Northrop Grumman Sperry Marine VisionMaster FT, User Manual

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Radar/Chart Radar User Guide Electronic Range and Bearing Lines
65900010 9-5
2. When Offset is selected, the EBL is immediately positioned
wherever the cursor is on the video circle. Using the trackball,
move the EBL to the required offset location. When the EBL is
offset, the origin of the EBL is indicated by a white dot.
3. Left click to position, the EBL is now in Carry mode and moves
relative to own ship. Or right click to cancel and return EBL to the
CCRP.
Where Drop Origin (D) or Drop EBL / VRM is selected:
1. A white dot is displayed at the origin of the EBL and the EBL and its
associated VRM caption are shown with the suffix (D) . Unlike
Offset, the EBL does not move when the cursor moves. When the
cursor is positioned over the EBL origin it changes to a bidirectional
arrow indicator.
2. To move, left click and hold on the EBL origin. With the left button
held down, use the trackball to move the EBL to the required
location and release the left button to drop the EBL. The EBL
remains stationary in the selected location.
To re-position the EBL back to own ship's CCRP
either right click on the EBL caption and select
Centre Origin from the drop down window, or
right click on the EBL dot and select Centre EBL
/ VRM from the semi-transparent window.
When Drop End Point (E) is selected from the EBL readout:
1. The EBL and VRM captions are shown with the suffix (E). As the
ship moves, the EBL/VRM range and bearing are continually
updated to the dropped intersection point.
2. To cancel Drop End Point right click on the readout and select
Carry End Point .
3. Or to drop the EBL/VRM at the current position select Drop Origin
(D) from the drop down window, or right click on the EBL origin and
select Drop EBL / VRM.