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Chart Overview
MAP SOURCE
T
he ONIX and ION include built-in charts by Humminbird, Navionics, and C-MAP by Jeppesen. You can also install SD cards with
a
dditional chart information for a particular location (separate purchase required).
Humminbird is the default map source, but you can change the map source at any time. When you install an SD card, the control
head automatically chooses the best map to display. If you install more than one SD card, you can choose which map source you
want to use.
Compatible Map Sources: Humminbird LakeMaster, Navionics, and C-MAP by Jeppesen. Visit our Web site at humminbird.com for
compatibility details.
Install an SD Chart Card
Install an SD Card
1. Insert the card into the slot with the label facing up.
2. The control head automatically chooses the best chart to display. If more than one type
of SD card is installed, follow the on-screen prompts to select the map source.
Eject an SD Card
1. C-MAP by Jeppesen SD Cards Only: Tap the right corner of the status bar, or press the
POWER key. Select Eject C-MAP Card from the menu.
2. All SD Cards: Press the SD card into the slot and release. Pull the card from the slot.
WARNING! Do not leave the SD slot cover open. The slot cover should always be closed to prevent water damage to the unit.
Load Maps
Insert the SD card with the label facing up