2025-09-21 –, Tesla
This talk is going to give you a superpower, to troll those who do not understand RF and are afraid it will give them STD or something like that...
And on less important note, it will also let you understand a bit about RF so we can maybe start to secure RF around us?
No super advanced math required (or allowed) during this talk
RF is not magic and I am going to prove this to you.
We are going to skip the boring stuff and to go straight for how you can create, shape and transmit and receive RF.
This will also let you understand some quite interesting RF attacks.
This presentation is intended with anyone with no experience or a bit of experience.
People will leave presentation with some intuitive understanding of how things work, and at that point, they will be at good position to start learning by themselves.
Topics I will cover
- Oscillations - what they are, what is frequency and how to produce them
- Modulation - what it is and how it helps up transport "data"
- Mixing - or how we are able to transmit at such insane frequencies
- Filtering - how do we get useful data back from all of that EMI happening around us
- Demodulation - how do we turn RF back into "data"
- Digital modulation types
- Preambles
- Clock recovery
- A bit about antennas
Tools I will use and demonstrate:
- TinySA ultra (and more powerful spectrum analyzers)
- RTL-SDR (and more powerful SDRs)
- NanoVNA (and more powerful VNAs)
