Thank you. I assumed as much but never knew for sure.
Basically. Last time I had to wait until “Yeah, it won’t charge even using my extra battery and/or extra charger, so I actually can’t do work,” to get a new one.
Well, this bandwidth is possible if it’s a sampling scope with a very short sampling window. My brother has built a USB-connected 'scope that will capture 2 GHz repetitive signals quite nicely. The trigger circuit was a bit tricky.
The HP85 was pretty good. I once operated one at the end of a 100M extension unit, balanced on the breech of a tank. That thing gots loads of abuse and survived it admirably. Its only feature that dismayed newbies was that when editing the Basic programs you had to remember to press enter at the end of every line - otherwise the text on screen would alter but when you did press enter, only the current line would update. That and the serial port never really worked quite right in assembler, but it was livable with.
One minor bug and a minor UI issue, we did not know how lucky we were.
Yup, there is only as much information in your ADC data as you actually collect. The sampling scope takes a shortcut on repetitive signals, but it’s useful if you already know what you’re looking for, so it’s mostly useless for finding glitches.
I’m currently building a spectrometer that uses Tektronix’s 12.5 GSPS ADC to capture radio astronomy data over a 4 GHz usable bandwidth. It’s a fun project - rather bleeding edge. The digitizer and FPGA board stack costs as much as a low end house.
I am currently working on a little project to amuse my grandchildren that uses PICs with a 20 microsecond A/D acquisition time. The entire main circuit board with components costs as much as a small house. Small as in a few Lego bricks, to be exact.
Admittedly the last time I voluntarily bought a Dell laptop for myself was
in 2005. Glad I got a 4 year warranty because I went through 2 CD drives, 3
hard drives, a screen, and 4 keyboards, and had to reinstall windows at
least once a year in addition.