According to wireless testing firm Rohde and Schwarz, the C-band is all frequencies between 4 and 8GHz . When US wireless geeks talk about C-band, though, they’re talking about 3.7 to 4.2GHz—and specifically, in this case, the range from 3.7 to 3.98GHz.
Read moreWhat 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.
Read more