how to set a fixed frequency to NRF51822

[jim.g]

I want to test the Bluetooth signal performance of NRF51822 with frequency spectrograph,but Idon't know how to set a fixed frequency to NRF51822,I need your help

thank you

[Jui-Chou (Rick) Chung]

The Direct Test Mode (DTM) can help you tes the RF signal performance.

The reference information can be found in here and here.

If you are using nRF5 SDK 11, you can check the example project under:

nRF5_SDK_11/examples/dtm/direct_test_mode/pca10028

And using the nRFgo Studio to send the control signal through the UART and emit the RF signal in specific RF channel. Hope the upon information can help you : )