NRF24L01 PA LNA never works

Hi all,

NRF-PA-LNA is such a popular module, and I’m now using it in my project. I bought a pair of small modules (with printed antenna) and a pair of modules with PA & LNA. However, while the small modules work perfectly with my program, the ones w/ PA LNA don’t.

I’ve tried every possible solution I found on this forum, which includes

power the NRF-PA-LNA with 2 AA batteries;
connect a 10-uF capacitor between VCC and GND;
set power level to MAX or MIN; set the two modules far apart with no obstacle between;
demount the SMA antenna…

But none of them works out the problem.

I wonder if I’ve tried everything I could do. If so, I wonder if it’s just becuase the modules were broken since the very beginning.

I also reviewed the user feedback for the Ebay seller, “nc-maker-shop”, whom I bought the modules from. Buyer satisfaction was found to be 100%. I wonder what’s going on. Thanks a lot for your help.

Stay safe and healthy!

are you here to hire someone to help?

Well... I just wonder whether the modules are just broken at all

just post this in general electronic

I see! Thanks for letting me know!
Sorry for wrong placement since this is my first post...

No worries, please read the how to use posts so you provide all the info needed to diagnose