Understanding the MiG-21 radar orientation. - Page 2 - ED Forums
 


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Old 03-15-2018, 06:45 PM   #11
Frederf
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No, nose cone is not blocking. When in tracking mode the antenna can point downward to approximately -30° in elevation. Even in scanning mode with nose pointed above horizon (e.g. +20° pitch) the antenna can still scan normally it's pattern below horizon.
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Old 03-18-2018, 11:29 AM   #12
foxbat155
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Yep, Frederf have right, nose cone not limitate radar antenna movement, because nose cone is fixed to radar frame, and whole device is moving forward and back during flight.
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Old 03-20-2018, 12:09 PM   #13
CrazyGman
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I notice when I'm flying on the deck that the radar doesn't seem to pick up contacts at all even with it orientated upwards. Is there an altitude under which the radar won't work at all?
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Old 03-20-2018, 06:29 PM   #14
Frederf
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Yes, the detection range is dependent on proximity to ground even if object is in radar view geometrically. The filter mode also effects detection range when radar is close to earth (lower height filter improves range).
https://forums.eagle.ru/showthread.php?t=195234
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