Hi,
We are the company which widely use your products in our devices. Currently we have the nRF9160 based device which have permanent trouble with radios. I want to ask you to help improve our design answering on the next questions:
1) nRF9160 has built-in features to test signal and communication quality. Do you have some references and/or manuals to make these parameters useful for us? Maybe you have some scripts or software to check the RF performance? Most of them is from the communication field of knowledge which is slightly out of my specialty and today I will prefer to save my time for development and rid of digging in this way.
2) Our product have a small factor 50x40mm. Based on your experience what topology for the radios you can advice as one which offers better performance, reliable communication stability in hand-held solution and without titanic efforts in development (especially antenna matching): with multiplexor and one antenna LTE+GPS (as Thingy:91 has) or splitting antenna practice without multiplexing (as your larger dev board has or NOTM.2 do for instance https://www.phytec.fr/fileadmin/user_upload/IoT_ew20_e_DS_web.pdf). I'm sure you know similar products which already implements successful solutions and I hope you can share some ideas to made a robust design. If you have some antennas, amplifiers, filters which you prefer to use in the design I will be happy to get your suggestions in the parts selection section. I saw the "nRF9160 Antenna and RF Interface Guidelines" document but it does not contain practice experience based notes and compares.
Thanks in advance!
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