> For the complete documentation index, see [llms.txt](https://nxp.gitbook.io/d2x/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nxp.gitbook.io/d2x/miscellaneous/frequency-usage.md). # Frequency usage The ITS-G5A frequency range 5 875 - 5 905 GHz the uBlox Vera module is designed for is used for ITS road safety related applications.\ There is a discussion ongoing within EU, ETSI, CEPT and others on the future frequency use for drones but no decision yet.\ Therefore current setting for the D2X demoboards is ISM band, **channel 165** - 5 825 MHz. We **propose to use in future** one of the 7 channels of the ITS-G5A frequency range 5 875 - 5 905 GHz as well to allow communication between drones and ground based traffic like cars, trains and ships. The rationale behind is that drones are usually flying in a very low airspace and interfering more to ground based traffic than manned aviation. ![](/files/-L9GM2R6yCdQZ05e7nWV) ## Current frequency usage for D2X demoboard Default setting for the D2X demoboards is ISM band, **channel 165** - 5 825 MHz. The used channel can be set via the [D2X software configuration](/d2x/software/d2x-application/d2x-configuration.md) file.\ The uBlox Vera module supports a frequency range down to \~5 500MHz. Another option might be to use one of UNII-2-Ext channels excluding the range for weather radar.\ Channel 100 - 116 or 132 - 144. > **Frequency usage needs to be aligned with and approved by local telecommunication authorities!**\ > **ISM band is ok to use without approval if the device is according CE rules and ISM band restrictions on output power and other mentioned regulations are fulfilled. This might be different by country! Check with your local authorities!** ![](/files/-L9GM2S3a1xy7UPyEoDp) Source: --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://nxp.gitbook.io/d2x/miscellaneous/frequency-usage.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.