20
Nobeltec InSight Radar (IR2)
Operations Manual
STC Curve
The STC Curve function allows you to control the Sea Clutter profile of the radar.
By default, the STC Curve profile is set to a value of 4. For most applications, there
should be no need to change this setting. However, you may want to adjust this
value to get a better application of Sea Clutter if the radar is either mounted very
high on the vessel, or extremely low. This setting affects all modes of Sea Clutter
application (auto, harbor and manual).
Follow these steps to adjust the STC Curve profile:
1) Set the radar range to 12nm.
2) Set the gain and sea clutter to manual settings.
3) Setting the STC curve profile to a lower number causes the application of sea
clutter to be focused around the vessel. Setting it to a higher number causes
STC to be applied through out more of the image. Adjust the STC curve profile
value up or down and observe its impact on the radar image.
4) Select the desired application of the STC curve profile and click OK.
NOTE: If the STC curve profile is not set correctly, adjusting the sea clutter (manual
or automatic) may not have the desired impact. If you notice that increasing the sea
clutter control has no impact on the image, your STC curve profile is too low. On the
other hand if you notice that echoes disappear too quickly when applying sea clutter,
the STC profile may be too high.
Setting up IR2
