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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