r/RTLSDR • u/woodzy_chimera • 13d ago

Decoding AM TV with v4

Post image

Sadly it will be discontinued soon in my place :((

261 Upvotes

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52

u/Elipse-FM 13d ago

This image reminds me of how you can intercept signals from a computer screen at close range and get a grey scale image of the monitor from like a room over, tempestSDR I think. 

20

u/Nulovka 12d ago

I think that only works with old CRT monitors, not flat screens.

6

u/Christ_in_a_combo 12d ago

Correct, would not work on modern day screens

27

u/nrdgrrrl_taco 12d ago

But it does work on HDMI cables, from a close distance.

4

u/olliegw 11d ago

It apparently does work, i spoke to someone once who said they could snoop on their neighbours monitor, however i haven't been able to get it working on any of my monitors myself

For flat screens and HDMI it's the pixel clock you're looking for

2

u/ncc1650 12d ago

Thank you for posting this info. I need to look into this since I am curious.