Both the 2.4 GHz band and the 5GHZ band are open bands, however….

Use of the 5 GHz frequency for wireless networks is not universally “free” in terms of licensing costs or regulatory restrictions; It depends significantly on local and international regulations.

Below we explain how this works in different contexts and what considerations you should take into account:

1. Local Regulations

In many countries, the 5 GHz bands used for Wi-Fi are classified as “license-free” spectrum, meaning that anyone can use them without needing to obtain a specific license, as long as they comply with certain regulations and technical limitations. by regulatory bodies. For example, in the United States, the FCC regulates the use of these bands to limit interference and ensure fair use among all users.

2. Technical Limitations

Although purchasing a license is not required to use the 5 GHz band, there are technical restrictions that must be followed. These include limits on output power and the utilization of certain channels within the band. For example, some 5 GHz channels are subject to restrictions such as DFS (Dynamic Frequency Selection) and TPC (Transmit Power Control) to avoid interference with radar and satellite services.

3. Interference Considerations

The 5 GHz band generally has less interference than the 2.4 GHz band, which is widely used by a variety of wireless devices. However, this does not mean that it is completely free of interference, especially in densely populated areas or with many wireless devices.

4. Associated costs

While using the 5 GHz band itself may not have a direct cost in terms of licensing, there may be costs associated with purchasing compatible equipment and setting up a network that complies with local regulations. Additionally, maintaining a network that uses this band efficiently can also involve investments in technology and network management.

5. International Use

Regulations can vary significantly from country to country. Some countries may have stricter restrictions or even require licenses to use certain parts of the 5 GHz band. It is crucial to check local regulations before deploying or expanding networks that use this frequency.

In summary, while in many places the use of the 5 GHz band for Wi-Fi does not require a paid license, it is always subject to compliance with technical and legal regulations designed to manage the spectrum and minimize interference between users and services. .