DTM & Signal strength check Procedure by tool

RE: DTM & Signal strength check Procedure by tool

Andreas — Mon, 20 Jul 2020 13:10:21 GMT

Hi,

The screenshot from nRF Connect indicates it is transmitting at 2426 MHz, and the spectrum analyzer shows a carrier at 2426 MHz, as expected. What do you mean about the results are not good? The peak power reading is -17dBm which is indeed low if you are testing conducted, if you are testing radiated though this is normal.

Best regards,

Andreas

RE: DTM & Signal strength check Procedure by tool

Parteek Singla — Thu, 16 Jul 2020 14:22:45 GMT

Hi ,

I am using DTM mode, as you suggest we flashed image from SDK, Now when we go to use NRF connect the tool with below setting

And we getting below result on the oscilloscope

Please suggest to us, are we going in the right direction? because results are not good

RE: DTM & Signal strength check Procedure by tool

Andreas — Fri, 10 Jul 2020 06:34:48 GMT

Hi,

No not really. You can have a look at the nRF Connect repo and DTM documentation, but that's about it. I recommend that you just try it out and acquaint yourself with it, if you do not have a spectrum analyzer you can use the RSSI application with a nRF52 DK to view the RF traffic on air.

Best regards,

Andreas

RE: DTM & Signal strength check Procedure by tool

Parteek Singla — Fri, 10 Jul 2020 05:43:55 GMT

Do, we have any document for this ?

RE: DTM & Signal strength check Procedure by tool

Andreas — Thu, 09 Jul 2020 13:05:17 GMT

Hi,

Load DTM onto your DK or DUT
Connect it to the PC using a UART-USB COM port bridge (e.g. nRF52 DK)
Open nRF Connect for Desktop and the DTM app
Connect to the relevant COM port device in the menu at the top
Configure and run

Best regards,

Andreas

RE: DTM & Signal strength check Procedure by tool

Parteek Singla — Thu, 09 Jul 2020 06:42:39 GMT

Hi,

Let me clear my point one more time, my aim is to put my device in DTM or continuous Transmission mode on particular signal strength like 0dBm then what is the procedure of that process ?

RE: DTM & Signal strength check Procedure by tool

Andreas — Wed, 08 Jul 2020 06:31:30 GMT

Hi,

nRF Connect for Desktop and nRFgo Studio can be used to control the DUT, but only configure the DUT to enter TX or RX on a specific channel or sweep. You can not use nRF Connect for Desktop or nRFgo Studio to conduct a DTM test, or RF-PHY conformance test, for that you need to use a Bluetooth test set.

Best regards,

Andreas

RE: DTM & Signal strength check Procedure by tool

Parteek Singla — Tue, 07 Jul 2020 12:01:11 GMT

Hi,

Then my question is that, DTM feature which is available in nRF connect & nRF studio, how it works >

or what we can do with this option?

RE: DTM & Signal strength check Procedure by tool

Andreas — Tue, 07 Jul 2020 11:57:58 GMT

Hi,

The DTM application has a vendor specific payload command that changes the output power. Testers and proprietary control might not work with this, in which case you can also change the source code and rebuild the application.

Best regards,

Andreas