Statements (28)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:radar | 
| gptkbp:cannotMeasure | Altitude | 
| gptkbp:compatibleWith | Aircraft transponder | 
| gptkbp:component | Airport surveillance system | 
| gptkbp:contrastsWith | gptkb:Secondary_Surveillance_Radar | 
| gptkbp:detects | Weather phenomena Aircraft position | 
| gptkbp:developedBy | 20th century | 
| gptkbp:frequency | gptkb:C_band gptkb:L_band S band | 
| gptkbp:measures | gptkb:Azimuth Range | 
| gptkbp:operates | Transmitting radio waves | 
| gptkbp:provides | Bearing information Distance information Non-cooperative surveillance | 
| gptkbp:rangeLimit | Typically up to 60 nautical miles | 
| gptkbp:recipient | Reflected signals | 
| gptkbp:requires | Line of sight | 
| gptkbp:subject | gptkb:Clutter Interference | 
| gptkbp:usedBy | Military Civil aviation authorities | 
| gptkbp:usedIn | gptkb:Air_traffic_control | 
| gptkbp:bfsParent | gptkb:PSR | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | Primary Surveillance Radar |