2. Radar Operation
2-17
2.11.2 Measuring range by the variable range marker (VRM)
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 dashes.
Measuring range with VRMs
From the control unit w/keyboard
1. Push
the
VRM ON
key to display either of the VRMs. Successively pushing the
VRM ON
key toggles the
active VRM between No. 1 and No. 2. The currently active marker is enclosed with >.....<.
2. Operate the VRM rotary control to align the active variable range marker with the inner edge of the target of
interest and read its distance at the lower-right corner of the screen. Each VRM remains at the same
geographical distance when you operate the
RANGE
key or the RANGE box. This means that the apparent
radius of the VRM ring changes in proportion to the selected range scale.
3. Push
the
VRM OFF
key to erase each VRM.
By trackball
1. Use the trackball to place the arrow in the VRM1 or VRM2 box, whichever VRM you want to use.
VRM boxes
2. The guidance area reads "VRM on/." Push the left button to turn on the VRM. The guidance area now reads "/L
= DELETE /."
3. Put the cursor on the VRM1 or VRM2 box, and spin the scrollwheel to align the marker with the inner edge of
the target. Each VRM remains at the same geographical distance when you operate the
RANGE
key. This
means that the apparent radius of the VRM ring changes in proportion to the selected range scale.
4. To erase a VRM, select the appropriate VRM box then push the left button until the VRM disappears from the
screen.
Showing the TTG-to-VRM indication
You can show the TTG to VRM location(s) as follows:
1. Open the main menu followed by the Initial Settings menu.
2. Put the cursor on the triangle in the menu to show the Operation menu.
3. Select TTG with VRM.
4. Spin the scrollwheel to select one of the following:
OFF: NO VRM TTG display
VRM1: Show TTG data on VRM1 indication
VRM2: Show TTG data on VRM2 indication
VRM1+VRM2: Show TTG data on both VRM1 and VRM2 indications.
5. Press the MENU key several times to close the menu.
VRM1
>3.682NM<
00:00
TTG-to-VRM
indication
Содержание FCR-2107 series
Страница 42: ...1 Operational Overview 1 20 This page intentionally left blank...
Страница 73: ...2 Radar Operation 2 31 ROUGH SEA SHIP HARBOR COAST Picture setup options and default settings con t...
Страница 154: ...5 AIS Operation 5 28 This page intentionally left blank...
Страница 253: ...7 Vector Chart Material 7 81 More information is available in text More information is available as a picture...
Страница 255: ...7 Vector Chart Material 7 83 Recommended track defined by two beacons...
Страница 256: ...7 Vector Chart Material 7 84 Recommended track defined by a building and a beacon...
Страница 257: ...7 Vector Chart Material 7 85 Measurement mile tails tails...
Страница 279: ...8 Manual Updates 8 19 12 10 11 9 13 7 8 Set positions with cursor and push left mouse button Click Accept button...
Страница 298: ...9 Chart Alerts 9 14 This page intentionally left blank...
Страница 322: ...10 Route Planning 10 24 This page intentionally left blank...
Страница 368: ...14 Backup Operations 14 6 This page intentionally left blank...
Страница 404: ...16 Recording Functions 16 16 This page intentionally left blank...
Страница 406: ...17 NAVTEX Messages 17 2 This page intentionally left blank...
Страница 416: ...19 Parameters Setup 19 8 This page intentionally left blank...
Страница 456: ...Appendix 2 IHO ECDIS Chart 1 AP 4 Information about the chart display 1 Information about the chart display 2...
Страница 457: ...Appendix 2 IHO ECDIS Chart 1 AP 5 Nature and Man made features Port features...
Страница 458: ...Appendix 2 IHO ECDIS Chart 1 AP 6 Depths Currents etc Seabed Obstructions Pipelines etc...
Страница 459: ...Appendix 2 IHO ECDIS Chart 1 AP 7 Traffic routes Special areas...
Страница 460: ...Appendix 2 IHO ECDIS Chart 1 AP 8 Aids and Services Buoys and Beacons...
Страница 461: ...Appendix 2 IHO ECDIS Chart 1 AP 9 Topmarks Color test diagram...
Страница 462: ...Appendix 2 IHO ECDIS Chart 1 AP 10 Mariners navigational symbols...
Страница 464: ...Appendix 3 Interpreting S57 Charts AP 12 Plain or symbolized boundaries Limited or full light sectors...
Страница 467: ...Appendix 3 Interpreting S57 Charts AP 15 Land features Water and seabed features Traffic routes...
Страница 468: ...Appendix 3 Interpreting S57 Charts AP 16 Cautionary areas Information areas Buoys and beacons Lights...
Страница 469: ...Appendix 3 Interpreting S57 Charts AP 17 Fog signals Radars Services...
Страница 472: ...Appendix 3 Interpreting S57 Charts AP 20 Low accuracy Services and small craft facilities Special areas...
Страница 474: ...Appendix 3 Interpreting S57 Charts AP 22 Light descriptions Nature of seabed Geographic names etc...
Страница 476: ...Appendix 3 Interpreting S57 Charts AP 24 This page intentionally left blank...
Страница 511: ...Appendix 5 Digital Interface AP 59 NRX NAVTEX received data...
Страница 544: ...Appendix 6 Parts List and Parts Location AP 92 This page intentionally left blank...
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Страница 556: ......