DSSS channel center frequencies are spaced by how many megahertz?

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Multiple Choice

DSSS channel center frequencies are spaced by how many megahertz?

Explanation:
DSSS channel center frequencies in the 2.4 GHz band are spaced by 5 MHz. Each channel uses about 22 MHz of bandwidth, so the centers are only 5 MHz apart, which means adjacent channels overlap. This overlap is why people choose non-overlapping channel sets (such as 1, 6, and 11 in the U.S.) to reduce interference. So the center-to-center spacing is 5 MHz.

DSSS channel center frequencies in the 2.4 GHz band are spaced by 5 MHz. Each channel uses about 22 MHz of bandwidth, so the centers are only 5 MHz apart, which means adjacent channels overlap. This overlap is why people choose non-overlapping channel sets (such as 1, 6, and 11 in the U.S.) to reduce interference. So the center-to-center spacing is 5 MHz.

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