Reducing Sonar Transducer Interference - MotorGuide Xi3 Wireless Edition Operation, Maintenance & Installation Manual

PRODUCT INSTALLATION, WIRING, AND BATTERY
The trolling motor is equipped with a Lowrance 7‑pin plug. Adapters are
available to connect other brands of sonar displays to the trolling motor. Match
the cable connector to the sonar port on the back of the sonar display. Power
up the unit to ensure that the sonar cable is connected securely.
Transducer Adapter Cables Available from MotorGuide
Lowrance 7‑to‑6‑pin adapter
Vexilar 3‑pin adapter
Garmin 6‑pin adapter
Humminbird 7‑pin adapter

Reducing Sonar Transducer Interference

The following items should be checked, in order, to help improve sonar
performance. Keep in mind, all sonar testing should be done on the water in
stable conditions.
1. Ensure you have separate grounds/no common ground between trolling
motor battery bank (12V, 24V, 36V) and engine/accessory battery bank
(12V).
2. Keep trolling motor power cables and sonar/electronics cables as far
apart as possible on the boat. (Example: Trolling motor cables routed on
the port side and electronics cables routed on the starboard side).
3. A multi‑bank charger that is connected to both the trolling motor bank and
engine/accessory battery bank can cause interference through the
common ground in the charger.
4. Ensure that none of your sonar cables are cut or damaged. Even
internally broken shielding can cause issues and can be identified by
carefully inspecting the rubberized outer coating for crimps, bends, and
flattened areas. Repair/replace as necessary.
5. Check for common external sources of interference and temporarily
remove or disable these to test for improvements in sonar performance.
These include:
eng
INFORMATION
a
a - Harness—to nose cone
sonar
b - Lowrance 7‑pin plug—
to sonar display
b
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