How does BLE devices update channel map?https://devzone.nordicsemi.com/f/nordic-q-a/53247/how-does-ble-devices-update-channel-mapDear All I am right now working on BLE development with nRF52840DK. I checked a number of materials, including official specification from Bluetooth SIG, but none of them include information about how frequently BLE devices update their channel mapen-USTelligent Community 13Tue, 15 Oct 2019 11:04:10 GMTRE: How does BLE devices update channel map?https://devzone.nordicsemi.com/thread/215034?ContentTypeID=1Tue, 15 Oct 2019 11:04:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6126692d-b962-4586-9bd4-de6c4c7a28bdshibshab<p>1. It depends completely on the device. As far as I know, the specs does not dictate when it should be done, only how it can be done.<br />2. No, as stated above, it needs to be triggered explicitly by the device, and is not imposed by the spec.<br />3. There are several metrics that can be used. Some phones change channel map automatically when Wi-Fi is enabled. Other implementations can listen on certain channels to see if they are &quot;congested&quot; or not.&nbsp;</p><div style="clear:both;"></div>