Chart Speed; Bottom Range (Sonar Zoom View Only When Bottom Lock Is On); Bottom Lock (Sonar Zoom View Only); Cancel Navigation (Only When Navigating) - Humminbird 383c Operation Manual

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531450-1_A - 383c_Eng.qxd
11/18/2005

Chart Speed

Chart Speed determines the speed at which the sonar
information moves across the display, and consequently the amount of detail shown. A
faster speed shows more information in the Sonar Views and is preferred by most
anglers; however, the sonar information moves across the display quickly. A slower
speed keeps the information on the display longer, but the bottom and fish details
become compressed and may be difficult to interpret. Regardless of the Chart Speed
setting, the RTS® Window will update at the maximum rate possible for the depth
conditions. Adjust Chart Speed to your personal preference.
To adjust the Chart Speed:
1. Highlight Chart Speed on the Sonar X-Press™ menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to increase or decrease the Chart
Speed setting. (1-9, Ultra, where 1 = Slow, 9 = Fast, Ultra = Fastest, Default = 5)
Bottom Range
(Sonar Zoom view only when Bottom Lock is On)
Bottom Range allows you to control how much of the water column, measured up from
the bottom, is shown in the Sonar Zoom View. Choose a small value to see low-lying
bottom structure or details of the bottom return. Choose a larger value to see large
structure in deeper water. It is possible to set the Bottom Range to be greater than the
depth. In this case, you may see surface clutter in a wavy band that mirrors changes in
the depth.
To adjust the Bottom Range:
1. In the Sonar Zoom View, highlight Bottom Range on the Sonar X-Press™ menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Bottom
Range setting. (10 - 60 feet or 3-20 meters [International Models only],
Default = 15 feet)
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Bottom Lock
(Sonar Zoom view only)
Bottom Lock changes the mode of the Zoomed view in the Sonar Zoom View. Bottom
Lock continuously graphs the bottom at a constant point on the display regardless of
changes in depth. This "flattens" out the bottom contour, but is effective at showing fish
on or near the bottom.
To turn on Bottom Lock:
1. In the Sonar Zoom View, highlight Bottom Lock on the Sonar X-Press™ Menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Bottom Lock
setting to on. (Off, On, Default = Off)
Cancel Navigation
(only when Navigating)
Cancel Navigation discards the current route and exits Navigation Mode. This menu
choice will only appear when you are currently navigating a route. This will not delete a
previously-saved route.
To Cancel Navigation:
1. Highlight Cancel Navigation on the Sonar X-PressTM menu.
2. Use the RIGHT 4-WAY Cursor Control key to initiate canceling navigation.
3. The Confirm dialog box will appear. To cancel navigation, press the RIGHT
Cursor key once more. To avoid canceling navigation, press the LEFT Cursor key.
4. The Save Current Route dialog box will appear. Use the RIGHT 4-WAY Cursor key
to save the route or the LEFT 4-WAY Cursor key to decline saving the route.
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