Bluetooth Channel Frequency List & Bluetooth Frequency Range

Bluetooth operates in the 2.4 GHz ISM band and divides the spectrum into multiple channels, ensuring robust and interference-free communication. This page provides a comprehensive overview of Bluetooth frequency allocations, covering channel classifications for different Bluetooth versions, frequency hopping mechanisms, and channel utilization strategies. The bluetooth channels list is a crucial reference for understanding how Bluetooth technology allocates and utilizes the available radio frequency spectrum.

The Bluetooth frequency range is 2.400 GHz to 2.4835 GHz. This range is divided into 79 channels, each with a bandwidth of 1 MHz. In Bluetooth Low Energy (BLE), there are 40 channels with a bandwidth of 2 MHz each. The 79 channels with 1 MHz bandwidth are used across US, Europe and other part of countries. Japan, Spain and France use 23 bluetooth channels. Following table defines buletooth channel frequencies used across the world.

Bluetooth channels list

Following are the absolute frequencies for each of the 79 bluetooth channels.

Note :

For BLE, there are 40 channels spaced 2 MHz apart, ranging from 2402 MHz to 2480 MHz. BLE uses 3 advertising channels (37, 38, and 39) and 37 data channels. The advertising channels are positioned to avoid the frequencies used by Wi-Fi channels.

Conclusion

Understanding the Bluetooth channel frequency list is essential for optimizing device performance and avoiding interference in crowded frequency bands. With this detailed breakdown of channel allocations and usage, you can ensure efficient Bluetooth communication and avoid potential disruptions in wireless connectivity.

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