u/PhilosopherForeign46

Hi! I'm trying to implement this IC in my board. I don't know much about RF routing, but I thought that for impedance matching you needed the trace with a specific distance to ground, which should be constant.

Or that's what I thought, because it's clear that im wrong and there's something that im missing

Can someone explain why it's done this way? Thanks!

Hi! Im restoring this 190e, and while doing a brake test (not successful I know, needed to break in pads) I noticed a strange sound. What could it be? Should I worry? How can i fix it? Thanks a lot guys

Its a 190E W201 M102.961 from 1983, EU model.