5
5.1
5 – 4
[III] Setting the gate size
The gate indicates "the area where the radar computer monitors a target which is being tracked." When the
gate size is too large, the target will not be lost, but the target might swap to another adjacent target.
When the gate size is set to SMALL, target swap is less likely to occur but there is a risk
that the target may not be tracked and therefore be lost.
Usually, the gate size is set to "NORMAL".
The gate size should only be set to "SMALL" when there are may tergets close together (for example -
within the approaches of a port) and the risk of target swap is high.
ATA TEST
1. TEST VIDEO VDG      VDH      VDL
2. VECTOR CONST 7
3. VIDEO TD LEVEL 2 4
4. VIDEO HIGH LEVEL 1 8
5. VIDEO LOW LEVEL    6
6. GATE SIZE
NORMAL       SMALL
7. ATA NOISE LEVEL 220
8. ATA FTC LEVEL 214
Procedures
1. Press the 
SUB
MENU
 key to open the SUB MENU.
2. Press the 
5
 key to open the ATA #1 menu.
3. Press 
9
 key to open the ATA #2 menu.
4. Press the 
3
 key to open the ATA TEST menu.
5. Press the 
6
 key to select "GATE SIZE".
6. Press the 
6
 key to select "NORMAL" or "SMALL".
7. Press the 
ENT
 key to set the gate size.
Exit