Agilent Technologies PN 8510-16 manual Flatness-Correction Operation

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Flatness-Correction Operation

The basic setup procedure to obtain flat test port output power is illustrated in Table 1. To simplify the execution of the procedure, the front panel hardkeys are enclosed in [brackets]. The softkeys are enclosed in {braces}. Table 2 provides the pro- cedure for setting up the power meter. The net- work analyzer should be reset before performing any procedures. The flatness-correction calibration can be performed in step, ramp, or frequency list sweep mode. Figure 2 illustrates test port power versus frequency with and without flatness correc- tion using an 85107B measurement system.

When the flatness correction is enabled in an 8510C measurement system the analyzer’s Power Source 1 softkey controls the test port power level. The source and test set used will determine the available test port power range.

The maximum leveled power the source can out- put at different frequency spans is indicated in Table 3. Once the flatness correction is enabled, the test port power level must be set within the power range presented in Table 4 for common source/test set combinations.

Figure 2. Comparison of test port power without flatness correction (channel 1) and with flatness correction (channel 2)

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Contents Agilent PN Controlling Test Port Output Power Flatness Uncorrected Power Corrected Power Output PowerIntroduction System Configuration 85107B Measurement SystemFlatness-Correction Operation Flatness-correction calibration procedure Agilent E4418B power meter setup Set up the 437B emulation on the power meter83620B 83621B 83623B 83623L 83631B 83651B FrequencyOperational Considerations Power control with flatness correctionCalibration time When to recalibrate Verifying a flatness-correction calibrationUsing test port 1 calibrations on test port Absolute output power measurements with flatness correction Activate the test port power flatness-correctionConnect the DUT Measure the absolute output power Practical Application ExamplesSet up a b2 measurement and connect a thru Connect the amplifier and measure the absolute output powerAdjust the display Increase power to find the 1 dB gain compression pointYour Advantage Our PromiseOnline Assistance