2. Radar Operation
2-18
2.12 Measuring the Bearing
Use the Electronic Bearing Lines (EBLs) to take bearings of targets. 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 circumference of the radar picture.
The fine dashed line is the No. 1 EBL and the coarse dashed one is the No. 2 EBL.
2.12.1 Measuring the bearing
From the control unit w/keyboard
1. Push
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. The currently active marker is enclosed with >.....<.
2. Operate the EBL rotary control clockwise or counterclockwise until the active EBL bisects the target of interest,
and read its bearing at the lower-left corner of the screen.
Note:
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 control.
3.
Push the
EBL OFF
key to erase each EBL.
By trackball
1. Use the trackball to place the arrow in the EBL1 or EBL2 box,
whichever EBL you want to use.
EBL boxes
2. Spin the scrollwheel to bisect the target with the EBL.
Note:
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.
3. To erase an EBL, select the appropriate EBL box then push the left
button until the EBL disappears from the screen.
2.12.2 Choosing true or relative bearing
The EBL readout is affixed by "R" (relative) if it is relative to own ship's heading, "T" (true) if it is referenced to the
north.
To select bearing reference in the head-up mode, do the following:
1. Use the trackball to select the Menu box at the right side of the screen.
2. Push the left button to display the Main menu.
3. Spin the scrollwheel to select Mark then push the scrollwheel.
4. Use the trackball to put the arrow on the setting of the EBL cursor bearing.
5. Spin the scrollwheel to select True or REL then push the scrollwheel.
6. Click the Close window button (X) to close the Mark menu.
Note:
When the gyrocompass heading changes, the EBL and its indication change as follows:
Head-up, relative: EBL indication and EBL remain unchanged.
Head-up, true: EBL indication remains the same; EBL moves.
Course-up, true: EBL indication and EBL remain unchanged.
Course-up, relative: EBL indication remains the same, EBL moves.
North-up, relative: EBL indication remains the same, EBL moves.
North-up, true: EBL indication and EBL remain unchanged.
Summary of Contents for FCR-2107 series
Page 42: ...1 Operational Overview 1 20 This page intentionally left blank...
Page 154: ...5 AIS Operation 5 28 This page intentionally left blank...
Page 255: ...7 Vector Chart Material 7 83 Recommended track defined by two beacons...
Page 256: ...7 Vector Chart Material 7 84 Recommended track defined by a building and a beacon...
Page 257: ...7 Vector Chart Material 7 85 Measurement mile tails tails...
Page 298: ...9 Chart Alerts 9 14 This page intentionally left blank...
Page 322: ...10 Route Planning 10 24 This page intentionally left blank...
Page 368: ...14 Backup Operations 14 6 This page intentionally left blank...
Page 404: ...16 Recording Functions 16 16 This page intentionally left blank...
Page 406: ...17 NAVTEX Messages 17 2 This page intentionally left blank...
Page 416: ...19 Parameters Setup 19 8 This page intentionally left blank...
Page 457: ...Appendix 2 IHO ECDIS Chart 1 AP 5 Nature and Man made features Port features...
Page 458: ...Appendix 2 IHO ECDIS Chart 1 AP 6 Depths Currents etc Seabed Obstructions Pipelines etc...
Page 459: ...Appendix 2 IHO ECDIS Chart 1 AP 7 Traffic routes Special areas...
Page 460: ...Appendix 2 IHO ECDIS Chart 1 AP 8 Aids and Services Buoys and Beacons...
Page 461: ...Appendix 2 IHO ECDIS Chart 1 AP 9 Topmarks Color test diagram...
Page 462: ...Appendix 2 IHO ECDIS Chart 1 AP 10 Mariners navigational symbols...
Page 469: ...Appendix 3 Interpreting S57 Charts AP 17 Fog signals Radars Services...
Page 476: ...Appendix 3 Interpreting S57 Charts AP 24 This page intentionally left blank...
Page 511: ...Appendix 5 Digital Interface AP 59 NRX NAVTEX received data...
Page 544: ...Appendix 6 Parts List and Parts Location AP 92 This page intentionally left blank...
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Page 556: ......