I’m using a bladeRF 2.0 micro A9 and recently I’ve been facing random FPGA loading issues.Sometimes the FPGA loads perfectly fine, but other times I get these errors:
dev->backend->load_fpga failed: File or device I/O failure
Failed to switch to NULL interface
The strange thing is that I’ve successfully loaded FPGA images multiple times using the same laptop and USB cable before. I’m using Windows 11. Could this be due to insufficient USB power from my laptop, or is there something else I should check?
I’m also considering programming through JTAG to see if that helps. Has anyone faced a similar issue?

In my compact PCB design I have a U.FL connector that will connect to a FPC antenna using 1.13mm coax, but it runs over the LiPo inside the enclosure before exiting. I'd imagine a battery produces some EMI, am I correct on this? If yes, what would be the best way to lessen the effect, would some cable sleeve or similar help?

im an electrical engeneering student looking for ideas for my final project, this is a research project.
i thought about doing my project about "amplification and dumpning" by changing the antenne shape, size and material. but my professor told me it wasnt a good idea. does anyone have any good ones?

We recently received a Rohde & Schwarz FPL1003 spectrum analyzer.

It's always interesting to see how professional RF test equipment holds up in the second-hand market.

https://reddit.com/link/1xhbud6/video/9kydlgrg84yh1/player

Help me design please