https://devzone.nordicsemi.com/f/nordic-q-a/26101/nrf51822-receiving-range-problem-transmit-range-is-good-however-using-micro-esb-proprietary-libraryHello, We developed a few devices using the nRF51822 and noticed that the receiving range is reduced significantly from our nRF24L01 devices. The transmission range is good however. We are using the micro ESB libraries with no soft devices, and areen-USTelligent Community 13Wed, 25 Oct 2017 16:01:56 GMThttps://devzone.nordicsemi.com/thread/102860?ContentTypeID=1Wed, 25 Oct 2017 16:01:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:393ce581-9017-476f-b85d-cda8afecf739Mahonroy<p>Thanks for the response! The RF module manufacturer wired up pin 17 to the RX of the PA, and we did not know this (the solution was to set pin 17 to output high). Now I really wish we integrated with FOTA hehe.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/102861?ContentTypeID=1Fri, 20 Oct 2017 10:58:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:333975f2-3812-4da0-b9fc-0ee985658699J&#248;rn<p>Do you have an image of the schematic and layout of the PCB where the nRF51822 and the nRF24L01 are mounted, especially for the RF output? I&#39;m looking at the problem3 image and I&#39;m curious as to how you&#39;ve connected the nRF51 to the antenna. The nRF51822s receiver has better sensitivity than the nRF24L01, so it should have longer range when used as a receiver.</p><div style="clear:both;"></div>