1.46A/D Converter Curve Setting

Video signal threshold level and color output setting (for the CRT) are executed when the video signal is converted from analog to digi- tal. Select the A/D curve according to objec- tive referring to the table below. The default setting is A.

1.Press the [MENU] key.

2.Press the [6] key twice to display the FUNC menu.

FUNC

1.FUNC1

2.FUNC2

3.F1

4.F2

5.F3

6.A/D CURVE A B C D

Figure 1-56 FUNC menu

3.Press the [6] key to select A/D curve set- ting, referring to the table below.

4.Press the [ENTER/SELECT] key followed by the [MENU] key.

Table 1-5 A/D curve settings

 

A lot of green but

Float detection

 

little red.

 

A

Noise is green in

Reduce sea reflections

 

color.

General navigation

 

 

 

B

Between A and

Normal use: Useful for

C.

target discrimination

 

 

 

 

Little green but

Long range detection

 

lot of red.

Buoy detection

C

Fine noise.

 

 

Noise in yellow

 

 

and red.

 

 

 

 

 

Little green but

Long range detection

D

lot of red.

Buoy detection

Fine noise.

Longer range detection

 

 

Noise in red.

than C

 

 

 

1.47 Enlarging Close-in Targets

The center enhance feature enlarges all ech- oes within the first range on any range.

1.Press the [MENU] key.

2.Press the [5] key twice to display the ECHO SIG menu.

3.Press the [0] key to turn CNTR ENHANCE on or off.

4.Press the [ENTER/SELECT] key followed by the [MENU] key.

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Furuno FR-1710 manual 46 A/D Converter Curve Setting, Enlarging Close-in Targets, A/D curve settings