Icom MR-1000RTM Fish Finder User Manual


 
Advanced measurements
Using both Electronic Bearing Lines (EBL) and both
Variable Range Markers (VRM), the following ad-
vanced measurements can be made:
DMeasuring 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.
DMeasuring 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
6M
1141NMNM
CURS\
SOG
KT
H UP
3171
˚M
HDG
IR
ES
EBL1 3211
˚T
EBL2 1714
˚T
WPT
VRM1 0401NM
VRM2 0184NM
POSN
VRM2
EBL2
EBL1
VRM1
3/4
MTUNE
TVECT
3M
1141NMNM
CURS\
SOG
km/h
H UP
3171
˚M
HDG
IR
ES
EBL1 3211
˚M
EBL2 0890
˚T
WPT
VRM1 0852NM
VRM20814NM
POSN
ALM
GYRO
GPS
EBL2
EBL1
VRM2
VRM1
5
DISTANCE AND DIRECTION MEASUREMENTS
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