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R3267 Series Spectrum Analyzer Operation Manual (Vol.1)
2.2.2 Displaying Spectrums and Operating the Markers
2-22
17. Press Delta Marker.
The delta marker is displayed, and the differences (relative values) between the
normal marker and delta marker frequency and level are displayed
18. Move the marker to the -3 dB point using the data knob while looking at the level
indication in the marker area and set it as precisely as possible (an exact setting
may not be possible due to resolution limitations).
The frequency difference (relative value) between the peak point and a point 3 dB
levels lower is displayed in the marker area.
Figure 2-24 Frequency Difference Between the Peak Point and a Point 3 dB Levels Down
19. Next, move the marker to a point 60 dB levels down from the peak using the data
knob.
The display in the marker area is the frequency difference between the peak point
and a point 60 dB levels down from the peak.
Figure 2-25 Frequency Difference Between the Peak Point and a Point 60 dB Levels Down