Tearing into a $1.3M Oscilloscope
hackaday.com
hackaday.com
If you even have a passing interest in electronics or radio, I can't recommend his channel enough. He's regularly doing teardowns and even repairs on remarkably complex (and expensive!) test equipment from the past few decades. RF is weird and you'll see some complex and alien physical configurations in the equipment that many times look like dark arts. He puts a lot of effort into his videos and the scenarios he creates to demonstrate the power that this technology brings to the table.
This 128GHz FFT is insane. I'm honestly a little surprised that this doesn't have ITAR regulations on it:
This format is amazing but highly unpopular in other fields. People want more entertainment and a lot of content creators succumb against their will to stay afloat. Linus Tech Tips and MBKHD are the worst offenders of this.
The frontend looks like something completely alien. I am pretty sure the amount of metal is to get rid of complicating effects of having PCB anywhere near the sign and to be able to machine it so that signal paths are matched to something like micrometers. I sort of understand principles, but same way as understanding principles of electromagnetic wave reflection and propagation tells you nothing about how to make invisible planes.
I wonder if the frontend is result of finding solutions to equations, meticulous computer modeling or just humongous number of experiments (sort of like aerodynamic tunnel work).