https://devzone.nordicsemi.com/f/nordic-q-a/114444/reception-levels-of-ble-signalsDear Ladies and Gentlemen, We have recently started comparing the BM833 (and the corresponding nordic devkit nrf52840) with an other hardware (ESP32), neither uses amplified antennas. These exist as peripherals, both in our own hardware PCB. All testsen-USTelligent Community 13Wed, 04 Sep 2024 12:14:47 GMThttps://devzone.nordicsemi.com/thread/501150?ContentTypeID=1Wed, 04 Sep 2024 12:14:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c1eae62d-223d-4af5-9a4e-4c35e3949ca0Simonr<p>Hi Richard</p> <p>Can you share some HW details about the BM833 PCB and the ESP32 PCB you&#39;re using for comparison here? This seems mysterious indeed. Are you certain the ESP32 doesn&#39;t have any gain at all, as 0dBm for a device should be absolute and the same exact output power should result in very similar RSSI values even though it&#39;s not the best way to measure sensitivity.&nbsp;</p> <p>Do you have a spectrum analyzer so that you can measure the actual TX power of the devices you&#39;ve tested out here?</p> <p>Also, have you done any tests at different distances to see if one drops the connection faster than another or if it is basically similar.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>