JRC JMA-5912-6 Instruction Manual page 345

[III] Gate Size Adjustment (Gate Size)
Use the target tracking function (TT) to set a target search area.
The gate size is adjusted to an optimal value, so do not change it carelessly.
Procedures 1. Open the Serviceman Menu.
2. Open the Gate Size menu by performing the following menu
operation.
3. Select a gate size.
[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.
Procedures 1. Open the Serviceman Menu.
2. Open the TT (Target Tracking) menu by performing the following menu
operation.
3. Press the [6] key.
The Limit Ring item is turned on / off.
9. SP/TT Initial Setup
→ 2. TT
→ 5. Gate Size
Wide : Large gate size
Normal : Medium gate size
Narrow : Small gate size
9. SP/TT Initial Setup
→ 2. TT
Off : Limit ring not displayed
On : Limit ring displayed
7-26
7.3 Adjustment
7