Originally posted by EUFighter
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Our ships had both X-band and S-band radars. X-band is sensitive and picks up objects as small as rain droplets. This gives many scatter echoes in rain and white out on the screen in rough weather out to 3nm on the 12nm range. we relied more on S-band in bad weather for near water targets. X-band was used for heli-control but with a spring loaded switch to allow the controller to view the helicopter mounted transponder only as a kind of secondary radar. It was important to have raw sweeps to ensure the helo was actually flying as secondary only would pick up the transponder in the sea. In ships the X-Band radar is put at a height to minimise clutter, while the S-Band can be put at a greater height.
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