Allocations

 
U.S. Non-Federal-Government Allocations
505 - 510 kHz
MARITIME MOBILE 5.79

FCC Rule Parts:
Maritime (80)

U.S. Federal Government Allocations
505 - 510 kHz
MARITIME MOBILE 5.79


ITU Region 1 Allocations
505 - 526.5 kHz
MARITIME MOBILE 5.79 5.79A 5.84
AERONAUTICAL RADIONAVIGATION


ITU Region 2 Allocations
505 - 510 kHz
MARITIME MOBILE 5.79


ITU Region 3 Allocations
505 - 526.5 kHz
MARITIME MOBILE 5.79 5.79A 5.84
AERONAUTICAL RADIONAVIGATION
Aeronautical mobile
Land mobile


SpectrumWiki


Footnotes


5.79 The use of the bands 415-495 kHz and 505-526.5 kHz (505-510 kHz in Region 2) by the maritime mobile service is limited to radiotelegraphy.

5.79A When establishing coast stations in the NAVTEX service on the frequencies 490 kHz, 518 kHz and 4209.5 kHz, administrations are strongly recommended to coordinate the operating characteristics in accordance with the procedures of the International Maritime Organization (IMO) (see Resolution 339 (Rev.WRC-07)). (WRC-07)

5.84 The conditions for the use of the frequency 518 kHz by the maritime mobile service are prescribed in Articles 31 and 52. (WRC-07)

SpectrumWiki

 
Aeronautical Nondirectional Radiobeacons (NDBs)
Navtex


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

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 505 kHz 515.75 kHz 526.5 kHz
Wavelength 593.6 m 581.3 m 569.4 m
Band designator(s) MF MF MF
Isotropic collecting area 28,044.6 m2 26,887.7 m2 25,800.9 m2
Free space loss (1 m) N/A (near field) N/A (near field) N/A (near field)
Free space loss (1 km) 26.5 dB 26.7 dB 26.9 dB
Free space loss (10 km) 46.5 dB 46.7 dB 46.9 dB
Free space loss (100 km) 66.5 dB 66.7 dB 66.9 dB
Free space loss (1000 km) 86.5 dB 86.7 dB 86.9 dB
Free space loss
(35,786 km = GEO orbit)
117.6 dB 117.8 dB 118.0 dB
Free space loss (378,370 km = Moon) 138.1 dB 138.3 dB 138.4 dB