NorthStar Navigation NorthStar 491 manual Introducing the displayed information, Echo sounding

Introducing the displayed information

Echo sounding

Depth and temperature

Navigation

Status tabs

The following information can be displayed on the ECHO screen.

•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

•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)

•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)

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.

491 Echo Sounder Operations Manual Page 15