Furuno FCR-2107 series, Operator'S Manual

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1. Operational Overview
1-13
1.9.1 EBL
With control unit RCU-020
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. Push
the
EBL ON key to display either of the EBLs. Successive pushes of the EBL ON key toggle the active EBL
between No. 1 and No. 2. To adjust an EBL, use the EBL rotary encoder, which is 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, then push and hold down the left 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 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.
1.9.2 VRM
With control unit RCU-020
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. Push the
VRM ON key to display either of the VRMs. Successive pushes of the VRM ON key toggle the active VRM
between No. 1 and No. 2. To adjust a VRM, use the VRM rotary encoder, which is 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, then push and hold down the left 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 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.