Raymarine C-Series Reference Manual page 123

Chapter 5: Using the Radar
Circular guard zone
To set up a circular guard zone:
ZONE SHAPE
SECTOR
1. Toggle ZONE SHAPE to CIRCLE.
2. Press SET INNER to highlight the soft key label. The inner limit is highlighted.
3. Use the rotary control to set the inner limit of the guard zone..
4. Press OK to accept the adjustment.
5. Repeat steps 2 to 4 for the SET OUTER limit.
You can also push the rotary control to accept an adjustment. Doing this also
Note:
toggles control to the next setting.
SET INNER
CIRCLE xx.xx nm
SET OUTER
xx.xx nm
5-21
Circular
Guard Zone