Making Complex Measurements

Demodulating and Listening to an AM Signal

Demodulating and Listening to an AM Signal

The functions listed in the menu under Det/Demod allow you to demodulate and hear signal information displayed on the analyzer. Simply place a marker on a signal of interest, activate AM demodulation, turn the speaker on, and then listen.

Demodulating and Listening to an AM Signal

Example 1:

1.Connect an antenna to the analyzer input.

2.Perform a factory preset by pressing Preset, Factory Preset (if present).

3.Set the Y-Axis Units to dBm by pressing AMPLITUDE, More, Y-Axis Units, dBm.

4.Select a frequency range on the analyzer, such as the range for AM radio broadcasts. For example, the frequency range for AM broadcasts in the United States is 550 kHz to 1650 kHz. Press

FREQUENCY, Start Freq, 550, kHz, Stop Freq, 1650, kHz.

5.Place a marker on the signal of interest. Press Peak Search to place a marker on the highest amplitude signal, or press Marker, Normal and move the marker to a signal of interest. See Figure 2-16.

6.Press Det/Demod, Demod, AM. Use the front-panel volume knob to control the speaker volume.

Figure 2-16 Demodulation of an AM Signal

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Chapter 2

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Agilent Technologies E7403A, E7405A, E7402A, E7404A, E7401A manual Demodulating and Listening to an AM Signal Example
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E7402A, E7405A, E7404A, E7401A, E7403A specifications

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