JRC JMA-932B-SA - Using Variable Range Marker (VRM1; VRM2)

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4.1.4 Using Variable Range Marker (VRM1 / VRM2)
Variable range markers (VRM) are indispensable to the measurement of ranges. Operators must be
familiar with the operation of VRM beforehand.
The system is equipped with two VRM. The VRM can be operated separately from each other.
An intersection marker is displayed at the intersection point of the VRM and EBL of the same number.
When the starting point of an EBL is offset, the center of the VRM is defined as the offset EBL starting
point.
Intersection markers shown on VRM:
: EBL1, VRM1
: EBL2, VRM2
VRM Range Display
The range value of the current VRM1 or VRM2 on the PPI display is shown in the
VRM1/2 range located at the upper right of the radar display. The currently operable
VRM1 or VRM2 is highlighted in the VRM1 VRM2 button located at the upper
right of the display.