Broadband over Power Line (Access BPL)


Related Documents, Links, and Multimedia:
FCC Proceeding (1)
Other (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 13410 kHz 13490 kHz 13570 kHz
Wavelength 22.4 m 22.2 m 22.1 m
Band designator(s) HF HF HF
Isotropic collecting area 39.8 m2 39.3 m2 38.8 m2
Free space loss (1 m) N/A (near field) N/A (near field) N/A (near field)
Free space loss (1 km) 55.0 dB 55.1 dB 55.1 dB
Free space loss (10 km) 75.0 dB 75.1 dB 75.1 dB
Free space loss (100 km) 95.0 dB 95.1 dB 95.1 dB
Free space loss (1000 km) 115.0 dB 115.1 dB 115.1 dB
Free space loss
(35,786 km = GEO orbit)
146.1 dB 146.1 dB 146.2 dB
Free space loss (378,370 km = Moon) 166.6 dB 166.6 dB 166.6 dB