https://devzone.nordicsemi.com/f/nordic-q-a/12300/mass-production-pcb-testingHello guys , We developed a product that using a nRF51xx chip and now we are preparing for mass production. The antenna was designed on PCB and for PCB we are using FR4 Our big concern is that the FR4 material is not designed for 2.4 GHz and becauseen-USTelligent Community 13Thu, 03 Mar 2016 10:14:03 GMThttps://devzone.nordicsemi.com/thread/46510?ContentTypeID=1Thu, 03 Mar 2016 10:14:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f4a91da4-f2d5-4ffc-bee2-7c265b92259fFormerMember<ul> <li> <p>The PCB material on our dev. kits is FR-4, see <a href="https://devzone.nordicsemi.com/question/150/reference-design-pcb-thickness-and-material/?answer=152#post-id-152">this</a> thread for some more details.</p> </li> <li> <p>By &quot;quality of the antenna&quot; I assume that you mean the range. For testing the antenna in production, measuring the RSSI is the only way to do that. I would think that it is possible to use DTM for that, however, the example that we provide does only return the Packet Error Rate (PER). It may be an option to use the radio or the radio_test example in the SDK, and then retrieve the RSSI. An example of how to retrieve the RSSI can be found <a href="https://devzone.nordicsemi.com/question/7476/how-to-get-rssi/?answer=7486#post-id-7486">here</a>.</p> </li> <li> <p><a href="https://devzone.nordicsemi.com/question/69874/manufacturing-test-for-nrf51822-mass-programming/?answer=69963#post-id-69963">This</a> thread has some suggestions for some basic testing.</p> </li> </ul><div style="clear:both;"></div>