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rSOUNDER MODEqAVAILABLE SCREENS AND INDICATIONS
⁄0Ship speed
⁄1Operation mode
⁄2Bearing
⁄3Frequency
⁄4[RANGE] key
⁄5Sensitivity level bar
⁄6Color pattern
⁄7Plotter alarm indication
⁄8Fishfinder alarm
This field shows the current ship speed.
When the system operates in auto mode (☞P.53), “AUTO” is indicated in this field.
This field shows the current bearing of the bow (at which the ship is navigated).
•T (TRUE); True bearing, M (MAG); Magnetic bearing (p. 66)
This field shows the frequency in use (Ó: high frequency, Ò: low frequency).
In the dual screen, the frequency specified on the Fishfinder Menu screen is dis-
played on the right.
This field shows the current setting (Range/Shift/Auto) of the range key.
The level bar indicates the sensitivity in 32 levels.
When the Sensitivity key is pressed to adjust the sensitivity level, the level bar
appears on the screen while highlighted in yellow.
The color pattern consists of eight colors arranged in descending order of reflec-
tion level. If the noise reduction function (☞P. 51) is ON, however, colors having a
lower reflection level may not be displayed.
The background color can be set to “Blue” or “Black” (☞P. 50). The image sensi-
tivity should be adjusted so that the portion close to the sea bottom is indicated in
red. If this portion has a yellow-green color, the depth or the shape of sea bottom
may not be detected due to weak reflection from the sea bottom.
Alarms indicated in this field include range alarm and arrival alarm.
Alarms indicated in this field include depth alarm, fish alarm and shoal alarm.
Red
[
Reflection strong Reflection weak
\
\[
Detection is enabled Detection is disabled
Orange Yellow Yellow-
green Green Light blue Dark blue
(Black)
Blue