Technical data

74 Chapter 5
Spectrum Analyzer
Making a Basic Measurement
Spectrum Analyzer
Viewing a Signal
1. Select the spectrum analyzer mode. Press Mode, Spectrum Analyzer.
2. Preset the analyzer: Press Mode Preset.
3. Connect the analyzer’s rear panel REF OUT (10 MHz) to the
front-panel input.
Setting Center Frequency, Span, Attenuation, and Reference Level.
1. Set the center frequency to 30 MHz: Press FREQ Channel, Center
Frequency
, 30, MHz.
2. Set the Span to 50 MHz: Press SPAN X Scale, 50, MHz.
3. Adjust the attenuation to 20 dB: Press AMPTD Y Scale, Elec Atten, 20,
dB.
4. Adjust the reference level (if the peak of the 10 MHz signal
component is not visible): Press
AMPTD Y Scale, Ref Level, 10, dBm.
For more information on this, refer to “Changing Reference Level” on
page 75.
The 10 MHz reference signal spectrum appears on the display, as
shown in Figure 5-1.
Figure 5-1 10 MHz Internal Reference Signal and Associated Spectrum