Recommended Tools and supplies

gram most suited to your brand of radio or other device. If your device manual indicates an RS-232 connection (i.e., a computer), remove the resistor and diode and connect using Wiring Diagram B. Most other connection types (TTL; NMEA + and NMEA –; differential) will re- quire Wiring Diagram A.

Recommended tools for this job include: wire pliers or wire stripper and a

wire cutter. Required supplies for this job include: two gray (18 gauge) or blue (16 gauge) wire nuts and electrical tape. Supplies are not included.

Wiring Diagram "A"

Begin by stripping the wire ends of the device you're connecting to the M68i. (You'll notice the M68i's data cable comes pre-stripped, with wire ends exposed.) Use a pair of wire pliers to strip about 1/4-inch (6.35 mm) of insulation from each of the radio's or other device's data wires.

Strip the ends of the VHF radio's data wires. Connect them to the pre-

stripped wires of the M68i's data cable (shown right).

Twist the exposed wires together as shown in the following figures. If you're using a Uniden or similar radio, connect the radio's NMEA Wire to the M68i data cable's yellow wire, and the radio's Ground/Shield wire to the M68i data cable's black shield wire. If you're using another radio brand or NMEA device, see Wiring Diagram B instructions at the end of page 3.

	Yellow (Transmit)
Com port
Com port		Shield (Ground)
to M68i		Shield (Ground)
to M68i

NMEA Wire (Receive) or NMEA +

To Uniden

Ground/Shield or NMEA – radio or other device

Com port wiring to transmit NMEA information to a Uniden or similar VHF radio or other device.

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.