Raymarine DSM300 - Manual (Page 33)

Chapter 3: System Setup 33
• Radar Cursor In: displays the cursor from another radar on the chart display or
chart window (default - OFF).
• Chart Cursor In: displays the cursor from another or chartplotter on the radar
display or radar window (default - OFF).
Note: The remote display must have SeaTalk Cursor Out enabled.
• SeaTalk Cursor Out: enables the output, onto SeaTalk, of the display’s own
cursor (default - OFF).
• Cursor Echo Local: echoes the cursor position between open windows on the
same display (default - ON).
If you set the options to OFF, no cursor echo information is displayed.
Date and Time Settings
Set your preferred date format (DD/MM/YY or MM/DD/YY) and time format (12 or
24 hour). If you wish to display local time, use the soft keys to change from UTC to
the desired time offset. This can be up to plus or minus 12 hours, in hourly steps.
GPS SOG/COG Filter
The SOG/COG filter averages the velocity vectors to compensate for the
oscillating motion of the boat, giving a clearer indication of the boat’s course and
speed. The filter does not affect the calculation of the GPS position. The velocity
vectors calculated from the GPS Signal give an instantaneous measure of speed
and direction of the GPS antenna. The COG and SOG can therefore seem erratic
under certain conditions. For example, when a boat is moving slowly through
rough seas, the antenna moves from side to side as well as in the direction of the
boat.
Slow moving boats, or boats sailing in rough seas will benefit from a high setting,
whereas a power boat that can quickly change speed and direction will benefit
from a low setting.
Select the SOG/COG filter setting as required. This can be set to HIGH, MEDIUM or
LOW.
Compass Set Up
This option is used to calibrate a Raymarine heading sensor such as the Pathfinder
Smart Heading System. Controls are provided for LINEARISE COMPASS, which
detects and corrects for heading errors caused by metal objects, and ALIGN
HEADING, which matches the displayed heading to a known heading or transit.
Refer to the Handbook supplied with your heading sensor for more details.