JRC JMA-5208 - Display Variable Range Markers [VRM1;VRM2]

3.5 GENERAL OPERATIONS
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3.5.4 Display Variable Range Markers [VRM1/VRM2]
This function is to display and select variable range markers (VRMs). Two VRMs are available: VRM1 is
represented as a broken line, and VRM2 as a dotted line. When EBL1 is displayed, VRM1 marker appears on
the EBL1. When EBL2 is displayed, VRM2 marker appears on the EBL2. If the starting point of an EBL is
offset, the center of a VRM marker is positioned at the starting point of the EBL.
VRM markers displayed on EBL1/EBL2
ۑ mark: VRM1
ە mark: VRM2
VRM2
EBL2
VRM1
EBL1
VRM1 Operation
If VRM2 is selected or VRM1 is not displayed, press [VRM1] to select VRM1 before starting operation.
(The currently selected VRM is shown in reverse video at the upper right of the radar display.)
Procedure 1 Press [VRM1] key.
VRM1 at the upper right of the radar display will be shown in reverse video, and VRM1
becomes operable.
2 Press [VRM1] key again.
The VRM1 display will disappear.
* Software button ն located at the top right corner of the radar display described in Section 2.3.3 is also
available to switch VRM1 between ON and OFF.
VRM Operations
The variable range markers are displayed centering around own ship. Turning the [VRM] control
clockwise makes the VRM larger. Turning the [VRM] control counterclockwise makes the VRM
smaller.