Specifications

18 Chapter 2
Measuring Multiple Signals
Resolving Signals of Equal Amplitude
Measuring Multiple Signals
Figure 2-7 Unresolved Signals of Equal Amplitude (ESA)
Step 4. Change the resolution bandwidth (RBW) to 100 kHz so that the RBW
setting is less than or equal to the frequency separation of the two
signals:
Press
BW/Avg, Res BW, 100, kHz.
Notice that the peak of the signal has become flattened indicating that
two signals may be present.
Step 5. Decrease the video bandwidth to 10 kHz:
Press
Video BW, 10, kHz.
Two signals are now visible as shown with the ESA on the left side in
Figure 2-8 and the PSA on the right side. Use the front-panel knob or
step keys to further reduce the resolution bandwidth and better resolve
the signals.
Figure 2-8 Resolving Signals of Equal Amplitude (ESA left, PSA right)