Allocations

 
U.S. Non-Federal-Government Allocations
161.775 - 161.9625 MHz
MOBILE except aeronautical mobile US266 NG6

Relevant FCC Auctions:
Auction 20 (VHF Public Coast), $7,459,200
Auction 39 (VHF Public Coast and Location and Monitoring Services), $1,144,755
 Total net auction bids: $8,603,955

U.S. Federal Government Allocations
161.625 - 161.9625 MHz


ITU Region 1 Allocations
157.3375 - 161.7875 MHz
FIXED
MOBILE except aeronautical mobile


ITU Region 2 Allocations
157.3375 - 161.7875 MHz
FIXED
MOBILE


ITU Region 3 Allocations
157.3375 - 161.7875 MHz
FIXED
MOBILE


SpectrumWiki

Band Uses (157.3375 - 161.9625 MHz)

Footnotes

5.226   The frequency 156.525 MHz is the international distress, safety and calling frequency for the maritime mobile VHF radiotelephone service using digital selective calling (DSC). The conditions for the use of this frequency and the band 156.4875-156.5625 MHz are contained in Articles 31 and 52, and in Appendix 18.
The frequency 156.8 MHz is the international distress, safety and calling frequency for the maritime mobile VHF radiotelephone service. The conditions for the use of this frequency and the band 156.7625-156.8375 MHz are contained in Article 31 and Appendix 18.

    In the bands 156-156.4875 MHz, 156.5625-156.7625 MHz, 156.8375-157.45 MHz, 160.6-160.975 MHz and 161.475-162.05 MHz, each administration shall give priority to the maritime mobile service on only such frequencies as are assigned to stations of the maritime mobile service by the administration (see Articles 31 and 52, and Appendix 18).
Any use of frequencies in these bands by stations of other services to which they are allocated should be avoided in areas where such use might cause harmful interference to the maritime mobile VHF radiocommunication service.
However, the frequencies 156.8 MHz and 156.525 MHz and the frequency bands in which priority is given to the maritime mobile service may be used for radiocommunications on inland waterways subject to agreement between interested and affected administrations and taking into account current frequency usage and existing agreements. (WRC 07)

US266   Non-Federal licensees in the Public Safety Radio Pool holding a valid authorization on June 30, 1958, to operate in the frequency band 156.27-157.45 MHz or on the frequencies 161.85 MHz or 161.91 MHz may, upon proper application, continue to be authorized for such operation, including expansion of existing systems, until such time as harmful interference is caused to the operation of any authorized station other than those licensed in the Public Safety Radio Pool.

NG6  Stations in the public safety radio services authorized as of June 30, 1958, to use frequencies in the band 159.51-161.79 MHz in areas other than Puerto Rico and the Virgin Islands may continue such operation, including expansion of existing systems, on the condition that harmful interference will not be caused to stations in the services to which these bands are allocated. In Puerto Rico and the Virgin Islands this authority is limited to frequencies in the band 160.05-161.37 MHz. No new public radio service system will be authorized to operate on these frequencies.


SpectrumWiki

 
History of the Beep
FCC Narrowbanding Mandate
2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.9


Related Documents, Links, and Multimedia:
Occupancy Measurements (10)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 157.3375 MHz 159.65 MHz 161.9625 MHz
Wavelength 1.9 m 1.9 m 1.9 m
Band designator(s) VHF VHF VHF
Isotropic collecting area 2,889.1 cm2 2,806.0 cm2 2,726.5 cm2
Free space loss (1 m) 16.4 dB 16.5 dB 16.6 dB
Free space loss (1 km) 76.4 dB 76.5 dB 76.6 dB
Free space loss (10 km) 96.4 dB 96.5 dB 96.6 dB
Free space loss (100 km) 116.4 dB 116.5 dB 116.6 dB
Free space loss (1000 km) 136.4 dB 136.5 dB 136.6 dB
Free space loss
(35,786 km = GEO orbit)
167.5 dB 167.6 dB 167.7 dB
Free space loss (378,370 km = Moon) 187.9 dB 188.1 dB 188.2 dB
Simple HTML Table