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R3267 Series Spectrum Analyzer Operation Manual (Vol.1)
2.2.9 Zooming the Frequency Domain
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2.2.9
Zooming the Frequency Domain
The analyzer has a function that allows you to display a part of magnified upper screen trace on the lower
screen in the frequency domain.
This section describes the zoom function in the frequency domain.
Measurement conditions: The target of the measurement below is a signal whose characteristics consist
of an output frequency of 100 MHz, a level of -10 dBm, a modulation frequen-
cy of 10 kHz and an AM modulation factor of 3%.
Use appropriate parameter values when making the measurements in the ex-
ample shown below.
Setup
1.
Connect the unit under test as shown in Figure 2-49.
Figure 2-49 Measuring AM Signal in Separate Screen Mode
Power on
2.
Turn the analyzer and the signal generator power on.
Setting the signal generator
This prepares the signal generator for output.
3.
Set the frequency to 100 MHz; the level to -10 dBm; the modulation frequency
to 10 kHz; AM modulation factor to 3% and the output to the ON position.
Initialization
This resets the current settings to the factory defaults or user-defined presets.
4.
Press SHIFT and CONFIG(PRESET).
This sets the analyzer to its presets values.
Setting the measurement conditions
This changes the analyzer settings so the input signal is displayed more clearly.
5.
Press FREQ,1, 0, 0 and MHz.
A center frequency of 100 MHz is set.