Furuno CH-250 manual Transducer frequency adjustment, Demonstration mode

5.4.10 Transducer frequency adjustment

If the CH-250 is receiving interference from a video sounder or other sonar on board your ship, adjust the frequency of the CH-250’s transducer to reduce the interference.

	** TX FREQ ADJUST **
FREQ SHIFT	:	60.0	kHz (57-63 kHz)

: CHANGE MENU: END

Figure 5-21 TX frequency adjustment menu

5.4.11 Demonstration mode

The demonstration mode provides a simulated sonar picture which helps you become acquainted with how your sonar works. Connection of the transducer is not required. All controls are operational.

1.Display the SYS menu.

2.Select DEMO MODE.

3.Press to open the menu.

		** DEMO MODE **
DEMO MODE	:		OFF	ON

: CHANGE MENU: END

Figure 5-22 Demo mode menu

4.Select OFF or ON as appropriate and press the [MENU] key. (DEMO) appears at the top of the screen when the demonstration mode is active.

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