Hi,
I know that this question was asked before, but I can't find a complete/recent answer.
We are trying to use nrf52 DK board to perform bluetooth localization. In our tests we found that there are significant signal changes (more than 10 db) by changing board orientation.
I know that there is a monopole antenna on the PCB, but I could not find real (i.e. not theorical) radiation diagram.
Is there any radiation diagram available so that we can better understand the problem?
Do you recommend to connect an external antenna for better peformance when doing bluetooth localization?
Any help is very much appreciated!
Thanks!
José Costa