I Advanced Measurements - Icom MR-1000TIII Instruction Manual

5
DISTANCE AND DIRECTION MEASUREMENTS

I Advanced measurements

D Measuring the distance and direction between 2 targets
3/4
NM CURS\
SOG
EBL1
VRM1
GPS
GYRO
EBL1 3211ßM
EBL2 0890ßT
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 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.
16
3M
MTUNE TVECT
3171ßM
1141NM
km/h H UP HDG
IR
ES
EBL2
VRM2
ALM
VRM1 0852NM
VRM20814NM
TVECT 6M
3171ßM 1141NM
KT H UP HDG
IR
ES
VRM2
EBL2
3211ßT VRM1 0401NM
1714ßT VRM2 0184NM
Using both Electronic Bearing Lines (EBL) and both
Variable Range Markers (VRM), the following ad-
vanced measurements can be made:
q Push [
to move the cursor on the desired
target.
w Push [EBL1 (VRM1)]/[
EBL1 and VRM1.
• Push [ ] to rotate the electronic bearing line.
• Push [ ] 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 [
to move the cursor on the other
target.
• Push [ ] to rotate the electronic bearing line.
• Push [ ] 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]/[
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.
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. 12) ON; then wait until