NorthStar 491, Руководство по эксплуатации

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491 Echo Sounder Operations Manual Page 15
Introducing the displayed information
The following information can be displayed on the
ECHO
screen.
Echo sounding
• echo sounder data
• echo sounder frequency in use (50 or 200 kHz or both)
• A-scope
• automatic mode indicators (fishing or cruising)
• manual operation indicator
• echo colors in use (the “color bar” at the far left)
• SoundTrac’s position marker for scrolling to old echoes
Depth and
temperature
• water-depth digital display (on the left side of the screen)
• depth scale (on the right side)
• depth marker (press the
CURSOR PAD
to scroll the
marker down)
• water-temperature digital display (if temperature sensor is
connected; can be turned off)
• water temperature graph (if temperature sensor is con-
nected; can be turned off)
Navigation
• vessel’s current lat/lon (on the
SOUNDTRAC
screen, this
lat/lon indicates the position marker’s location)
• vessel’s SOG and COG
• active waypoint, if any, and graphic steering indicator
• vessel’s Speed Through the Water (if speed sensor is con-
nected; can be turned off)
Status tabs
To help you use the echo sounder’s functions, many of the
key’s labels on the right edge of the screen show the status of
that key’s function in a tab directly under the label.