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The DeeperPRO/PRO+/CHIRP+ are suitable for trolling from your kayak or boat using the Deeper Flexible Arm
Mount. You can also cast these devices out from your vessel to scan hard-to-reach-spots or to avoid trolling over
your target areas. The Deeper START is suitable for casting from your kayak or boat.
Trolling
Once you have mounted your DeeperPRO/PRO+/CHIRP+ to your kayak or boat using theDeeper Flexible Arm
Mount,you are ready to troll. Trolling at higher speeds (for example, 3.5 mph / 5 kmph) is suitable for getting
general depth readings. Slow down to 2mph / 3kmph or slower for accurate fish finding and detailed scanning of
underwater structure.
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Mapping
The Fish Deeper app uses the GPS in your smartphone or tablet to create bathymetric (underwater contour) maps
as you troll. For this function, select boat mode(Settings > Boat mode). You will get a split screen display showing
both your mapping and your sonar readings.
If you are using the Deeper PRO or PRO+, it is recommended to use Narrow beam (290 kHz) for higher accuracy of
the mapping. If you are using the CHIRP, we recommend using High CHIRP or Mid CHIRP for higher accuracy of