Chart Speed; Quad Layout (With Optional-Purchase Quadrabeam Plus™ Transducer, Side Beam View Only); Bottom Lock (Sonar Zoom View Only) - Humminbird 1158c Combo Installation And Operation Manual

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 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.
Quad Layout allows you to choose how sonar information is displayed in the Side Beam View.
The Side Beam View displays sonar data from the left and right 455 kHz beams, as well as the
200 kHz down-looking beam. The sonar data can be displayed in any of the following layouts by
changing the Quad Layout setting: Default, Classic, and Slanted. See Views: Side Beam View
for more information.
NOTE: Quad Layout is only available when an optional-purchase QuadraBeam PLUS™ transducer is
attached and the Side Beam View is active (see Sonar Menu Tab: Transducer Select).
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.

Chart Speed

Settings: 1-10, where 1 = Slow, 10 = Fastest; Default = 5
Quad Layout
(with optional-purchase QuadraBeam PLUS™ Transducer, Side Beam
View only)
Settings: Default, Classic, Slanted; Default = Default
Bottom Lock
(Sonar Zoom View only)
Settings: Off, On; Default = Off
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Sonar X-Press™ Menu