Eagle Electronics FishElite 642c - Manual (Page 88)

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Sonar Page (left). Sonar Page zoomed 2X (center).
Sonar Page zoomed 4X (right).
Zoom Pan
Your unit has the handy ability to quickly zoom in on any portion of the
water column. Zoom Pan lets you rapidly move the zoomed area up and
down the display. By pointing your zoom at different portions of the
chart as it scrolls, you can get a close-up look at structure or cover below
you.
To use Zoom Pan, you will have to turn off Auto Depth Range. To do
this, press
MENU and select Auto Depth Range. Press ENT to uncheck
the box next to it, then press EXIT | ZIN and use
↑ ↓ to pan up and down
the water column. Press ZOUT to return the display to the normal Zoom
range.