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U.S. Marine Channels

Channel

Ship Transmit

Ship Receive

Use

No.

MHz

MHz

 

27

157.350

161.950

Public Correspondence (Marine Operator).

28

157.400

162.000

Public Correspondence (Marine Operator).

63A

156.175

156.175

Port Operations and Commercial, VTS.

 

 

 

Available Only in New Orleans / Lower

 

 

 

Mississippi area.

65A

156.275

156.275

Port Operations.

66A

156.325

156.325

Port Operations.

67

156.375

156.375

Commercial. Used for Bridge to Bridge

 

 

 

Communications in Lower Mississippi River.

 

 

 

Intership Only.

68

156.425

156.425

Non-Commercial.

69

156.475

156.475

Non-Commercial.

70

156.525

156.525

Digital Selective Calling (Voice Communications

 

 

 

Not Allowed).

71

156.575

156.575

Non-Commercial.

72

156.625

156.625

Non-Commercial (Intership Only).

73

156.675

156.675

Port Operations.

74

156.725

156.725

Port Operations.

77

156.875

156.875

Port Operations (Intership Only).

78A

156.925

156.925

Non-Commercial.

79A

156.975

156.975

Commercial. Non-Commercial in Great Lakes Only.

80A

157.025

157.025

Commercial. Non-Commercial in Great Lakes Only.

81A

157.075

157.075

U.S. Government Only - Environmental Protection

 

 

 

Operations.

82A

157.125

157.125

U.S. Government Only.

83A

157.175

157.175

U.S. Coast Guard Only.

84

157.225

161.825

Public Correspondence (Marine Operator).

85

157.275

161.875

Public Correspondence (Marine Operator).

86

157.325

161.925

Public Correspondence (Marine Operator).

88A

157.425

157.425

Commercial, Intership Only.

 

 

 

 

*VTS stands for Vessel Traffic Service, and is a system that provides active monitoring and navigational advice for vessels in particularly confined and busy waterways.

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Humminbird VHF255SW manual 157.350 161.950

VHF255SW specifications

The Humminbird VHF255SW is an advanced VHF marine radio designed for reliability and performance on the water. It is built for recreational boaters, offering a combination of essential features and cutting-edge technologies that enhance communication and navigation safety.

One of the standout features of the VHF255SW is its robust 25-watt output power, which provides extended range communication, allowing users to reach distant vessels and shore stations effectively. This high power output is crucial in emergency situations or when out on open water, ensuring that skippers can maintain contact when it matters most.

The radio is equipped with a built-in Class D Digital Selective Calling (DSC) capability, which is designed to enhance safety. This feature allows users to send a distress signal automatically to the coast guard and other vessels within the vicinity, including their location coordinates. The DSC functionality can be a lifesaver in case of an emergency, providing peace of mind for boaters.

Another key characteristic of the VHF255SW is its large, high-contrast LCD display, which is easy to read even in bright sunlight or at night. The multi-color display features adjustable backlighting, ensuring users can navigate and communicate effectively in various lighting conditions. The intuitive user interface simplifies operation, making it accessible for even the most novice boater.

Additionally, the Humminbird VHF255SW is equipped with a built-in GPS receiver, which allows for enhanced positioning and mapping capabilities. This integration enables users to access real-time information, making navigation smoother and more efficient. The unit also supports navigating to specific waypoints and routes, making it an excellent tool for fishing and exploring new waters.

The radio is designed with a rugged, waterproof housing that meets IPX7 standards, meaning it can withstand submersion in water for short periods. This durability ensures that it operates reliably in rough marine conditions. The Humminbird VHF255SW also features a noise-canceling microphone for clearer communication, minimizing background noise during transmissions.

In summary, the Humminbird VHF255SW blends important marine communication capabilities with advanced technology. Its combination of high output power, DSC functionality, built-in GPS, and a user-friendly interface makes it an invaluable asset for any boating enthusiast, ensuring safety and confidence on the water. With its rugged design and reliability, the VHF255SW is a smart choice for those who demand quality and performance from their marine radio.