Simrad ARGUS FMCW 3G, User Manual

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Radar presentation and video processing | Argus Radar Operator Manual
Racons installed on buoys are normally active for 20 seconds, and then off for the next 20
seconds and so on. Racons installed on shore, where battery life is not a factor, are normally
programmed to operate 75% of the time. Racons are usually not programmed with a duty
cycle greater than 75%, in order to ensure that the response never completely masks an
important radar target.
The Racon response could be degraded by anti-rain and sea clutter control and interference
suppression. Consequently, shutting off of the above mentioned video processing should
improve the Racon visibility on the PPI. The detection range of a Racon may also be reduced if
the radar receiver is not tuned. Scanning the radar tuning control should correct that prob-
lem.
Video processing menu
The system provides 6 kinds of preset video processing, which is available by scrolling
between Harbour/Near range/Medium range/Long range/Rough Sea/Ice with left and right
mouse buttons and select the desired preset with center mouse button.
The scope of the function is to provide shortcuts to adjust the radar at the best for the 6 con-
ditions, giving the possibility to perform any desired change to better adapt the setting to the
real environmental condition.
The yellow text under the selections is a suggestion provided to better understand the task
of each setting. Each different selection will automatically change the caption of the button
placed next to the tuning bar, according to choice made. In case one of the 6 settings is se-
lected, the button will be indicated with yellow background, to indicate the setting also when
the menu has been closed.
The way to select none of the 6 settings is to select “Standard Video Proc”. In this case, the but-
ton next to the tuning bar will appear as in above example.
The following table specifies the preset settings of each selection:
Function Parameter Setting
Harbour
Gain
Sea
Rain
Interference Rejection
Scan to Scan
Power Boost Manual 70%
State 1 30%
Manual 0%
LOW
OFF
OFF
Near range
Gain
Sea
Rain
Interference Rejection
Scan to Scan
Power Boost Manual 75%
State 2 50%
Manual 0%
LOW
OFF
Pull down
Medium range
Gain
Sea
Rain
Interference Rejection
Scan to Scan
Power Boost Manual 80%
State 2 30%
Manual 0%
LOW
2
OFF