Comment Comment by DoctorOetker the oscilloscope has 20 MHz bandwith, any old VGA monitor (CRT/LCD/etc) has at least 3 30MHz ADCs (1024x768x60=~60Msps=~30MHz bandwidth).ADC's may be expensive in low volume discrete form, but integrated in (standardized!) peripheral bus (USB) controllers, this could be very cheap.As always, it depends on the threat model: do you wish to protect against manufacturers/nation states or not? parent DoctorOetker 8 years ago
ADC's may be expensive in low volume discrete form, but integrated in (standardized!) peripheral bus (USB) controllers, this could be very cheap.
As always, it depends on the threat model: do you wish to protect against manufacturers/nation states or not?