Polar Tables - Raymarine a65 Operation Instructions Manual

2. Select the time period that you want the historical
data to cover.
Historical Laylines can be reset at any time by
selecting Reset Min & Max Laylines from the
Laylines Set-up menu.
188

14.16 Polar tables

Polar coordinate tables for your vessel can be
imported in .csv format. The layout of the .csv file
must adhere to the layout detailed below.
Spreadsheet programs such as Microsoft Excel can
be used to .csv files.
The following table layout constraints apply:
Column 1
• The first cell is ignored
• Column 1 must contain the relevant TWA angles
• A minimum of 3 TWA angles are required
Rows
• The first cell is ignored
• Row 1 must contain the relevant TWS values in
knots
• A minimum of 3 TWS values are required
Example table layout
1.0 2.5 5.0
45 0 1.6 4.1
65
0 2.1 5.0
120 0 2.1 5.1
165
0 1.0 2.6
y # #
# #
y
1. Increasing TWS values in knots
2. Increasing TWA values in degrees
3. Target vessel speed values in knots
Importing a polar table
Once the polar table has been created and saved as
a .csv file it can be imported into the MFD using a
MicroSD card.
With the MicroSD card containing the .csv file
inserted into your MFDs card reader:
From the Chart application's Laylines set-up menu:
Menu > Presentation > Vectors > Laylines Set-up.
1. Select Import Polar Table.
2. Browse to the location of the .csv file on your
MicroSD card and select it.
The polar table has now been imported and the
Polars option will be available from the Laylines
Type menu.
Note: The Polar table can be deleted from the
system at any time by selecting Delete Polar table
from the Laylines Set-up menu.
LightHouse multifunction display operation instructions
7.0
x x
5.3 # #
6.1 # #
6.4 # #
3.7 # #
# # # #
# # # #
1
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