Agilent Technologies 8720ET, ES, 8722ET, 8719ET quick start Measuring Passband Flatness or Ripple

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Quick Start: Learning How to Make Measurements

Learning to Make Transmission Measurements

Measuring Passband Flatness or Ripple.

Passband ﬂatness (or ripple) is the variation in insertion loss over a speciﬁed portion of the passband.

Continue with the following steps to measure passband ﬂatness or ripple.

1.Press Save/Recall (if necessary, scroll to the desired ﬁle using the and front panel keys). Press RECALL STATE to recall the error-corrected transmission measurement that has no markers engaged.

2.Press Marker and turn the front panel knob to move marker 1 to the left edge of the passband.

3. Press Δ MODE MENU Δ REF = 1 to change the marker 1 position to the delta reference point.

4.Press MARKER 2 and turn the front panel knob to move marker 2 to the right edge of the passband.

5.Press Marker Fctn MARKER MODE MENU , then toggle MKR STATS on OFF to ON.

The analyzer calculates the mean, standard deviation, and peak-to-peak variation between the Δ reference marker and the active marker, and lists the results in the upper-right corner of the display. The passband ripple is automatically shown as the peak-to-peak variation between the markers.

Figure 2-7 Example Measurement of Passband Flatness or Ripple

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Chapter 2

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Contents Part Number Print Date February Installation and Quick Start GuidePage Certiﬁcation General Safety Considerations How to Use This Guide Documentation Map Contents Installing Your Analyzer Introduction Verify the Shipment Item Number Part Number Description Analyzer Front Panel Familiarize Yourself with the Analyzer Front and Rear PanelsTest Sequence Analyzer Rear PanelMeet Electrical and Environmental Requirements Meet Electrical and Environmental Requirements Conﬁgure the Analyzer To Conﬁgure the Standard Analyzer To Conﬁgure the Analyzer with Printers or Plotters Plotter Port Conﬁgure the Analyzer Thinkjet Deskjet SET Clock To Conﬁgure the Analyzer for Bench Top or Rack Mount Use To Attach Front Handles to the Analyzer Standard Conﬁgure the Analyzer Conﬁgure the Analyzer Verify the Analyzer Operation To View the Installed Options To Initiate the Analyzer Self-Test To Run the Operators Check Service Menu TestsTransmissn To Test the Transmission ModeMeas Reﬂ REV S22 B/R To Test the Reﬂection ModeBack Up the Eeprom Disk Eeprom Backup Disk ProcedureDescription EquipmentBack Up the Eeprom Disk Quick Start Learning How to Make Measurements Quick Start Learning How to Make Measurements Analyzer Front Panel Analyzer Front PanelAnalyzer Front Panel Make a measurement calibration Measurement ProcedureMeasure the device Output measurement resultsDevice Connections for a Transmission Measurement Learning to Make Transmission MeasurementsConnections for a Thru Calibration Standard Perform a measurement calibrationExample Measurement of Insertion Loss Press Return Define DISK-SAVE Example Measurement of 3 dB Bandwidth Measuring Other Transmission CharacteristicsExample Measurement of Out-of-Band Rejection Measuring Out-of-Band RejectionExample Measurement of Passband Flatness or Ripple Measuring Passband Flatness or RippleLearning to Make Reﬂection Measurements = Γ= 1 + ρ / 1 − ρ Connections for Reﬂection Measurements Make a measurement calibration 10 Example Measurement of Return Loss Measuring Return Loss11 Example Measurement Title Measuring Reﬂection Coefﬁcient Measuring Other Reﬂection Characteristics13 Example Standing-Wave-Ratio Measurement Trace Measuring Standing Wave Ratio SWRMeasuring S11 and S22 or Reﬂection in a Polar Format Measuring S11 and S22 or Reﬂection in a Smith Chart Format 15 Example Impedance Measurement Trace If You Encounter a Problem Power-Up ProblemsIf the analyzer display does not light Data Entry Problems If there is no RF signal at the front-panel portNo RF Output If You Encounter a Problem European Field Operations Agilent Technologies Sales and Service OfﬁcesIndex Index

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