Advanced Measurements - Icom MR-1000RII Instruction Manual

4
DISTANCE AND DIRECTION MEASUREMENTS

■ Advanced measurements

D Measuring the distance and direction between two targets
3/4
NM CURS\
SOG
EBL1
VRM1
GPS
GYRO
EBL1
EBL2
WPT
POSN
D Measuring the relative speed and course of a target
3/4
NM CURS\
SOG
EBL1
VRM1
EBL1
EBL2
WPT
POSN
• Measuring the distance and course from a waypoint
q Display a waypoint. (See page 12)
w Set VRM1 and EBL1 to the displayed waypoint
targets as described above.
e Set VRM2 and EBL2 to a target (e.g. the next
waypoint) as described on page 14.
15
MTUNE TVECT 3M
3171˚M 1141NM
km/h H UP HDG
IR
ES
EBL2
VRM2
ALM
3211˚M VRM1 0852NM
0890˚T VRM2 0814NM
TVECT 6M
3171˚M 1141NM
KT H UP HDG
IR
ES
VRM2
EBL2
3211˚T VRM1 0401NM
1714˚T VRM2 0184NM
Using both Electronic Bearing Lines (EBL) and both
Variable Range Markers (VRM), the following ad-
vanced measurements can be made:
q Push [p] [q] [t] [u] to move the cursor onto the
desired target.
w Push [EBL1 (VRM1)]/[
EBL1 and VRM1.
• Push [t] [u] to rotate the electronic bearing line.
• Push [p] [q] to increase or decrease the variable range
marker ring size.
e Push [EBL2 (VRM2)]/[
EBL2 and VRM2.
• The intersection of the EBL1 and VRM1 becomes the
center of the EBL2 and VRM2.
r Push [p] [q] [t] [u] to move the cursor onto the
other target.
• Push [t] [u] to rotate the electronic bearing line.
• Push [p] [q] 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.
q Push [TRAILS]/[
TRAILS function; 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 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 minute trail time is selected,
multiplying the distance by ten gives the relative aver-
age 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 nau-
tical miles (NM) or kilometers (KM), respectively.
t The EBL2 readout shows the course direction of
the target.
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.
] to display the
] to display the
] (p. 11) to turn ON the