Onwa KF-667 User Manual download pdf (Page 16)

2.6 Selecting Picture Advance Speed

The picture advance speed determines how quickly the vertical scan lines run across the screen.

When selecting a picture advance speed, keep in mind that a fast advance speed will expand the

size of the fish school horizontally on the screen and a slow advance speed will contract it.

1.Press the [BRILL] and [AUTO] keys together. The display should look something like the one

below. The fraction shown on the display denotes number of scan lines produced per

transmission. For example, 1/8 means one scan line is produced every eight transmissions.

0 freezes the display and it is convenient for observing an echo.

ADVANCE:1

(1/8)

2.Continue pressing the [BRILL] and [AUTO] keys together to select desired speed.

2.7 Display Range Selection

The basic range and range shifting functions used together give you the means to select the

depth you can see on the screen. The basic range can be thought of as providing a window

into the water column and range shifting as moving the Window to the desired depth.

2.7.1 Basic range selection

The basic range may be selected with the [RANGE] switch from the eight ranges shown in the

table below.

Table 1-1 Basic ranges(default settings)

2-5

Range No

Meters

Feet

Fathoms

Passi/Braza(P/B)

1 2 3 4 5 6 7 8

5 10 20 40 80 150 200 300

15 30 60 120 200 400 600 1000

3 5 10 20 40 80 100 150

3 5 10 30 50 100 150 200

Shift

Display

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 34 35

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Onwa KF-667 User Manual Page 16