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Nobeltec InSight Radar (IR2)
Operations Manual
Adjusting the Gain
Use the Gain Up and Gain Down keys to adjust the sensitivity of the
radar.
A higher gain value makes the radar more sensitive to radar returns, allowing it to
display weaker targets. However, if the gain is set too high, the image might get
overly cluttered with background noise and even strong returns could be hidden or
masked. Conversely, a lower gain could cause weak echoes to be missed.
Auto Gain (4kW and Higher)
Based on the Radar Presets, the Auto Gain function is designed for hands
free operation of the radar. By setting the gain preset (as described in the
chapter titled Setting up the InSight Radar) the software preserves the
relative gain settings for every range level.
Reducing Sea Clutter (SEA)
Use the Sea Up and Sea Down keys to reduce the effect of random
echo returns from waves or rough water near the vessel. Sea Clutter is sometimes
referred to as STC (Slow Time Constant) or just SEA.
Reducing the on-screen clutter caused by the echoes of waves is accomplished by
increasing the SEA value.
Sea Clutter is primarily focused near the vessel and shows on your radar screen
as a thick cluster of radar returns. Increasing the Sea Clutter (or STC; Slow Time
Constant) can help filter out the echoes between rough seas and real targets.
Chapter 3
Working with IR2
