Garmin GPSMAP 298C Owner's Manual - Page 85

Graph Sub Tab, Fish Symbols

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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. USING SONAR > SONAR TAB OPTIONS 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. GPSMAP 292/298 Owner's Manual 79

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GPSMAP 292/298 Owner’s Manual
79
U
SING
S
ONAR
>
S
ONAR
T
AB
O
PTIONS
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.