RE: External Antenna nrf52840 dk

Paul M. — Wed, 13 May 2026 08:22:07 GMT

Hello Asbjørn,

thanks for the quick reply! I am currently evaluating the coded phy solution against the Aircable. The application is to communicate with an implanted bluetooth device. Since the body is moving I dont always have the same signal strength and a high-gain directional antenna also would not work. Coded phy would be an attractive solution, however I am losing the advantage of the high gain omnidirectional antenna I can use with the Aircable. If the solution using coded phy works out in the evaluation, I would design my own Board with an nrf52 or 53 chip on it to use coded phy with.

Best,

Paul

RE: External Antenna nrf52840 dk

Asbjørn — Wed, 13 May 2026 08:07:03 GMT

Hello Paul,

The place to solder a different antenna would be the same spot J1 is in, but I have to say that if J1 isn't a good enough permanent solution for you, it's unlikely that a hand soldered solution onto the DK instead would prove to be a better one. I'd recommend starting with the J1 connector and use that for your development.

The HW design files for the DK can be found here: https://www.nordicsemi.com/Products/Development-hardware/nRF52840-DK/Download?lang=en#infotabs

What sort of application is this? Are you looking at developing your own board in the long run or is this a one-off implementation? If it is just a one time thing, I'd stick with the J1.

Best regards

Asbjørn