https://devzone.nordicsemi.com/f/nordic-q-a/34866/snifferHi , Please See the Image Attached. What is 1) Access Address , I read some articles on DevZone, But not clear. 2)Board 7en-USTelligent Community 13Tue, 29 May 2018 09:43:38 GMThttps://devzone.nordicsemi.com/thread/133781?ContentTypeID=1Tue, 29 May 2018 09:43:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:738f4eb9-eb06-4ef8-9848-9258283aad21priya123<p>Thanks Kenneth</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/133779?ContentTypeID=1Tue, 29 May 2018 09:37:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4c91dae4-1482-4034-a205-e2a4119cbff3Kenneth<p>1) The access address is used by the Bluetooth radio to transmit and receive BLE packets, in this case an advertisement packet. From the BLE Core spec v4.2 you can find:</p> <p>&quot;The Access Address for all advertising channel packets shall be&nbsp;10001110100010011011111011010110b (0x8E89BED6).&quot;</p> <p>2) &quot;Board 7&quot; is just some generic meta data for the sniffer PC tool, in this case used to identify the USB dongle used to sniff BLE communication.</p> <p>&nbsp;</p><div style="clear:both;"></div>