2.4GHz realtime FFT spectrum analyzer/spectrogram protoype with HDMI output from a Artix7 FPGA

** Sorry for the low res video! I only found my 10Y old camera so far. I'll create futher recordings with higher resolution soon **
What you see here exaclty is the downconverter AD/Maxim MAX2831 transferring a 40MHz window of the 2.4GHz ISM frequency band wond to a 2x20MHz complex baseband. This is digizied by a Texas Instruments 12 BIT ADC3222 and streamed via 4 LVDS lanes into a Artix7 XC7A100T FPGA. This chip then transforms the time domain into the frequency domain, creating then a screen display send out to a HDMI capable monitor.
It is the first part of the EU-funded research project. In a first step to the 2.4GHz intrusion / hacker attack sentinel device "RA-Sentinel" I designed this Spectrumanalyzer gadet the test the lowest layer. The Spectrum Monitor can be seen as a proof of concept. For some it may be a nice tool already... You're free to go ahead, build and modify it to your needs. All is open available to build it by yourself. I will offer ready-to-use RF frontend s later in my Tindie shop.
Source code, PCB design of the frontend is available here:
github.com/Tobias-DG3YEV/RA-S...
The ready FPGA biard is available here:
de.aliexpress.com/item/100500...
( you may not need the big XC7A100T, maybe the 075 or even 50 is sufficient - if you be careful with the RAM usage or use the external DDR or SDRAM as a buffer (my next step btw.)
73 de DG3YEV
Funding
This project is funded through NGI0 Entrust (nlnet.nl/entrust), a fund established by NLnet (nlnet.nl) with financial support from the European Commission's "Next Generation Internet" (ngi.eu) program. Learn more at the NLnet project page: nlnet.nl/project/RA-Sentinel.