Simrad ARGUS FMCW 3G, User Manual

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Basic operation | Argus Radar Operator Manual
PPI black background
When this feature is selected (default), the PPI background will always appear in black, no
matter which video palette is selected.
Checkbox deactivated: The PPI background
will be according to the selected palette color. Checkbox activated: The PPI background
will always appear in black.
Video level equalization
When the operator changes the range scale from e.g. 6 NM to 3 NM or less, the system makes
an equalization of these levels. The time necessary to visualize this equalization, coming from
6 NM range scale, is a few seconds. This kind of processing allows to get the maximum con-
trast of the echoes, depending of the video level.
Echo Sharpening
The echo sharpening (Video radar histogram) is deactivated as default. The function is able to
normalize relative color gradients (240) in the current radar presentation on scales lower than
3 NM. It then shows the full color gradients, increasing the discrimination of the radar image.
Select the checkbox to activate the echo sharpening at lower scales of less than 3 NM.
Echo Sharpening deactivated Echo Sharpening activated
Video processing bars with or without percentage value
This bi-stable button allows to show the video processing bars with or without the percent-
age values.
It is normally not needed or required by any rule to show these percentage values, but if the
operator prefers to have them displayed, he can easily do so by using this button; just be
aware that, in the tuning bar particularly, the value changes continuously while the antenna is
turning.