2.7

Marker

Range and Bearing to Waypoint

2.8

Indication Unit

Meter, feet, fathom, P/B

2.9

Audio Monitor

2 W output (4 ohms), Freq. 1.0 kHz (external speaker required)

2.10

Event Mark

5 points

2.11

Hue

Low level enhanced echo disappeared

2.12

Red Color Enhancement

Strong echo indicated as expanded to range direction

2.13

Arrival Mark

Vector estimated point after 10 seconds to 6 min. (menu setting)

2.14

Target Lock (three function selected on menu)

 

Scanning Reverse

Scanning orientation changed by pressing key

 

Location Search

Auto-search for marker setting location

 

Echo Search

Auto-search for signal level in a search zone, or manual search

2.15

Clatter

Suppresses low intensity echoes.

3

TRANSCEIVER UNIT

 

3.1

Frequency

60/ 88/ 150 kHz, Auto-setting according to Hull Unit Specs.

3.2

Output Power

0.8-1.2 kW (due to frequency), power reduction function available

3.3

Output Pulse Length

0.2 to 20.0 ms, according to range

3.4

TVG

Level: 100 dB max. , Distance: 1000 m

4

HULL UNIT

 

4.1

Transducer Travel

400 mm or 250 mm

4.2

Raise/lower Time

30 s at 400 mm travel

4.3

Ship’s Bow Setting

Setting offset on menu at installation within ±30°

4.4Horizontal Mode Control

Scanning Angle

6°

to 360° , 24° step

Scanning Center

6°

steps, 360° setting available

Scanning Step Angle

Normal: 6° , High speed: 12°

Elevation Angle

+5° to 90° , 1° step

Auto Tilt setting

±2° to ±10°

4.5Time to Train Full Circle

60 kHz:

 

Range (m)

10

20

40

80

120

160

200

250

300

400

500

600

800

1200

1600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Time

 

Norm

9

9

9

9

10

13

16

20

24

32

40

48

64

97

 

128

 

 

(sec)

 

Fast

9

9

9

9

10

12

14

16

18

22

26

30

37

54

 

70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

150 kHz:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Range (m)

10

20

40

60

80

120

160

200

250

300

400

500

600

800

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Time

 

Norm

7

7

7

7

7

10

13

16

20

24

32

40

48

64

81

 

 

(sec)

 

Fast

7

7

7

7

7

9

11

13

15

17

21

25

28

36

45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SP - 2

E1316S01H

Page 114
Image 114
Furuno CH-250 manual Transceiver Unit