1c. Press and release the SCAN key for 3 seconds to enter Priority Scan mode. The Priority Scan (P) icon will appear on the LCD just before the Scan icon.

2.During any of the Scan modes, press the Up or Down Channel keys to change the scan direction. Up increases the channel number while Down decreases it.

3.Press and release the SCAN key to terminate the Scan mode.

NOTE: During Scan mode, the WX/BAND, MEM, and DUAL/TRI Watch keys will not function and will sound an error beep if pressed.

12. Accessing Channels Saved to Memory

Once channels have been saved, you can easily access them by pressing the MEM key. Once in Memory mode, only the channels saved to memory will be accessible using the Up or Down Channel keys.

To access saved channels:

1.Press the MEM key. The Stored and M icons will appear on the LCD to indicate that you are in Memory mode.

2.Use the Up or Down Channel keys to scan through the saved channels.

3.Press the MEM key again to regain access to all channels.

13.Using the Watch Monitor Modes

The Humminbird® VHF55S is equipped with two types of monitor modes: Dual Watch and Tri Watch.

Dual Watch monitors the current working channel and Channel 16 alternately.

To activate and terminate Dual Watch mode:

1.Press and release the DUAL/TRI Watch key to activate the Dual Watch mode. The DU icon will appear on the LCD.

2a. Press and release the DUAL/TRI Watch key again to terminate Dual Watch mode and return to the previous working channel.

or...

2b. Press and hold the DUAL/TRI Watch key for 3 seconds to terminate Dual Watch mode and enter into Tri Watch mode. The TRI icon will appear on the LCD.

NOTE: During Dual Watch mode, the SCAN, MEM, WX/BAND, and the Up and Down Channel keys are inactive and will sound an error beep if pressed.

Tri Watch monitors Channel 16, Channel 9 and the current working channel.

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Humminbird VHF55S manual Accessing Channels Saved to Memory, Using the Watch Monitor Modes, To access saved channels
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VHF55S specifications

The Humminbird VHF55S is a high-performance marine VHF radio that stands out for its robustness, ease of use, and advanced features tailored for maritime communication and safety. Designed for boaters who value reliable communication at sea, the VHF55S is an essential tool for both recreational and professional mariners.

One of the key features of the Humminbird VHF55S is its built-in Digital Selective Calling (DSC) function. This technology enables users to send a distress signal with their vessel’s GPS coordinates, facilitating prompt assistance in emergencies. The DSC capability is a crucial safety feature that enhances the overall safety of boat trips, providing peace of mind for skippers and crew alike.

The VHF55S operates on all international VHF marine channels, offering full coverage and ensuring that boaters can communicate effectively with other vessels and shore stations. Its powerful 25-watt transmit power guarantees clear communication over long distances, making it ideal for offshore adventures.

Another significant aspect of the VHF55S is its intuitive interface, designed for user-friendly operation. The large, bright LCD display ensures visibility even under bright sunlight or at night. The radio is equipped with large buttons that facilitate quick access to commonly used functions and channels, minimizing the learning curve for new users.

In addition to its core functionalities, the VHF55S features advanced scanning capabilities, allowing users to monitor multiple channels simultaneously. This ensures that no important communications slip through the cracks, which is particularly advantageous during busy boating seasons or when navigating crowded waterways.

The Humminbird VHF55S is built to withstand the harsh marine environment. Its rugged design features a water-resistant housing, making it resilient against splashes and the dampness often encountered on the water. Furthermore, the unit is compact and lightweight, allowing for easy mounting in various locations on a boat without occupying too much space.

For connectivity, the VHF55S allows integration with other marine electronics, such as chartplotters and GPS devices. This capability enhances situational awareness and aids in navigation by providing real-time communication data and positioning information.

In summary, the Humminbird VHF55S is a state-of-the-art marine VHF radio that combines essential safety features, advanced communication technologies, and a user-friendly design. With DSC capability, robust construction, and versatile functionality, it is an indispensable device for anyone navigating the waters, ensuring that users remain connected and safe at sea.
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