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Test and Finish the Installation
Once you have installed both the control head and the transom transducer,
and have routed all the cables, you must perform a final test before locking the
transducer in place. Testing should be performed with the boat in the water.
1. Press POWER once to turn the control head on. If the unit does not
power up, make sure that the connector is fully plugged into the
terminal slot and that power is available.
2. If all connections are correct and power is available, the Humminbird
control head will enter Normal operation.
3. If the bottom is visible on-screen with a digital depth readout, the unit
is working properly. Make sure that the boat is in water greater than 2'
but less than the depth capability of the unit, and that the transducer
is fully submerged, since the sonar signal cannot pass through air.
NOTE: The transducer must be submerged in water for reliable transducer
detection.
4. If the unit is working properly, gradually increase the boat speed to test
high-speed performance. If the unit functions well at low speeds, but
begins to skip or miss the bottom at higher speeds, the transducer
requires adjustment.
5. If you have the correct angle set on the transducer, yet lose a bottom
reading at high speed, adjust the height and the running angle in small
increments to give you the ideal transducer position for your boat. First,
adjust the height in small increments (Figure 22).
NOTE: The deeper the transducer is in the water, the more likely that a rooster
tail of spray will be generated at high speeds, so make sure that the transducer
is as high as it can be and still be submerged in the water.
If you are still not getting good high speed readings, you may need to
disassemble the transducer mounting assembly and re-position the ratchets
(Figures 17a - 17d).
If you do change the transducer position, re-trace the position of the
mounting bracket before proceeding.
Transom Transducer Installation
16
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