What’s On the Display
The 300 Series™ Fishing System can display a variety of useful information about the area
Depth - water depth; can be set to alarm when the water becomes too shallow.
Cursor - available in Freeze Frame and can be positioned in the Sonar View to provide depth of a sonar return and bottom depth below the cursor.
Temperature - water surface temperature.
Timer - Elapsed time with Temp/Speed
Accessory or GPS Receiver.
Distance - Distance traveled with Temp/Speed
Accessory or GPS Receiver.
Average Speed - Average speed reading with 
Temp/Speed Accessory or GPS Receiver.
Speed - if a Temp/Speed accessory or GPS Receiver is attached, the FishFinder can display the speed of the boat, and can keep a Triplog of 
nautical or statute miles traveled.
Second Sonar Return - when the sonar signal bounces between the bottom and the surface of the water and back again. Use the appearance of the second return to determine bottom hardness. Hard bottomswillshowastrongsecondreturn,whilesoft bottoms will show a very weak one or none at all.
Cursor Dialog Box - indicates cursor depth on the display and the depth of the bottom directly below the cursor. The Latitude and Longitude of the cursor position, the distance to travel to the cursor position and the bearing to the cursor position is shown with a GPSreceiver. A waypoint can be marked at the cursor position for later retrieval and use with a GPS receiver.
NOTE: Entries in this view that list (with Temp/Speed or GPS Receiver) are available if either only the information from the GPS receiver will be displayed on the view.
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