Garmin gpsmap 292 Manuale Utente

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GPSMAP 292/298 Owner’s Manual 
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To calibrate the water speed:
1.   Use the 
ROCKER to highlight Calibrate Water Speed, and 
press 
ENTER.
2.  Bring the boat to a cruising speed. Both the top GPS ground 
speed and uncalibrated water speed appear at the bottom 
of the calibration window. Note your top speed, stop the 
boat, and press 
ENTER.
3.  By default, the top speed automatically appears in the 
What 
was your top water speed? field. If a ground speed is not 
available, the top uncalibrated water speed is used instead. 
If the new speed is correct, highlight 
OK, and press ENTER
If you want to manually enter a calibration, press 
ENTER on 
the speed field, enter a new speed, and press 
ENTER.
  NOTE: If the boat is not moving fast enough or the speed 
sensor is not registering a speed, a “Boat Is Not Moving Fast 
Enough To Calibrate” message appears at the bottom of the 
screen. Check that the speed sensor wheel is moving or safely 
increase boat speed. If there is a problem with the speed sensor, 
or if a speed senor is not installed, a “Water Speed Sensor Is 
Not Working” message appears at the bottom of the screen. 
Check the connections of the speed sensor cables.
Graph Sub Tab
Fish Symbols—allows you to determine how the graph shows 
underwater targets and background information. If fish symbols 
are set to Off, the unit shows all available information about the 
underwater environment. If a fish symbol is selected, the graph 
shows only the information related to that symbol. Actual fish 
returns can not always appear as perfect arches (like in Simulator 
Mode), due to the speed or other conditions. 
  OFF (default)the Fishfinder does not interpret the sonar 
return data. 
 
—suspended targets appear as symbols. No 
background information appears.
 
—the same as above with the target depth shown.
 
—suspended targets appear as symbols. Background 
information appears, making the distinction between fish and 
structure easier.
 
—the same as above with the target depth shown.