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The figure 3-4 fully shows the relationship between the Central Frequency and
Reference level. The box in the figure shows a display of the analyzer. Changing the
Center Frequency changes the location of horizontal line on the display. Changing
the Reference level changes the vertical position of the signal on the display. If you
increase the span, the scope of frequency shown horizontally on the display will
increase.
[Figure 3-4] The Relationship Between Frequency and Amplitude
7.
Please set the marker.
The marker function measures the frequency and amplitude of a signal and
places a diamond-shaped marker on the maximum value of the signal. If you
intend to activate the marker, please press the Marker key. The Normal button
will be highlighted and the marker value will be displayed in the active function
block. Please place a marker on the maximum value of a signal by turning the
scroll knob. Also, you can automatically place a marker on the peak of the trace
by using the PEAK SEARCH key.
The analyzed result of the marker frequency and amplitude will show up on an
activated function block, and on the upper right hand corner of the display. If
you are determining the amplitude of a signal, please check the analyzed result
of the marker.
When other functions are activated, you can find the marker frequency and
amplitude on the analyzed result of the marker in the upper right hand corner of
the display.
3-6. Summary of Measurement
1.
Please press
SYSTEM >> Power On/Preset >> Preset Type >> Factory
. Please
press a PRESET key.
2.
Turn on the 80 MHz standard signal generated the inside of the spectrum
analyzer by pressing
I/O DETECT >> Ref Out (On).
3.
Set the Center Frequency to
80 MHz
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