27
User Manual
To enable (On) or disable (Off) the Cursor Echo follow the procedure:
[MENU] + "CHART FEATURES" + [ENTER] + "CURSOR ECHO" + [ENTER]
2.5
GUARD ZONES
Your Radar allows a function to help you avoid a collision. It is possible to set an
alarm to trigger when a target is within a specified zone, the Guard Zone.
It is allowed to display up to 2 Guard Zones, Sector or Circular.
Guard Zone
Fig. 2.5 - Guard Zone display
When a Guard Zone is active, the Guard Alarm sounds when a target enters its
area.
NOTE
A Guard Zone only operates when the whole zone is displayed on the screen.
In addition, a Guard Zone is inactive for 10 seconds after it is placed or re-
sized, to avoid inappropriate alarms during positioning.
2.5.1 Handling of Guard Zone
Positioning the Cross Cursor over a Guard Zone, causes the message "GZ" to be
displayed under the cursor. It is possible to handle the Guard Zone.
♦
[H
OOK
]:
allows changing Guard Zone range by moving up/down Cursor
Keys. Pressing
[C
ONFIRM
]
to confirm,
[C
ANCEL
]
otherwise.
♦
[T
YPE
]:
allows changing Guard Zone type: press
[S
ECTOR
]
to select the
Sector Guard Zone, press
[C
IRCULAR
]
to select the Circular Guard Zone.
♦
[O
FF
]:
disables the Guard Zone.
2.5.2 Guard Zone Sensitivity
It defines a limit (selectable from 0 to 100) under which echoes cause an alarm
condition, when detected inside a Guard Zone.
Guard Zone Sensitivity default is 50.
The value 100 is the most sensitive (the system is always on, every detected echo
cause an alarm condition) and the value 000 is the least sensitive (equal to switching
the alarm off).
To turn the alarm On or Off follow the procedure:
[MENU] + "GUARD ZONES" + [ENTER] + "GUARD ZONE" + [ENTER]
