https://devzone.nordicsemi.com/f/nordic-q-a/73719/bad-range-with-nrf52840-as-ptx-and-nrf24l01-as-prxI am using nrf52840 as PTX and nrf24l01+ as PRX. The application I am working on requires me to send 30 bytes from PTX to PRX at a 2 kHz packet rate. If both devices are near each other on my desk, it works very well. However if I pick up the transmitteren-USTelligent Community 13Wed, 14 Apr 2021 19:39:46 GMThttps://devzone.nordicsemi.com/thread/304931?ContentTypeID=1Wed, 14 Apr 2021 19:39:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f902b42f-e213-4046-b08c-313d577f1b59cwmoreiras<p>thank you!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/304922?ContentTypeID=1Wed, 14 Apr 2021 18:57:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4825cac9-17ea-4962-a3e4-2917c3511256Kenneth<p>If you are doing any layout with the nRF52 you can ask us for a layout review before shipping prototype to production, but before asking for an layout review make sure to check out:</p> <p>You can find some <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/ref_circuitry.html?cp=4_0_0_6_2_13#concept_hf5_hzm_fs">PCB guidelines in the nRF52840 product specifications</a>&nbsp;that you should follow.</p> <p>In terms of PCB antenna, I suggest to check out the antenna for instance on the nRF52-DK (or any other 2.4GHz antenna design you may find (e.g. Wi-Fi, Bluetooth or other 2.4GHz application)). I recommend to add room for a Pi-network (as shown in <a href="https://infocenter.nordicsemi.com/pdf/nwp_017.pdf">chapter 4.2 here</a>) between the RF matching network shown in the nRF52840 product specification and your PCB antenna, this will allow for tuning the antenna to 2.4GHz for best performance. If you choose to use a CHIP antenna, make sure to follow the manufacturer guidelines of placement and grounding.</p> <p>One final suggestion: Always start by placing the antenna first in the design you are doing.</p> <p>Kenneth</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/304914?ContentTypeID=1Wed, 14 Apr 2021 16:33:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7d19e831-1db0-4438-81b8-5d252301b7a4cwmoreiras<p>So i thought I had tested this, but I guess I had not. Range seems to be better with my DK and my nrf24 board. I guess that suggests that the issue is with the particle boron, which seems strange to me honestly.</p> <p>Can you point me to a resource on antenna PCB layout? We are designing a board with the nr52 and hopefully it will have better range than the particle boron</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/304911?ContentTypeID=1Wed, 14 Apr 2021 16:29:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:97704f67-f006-48b4-ad34-cde9c5e1a8edKenneth<p>How about distance of nRF52-DK to nRF24?</p> <p>Kenneth</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/304674?ContentTypeID=1Tue, 13 Apr 2021 20:21:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a9333069-0f51-4ff4-bcc6-51d9fa20dd77cwmoreiras<p>if i use nrf24 on both sides, the distance is good. if i use nrf52 on both sides, the range is not good (tried it with 1 nrf52 DK and 1 particle boron which has nrf52 on it)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/303773?ContentTypeID=1Thu, 08 Apr 2021 12:36:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4d68a3b6-07b0-49c7-85ea-f6ed22360d07Kenneth<p>If you use nRF52 on both sides of the link, is the distance good then?</p> <p><span>If you use nRF24 on both sides of the link, is the distance good then?</span></p> <p><span>Kenneth</span></p> <p><span></span></p><div style="clear:both;"></div>