B. Spectrogram Demonstration
Spectrograms are useful for monitoring
slowly changing RF events, and for
identifying low amplitude signals that are
too subtle for the eye to catch.
This exercise demonstrates how the
oscilloscope spectrogram shows what
is happening in the spectrum over time,
and shows how to look at the Spectrum
Slices using the Multipurpose a control.
1. Follow step 1 to 3 in the previous
exercise to connect the RF channel to the
demonstration board.
2. Press the Mode button on the
Demonstration board until the
Spectrogram LED is lit.
3. Press Default setup front-panel button.
4. Press the RF front panel button to turn
on RF channel.
5. Press the Freq/Span front-panel button.
6. Press the R to Center side-bezel button
to set the Center Frequency to the
frequency of the reference marker.
7. Use Multipurpose b to set span to
10 MHz.
8. Press the RF front panel button to turn
on the RF menu.
9. Press the Spectrogram lower-bezel
button.
10. Press the Display On side-bezel button
to turn on the spectrogram.
www.tektronix.com/mdo3000 37
MDO3000 Series Oscilloscope
Demonstration Guide
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