https://devzone.nordicsemi.com/f/nordic-q-a/37073/sniffing-bluetooth-signalHi, I would like to know if you can sniff BLE packets with really low transmission power, for example can you sniff a -35 db signal with any average bluetooth receiver? Would you need more advanced equipment to sniff the packets? Thank you, Cryen-USTelligent Community 13Thu, 02 Aug 2018 07:29:45 GMThttps://devzone.nordicsemi.com/thread/142522?ContentTypeID=1Thu, 02 Aug 2018 07:29:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:19cc504c-602a-48e8-a696-5dfc43ceb7c6FormerMember<p>Whether or not a sniffer can sniff a BLE packet depends on the signal strength when received at the sniffer, and the RX sensitivity of the radio being used (<a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Fradio.html&amp;cp=2_1_0_22_14_4&amp;anchor=unique_919665808">nRF52832</a>).</p> <p>To test, you can use the nRF Sniffer. The nRF Sniffer should be able to sniff a signal of -35 dBm without any problems. With nRF Sniffer v.2.1 you can use one of the following kits:</p> <p>• nRF51 Development Kit (PCA10028) v1.0 or later and a micro USB cable<br />• nRF51 Dongle (PCA10031)<br />• nRF52 Development Kit (PCA10040) and a micro USB cable</p> <p>&nbsp;</p><div style="clear:both;"></div>