Simrad NX40, Руководство по установке и эксплуатации

Страница: 81 / 116

Simrad NX40/45 Installation and Operation Manual 81
Attention areas displays attention area boundaries
and information icons ; attention
areas are important areas, such as
restricted anchorages or shallow
areas.
18-3 Setup > EchoSounder
>
Echo
Frequency There is a choice of:
200 kHz
,
50 kHz
and
Mixed
.
Scroll speed Use this to set the scroll speed on
the display. There is a choice of:
Very Fast
,
Fast
,
Medium
,
Slow
and
Pause
. The depth of the water also
affects the speed of the display.
Faster scroll speeds combined with a
slow boat speed (typically between
2 and 6 knots) shows the most fish
detail.
Medium
or
Slow
scroll speeds
result in echosounder information
being shown over a longer period, but
with less detail.
Fish depth labels When this is turned on, the
depth of a fish is printed next to the
fish arch.
Digit size Use this to remove or change the
size of the depth window on the
echosounder windows. There is a
choice of:
Small
,
Medium
and
Large
.
Palette Use this to select a color palette.
Each color within the palette
represents a different echo strength,
as shown on the echosounder
windows.
There is a choice of five color
palettes: Black, Blue, White, Vivid
and 8 color. The first four palettes
display more detail, and each color
covers a 1.5 dB signal range. The 8
color palette displays less detail, and
each color covers a 3 dB signal range.
Interference filter No filter, normal setting.
Filters the echo signal to remove
spiky interference such as engine
noise or echosounders on nearby
boats.
Noise filter Averages the echo signal to remove
rapid changes. Select Medium or High
to give a smoother bottom trace–this
may help to detect a deeper bottom;