What is X band and S-band?

The marine radar is classified under the x-band (10 GHz) or S-band (3GHz) frequencies. The x-band, being of higher frequency is used for a sharper image and better resolution whereas the S-band is used especially when in rain or fog as well as for identification and tracking.

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What is C and L band?

L-band, or long band, is a wavelength band immediately adjacent to the Conventional band (C-band) initially used to expand the capacity of terrestrial DWDM optical networks. It is now being introduced to submarine cable operators to do the same thing—expand the total capacity of a submarine cable.

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