nRF52833 DK antenna

[malik]

nRF52833 DK i have seen from Images of board that an external antenna will be required(there is a Antenna connector on board). I am wondering if it has built-in antenna or not? 

[ketiljo]

The antenna connector is optional, for testing different antennas or doing conducted measurements on the radio. There's a 1/4 wave PCB antenna on the DK. https://infocenter.nordicsemi.com/topic/ug_nrf52833_dk/UG/nrf52833_DK/hw_rf_measure.html