ICOM MR-1000R User Manual

■ Advanced measurements

Using both Electronic Bearing Lines (EBL) and both
Variable Range Markers (VRM), the following ad-
vanced measurements can be made:

D Measuring the distance and direction between 2 targets

q Push [Ù Ú Ω ≈] to move the cursor on the desired

target.

w Push [EBL1 (VRM1)]/[

] to display the

EBL1 and VRM1.

• Push [Ω ≈] to rotate the electronic bearing line.
• Push [Ù Ú] to increase or decrease the variable range

marker ring size.

e Push [EBL2 (VRM2)]/[

] to display the

EBL2 and VRM2.

• The intersection of the EBL1 and VRM1 becomes the

center of the EBL2 and VRM2.

r Push [Ù Ú Ω ≈] to move the cursor on the other

target.

• Push [Ω ≈] to rotate the electronic bearing line.
• Push [Ù Ú] to increase or decrease the variable range

marker ring size.

t The VRM2 readout shows the distance between the

two targets. The EBL2 readout shows the direction
from one target to the other.

D Measuring the relative speed and course of a target

q Push [TRAILS]/[

] (p. 12) ON; then wait until

the trail time count up reaches to the TRAIL TIME.

w Set VRM1 and EBL1 to a previously plotted target

as described above.

e Set VRM2 and EBL2 to the current plotted position

of the same target as described as above.

r The VRM2 readout is a measure of target move-

ment which can be converted into relative target
speed.

• For example, when a 6 min. trail time is selected, multi-

plying the distance by ten gives the relative average
speed of the target.

• If your ship is stationary during the plotting time, the

converted speed and direction become absolute.

• The converted speed unit is knots or kilometers/hour

when the selected unit in the FUNCTION menu is nauti-
cal miles (NM) or kilometers (KM), respectively.

t The EBL2 readout shows the course direction of the

target.

• Measuring the distance and course from a waypoint
q Display a waypoint. (see p. 13)
w Set VRM1 and EBL1 to the displayed waypoint tar-

gets as described above.

e Set VRM2 and EBL2 to a target (e.g. the next way-

point) as described above.

r The VRM2 readout shows the distance to the target

from the waypoint.

• The distance unit can be selected as nautical miles (NM)

or kilometers (KM) in the FUNCTION menu.

t The EBL2 readout shows the direction to the target

from the waypoint.

3/4

TVECT

1141NM

CURS\

SOG

H UP

3171˚M

HDG

EBL1 3211˚T
EBL2 1714˚T
WPT

VRM1 0401NM
VRM2 0184NM

POSN

VRM2

EBL2

EBL1

VRM1

3/4

MTUNE

TVECT

1141NM

CURS\

SOG

km/h

H UP

3171˚M

HDG

EBL1 3211˚M
EBL2 0890˚T
WPT

VRM1 0852NM
VRM20814NM

POSN

ALM

GYRO

GPS

EBL2

EBL1

VRM2

VRM1

DISTANCE AND DIRECTION MEASUREMENTS

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