3.7 Suppressing Interference
Interference from other acoustic equipment operating nearby or other electronic equipment may show itself on the display as de- picted in the figure below.
Electrical equipment | Video sounder | Noise limiter on |
interference | interference |
|
Figure 3-15 How the noise limiter function works
To suppress interference, do the following:
1)Press the [MENU ESC] key.
2)Press the [6] key to display VIDEO SOUNDER SETUP menu.
3)Press the [▼] or [▲] key to select NOISE LM.
4)Press the [t] or [s] key to select degree of suppression de- sired; the higher the number the greater the degree of suppres- sion..
5)Press the [MENU ESC] key.
3.8Knowing Depth Change by Depth Alert Alarm
The DEPTH ALert function alerts you to change in depth. Depth change direction is given by alarm interval; the longer the interval the greater the change in depth.
To turn on or off the depth alert, do the following:
1)Press the [MENU ESC] key.
2)Press [6] key to display VIDEO SOUNDER SETUP menu.
3)Press the [▼] or [▲] key to select DEPTH AL.
4)Press the [t] or [s] to select ON or OFF.
5)Press the [MENU ESC] key.
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