Furuno CSH-5L/CSH-8L manual Function Keys F1-F4, Operating the function keys, 3-10

3. ADVANCED SONAR OPERATION

3.8Function Keys (F1-F4)

A function key may be programmed two ways: set up the equipment according to fishing ground or target fish, or provide a shortcut for a menu item on the SONAR or SOUNDER menu.

Default function key programs (main items only)

Sonar Menu Item		Function Key			Default program
	F1	F2	F3	F4	F1: Short-range detection
TX OUTPUT	8	10	8	10	F2: Long-range detection
PULSE LENGTH	7	10	7	10	F3: Short-range detection
TX CYCLE	10	10	10	10	F4: Long-range detection
TVG NEAR	6	5	6	5
TVG FAR	6	8	6	8
HOR BEAMWIDTH	Narrow	Narrow	Narrow	Narrow
VER BEAMWIDTH	Wide	Narrow	Wide	Narrow
COLOR CURVE	4	1	4	1
COLOR RESPONSE	2	4	2	4

3.8.1Operating the function keys

1.Press desired function key. The equipment is set according to function key program, or a dialog box appears in case of shortcut operation. For shortcut operation, go to step 2. The illustration below shows the ERASE MARKS dialog box.

2.Press the same function key again within five seconds to set value or choose option. (Be sure to press the function key within five seconds; the dialog box is automatically erased after five seconds.) In case of the SONAR menu item ERASE MARKS use the function key to choose the item to erase and then press the [EVENT] key to erase.

ERASE MARKS

TRACK SHIP EVENT SHIP

ERASE MARKS dialog box

3.8.2Programming for fishing ground or target fish

1.Set up controls on the control unit according to fishing ground or target fish.

2.Press the [MENU] key to open the menu.

3.Use the [RANGE] control to choose [MENU MODE].

4.Use the [GAIN] control to choose SONAR.

5.Set all menu items (except TRANSMISSION) as appropriate.

6.Use the [RANGE] control to choose ASSIGN SETTING.

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