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Why is it not recommended to use only 39 channels for bluetooth gateway broadcast?

August 12, 2021

Latest company news about Why is it not recommended to use only 39 channels for bluetooth gateway broadcast?

Bluetooth has 40 channels, but there are only 37, 38 and 39 broadcast channels, which correspond to 2402MHz, 2426MHz and 2480MHz center frequencies. We know that the more channels bluetooth broadcasts, the more time it takes to transmit data, and the higher the power consumption, so why not use only 39 channels for bluetooth gateway broadcast? No, this is because the bluetooth broadcast channels are at least 24MHz apart from each other between 37 and 38 and 39. Each broadcast, broadcast data will be sent in three channels once, this can effectively avoid interference, even if one channel interference, the other channels can also work well, and three channels at the same time interference is rare.

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