Advanced Measurements - Icom MR-1200RII Instruction Manual

■ Advanced measurements

D Measuring the distance and direction between two targets
3/4
MTUNE
NM CURS\ 3171˚M
km/h H UP
SOG
EBL1
VRM1
GPS
GYRO
EBL1 3211˚M VRM1
EBL2 0890˚T VRM2
WPT
POSN
D Measuring the relative speed and course of a target
3/4
NM CURS\ 3171˚M
KT H UP
SOG
EBL1
VRM1
EBL1 3211˚T VRM1
EBL2 1714˚T VRM2
WPT
POSN
• Measuring the distance and course from a waypoint
q Display a waypoint. (See page 13)
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 15.
TVECT 3M
1141NM
HDG
IR
ES
EBL2
VRM2
ALM
0852NM
0814NM
TVECT 6M
1141NM
HDG
IR
ES
VRM2
EBL2
0401NM
0184NM
DISTANCE AND DIRECTION MEASUREMENTS
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] or [u] to move the cursor onto
the desired target.
w Push [EBL1 (VRM1)]/[
EBL1 and VRM1.
• Push [t] or [u] to rotate the electronic bearing line.
• Push [p] or [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] or [u] to move the cursor onto
the other target.
• Push [t] or [u] to rotate the electronic bearing line.
• Push [p] or [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.
4
] to display the
] to display the
] (p. 12) to turn ON the
16