(New)
CH No.
(Old)
CH No.
TX Freq
(MHz)
RX
Freq
(MHz)
Single
Freq
Use
73
73
156.675
156.675 x
Port operations.
74
74
156.725
156.725
x
Port operations.
77
77
156.875
156.875 x
Port operations (Intership only).
1078
78A
156.925
156.92
5
x
Non-commercial.
VDSMS.
1079
79A
156.975
156.975 x
Commercial.
Non-commercial in Great Lakes only).
VDSMS.
1080
80A
157.025
157.025
x
Commercial.
Non-commercial in Great Lakes only).
VDSMS.
1081
81A
157.075
157.075
x
US Government only — Environmental protection
operations.
1082
82A
157.125
157.125
x
US Government only.
1083
83A
157.175
157.175
x
US Coast Guard only.
84
84
157.225
161.825
Public correspondence (Marine operator).
VDSMS.
85
85
157.275
161.875
Public correspondence (Marine operator).
VDSMS.
86
86
157.325
161.925
Public correspondence (Marine operator).
VDSMS.
87
87
157.375
161.975
Public correspondence (Marine operator).
VDSMS.
88
88
157.425
157.425
Commercial, Intership only.
VDSMS.
Please be aware that:
• Recreational boaters normally use channels listed as Non-commercial: 68, 69, 71, 72 1078.
• Channel 70 is used exclusively for DSC and is not available for regular voice communications.
• Channels 75 and 76 are reserved as guards bands for channel 16 and are not available for regular voice
communications.
Note:
1.
Four digit channels indicate 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
metres or greater are required to guard VHF channel 13, in addition to VHF channel 16, when operating
within US territorial waters.
3.
Channel 15 is receive only.
4.
Channel 16 is used for calling other stations or for distress calls.
5. Channel 17 and channel 77 have a fixed power output of 1 watt.
6. Channel 13 and channel 67 have an initial power output of 1 watt. User can temporarily override this
restrictions to transmit at high power.
7.
VDSMS (VHF Digital Small Message Services). Transmissions of short digital messages in accordance
with RTCM Standard 12301.1 is allowed.
WX Channels (North America only)
Weather Channel
Frequency in MHz
WX1
162.550
WX2
162.400
49
