User manual

RIGOL Chapter 2 Front Panel Operation
User’s Guide for DSA700 Series
2-60
Demod
Press Demod at the front panel to enter the demodulation setting menu. Both AM
and FM demodulations are available in this device.
Demod
Set the demodulation type to AM or FM; or disable the demodulation function. The
default is Off.
Key Points:
 The system will enable a marker automatically, place it at the center
frequency and perform AM (or FM) demodulation on this frequency point after
you enable AM (or FM) demodulation.
 DSA700 provides earphone jack and the demodulated signal can be output in
audio frequency (AF) mode through the earphone. The frequency and
intensity of AF denotes the frequency and amplitude of the signal respectively.
Demod Setup
1. Earphone
Set the status of the earphone. When it is on, the demodulated signal can be
heard through the earphone during the demodulation. By default, it is Off.
2. Volume
Set the volume of the earphone.
3. Demod Time
Set the time for the analyzer to complete a signal demodulation after each
sweep. If Earphone is set to "On", you will hear the demodulated signal
through the earphone during the demodulation. You can use the numeric keys,
knob or direction keys to modify this parameter. For more details, please refer
to "
Parameter Setting".