https://devzone.nordicsemi.com/f/nordic-q-a/17337/does-the-nrf-ble-sniffer-require-a-complete-advertisement-packet-to-display-its-raw-dataHi all, Is the &quot;to-be-sniffed&quot; advertisement packet allowed to have incorrect CRC, or perhaps a missing CRC? I.e. Is it possible for the sniffer to just display the raw data of preamble and access address? Thank you, Rayen-USTelligent Community 13Fri, 28 Oct 2016 03:34:16 GMThttps://devzone.nordicsemi.com/thread/66622?ContentTypeID=1Fri, 28 Oct 2016 03:34:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9fc39c43-e343-4b1d-818b-9c6b780d16a7ray<p>Thank you very much!</p> <p>The reason is because I&#39;m building a software defined radio on FPGA with BLE packets, and I&#39;m failing to capture any signal using a sniffer.</p> <p>Could you help me once more, and display the limitation of when the sniffer would no longer display the packet? I&#39;m assuming the least it&#39;d need is preamble+access address.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/66621?ContentTypeID=1Thu, 27 Oct 2016 07:46:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8b25dd12-a834-4e95-9261-228ff1141474Sigurd<p>A advertisement packet does not need to be <em>&quot;correct&quot;</em> for the sniffer to display it. Here is an example of a malformed advertisement packet captured by the sniffer:</p> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/malformed_5F00_packet.png" alt="image description" /></p><div style="clear:both;"></div>