Making Basic Measurements

Resolving Signals of Equal Amplitude

5.Decrease the video bandwidth to 10 kHz, by pressing Video BW, 10, kHz. Two signals are now visible as shown in Figure 1-7. Use the front-panel knob or step keys to further reduce the resolution bandwidth and better resolve the signals.

Figure 1-7 Resolving Signals of Equal Amplitude After Reducing the Video Bandwidth

 

As the resolution bandwidth is decreased, resolution of the individual

 

signals is improved and the sweep time is increased. For fastest

 

measurement times, use the widest possible resolution bandwidth.

 

Under factory preset conditions, the resolution bandwidth is “coupled”

 

(or linked) to the center frequency.

 

Since the resolution bandwidth has been changed from the coupled

 

value, a # mark appears next to Res BW in the lower-left corner of the

 

screen, indicating that the resolution bandwidth is uncoupled. (For

 

more information on coupling, refer to the Auto Couple key description

 

in the Agilent Technologies EMC Analyzers User’s Guide.)

 

To resolve two signals of equal amplitude with a frequency separation of

NOTE

 

200 kHz, the resolution bandwidth must be less than the signal

 

separation, and resolution of 100 kHz must be used. The next larger

 

filter, 300 kHz, would exceed the 200 kHz separation and would not

 

resolve the signals.

Chapter 1

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Agilent Technologies E7404A, E7405A, E7402A, E7403A, E7401A manual Or linked to the center frequency

E7402A, E7405A, E7404A, E7401A, E7403A specifications

Agilent Technologies, a leader in test and measurement solutions, offers a range of spectrum analyzers designed to meet the evolving demands of the electronics industry. The E7403A, E7401A, E7404A, E7405A, and E7402A are prominent models that embody advanced features and technologies, enhancing performance, accuracy, and user experience.

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