Chapter 6 MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series
Using The Menu
Operation Manual
6-20
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6.4.2.8
KEY SOUND (Key Click Sound)
This menu is used to turn on or off the key click.
Indication
Meaning
Selection
KEY SOUND
Key Click Sound
OFF, ON
6.4.2.9
BUZZER FREQ (Buzzer Sound Frequency)
This menu is used to set up the audio frequency of a key click. The frequency can be
selected among the frequencies ranging from 100 Hz to 9999 Hz.
Indication
Meaning
Selection
BUZZER FREQ
Buzzer Sound Frequency[Hz] 100 to 9999
6.4.2.10 ALARM MODE (Alarm Zone Set Mode)
This menu is used to set up the alarm zone shape.
Indication
Meaning
Selection
ALARM MODE
Alarm Zone Set Mode
VARIABLE, FIXED
Selectable alarm zones are as follows:
VARIABLE:
The alarm zone shape can be changed from a full circle to any form of
semi-circles. The depth and angle of the alarm zone can be set using the EBL and
VRM.
FIXED:
The alarm zone can be selected from three different shapes, the 90 degree,
180 degree and full circle.
6.4.2.11
TRAIL MODE (Echo Trail Mode)
This menu is used to select the type of trail presentations.
66% circle of the screen radius
Current ship’s bearing
CENTER reset OPPOSITE reset COURSE reset
Figure 6.1 Resetting point in the True Motion mode
