https://devzone.nordicsemi.com/f/nordic-q-a/13198/signal-strength-degradationHiiii In our industrial product we are using nrf24l01+ on PCB which will be going to fully coat with epoxy material while manufacturing. My question is that , whether this coating material will degrade the signal strength of nrf or not? we are usingen-USTelligent Community 13Fri, 15 Apr 2016 12:43:45 GMThttps://devzone.nordicsemi.com/thread/50337?ContentTypeID=1Fri, 15 Apr 2016 12:43:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1e69c870-e029-4bd4-aa28-3412f2563e3cFormerMember<p>Unfortunately, I&#39;m not a material expert, so I don&#39;t know how much those materials will degrade a RF signals. Yes, signals can pass through pores. Therefore, a box with small pores will have less signal degradation than a box without pores.</p> <p>Metal is the material that blocks/degrades a 2.4 GHz signal the most.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/50336?ContentTypeID=1Fri, 15 Apr 2016 07:27:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8c692e5d-f155-4a38-8e54-99d4ba4a4b1fRajashri<p>okay, thanks Kristin for your suggestion,but we are not using plastic material,we will use epoxy or PU resin compounding material for encapsulation. I want to ask one more query that if we will place this coated PCB into a box of having small pores for air ventilation, then also signal can pass with same strength or not? Does anybody encounter such type of issue earlier? Kindly suggest best advice...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/50335?ContentTypeID=1Thu, 14 Apr 2016 13:21:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c42cd3b6-18a8-432f-8fe1-b741263f5746FormerMember<p>Plastic materials will typically not degrade a signal. However, I would recommend you to test the range with and without the coating. If there is a difference in range, it could be that coating changes the impedance of the antenna, and hence, reduces the range.</p><div style="clear:both;"></div>