Shifting The Ebl; Shifting The Vrm; Adjusting The Parallel Index Lines - Furuno FEA-2107 Operator's Manual

12.2.1

Shifting the EBL

With control unit RCU-108
There are two EBLs, No. 1 and No. 2. Each EBL is a straight dashed line extending out from the own ship position
up to the edge of the screen. The long dashed line is the No. 1 EBL and the short dashed one is the No. 2 EBL. Press
the EBL ON key to display either of the EBLs. Successive presses of the EBL ON key toggle the active EBL
between No. 1 and No. 2. To adjust an EBL, use the EBL rotary encoder, above the EBL OFF and EBL ON keys.
The EBLs can be turned on or off from the Nav Marks dialog box by checking or unchecking EBL on the Set 1 or
Set 2 page.
Each EBL carries a range marker, or a short line crossing the EBL at right angles and its distance from the EBL
origin is indicated at the VRM readout whether or not the corresponding VRM is displayed. The range marker
changes its position along the EBL with the rotation of the VRM rotary encoder. The corresponding VRM must be
turned off to use a range marker.
With control unit RCU-015
You have two methods available to adjust the EBL. You can directly enter a numeric value for the EBL on the Nav.
Marks dialog box, or you can place the cursor on an EBL, and then press and hold down the left mouse button while
rotating the trackball. If you locate the cursor over the intersection of a VRM and an EBL, you can adjust them
together, using the left mouse button and trackball. (Note that this can also be done from the keyboard-equipped
control unit.) The EBLs can be turned on or off from the Nav Marks dialog box by checking or unchecking "EBL"
on the Set 1 or Set 2 page.
12.2.2

Shifting the VRM

With control unit RCU-108
There are two VRMs, No. 1 and No. 2, which appear as dashed rings so that you can discriminate them from the
fixed range rings. The two VRMs can be distinguished from each other by different lengths of their dashes. Press the
VRM ON key to display either of the VRMs. Successive presses of the VRM ON key toggle the active VRM
between No. 1 and No. 2. To adjust a VRM, use the VRM rotary encoder, above the VRM OFF and VRM ON
keys.
With control unit RCU-015
You have two methods available to adjust the VRM. You can directly enter a numeric value for the VRM on the
Nav. Marks dialog box, or you can locate cursor over the VRM, and then press and hold down the left mouse button
while rotating the trackball. If you locate the cursor over the intersection of a VRM and an EBL, you can adjust
them together, using the left mouse button and trackball. (Note that this can also be done from the
keyboard-equipped control unit.) The VRMs can be turned on or off from the Nav Marks dialog box by checking or
unchecking "VRM" on the Set 1 or Set 2 page.
12.2.3

Adjusting the parallel index lines

Parallel index lines are useful for keeping a constant distance between own ship and a coastline or a partner ship
when navigating. You may control their orientation with the No. 1 EBL and line interval with the No. 1 VRM.
12.Navigation Tools
12-3