Target Based Range And Bearing - Sperry Marine Visionmaster FT ECDIS User Manual

ECDIS User Guide

Target Based Range and Bearing

An ERBL may be dropped on a selected target . The target's position is
then taken as the ERBL origin.
To drop an ERBL on a target:
1. Right click on the required target, this may
be a tracked target or an activated AIS
target, and select Adjust EBL /VRM1 from
the context menu. An EBL/VRM (carried)
is created with its origin at the centre of the
target and the ERBL window is activated.
2. To adjust the range and bearing of the ERBL move the trackball,
left click to select the values. The ERBL origin continues to update
with the target position, both while the range & bearing adjustment
is taking place and also after the range & bearing values have
been selected.
The range & bearing values of the ERBL remain constant after they are
selected. The values of the ERBL may be re-adjusted at the EBL/VRM
readout. For more details, refer to Chapter 11 Electronic Range and
Bearing Lines .
If the selected target is dropped or cancelled, the ERBL reverts back to
normally offset and is dropped at the last target position.
65900012
Annex A – Static Site
Annex A-7