JRC JMA-5212-4/6 User Manual page 378

[IV] CPA Limit Ring Display On/Off (Limit Ring)
Use the target tracking function (TT) to determine whether to display the CPA limit for determining a
dangerous ship. When the CPA limit ring display function is turned on and a relative vector is used, the CPA
limit ring is displayed as a red circle.
Procedure 1
2
3
4
5
6
Exit 1
Hold down [RADAR MENU] key.
The Code Input Menu will appear.
Press [0] key.
Move the cursor onto the "ENT" button
in the Code Input menu, and press
[ENT] key.
The Adjust Menu will appear.
Press [8] key while Adjust Menu is
open.
SP/TT INIT Setup menu opens.
Press [2] key.
TT menu opens.
Press [6] key.
Activate or deactivate the CPA limit ring display function.
Off: Limit ring not displayed
On: Limit ring displayed
Press [RADAR MENU] key.
The Main Menu will reappear.
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