6 ms·
When was the last time you heard of a signal in a PC trace degrading and then getting much better?!?!!??!!!! So much better that when previously tested that tr
by hga 12y ago
When was the last time you heard of a signal in a PC trace degrading and then getting much better?!?!!??!!!! So much better that when previously tested that trace wasn't deemed suspicious?
- kabdib 12y agoNot a PC, but a good story about a PDP-10 back-in-the-day: http://www.catb.org/jargon/html/magic-story.html http://www.catb.org/jargon/html/magic-story.html
- nsrango 12y agoLook at load line impedances. The effective output impedance of a transmission line depends on the fraction of wavelengths of waveguide transmit the wave. At any half wavelength, the output and input have equal impedances. If the output were matched to the input but no the line you get the exact effect described. http://en.wikipedia.org/wiki/Transmission_line#Half_wave_length http://en.wikipedia.org/wiki/Transmission_line#Half_wave_len...