19
Chapter 2: Getting Started and Controlling the Chart Display
Controlling
the Chart
Tide Data
The symbol
indicates tide height data is available for that position on the
chart. The Raychart displays a graph of real time predictions of the maximum
and minimum tide heights for the selected day. A digital readout provides
sunrise and sunset as well as tide details for the selected day. Time is displayed
in the selected local time zone.
Note: Tide predictions are accurate for moderate weather conditions. However
severe weather patterns can affect actual time and height.
➤
To obtain tide height data:
1. Place the cursor over the tide symbol
. The tide height object data box
and the soft keys
EXPAND
,
ALL INFO
and
NEAREST
are displayed.
2. Press
EXPAND
. The data is displayed as illustrated below.
D4196_1
The time and draught are represented by a dotted vertical and horizontal line on
the graph. You can use the trackpad to move the lines; you move the vertical
line to select a time for which the tide height is displayed.
You can use the soft keys and trackpad to change the date for which tide
information is shown.
➤
To select a time, press the left or right side of the trackpad to move the cursor to
the required time.
➤
To change the day press
PREV. DAY, TODAY
or
NEXT DAY
as required.
Alternatively, press
SET DATE
; to change date, use the trackpad to move the
cursor left/right to select the digit and up/down to increase/decrease the digit.
The graph and tide data are updated.
Using
Chart Cards
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