Question: The frequency range of wireless LAN is

Answer:

The frequency range of wireless LAN (Local Area Network) can vary depending on the specific Wi-Fi standard being used. The most commonly used frequency ranges for Wi-Fi networks are:

1. 2.4 GHz: This is the frequency range used by IEEE 802.11b, IEEE 802.11g, and IEEE 802.11n Wi-Fi standards. It spans from 2.400 GHz to 2.4835 GHz and is divided into multiple channels. The 2.4 GHz frequency range is widely adopted and supported by most Wi-Fi devices.

2. 5 GHz: This is the frequency range used by IEEE 802.11a, IEEE 802.11n, IEEE 802.11ac, and IEEE 802.11ax (Wi-Fi 6) Wi-Fi standards. It operates in the frequency range of 5.150 GHz to 5.925 GHz and offers more available channels compared to the 2.4 GHz range. The 5 GHz range provides higher data rates and is less susceptible to interference.

It's important to note that different countries and regions have regulations regarding the specific frequency bands and channel allocations for Wi-Fi usage. The available frequency bands may also vary depending on local regulatory authorities.

There is also a 900 MHz band used for wireless LAN in some cases. However, it is less commonly used for Wi-Fi networks compared to the 2.4 GHz and 5 GHz bands.

In the 900 MHz band, there are different frequency ranges allocated for wireless communication depending on the region or country. For example:

• In North America, the Industrial, Scientific, and Medical (ISM) band includes the frequency range of 902 MHz to 928 MHz. It is used for various purposes, including some wireless LAN applications.
• In Europe, the 868 MHz band is allocated for short-range devices and can be used for specific wireless LAN applications.

It's worth noting that the 900 MHz band has some limitations compared to the 2.4 GHz and 5 GHz bands. The available spectrum is narrower, which can result in lower data rates and potentially more susceptibility to interference. As a result, the use of the 900 MHz band for wireless LAN is not as widespread as the 2.4 GHz and 5 GHz bands.