https://devzone.nordicsemi.com/f/nordic-q-a/1739/comprehensive-dtm-guideHi, I am using the nRF6310 + PCA10005 +nRFgo Studio as the lower tester, the supplied python scripts as the upper tester, and my own custom board as the DUT. I&#39;ve looked through all the separate documentation I can find, e.g. nAN-34, Dev Kit useren-USTelligent Community 13Tue, 04 Mar 2014 14:36:20 GMThttps://devzone.nordicsemi.com/thread/7626?ContentTypeID=1Tue, 04 Mar 2014 14:36:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:73eff232-ea56-4d6d-8129-1c134b15f390Ole Morten<p>We don&#39;t really have any other resources than the ones you list, but I would expect them to cover what&#39;s needed. If you have specific questions, I&#39;d recommend you to post them separately, so that we can try answering them one-by-one.</p> <p>In general, the steps would be to make sure you connect a UART interface on your PC to the UART lines configured in ble_app_dtm (change them if you want), and then start the DTM test. Depending on whant you want, you can use a spectrum analyzer, connected to the antenna output of the radio chip to measure everything that&#39;s needed. Just for initial testing, you should also be able to just connect an antenna and see for instance a carrier. If you want to use a full transmit/receive test, you&#39;d have to have another DTM application connected to a different UART port to be used as the receiver (or transmitter).</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/7625?ContentTypeID=1Wed, 26 Feb 2014 12:16:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6386d404-9ddc-4a54-8b7e-861033e1e8bfrun_ar<p>The DTM specification is described in the Bluetooth core specification, volume 6, Part F: Direct Test mode.</p><div style="clear:both;"></div>