5-17  Section 5    Basic Operation of the Radar 
 
 
 
 
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APP A 
APP B 
 
 
 
2  Select the observation scene corresponding to the current sea condition 
Refer to the following table about the definitions of observation scene. 
 
 
 
Observation 
Scene 
Definition 
Standard Standard 
Coast 
Coastal navigation 
Use this scene to monitor a relatively short range, for example, bays and coasts 
where many boats and ships are running. (Importance is attached to resolution.) 
Open-sea 
Open-sea navigation 
Use this scene to monitor a relatively long range, for example, the open-sea. 
(Importance is attached to long range gain) 
Fishnet 
Fishnet 
Use this scene to detect small targets such as fishnets of round haul netters hidden 
by sea clutter returns. (Importance is attached to sea clutter suppression, and gain to 
moving targets lowers.) 
Storm 
Storm 
Use this scene when many rain/snow clutters or sea clutter are detected in stormy 
weather. (Importance is attached to rain/snow clutter and sea clutter suppression, 
and gain slightly lowers.) 
Calm 
Calm 
Use this scene when only a few rain/snow clutter or sea clutter are detected. 
Rain 
Rain 
Use this scene when sea clutter is not strong but rain/snow clutter is strong. 
(Importance is attached to rain/snow clutter suppression, and gain slightly lowers.)