[Applied Science] shows how to make an RF spectroscope. You can see the video below. An oscilloscope-resident function generator creates a signal that he feeds to an amplifier because you need a ...
Making an oscilloscope is relatively easy ... Inside the instrument is a pair of sample-and-hold circuits using fast diodes as RF switches, triggered by very low-rise-time short pulses.
The same NES test system displayed at MWC 2025 was shown at O-RAN Global PlugFest Fall 2024 at the 14y Lab. Source: EANTC AG ...