DSO203 GCC APP - Community Edition (2.51+SmTech1.8+Fixes)

wotsac · August 14, 2015, 10:33pm

Awesome. That’s what I thought the Spectrograph function was for. But when I used I had always gotten a vomit of colors and figured it was a different type of spectrograph than what I was hoping for. Anyway, it works. I will need to tinker with this a bit and delve into the manual.

Thanks!

~~Wildcat:~~

~~wotsac:~~

I don’t believe it can be done but just in case I missed something – Is there a way to plot frequency over time (ie, a histograph?) with Wildcat’s firmware?

It’d be cool if you could take the frequency of some input and represent it as a graph vs time. Sometimes it’s easier to see glitches this way-overshoots and undershoots from a sensor- vs. just looking at the waveforms.

The spectrograph function does this, shift Ch D input to SPEC. Ch A or B must be turned on, with Ch A

having precedence over B. This plots frequency on the vertical axis against time on the horizontal axis,

with changes in color representing the intensity. Change frequency range with the time/div control, which

will also control the horizontal scan speed up to a certain point. Intensity range can be varied with the FFT

sensitivity control (log > auto > manual from 0db to +42 db).

Time span for one screen varies from about a few seconds at the highest scan rates down to perhaps several

minutes for very slow time bases. If device is not triggered with a signal, AUTO timebase mode can be used

to display background.

An amplitude envelope can also be superimposed by pressing center right toggle while menu is on SPEC. See

the user guide for more info.