Furuno 1944C-BB Measuring range by VRM, Various VRM operations, How to measure range with the VRM

2. RADAR OPERATION

2.10.3Measuring range by VRM

1.Press the EBL/VRM key to display the EBL/VRM soft keys.

2.Press the B: VRM1 ON (dotted ring VRM) or E: VRM2 ON (dashed ring VRM) soft key to select the desired VRM. The selected VRM’s indication, at the bottom of the screen, is highlighted.

3.Rotate the ENTER knob then place the VRM on the inside edge of a radar target. Read the VRM indication to find range to the target.

12/LP 3nm

H-UP

VRM2 (Dashed line)

VRM1 (Dotted line)

	EBL1	---.-°R	EBL2	---.-°R
VRM1 range			VRM2
	VRM13.123nm			9.343nm

319.9°M EBL

VRM

A EBL1

ON

B VRM1

ON

C OFFSET

D EBL2

ON

E VRM2

ON

+ 359.9 ˚R 11.70nm

Active VRM is highlighted.

VRM2 range

How to measure range with the VRM

4. You may hide the EBL/VRM soft keys by pressing the EBL/VRM key.

2.10.4 Various VRM operations

Erasing a VRM, VRM indication: Press appropriate VRM soft key (B or E key), then press the CLEAR key. The VRM is erased and its indication becomes blank.

Erasing EBL/VRM data boxes: Press the EBL or VRM soft key (B or E key) associated with the EBL/VRM data box you wish to erase. Press the CLEAR key once or twice to erase the data box.

Hiding EBL/VRM data boxes: Press the E: ZOOM & D. BOX and D: D. BOX ON/OFF soft keys to show or hide the EBL/VRM data boxes.

Moving EBL/VRM data boxes: When an EBL/VRM data box is obscuring a target you want to see, you can move it to another location as shown below. This cannot be done when the EBL/VRM soft keys are shown.

1.Press the EBL/VRM key to turn off the EBL/VRM soft keys.

2.Using the Trackball, place the cursor inside the data box you wish to move. As the cursor enters the box it changes to a “hand.” Push the ENTER knob, and the hand changes to a fist, meaning the box is correctly selected.

3.Use the Trackball to move the data box to the location desired, then push the ENTER knob.

2-9