1. RADAR OPERATION
1-94
1.50 Reference Point for CPA/TCPA
The common reference point for CPA/TCPA can be chosen from antenna
position or conning position as shown below. Echo sweep center and sector
blanking symbol are always referenced to antenna position regardless of
reference point chosen. For conning position, which is entered at installation,
EBL and VRM are referenced to conning position.
1. Roll the trackball to choose the Reference Point Box at the top of the screen.
REF POINT
ANT POSN
Reference point box
2. Push the right button to choose ANT POSN or CONN POSN as appropriate.
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