User's Manual

JMA-9172-SA Instruction Manual > 4.MEASUREMENT OF RANGE AND BEARING > 4.1 USE OF NAVIGATION TOOLS

4－3

4.1.3 Using Electronic Bearing Line (EBL1/EBL2)

Electronic bearing lines (EBL) are indispensable to the measurement of bearings.

Operators must be familiar with the operation of EBL beforehand.

The system is equipped with two EBL. The bearing and starting point of an EBL

can be operated separately from the other EBL.

An intersection marker is displayed at the intersection point of the EBL and VRM

of the same number.

EBL Bearing Display

The bearing value of the current or on the PPI display is shown in the

upper right of the display.

The currently operable or is highlighted in the upper right of the display.

Starting Point of EBL

The starting point of the currently operating EBL can be switched from the center of the

radar display to any offset position . The offset position of the EBL starting point can be

fixed on the radar display or at the latitude and longitude. (The setting of the navigator is

necessary for fixing the offset position at the latitude and longitude.)

Intersection markers shown on EBL:

○:

EBL1, VRM1

●:

EBL2, VRM2

VRM2

EBL2

VRM1

EBL1

EBL1 EBL2