RockPI 4C - Connecting an external wireless antenna

[rileonar]

Hi,
I bougth a rockpi 4c board and I’m using it into a metal case, so the internal wifi antenna is useless.
Is it possible to connect an external antenna?
Unfortunately at a quick visual inspection I didn’t find any suitable connector (SMA, UFL).
Any hint is appreciated.
TIA
Rik

[jack]

You should buy the T variant for external antenna. If you want to do some soldering work, here is the link:

New PCB Version? 1.3 ->1.4

Yes, by default the antenna is routed to on board antenna, but we can also solder an U.FL connector and change the orientation of C3/C4(sharing one pad) to U.FL connector. [wifi_ant] Check page 22 of the sch: https://dl.radxa.com/rockpi4/docs/hw/rockpi4/rockpi4_v13_sch_20181112.pdf [ant_sch]