FUNCTION KEYS
Similar to the quick dialing function on a telephone, the five function keys (F1–F3) on the main panel record control and menu settings and replay them back exactly as programmed. The items you can program are gain, display mode, TX ON/OFF, USER menu, SYSTEM menu, DATA SET menus and data setting win- dow. The function keys are useful for quickly setting up the so- nar for a specific purpose such as seabed detection.
Programming the Function Keys
1.Tune the sonar as desired.
2.Press the MENU key.
3.Select the FUNCTION KEY menu and press the MENU key.
Figure 6-1 FUNCTION KEY menu
4. Press the MENU key again.