External Antenna on B&T BW16

I have a B&T BW16. I would like to use it with an external antenna. I assume the solder pads are for a coax connecter but would like some clarity. Is there any documentation or guidelines on how set set up an external antenna?


It looks like it is a pad for an IPEX antenna connector.
Referring to the RF schematics in the module datasheet, it looks like you might need to change the orientation of a resistor to switch the output to the RF pad, in which case you would probably need to remove the RF shielding cover, but the schematics is too blurry to be sure.

It might be better to contact ai-thinker, the manufacturer of the module directly, for detailed information on how to change over the RF output, since there are no silkscreen labels on the module pcb. My guess would be the resistor at the top center of the module.

@wyy Thank you. I agree with your assessment. Too bad its not documented

@mair hello,
do you have any updates about this?
I will use the external antenna in my project.
If you have the solution to set up it, please let me know how to do.
I would be grateful to hear the reply from you, thanks.

不好意思,想詢問您是否有找到解決方法?關於外接天線 感謝您


买一个 ipex 天线插座焊接上,然后改一个电阻的位置,大概率应该可以。只是手上没有模组的设计资料,不敢确定,或许也可以用电表把两个天线的线路测出来。

datasheet 是有這個原理圖,但我是看不太出來。。。