Basic Measurement Examples
R&S
®
ESR
91Getting Started 1316.3749.02 ─ 09
Figure 7-5: Measurement of two equally-leveled RF sinusoidal signals with a resolu-
tion bandwidth which is larger than their frequency spacing
Note: Reducing the resolution bandwidth. The resolution bandwidth (RBW)
can be reduced again by turning the rotary knob counterclockwise, thus yield-
ing a higher frequency resolution.
6. Set the resolution bandwidth to 1 kHz. To do so, in the bandwidth menu, press
the "Res BW Manual" softkey and enter 1 kHz.
The two generator signals are shown with high resolution. However, the
sweep time becomes longer. At smaller bandwidths, the noise display decrea-
ses simultaneously (10 dB decrease in noise floor for a decrease in bandwidth
by a factor of 10).
Measuring Signal Spectra with Multiple Signals
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