Configuring nRF5340 for RF measurements

[arun12]

How to configure nRF5340 for RF measurements. which programs can be flashed to the device to get 100% TX and 100% RX and measure the RF parameters

[arun12]

Hi Runar,

By flashing the DTM example I'm executing the TX and RX tests in the DTM tool like this,

But connecting the external antenna to a power meter and testing, I'm not seeing any power.

Do I need to make some modifications on the board to see the power on TX and RX tests?

Regards,

Arun

[runsiv]

Hi Arun

I had another chat with some of our HW guys and they recommended to rather use the radio test sample when testing output power 

Regards

Runar

[arun12]

Hi Runar,

on trying to execute Radio Test Sample, I'm facing the below build error,



on using DTM as I said early, though the DTM in SDK is showing power in the UI, I'm not observing any power on the power meter, or these is  o significant rise in current measured.

please help me carry out RF measurements.

Regards,

Arun

[runsiv]

I was not able to reproduce the error on a newer version of the sdk and toolchain v2.52. So I will see if I can reproduce it on an older version of the sdk(v2.3.0)

As for the measurement, could you describe your setup? 

Did you read the section regarding test setup? The DK should change from internal antenna to external as soon as you connect an external antenna to it, 

It also links to the following white paper https://infocenter.nordicsemi.com/pdf/nan_34.pdf 

Regards

Runar

[arun12]

Hi Runar,

I'm flashing these example programs using vs code extension and trying to measure the output power at that  point using a power meter, also I've connected an ammeter to VDD and VDD_HV points to measure current consumption at that time.

on flashing DTM example, though I'm seeing power on the GUI of DTM in nRF connect for Desktop, I'm not seeing any power measurement on the power meter and I'm not seeing any significant rise in current on the ammeters. 

I will check again with the pointers you've given on the previous response.

please update if there is any further insight on carrying this measurements.

Regards,

Arun