In case folks don’t know about the “El Cheapo Special” - you can make very respectable 2GHz passive scope probes with 150ps rise times out of RG-174 coax cable and 1k resistors.
Clip the cable in half, solder the core to the 1k resistor, and the other end of the 1k resistor to the signal you want to probe.
Solder the shield braid to board GND.
50ohm terminate your scope, set probe amplification to 20x, and voila!
Excellent tip recommended both by Paul Horowitz (Art of Electronics) and Howard Johnson (High Speed Digital Design). Works like a charm!
amelius
Is there any open source DIY project to relatively cheaply measure the analog performance of USB 3.1 (10Gbit/s) signals?
Clip the cable in half, solder the core to the 1k resistor, and the other end of the 1k resistor to the signal you want to probe.
Solder the shield braid to board GND.
50ohm terminate your scope, set probe amplification to 20x, and voila!
Excellent tip recommended both by Paul Horowitz (Art of Electronics) and Howard Johnson (High Speed Digital Design). Works like a charm!