Sperry Marine Visionmaster FT ECDIS, User Manual

Page: 398 / 531

Electronic Range and Bearing Lines ECDIS User Guide
9-2 65900012
Creating an ERBL
Each ERBL can be turned on or off independently. Previous settings are
maintained after they are switched off.
To turn on an ERBL do the following:
1. Left click on ERBL 1 and/or ERBL 2 buttons on the lower toolbar to
access both ERBL popup windows. The ERBL 1 and ERBL 2
windows are opened on the display.
Alternatively, turn the EBL rotary control on
the control panel to switch on EBL1.
If no bearing value has been previously
entered EBL 1 defaults to 5.0
o
starboard of
ship’s heading and EBL 2 defaults to 355
o
starboard. The EBL 1 and 2 caption also
displays the current EBL reciprocal bearing
in brackets.
2. Left click on the EBL1 or EBL2 caption button. The EBL button is
highlighted bold and the last bearing value entered is displayed.
3. On the display the EBL is shown as a dashed
line at a bearing angle dictated by the EBL
readout. The range value of its associated VRM
is also shown, with a line drawn at the point
where the VRM intersects the EBL (see below),
although the VRM is not shown.
4. To turn the ERBL off, left click on the EBL button.
The EBL lettering and button return to normal, the bearing value
and the VRM range value are replaced by the
Off caption, and the
ERBL is removed from the chart display.