https://devzone.nordicsemi.com/f/nordic-q-a/23997/energy-detection-in-ble-advertisement-channelHi I have a project to model the RSSI based indoor location using Bluetooth beacons. However, in order to do the basic distance and RSSI relation, I want to sense the channel 37,38,39 before sending any packets to have an index of energy detectionen-USTelligent Community 13Fri, 04 Aug 2017 08:50:47 GMThttps://devzone.nordicsemi.com/thread/94472?ContentTypeID=1Fri, 04 Aug 2017 08:50:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c42de300-f7f1-4f72-beaa-4f014b831cbbovrebekk<p>Hi Ali</p> <p>If you configure the radio to the channel you want to sense on, and enable it in RX mode, you can trigger the RSSI freely and sample the RSSI level of the receiver even if no valid address is detected.</p> <p>If you want to sense on multiple channels you have to disable the radio, change the frequency, and re-enable it, before sensing on the next channel.</p> <p>Please be aware that this method might not be quick enough to pick up small bursts of energy on a particular channel. BLE systems in particular send very short packets that are hard to isolate.</p> <p>Best regards<br /> Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/94471?ContentTypeID=1Wed, 02 Aug 2017 02:28:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:75e8d022-a618-43c0-b845-9cc9edc0f3eaRoger Clark<p>What difference does background RSSI make to the RSSI of the beacons you are receiving</p> <p>RF transmissions are not additive.</p><div style="clear:both;"></div>