https://devzone.nordicsemi.com/f/nordic-q-a/5470/distance-of-bleI have a nRF51-DK. I would like to control the nRF51-DK through my mobile device. What is the max. distance which can be reach with BLE(nordic chip)? Is it possible to increase the distance? If want, that the nRF51-DK only can connect with mobileen-USTelligent Community 13Sat, 07 Feb 2015 14:17:41 GMThttps://devzone.nordicsemi.com/thread/19089?ContentTypeID=1Sat, 07 Feb 2015 14:17:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0b74c237-9e5f-46f4-be07-8f4cca577f42Hung Bui<p>Hi Inspectron,</p> <p>The range of RF signal depends on the environment. So it&#39;s hard to say how far can BLE reach. But we usually give the estimation of 10m indoor (office environment) and 30-50m outdoor light of sight.</p> <p>You can increase the distance by adding power amplifier. If you connect to a phone, then it will be a oneway communication, because most likely you don&#39;t have amplifier on the phone.</p> <p>It&#39;s possible to use RSSI to detect (estimate) the signal strength and can convert that to distance. It will not be very accurate.</p> <p>To fix the distance of BLE or any RF signal, I think the only solution is to build a Faraday cage around.</p><div style="clear:both;"></div>