Humminbird 531438-1_A - Manual (Page 8)

8 7
What’s On the Display
The 700 Series™ Fishing System can display a variety of useful information about the area under and adjacent to your boat, including the following items:
NOTE: Entries in this view that list (with Temp/Speed or GPS Receiver) are available if either optional-purchase device is connected to the 700 Series™ Fishing System. If both devices are
connected, then only the information from the GPS receiver will be displayed on the view.
Timer - elapsed time with Temp/Speed
Accessory or GPS Receiver.
Average Speed - average speed reading with
Temp/Speed Accessory or GPS Receiver.
Depth - water depth; can be set to alarm
when the water becomes too shallow.
Speed - if a Temp/Speed accessory or GPS
Receiver is attached, the 700 Series™ 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
bottoms will show a strong second return,
while soft 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.
Battery Voltage - the voltage of the boat’s
battery; can be set to alarm if the voltage falls
below a certain point.
RTS® (Real Time Sonar) Window
Soft Bottom
Thermoclines - layers of water with different
temperatures that appear at different depths
and different times of the year. A thermocline
typically appears as a continuous band of
many gray levels moving across the display at
the same depth.
Structure - where fish may be hiding.
Fish - fish are displayed as arches and/or fish
icons, and the unit can be set to alarm when a
fish of a certain size is detected. When a target
is detected and Fish ID+ is on, a Fish ID+
TM
symbol with depth is displayed. The size of
the symbol shows the intensity of the sonar
return. The unit will clearly show schools of
Bait Fish as "clouds" of different shapes and
sizes, depending on the number of fish and
boat speed.
Bait Ball
Hard Bottom
Rocky Bottom
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.
Distance - distance traveled with Temp/Speed
Accessory or GPS Receiver.
Temperature - water surface temperature.
83 kHz, Wide Beam Hollow Fish Symbol
200 kHz, Narrow Beam Shaded Fish Symbol
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