https://devzone.nordicsemi.com/f/nordic-q-a/21576/how-to-test-nrf51822-transport-data-ratenow I used sample code of radio change NRF_RADIO-&gt;MODE = (RADIO_MODE_MODE_Nrf_2Mbit &lt;&lt; RADIO_MODE_MODE_Pos)； In transmitter code , I change while (true) { send_packet(); packet ++; nrf_delay_ms(1); __WFE(); } In receiveren-USTelligent Community 13Fri, 28 Apr 2017 01:14:59 GMThttps://devzone.nordicsemi.com/thread/84733?ContentTypeID=1Fri, 28 Apr 2017 01:14:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f0e7efe5-1a7b-4172-84d5-e54c1cb213a4suker<p>Add for test &quot;Transport data 1KB/S, Data lose is about 80%&quot;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/84735?ContentTypeID=1Wed, 26 Apr 2017 01:13:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e142cc19-3450-41ea-872e-3048af9dec1fsuker<p>You are right, Think you very much!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/84734?ContentTypeID=1Tue, 25 Apr 2017 10:13:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5697007d-72d1-4191-8931-b54c8b8b3ec3ovrebekk<p>Hi</p> <p>What is your end goal of this exercise?</p> <p>If you are planning to implement an application later on I would strongly recommend using an RF library, such as the nrf_esb implementation available in the SDK. Then you will get features such as FIFO buffering, acknowledgements and packet re-transmission for free, and you don&#39;t have to focus on the low level radio handling.</p> <p>If you use 255 byte payloads you will get pretty high data rates, and you can increase it even more by disabling the acknowledgement feature (even though you won&#39;t detect packet loss anymore).</p> <p>Best regards<br /> Torbjørn</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/84732?ContentTypeID=1Tue, 25 Apr 2017 09:18:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84065821-2fae-4097-9861-71d22a871e9cWojtek<p>You want to test maximum data rate? Why are you using nrf_delay_ms(1) then? What is your goal?</p><div style="clear:both;"></div>