Humminbird HELIX 9 Operation Manual page 92

Set up Humminbird LakeMaster
When a Humminbird LakeMaster map card is installed and selected as the chart source, additional menus are added to the menu
system. The menu options are determined by the map card you purchased.
Compatible Chart Sources: Humminbird LakeMaster, LakeMaster PLUS, ZeroLine Map Card, AUTOCHART PC, etc. Visit our Web site
at humminbird.com for compatibility details and updates.
NOTE: A Humminbird LakeMaster map card must be installed and selected as the chart source to enable this feature (see Change
the Chart Source).
Set the Water Level Offset
When you start your trip for the day, it is important to note if the water level is higher or lower than normal. For example, if you know
the lake is down 3 feet, set the Water Level Offset to -3.
1. Main Menu: Press the MENU key twice. Select the Chart tab.
2. Select Water Level Offset.
3. Press the RIGHT or LEFT Cursor keys to adjust the setting.
If the water level is higher than normal, set a (+) positive amount.
If the water level is lower than normal, set a (-) negative amount.
If the water level has not changed (normal), set Water Level Offset to (0) zero.
Water Level Offset (Set to 0 = Off)
NOTE: For additional LakeMaster map card menus, see Display LakeMaster Contour Lines and Depth Ranges in this manual. For
additional features related to your LakeMaster map card, visit our Web site at humminbird.com to download the accessory guide.
Chart Overview
Water Level Offset Adjusted to -4
If the water is lower than normal, set the Water Level Offset to a negative
number, and the land will extend visually on the map (as shown above). If the
water is higher than normal, set the Water Level Offset to a (+) positive amount,
and the water line will extend visually on the map.
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