1. OPERATION
1-17
Target
6.0 KM
2.0
Range
Range ring
interval
VRM1
VRM2
VRM
4.5 KM
3.0 KM
VRM1 range
VRM2 range
4.5 KM
Range to
cursor
+
Cursor
Figure 1-15 How to measure range by VRM, cursor
To erase a VRM,
press and hold down corresponding VRM key until the VRM
disappears.
1.17.4
Unit of range measurement for VRM and cursor
By NM/KM key
The VRM and cursor ranges can be displayed in nautical miles or kilometers. Use
the [NM/KM] key to choose unit desired.
Through menu
Select “12. VRM Unit” and desired unit of measurement among nm, km and sm.
1.18
Measuring the Bearing
There are three ways to measure the bearing to a target: by the bearing scale
(rough estimate), by the cursor, and by the EBL (Electronic Bearing Line).
1.18.1
Measuring bearing by the cursor
Rotate the trackball to set the cursor intersection on the center of the target. The
bearing to the cursor intersection appears at the bottom of the display.
1.18.2
Measuring bearing by the EBL
Use the EBLs for accurate measurement of the range to a target. There are two
EBLs, EBL1 and EBL2, which appear as dashed rings to as to distinguish them
from the range rings. The two EBLs can be distinguished from each other by
different lengths of dashes.
1. Press the [EBL1] or [EBL2] key, whichever EBL you want to use. The readout
of the active marker is circumscribed.
2. Operate the trackball within five seconds of completing step 1 to bisect the
target with the EBL.
3. Check the EBL readout to find the bearing to the target.
Summary of Contents for FR-7041R-MARK-2
Page 1: ...MARINE RADAR FR 7041R MARK 2 ...
Page 66: ......
