Furuno FMD3100, Руководство оператора

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2. OPERATIONAL OVERVIEW
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2.8 How to Use the VRM and EBL
The VRM measures the range to an object and the EBL measures the bearing to an
object. There are two each of VRMs and EBLs. The lengths of the dashes on the EBL2
and VRM2 are longer than those of the EBL1 and VRM1 to distinguish them. The color
of the VRMs and EBLs is orange.
2.8.1 How to hide/show an EBL, VRM
Click the arrow on an EBL or VRM box to hide the respective marker. To redisplay the
marker, click the minimized box.
2.8.2 How to measure the range and bearing
Range : Put the cursor on the VRM then drag the cursor until the VRM is on the inner
edge of the object.
Bearing : Put the cursor on the EBL then drag the cursor until the EBL bisects the ob-
ject.
2.8.3 How to select bearing reference
The EBL bearing reference can be true or relative. Click the EBL reference indication
to display T (True) or R (Relative).
EBL1
EBL2
VRM2
VRM1
240.8°
EBL reference
EBL bearing
EBL no.
EBL On/Off
VRM range
VRM no.
VRM On/Off
T
T T