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5. ATTACH A GPS RECEIVER (OPTIONAL-PURCHASE)

It is strongly recommended that you use your Humminbird® VHF255S with an optional- purchase GPS Receiver. You will not be able to take full advantage of all of the Digital Signal Calling (DSC) features without connecting a GPS Receiver to the radio. Perform the following procedure to connect a GPS Receiver to your radio.

To VHF255S DSC

Yellow

Green

Orange

Black

1.Line up the arrow on the connector with the arrow on the GPS cable (supplied) and then plug together. Connect the yellow and the green wires from the GPS cable to the appropriate NMEA 0183-compatible GPS Receiver as indicated by the following pinouts and your GPS Receiver Operations Manual. The GPS cable has 8 pins with the following functions:

Pin

Wire

Function

1

Red

Not used.

2

Orange

NMEA OUT (+)

3

White

Not used

4

Yellow

NMEA IN (+) from GPS Receiver

5

Green

NMEA IN (-) from GPS Receiver

6

Black

NMEA OUT (-)

7

Blue

Not used

8

Grey

Not used

 

 

 

NMEA 0183 Version (1.5 to 3.0) sentence format: GLL, GGA, RMS, GNS, DSC, DSE.

NOTE: Never short wires, as doing so may damage your radio or your boats power system.

NOTE: The orange and black leads are the VHF255S radio’s NMEA 0183-compatible output. When a DSC call is received, these outputs will return the DSC and DSE sentences as per the NMEA 0183 standard. This connection is typically used with chartplotting or similar equipment.

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Humminbird VHF255SW manual Attach a GPS Receiver OPTIONAL-PURCHASE
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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.
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