Which frequency band is NOT typically used for Wi-Fi equipment?

The frequency band of 902 - 928 MHz is primarily allocated for industrial, scientific, and medical (ISM) applications and is not typically designated for Wi-Fi equipment. Wi-Fi technologies are standardized to operate in specific frequency bands defined by the IEEE 802.11 standards.

The 2.4 GHz and 5 GHz bands are the most commonly used for Wi-Fi networks, due to their balance of range and data throughput. Additionally, the newer 6 GHz band was introduced with the Wi-Fi 6E standard, allowing for more channels and reduced interference, making it a suitable option for modern Wi-Fi networks.

Thus, while the other frequency bands specified—2.4 GHz, 5 GHz, and 6 GHz—are indeed used for Wi-Fi, the 902 - 928 MHz band does not support standard Wi-Fi technology and is therefore the correct answer.