How to measure centre frequency on the nRF52832 ?

[manasaA]

Hi,

I am using the nRF52832 and I have been trying to meausre the centre frquency on a specturm analyser. But, the centre freq on the specrum analyser is 1.81GHz when it is supposed to be about 2.4GHz.

I am using the blinky example to measure the freq but it does not seem to be working. The blinky experiment is working, just the measuring part does seem to want to work.

What do I do differently ?

Thank you

[bjorn-spockeli]

You are using the experimental_ble_app_blinky right? Also can you describe your measurement setup and/or add a screenshot of what you're ssing on the spectrum analyzer?

[manasaA]

hi yes im using experimental_ble_app_blinky_app. Adding pictures of the setup and the varying center frequency values.

IMG_20170427_131613.jpg IMG_20170427_131622.jpg IMG_20170427_131901.jpg

there are few more pictures with even more absurd center frequencies.

[bjorn-spockeli]

To me it looks like your only getting noise and it could be that you're missing the short window where the nRF Device is advertising. My suggestion is that you use the rf_test example in our SDK.

[manasaA]

Yes, thank you!! it worked.

[bjorn-spockeli]

Great! I would appreciate if you could mark the answer as correct/accepted by clicking the checkmark in the grey circle to the left of the answer.