@peterz Hi,The design layout in WisNode-Lora reserve the area for LC filter circuit. The purpose is provide
the flexibility for the developer to adjust the components value to reach best RF performance
with external antenna. The different value should depends on the Casing, Design and position
etc. Also, we have silk print with L1(see picture 1.0). The default components we used as CAP in
this area only for basic function. Therefore,is not required soldering C13, C14;Reason:
And on our WisNode-Lora Board, there is no strong signal source near the antenna line. So
no need to add LC filter; and in the position of L1, we welded a capacitor. You need to decide on
what to do according to the actual situation.