The Treachery of Oscilloscopes — Analog Oscilloscope Bandwidth Considerations
My friend Alan (w2aew) has done a great little video about bandwidth factors in scopes. He writes:
I’m often asked by hams and hobbiests – I want to buy an oscilloscope, what bandwidth scope do I need? I usually answer – buy as much as you can afford, even if you are working on low frequency circuits. This video shows an example of why. Even simple audio circuits might have some hidden evils!
(Also, that trace at the 3-minute mark looks like the Bat Signal — na na na na na na na na band-wiiiiidth…)
UPDATE: Alan has made a follow up video covering digital scopes as well — check it out:
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Python for Microcontrollers — The need for speed, PewPew, Odroid C2, and more! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit
Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !
BTW – I posted a followup video which answers a few questions I received from this video, plus presents some of the considerations for using a digital scope on this same signal. http://www.youtube.com/watch?v=IcrnXRbkLpc