That measurement was with "alligator clips". I was interested in the bandwidth with the 1x probes. The 1x probes will have some capacitance that will lower the bandwidth.
If we have to use crocodile clips to get the most from this thing then there should be a way to get better results by adding a small amount of capacitance and limiting the bandwidth to something the system can handle.
The alligator clips represent the type of "probe" I am likely to employ in my use of this tool, as my primary use will be in troubleshooting contemporary electronic engine control system sensors and control devices in automobiles, motorcycles and almost any modern ICE powered equipment (even lawn mowers). Alligator clips, back-probe needles, and insulation piercing clips such as these:
On such machinery, and other than at board level within the "black box" engine and power-train control modules, there are mo pretty little test points to which one could connect a formal X1 or X10 oscilloscope probe--the best one can do is attempt to find something shiny to clip onto and when that fails you grab the proper color wire and punch a hole through the insulation (a spray of carburetor cleaner to degrease and a small drop of silicone sealer will plug it up when you're done).
For the most part the signal voltages are "highish", at 5 or 12 V typically; and signal frequencies max out at 1 to
maybe 5 kHz. Consider that even with a 10 cylinder 4-stroke/cycle engine running 10,000 RPM (an unlikely find); spark, fueling, and monitor events occur only 50,000 times/
minute; just 833 events per second.
Other uses such as monitoring voltage drops, start-up current draws and the like occur over multiples of minutes. Here are some traces i've captured over the years:
Testing an ignition coil (primary waveform at 0.054" and 15 mm plug gaps):
2003 Mustang GT triple-strike plug firing at idle (reduces NOx emissions):
1998 Mercedes SL500 IR keyless entry receiver output of keyfob "unlock" command:
1998 SL500 RF keyless entry receiver output, lock and unlock:
Only Mercedes knows why they felt both IR and RF controls were needed--they are incapable of doing anything normally, like lug bolts requiring an alignment tool to mount a wheel, instead of studs and nuts. Worst car I ever owned, gobs of fun to drive, just don't think too much about what plastic thing is going to deteriorate next,
2003 Mustang GT narrowband oxygen sensor output at 2000 RPM:
Suzuki Burgman 400 headlamp startup current w/a cheap Asian 5-pin DIN relay (captured using a MasTech clamp-on DC current probe):
Same with a quality NTE relay having reverse EMF protection:
Burgman 400 ignition ON current:
2009 Tacoma throttle position sensor, from closed to WOT:
2009 Tacoma, on-board 120 VAC inverter (so-called "modified sine wave" w/a 60W load):
My point is that there is a whole bunch of useful work one can do with an oscilloscope that does not involve single digit mV levels and MHz frequencies.
I think this silly little puppy may be just the ticket for much of that sort of work.
Did I mention it's as cute as a bugs ear?
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Not related to any of the above, but nonetheless a novel use of an oscilloscope in automotive diagnosis/repair, here's an analysis of an audio file I asked a fellow who was questioning the accuracy of his mustang Cobra's tachometer to send me. The FFT analysis revealed a predominate frequency (a loud exhaust note) of 154 Hz.
154 /4 [exhaust pulses per revolution for a V8] * 60 = 2310 RPM, just what his tach was reporting: