HM360 DSC MAX
18
67
156.375
156.375
x
Commercial. Used for Bridge-to-bridge communications in lower
Mississippi River. Inter-ship only.
68
156.425
156.425
x
Non-Commercial
69
156.475
156.475
x
Non-Commercial
70
156.525
156.525
x
Non-Commercial
71
156.575
156.575
x
Non-Commercial
72
156.625
156.625
x
Non-Commercial (Inter-ship only)
73
156.675
156.675
x
Port Operations
74
156.725
156.725
x
Port Operations
77
156.875
156.875
x
Port Operations (Inter-ship only)
78A
156.925
156.925
x
Non-Commercial
79A
156.975
156.975
x
Commercial. Non-Commercial in Great Lakes only.
80A
157.025
157.025
x
Commercial. Non-Commercial in Great Lakes only
81A
157.075
157.075
x
U.S. Government only – Environmental protection operations.
82A
157.125
157.125
x
U.S. Government only
83A
157.175
157.175
x
U.S. Coast Guard only
84
157.225
161.825
Public Correspondence (Marine Operator)
84A
157.225
157.225
Non-Commercial
85
157.275
161.875
Public Correspondence (Marine Operator)
85A
157.275
157.275
Non-Commercial
86
157.325
161.925
Public Correspondence (Marine Operator)
86A
157.325
157.325
Non-Commercial
87
157.375
161.975
Public Correspondence Marine Operator)
87A
157.375
157.375
Non-Commercial
88
157.425
162.025
Public Correspondence only near Canadian border
88A
157.425
157.425
x
Commercial, Inter-ship only
Recreational boaters normally use channels listed as Non-Commercial: 68, 69, 71, 72, 78A.
Channel 70 is used exclusively for Digital Selective Calling (DSC) and is not available for regular voice
communications.
Channels 75 and 76 are reserved as guard bands for Channel 16 and are not available for regular voice
communications.
Notes:
1. The letter “A” following a channel number indicates simplex use of the ship station transmit side of an international
semi-duplex channel. Operations are different from that of international operations on that channel.
2. Channel 13 should be used to contact a ship when there is danger of collision. All ships of length 20 meters or greater
are required to guard VHF channel 13, in addition to VHF channel 16, when operating within U.S. territorial waters.
3. Channel is Receive Only.
4. Channel 16 is used for calling other stations or for distress alerting.
5. Output power is fixed at 1 watt only.
6. Output power is initially set to 1 watt. User can temporarily override this restriction to transmit at high power.
