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4
14
DISTANCE AND DIRECTION MEASUREMENTS
■
Distance measurement
Two measurement procedures can be used with this
radar. Use them separately or jointly is possible.
The distance unit, nautical miles (NM) or kilometers
(KM) is selected in the FUNCTION menu (p. 5).
D
Using the fixed rings
1
(0.25)
T.VECT
0.900NM
NM
CURS
SOG 0.0KT
H UP
014.6˚T
HDG
IR
ES
E B L 1
E B L 2
WPT
V R M 1
V R M 2
CURS 3 4 ˚ 3 7 . 7 2 N 1 3 5 ˚ 3 4 .4 2 E
Fixed ring
Ring range readout
q
Push [MENU]/[
] one or more times to select the
FUNCTION menu.
w
Push [
q
] one or more times to select “RING.”
e
Push [
u
] to turn ON the RING function and display
the fixed rings.
• The interval range appears on the right of the screen
range readout.
• The ring range is fixed depending on the screen range.
(See below.)
r
Push [MENU]/[
] one or more times to exit the
menu.
t
To clear the fixed rings, push [
t
] to turn OFF the
function, as described in step
e
above.
Range (nm)
Ring (nm)
1 1.5 2
3
4
6
8 12 16 24 32 36 48*
1
⁄
8
1
⁄
4
1
⁄
2
3
⁄
4
2
5 5
3
4 6
4
6
4
6
4 6
4
6
4 6
6
1
1
2 2
4
4
8
8
6
64
†
72
†
4
6
12
16
1
⁄
20 1
⁄
20 1
⁄
10
1
⁄
4
1
⁄
4
1
⁄
4
1
⁄
2
1
⁄
2
NOTE:
When the screen is shifted, the number of rings may differ.
*Available for the MR-1200TII/TIII.
†
Available for the MR-1200TIII only.
D
Using the variable range marker
q
Push [EBL1 (VRM1)]/[
] to display VRM1
and EBL1; then push [
p
] or [
q
] to set the marker.
• The range between the ship and the target is indicated
in the VRM readouts.
w
Push [EBL2 (VRM2)]/[
] to display VRM2
and EBL2; then push [
p
] or [
q
] to set the marker.
• The range between the ship and the target is indicated
in VRM readouts.
• When VRM1 and EBL1 are displayed, the center of
VRM2 appears at the intersection point of VRM1 and
EBL1.
• The VRM2 disappears when [EBL1 (VRM1)] is pushed.
e
Push [EBL1 (VRM1)]/[
] to exit the
menu display.
TYPE
RING
VRM1
VRM2
DESCRIPTION
Displays fixed rings.
Suitable for rough estimations from your
own ship to any target.
Displays a variable range marker and
activated by [
p
] or [
q
] for the range
marker selector.
Suitable for accurate measurements
from your own ship to a target.
Normally functions the same as VRM1.
When the VRM1 and EBL1 selects a
target, the center of VRM2 appears at
the intersection point.
Suitable for accurate measurements
from target to target.