According to the 802.11 standard, how wide are 2.4 GHz band OFDM channels?
A . 5 MHz
B. 22 MHz
C. 20 MHz
D. 3 MHz
Answer: C
Explanation:
Reference: https://www.cnrood.com/en/media/solutions/Wi-Fi_Overview_of_the_802.11_Physical_Layer.pdf
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