Hackaday (unofficial) November 2, 2023 12:00pm Homebrew TEM Cell Lets You EMC Test Your Own Devices #toolhacks #copper #electromagneticcompatibility #emc #fr4 #impedance #lineimpedancestabilizationnetwork #lisn #spactrumanalyzer #tem #testing #transvereelectromagneticcell #hackaday posted by pod_feeder_v2 Homebrew TEM Cell Lets You EMC Test Your Own Devices Submitting a new device for electromagnetic compatibility (EMC) testing seems a little like showing up for the final exam after skipping all the lectures. You might get lucky and pass, but it reall…
Hackaday (unofficial) August 28, 2023 6:00am When Does Impedance Matching a PCB Trace Become Unavoidable? #hardware #science #impedance #impedancematching #pcb #pcbrouting #route #hackaday posted by pod_feeder_v2 When Does Impedance Matching A PCB Trace Become Unavoidable? A common joke in electronics is that every piece of wire and PCB trace is an antenna, with the only difference being whether this was intentional or not. In practical terms, low-frequency wiring is…
Hackaday (unofficial) August 17, 2023 3:00am The Dipole Antenna Isn’t as Simple as it Appears #radiohacks #antenna #bandwidth #dipole #frequency #impedance #reactive #resistive #vna #wavelength #hackaday posted by pod_feeder_v2 The Dipole Antenna Isn’t As Simple As It Appears Dipole antennas are easy, right? Just follow the formula, cut two pieces of wire, attach your feedline, and you’re on the air. But then again, maybe not. You’re always advised to cut t…
Hackaday (unofficial) September 27, 2022 6:00am Measuring Impedance Virtually #toolhacks #impedance #ltspice #hackaday posted by pod_feeder_v2 Measuring Impedance Virtually We always enjoy a [FesZ] video and we wonder if the “Z” stands for impedance? That’s the topic of his latest video series: measuring impedance with LTSpice. Of course, he also doe…
Hackaday (unofficial) April 5, 2022 3:00pm Hacker Dictionary: RS-485 Will Go the Distance #featured #howto #skills #differentialpair #differentialsignaling #impedance #max485 #modbus #multidropbus #rs485 #hackaday posted by pod_feeder_v2 Hacker Dictionary: RS-485 Will Go The Distance RS485 is a communication standard that should be part of the advanced hardware hacker’s arsenal; it’s not commonly encountered, but powerful exactly when you need it. It’s a physi…
Hackaday (unofficial) March 19, 2022 3:00pm Impedance Mismatch #hackadaycolumns #rants #impedance #mismatch #music #physics #hackaday posted by pod_feeder_v2 Impedance Mismatch There are a few classic physics problems that it can really help to have a mental map of. One is, of course, wave propagation. From big-wave surfing, through loudspeaker positioning, to quantum mec…