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Describes the Z-7200 Liquid Crystal Graph, its features, warranty, and initial setup guide.
Details how to physically install the Z-7200 unit, including bracket base and cable routing.
Guides on minimizing electrical and acoustic noise for optimal sonar performance.
Refers to separate instructions for transducer installation.
Adjusts receiver sensitivity in 32 steps for optimal target display.
Select and adjust the displayed depth range using up/down arrow keys.
Doubles the size of targets on the display for closer examination.
Controls the power state of the Z-7200 unit, confirmed by an audible beep.
Activates or deactivates the display and keyboard illumination.
Sets the chart speed from very slow to fast across 10 distinct levels.
Controls the zone alarm, commonly used for fish detection and alerts.
Accesses the unit's menus by pressing the range keys simultaneously.
Toggles between automatic adjustments and manual control of the unit.
Explains the sensitivity bar, AUTO mode, chart scrolling, and range markers on the display.
Describes how the unit finds and displays bottom depth, including range and scale interpretation.
Describes thermoclines and their importance for fish location.
Provides guidance on using the sonar for efficient lake exploration.
Press the ON key to activate the unit; it automatically finds depth and adjusts sensitivity.
Press the OFF key to power down the Z-7200 unit.
Use the AUTO key to switch between automatic adjustments and manual control.
Manually adjust sensitivity using arrow keys; the sensitivity bar indicates the level.
Fish signals appear as arches, affected by transducer angle, water depth, and sensitivity.
Water temperature influences fish activity; thermoclines are areas where fish are active.
Fish are shown as shaped markings, commonly a characteristic arch, distinguishing them from bottom signals.
Arches form as fish move through the transducer's cone, with distance variations indicating position.
Controls chart scrolling speed using FAST and SLOW keys, with 10 steps.
Allows freezing the display by pressing chart arrow keys simultaneously for examination.
Uses scale markers on display sides to determine target depth.
Range adjusts automatically to keep the bottom signal on display.
Doubles target size for detailed viewing, creating a 'window' of a selected depth range.
Offers 8 and 20-degree transducers; 20-degree for shallow/medium water, 8-degree for deep water.
Details the area covered by 8 and 20-degree transducers at various depths.
Manually set the lower depth limit by disabling AUTO mode and using range keys.
Change zoom window size by pressing range arrow keys, creating a focused depth view.
Tracks the bottom depth automatically by adjusting zoom window limits.
Shows signal strength and bottom composition (soft/hard) via a gray line.
Select display units for depth: feet, fathoms, or meters.
Turn the upper and lower range limit displays on or off.
Adjusts pulse width for better target separation; Z-7200 increases it with range.
Digitally discriminates valid bottom echoes, displaying only bottom depth.
Allows selection of small or large digital depth display sizes.
Set the zone alarm 'window' to alert when echoes fall within a specific depth range.
Turns the zone alarm bar on continuously for constant monitoring.
Adjusts the Grayline level to show signal strength and bottom composition.
Changes Grayline pattern from checkerboard to horizontal lines.
Turns the unit's display and keyboard illumination on or off.
Adjusts the speaker volume from soft to loud.
Eliminates noise signals to display only true target echoes.
Displays the bottom depth in tenths of a foot up to 99.9 feet.
Selects between small and large digital depth display sizes.
Adjusts the discrimination level from 0 (off) to 10 (high) for noise reduction.
Reduces or eliminates surface clutter by varying receiver gain.
Turns the digital depth display feature on or off.
Minimizes display jitter by averaging bottom readings for stability.
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