Metrix DOX 2 Series, User Manual

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Kit Demo for METRIX Oscilloscopes 19
Demo: with:
DOX2025 DOX2040 DOX2100 DOX2xxx
Test Signal no. 8: Square wave, low level, noisy
Nature 1 square wave of very low amplitude and very noisy
Specs 5mV < Vpp < 30mV (depending on filtering)-F

1kHz
Oscilloscope Settings 200 or 500µs/div.-MAIN = 2.5 or 5mV/div.
Trigger
on MAIN, 50% of Vpp
Modes nothing at first, then 100kHz low-pass filtering
Objectives
Triggering and display for a noisy signal
Using the Digital filters
a) Adjust the oscilloscope so as to display the signal approximately.
Attention, with this type of signal, "Autoset" operation may be aleatory.
The noisy signal is of low amplitude.
b) The use of a 100 kHz digital low-pass filter makes it possible to analyze the signal without the noise.