Assertion: radar's advantage | /r/CapableOf | reduce loss
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Source sentences:
text: Compared to normal parabolic antenna , advantages of Cassegrain antenna include: More compact ( even though Cassegrain antenna require a secondary reflector, the overall length of the dish antenna between the two reflectors is still shorter than the length between the feed and the reflector in normal parabolic antenna ) , reduce loss (because the receiver can be mounted directly near the feed horn) , less interference from side lobe for ground-based radar (even at high elevations very little spillover toward ground – all sidelobes point at cold sky ).These main disadvantages of Cassegrain compared to the parabolic antenna are: greater beam blockage ( the total size of the secondary reflector and the feed is larger than the feed in parabolic system ), not working well with board band feed.