Agreed, scope would definitely be better. The Fluke 189 manual claims it can capture transients as short as 250 uS, so I figured it should at least handle lower frequency signals OK.
Of course it says "with degraded accuracy", so not sure if that means +/- 10% or +1000/-99%...
In one of my first jobs out of school I had been working mostly on digital circuitry but got tasked to "go figure out how to fix the noise in that satellite receiver design". Tried to measure the 4 GHz signal coming down from the dish with a scope and a cheap probe, which didn't work anywhere near as well as I expected. Those cheap jumper cables don't work at 4 GHz either. At least I amused the RF guys for a while.
Last edited by bridgman; 02/13/15 01:40 AM.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8
| 
