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SIGLENT
User Manual 39
This operation differs from the Ref Level function in the AMPT menu. This parameter has no influence
on the reference level of the analyzer.
Table 2-25 Reference level under normalization
Parameter
Explanation
Default
0 dB
Range
-200 dB ~ 200 dB
Unit
dB
Knob Step
1 dB
Direction Key Step
10 dB
2.2.7.8 Norm Ref Pos
Adjust the vertical position of the normalization reference level on the screen by adjusting the reference
position when normalization is enabled.
● The function of this menu is like that of Norm Ref Level. When it is set to 0%, the normalization
reference level is displayed at the bottom of the screen grid and at the top when it is set to 100%.
Table 2-26 TG reference position under normalization
Parameter
Explanation
Default
100%
Range
0 ~ 100%
Unit
100%
Knob Step
1%
Direction Key Step
10%
2.2.8 Demod
Press Demod at the front panel to enter the demodulation setting menu. Both AM and FM
demodulations are available on the analyzer.
2.2.8.1 Demod (AM/FM)
Set the demodulation type to AM or FM or off. The default is off.
● The analyzer features an 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.
● A marker would be enabled automatically, place it at the desired frequency and set a demod time.
The analyzer would demod at the marker frequency for the demod time, and then performs a normal
sweep.
● Zero span and linear scale type amplitude can be used to see the time domain waveform of the
modulated signal.
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