VHF MARINE RADIO-INTL CHANNELS

The following table is adapted from the International Telecommunications Union Radio Regulations Appendix S18, including changes adopted by the 2000 World Radio Conference. Transmission on frequencies or channels shown in blue are not allowed within U.S. territorial waters, but are allowed on the high seas and in most other countries. Note that a marine radio operating in the international mode on a channel in which the ship station frequency is shown in black and the shore station frequency shown in blue would not be able to communicate with a U.S. shore station. The large number of "blue" channels and frequencies indicates the shortage of VHF maritime spectrum in the U.S. compared to most other maritime countries. Finally, note also that changes made by WRC97 shown in green have not yet come into force.

Channel Designator

Notes

Transmitting Frequencies (MHz)

Intership

Port Operations and Ship Movement

Public correspondence

Ship Stations

Coast Stations

Single frequency

Two frequency

156.025

160.625

156.050

160.650

m, o

156.075

160.675

m, o

156.100

160.700

m, o

156.125

160.725

m, o

156.150

160.750

m, o

156.175

160.775

m, o

156.200

160.800

m, o

156.225

160.825

m, o

156.250

160.850

m, o

156.275

160.875

156.300

156.325

160.925

156.350

160.950

156.375

156.400

156.425

156.450

156.475

156.500

156.525

Digital selective calling for distress, safety and calling

156.550

156.575

156.600

156.625

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