Pub. 988-0152-061

Addendum I

Additional Instructions for

Lowrance M68i S/Map

Your sonar/GPS unit, the M68i, functions exactly like the M68 de- scribed in the manual provided (part 988-0152-031). In addition, the M68i contains a communications port for NMEA 0183 output. The in- structions for connecting data cables and setting up the communica- tions port appear in this addendum. The back page also includes a cor- rection note for an error in the M68 manual.

NMEA 0183 Cable Connections

NMEA is a standard communications format for marine electronic equipment. The M68i can send information to any device that receives NMEA 0183 data. This allows the unit to work with VHF marine radios equipped with the Digital Selective Calling (DSC) distress call feature.

To send NMEA 0183 data, the M68i has one NMEA 0183 version 2.0 communication port. The com port can be used to send NMEA format- ted data such as your current position.

The provided M68i data cable plugs into the accessory socket on the right side of the back of your unit's case. This socket can connect either an accessory such as a speed or temperature sensor or a NMEA 0183 data cable. The data cable ends in two wires that connect to your VHF radio or other NMEA device. The M68i uses the yellow wire to transmit and the black shield wire for signal ground.

NOTE:

Some VHF radios, such as the popular Unidenbrand, have input lev- els which require use of an additional diode and resistor built into the M68i data cable. This is Wiring Diagram A, which is described on page 2. The majority of the DSC radios will work with the resistor and diode as provided by Lowrance Electronics.

A few other radio brands (and other electronic devices) that meet the NMEA 0183 standard won't need these adapters and you will have to remove the resistor and diode to make those work. This is Wiring Dia- gram B, which is described on page 3.

Consult your other device's owner’s manual, then read through all of the following instructions before you begin. Use the installation dia-

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Lowrance electronic M68I owner manual Lowrance M68i S/Map, Nmea 0183 Cable Connections
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M68I specifications

The Lowrance M68i is a compact and versatile fishfinder designed for anglers who seek an efficient and reliable tool to enhance their fishing experience. This unit combines advanced technology with user-friendly features, making it suitable for both novice and seasoned fishermen.

One of the standout features of the M68i is its brilliant 6.4-inch display, which boasts a high-resolution color screen. This allows for clear visibility even in bright sunlight, enabling users to easily interpret data and locate fish beneath the water’s surface. The screen is also designed with a user-friendly interface that simplifies navigation through the device’s various settings and functions.

The M68i utilizes Lowrance's innovative Broadband Sounder technology, which provides exceptional sonar performance. This technology delivers clear and accurate readings, allowing anglers to differentiate between fish and their habitats with ease. The unit offers various depth and sensitivity settings, ensuring adaptability to different fishing conditions and environments.

In addition to its sonar capabilities, the M68i includes a built-in GPS system. The integrated GPS provides anglers with precise navigation, including the ability to mark waypoints and track routes. This is particularly useful for returning to successful fishing spots or navigating unfamiliar waters. The unit comes preloaded with detailed mapping and can support additional mapping options for enhanced coverage.

Another noteworthy aspect of the M68i is its rugged and waterproof design. This durability allows the device to withstand harsh marine environments, ensuring that it stays functional even under challenging conditions. The design is also convenient for mounting on various boats, making it a versatile choice for different fishing setups.

The M68i is equipped with several customizable features, enabling users to tailor the display to their specific needs. The unit allows for split-screen viewing, which is helpful for simultaneous sonar and GPS readings. Additionally, anglers can adjust color palettes and data readouts to enhance visibility and accessibility during their fishing trips.

Overall, the Lowrance M68i fishfinder stands out for its combination of advanced sonar technology, GPS capabilities, and robust design. It serves as a reliable tool for anglers looking to improve their fishing success and navigate waterways with confidence. Whether you're out for a leisurely day on the water or a serious fishing expedition, the M68i is well-equipped to support your needs.
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