b...@evoria.net said: > So, I may throw another cap on it, but it seems to be clean down to what I > can measure at the OCXO on my old Tek 455 with an X10 probe.
Another thing to consider when chasing that sort of problem: How much are you picking up with your scope probe and/or its ground wire? The classic home brew better-probe is to use a chunk of 50 ohm coax feeding into scope with a 50 ohm terminator. (You get 2 of them if you cut a readily available connectorized cable in half.) Insert 950 ohms at the probe end to get higher input impedance at the cost of a 20:1 divider. http://www.signalintegrity.com/Pubs/straight/probes.htm It usually requires soldering at the DUT. For me, it also requires a mental shift. You have to think of your scope probe as a consumable rather than something that won't wear out if you take care of it. A chunk of coax will last a long time. Just cut off another 1/2 inch when the end gets too mangled. -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
