DTM or Radio Test

[AmiguelS]

Hello! I need to perform some radio tests on a board that contains an nRF52 SoC. The nRF5 SDK provides two ways of performing such tests, either using DTM, as specified by Bluetooth SIG, or using the Radio Test example.

I'm aware that DTM sends packet with a known content, allowing to compute a Packet Error Rate.

From what I understood, DTM tests not only the radio, but all the physical layer, while Radio Test only tests the radio itself. Is this correct?

In summary, what I'd like to know is what does each of these test methodologies allow to measure/control that the other one does not.

Cheers!

[FormerMember]

DTM and the radio test example represents two different tests: DTM is for Bluetooth testing and the radio test example is for testing the radio.

For qualification for regulatory standards like FCC, ETSI, etc. the radio test example is most handy, because those qualifications are related to the radio itself.

For Bluetooth qualification, DTM should be used.