VisionMaster Ship’s Manual Chapter 1
Technical Specification SENC Data
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7.12.2 SENC Data
The SENC feature ensures adjustments made to the brightness and contrast
settings on the monitor will enable SENC data such as coastlines, safety
contour and other objects to be adequately displayed.
7.13 Synthetics Control
The Synthetics control suppresses all synthetics other than the radar video.
7.13.1 Synthetics Colours
• Readout Data is invalid and unusable : Red
• Readout Data is degraded : Amber
• Readout Data is valid : Green
• Own Ship Invalid Synthetics : Red
7.14 EBLs, VRMs & ERBLs
7.14.1 Variable Range Marker (VRM)
Two independent VRMs are available. Each VRM is a ring of long dashes,
the first and second VRMs having different mark/space ratio of line dashes.
The default range values on power up for the two VRMs are 2.5 NM and 4.5
NM. The default position for the VRM is centred on the CCRP.
VRMs can be offset or dropped to a LAT/LON referenced position. If the VRM
is offset from the CCRP, the centre of the VRM is indicated by a dot. If the
VRM is activated and the range scale is changed the VRM maintains its
range.
7.14.2 Electronic Bearing Line (EBL)
There are two EBLs, variable from 0° to 359.9° in 0.1° increments. EBLs can
extend up to 500 NM from their origin. Each EBL is a line of dashes, the first
and second EBLs having different mark/space ratio of dashes.
When an EBL is turned on the value of its associated VRM is also shown.
The origin of an EBL can be offset or dropped to a LAT/LON referenced
position. If the EBL is offset from the CCRP, its origin is indicated by a dot.
7.14.3 Electronic Range and Bearing Line (ERBL)
When a VRM is turned off, the VRM function is merged with the EBL to form
an ERBL. There is a small cross on the ERBL where the VRM intersects to
indicate the range setting of the VRM.
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