Agilent Technologies X Series Manual
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Agilent Technologies X Series Manual

Agilent Technologies X Series Manual

Signal analyzer
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Agilent X-Series
Signal Analyzer
This manual provides documentation for the
following X-Series Analyzer:
CXA Signal Analyzer N9000A
N9000A CXA Functional
Tests

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Summary of Contents for Agilent Technologies X Series

  • Page 1 Agilent X-Series Signal Analyzer This manual provides documentation for the following X-Series Analyzer: CXA Signal Analyzer N9000A N9000A CXA Functional Tests...

  • Page 2: Safety Notices

    Notices © Agilent Technologies, Inc. 2006 - 2008 Manual Part Number licensed as “Commercial computer soft- ware” as defined in DFAR 252.227-7014 N9000-90017 No part of this manual may be reproduced (June 1995), or as a “commercial item” as None...
  • Page 3 This Agilent technologies instrument product is warranted against defects in material and workmanship for a period of one year from the date of shipment. During the warranty period, Agilent Technologies will, at its option, either repair or replace products that prove to be defective.

  • Page 5: Table Of Contents

    Contents 1. Functional Tests Functional Test Versus Performance Verification ....... . . 8 Contents of this Document .
  • Page 6 Contents...

  • Page 7: Functional Tests

    Functional Tests Functional tests are tests of various instrument parameters that give a high degree of confidence that the analyzer is operating correctly. They are recommended as a check of analyzer operation for incoming inspection or after a repair. Measurement uncertainty analysis is not available for functional tests, and the analyzer is checked against limits that are wider than the published specifications.

  • Page 8: Functional Test Versus Performance Verification

    Functional Tests Functional Test Versus Performance Verification Functional Test Versus Performance Verification Functional tests use a minimum set of test equipment to check a much smaller range of parameters (and a limited number of data points for each parameter) than do performance verification tests. Functional tests use limits that are wider than the published specifications;...

  • Page 9: Contents Of This Document

    Functional Tests Contents of this Document Contents of this Document This chapter includes the following: • “Before Performing a Functional Test” on page 10 (what to do first). • “Test Equipment” on page 11 (a list of the equipment required for all of the tests). Subsequent chapters describe the following Functional Tests: •...

  • Page 10: Before Performing A Functional Test

    Functional Tests Before Performing a Functional Test Before Performing a Functional Test 1. Ensure that you have the proper test equipment. 2. Switch on the unit under test (UUT) and let it warm up (in accordance with warm-up requirements in the instrument specifications).

  • Page 11: Test Equipment

    Functional Tests Test Equipment QUIPMENT The table below summarizes the test equipment needed to perform all of the functional tests. Alternate equipment model numbers are given in case the recommended equipment is not available. If neither the recommended nor the alternative test equipment are available, substitute equipment that meets or exceeds the critical specifications listed.
  • Page 12 Functional Tests Test Equipment Analyzer Alternate Recommended Option Item Critical Specifications Agilent Agilent Model Model Cable, BNC (3 required) 120 cm (48 in.) BNC cable 10503A Signal Source Synthesized Sweeper Frequency: 10 MHz to 26.5 GHz 83630B, Harmonic level: < − 40 dBc 83640B, Amplitude range: 10 to −...
  • Page 13 Functional Tests Test Equipment Chapter 1...

  • Page 14: Displayed Average Noise Level (Danl)

    Displayed Average Noise Level (DANL) Test Limits (with 0 dB input attenuation) Table 2-1 on page 17 for values. The Displayed Average Noise Level (DANL) of the signal analyzer is measured across a 10 kHz frequency span at several center frequencies. The analyzer input is terminated into a 50Ω load. A test is performed to assure the measurement is not performed in the presence of a residual response.

  • Page 15: Procedure

    Displayed Average Noise Level (DANL) Procedure Procedure 1. Configure the equipment as shown in Figure 2-1. 2. Press on the analyzer. Mode Spectrum Analyzer Mode Preset 3. Set up the signal analyzer by pressing: , 10, FREQ Channel Center Freq , select Input/Output, RF Input RF Coupling...
  • Page 16 Displayed Average Noise Level (DANL) Procedure 13. Repeat step 7 through step 12 to fill in the remainder of Table 2-1 for your analyzer frequency range. Table 2-1 Displayed Average Noise Level (DANL) Results Measured Average Noise Level Normalized Average Noise Level/(1 Test Limits Center Frequency (dBm)
  • Page 17 Displayed Average Noise Level (DANL) Procedure Chapter 2...

  • Page 18: Frequency Readout Accuracy

    Frequency Readout Accuracy Test Limits Frequency Readout Accuracy is equivalent to the following equation: ± × × × 0.25% span 5% RBW 2 Hz horizontal resolution Table 3-1 on page 20 for actual values. The frequency readout accuracy is measured in several spans and center frequencies that allow both internal analyzer synthesizer modes and prefilter bandwidths to be tested.

  • Page 19: Procedure

    Frequency Readout Accuracy Procedure Procedure 1. Configure the equipment as shown in Figure 3-1.. Confirm the analyzer’s built-in auto alignment has been performed within the past 24 hours. 2. On the synthesized sweeper, press , then set the controls as follows: PRESET , 1505, FREQUENCY...

  • Page 20: Second Harmonic Distortion (Shd)

    Second Harmonic Distortion (SHD) Test Limits Applied Frequency Distortion Mixer Level 40 MHz –20 dBm < –55 dBc a. Mixer Level = Input Level - RF Attenuation This test checks the second harmonic distortion of the signal analyzer by tuning to twice the input frequency and examining the level of the distortion product.
  • Page 21 Second Harmonic Distortion (SHD) Figure 4-1. Second Harmonic Distortion Test Setup Chapter 4...

  • Page 22: Procedure

    Second Harmonic Distortion (SHD) Procedure Procedure 1. Configure the equipment as shown in Figure 4-1. 2. Press on the signal analyzer and Preset the synthesized Mode Spectrum Analyzer Mode Preset sweeper. 3. Set up the synthesized sweeper by pressing: , 40, Frequency , –10, Amplitude...
  • Page 23 Second Harmonic Distortion (SHD) Procedure Chapter 4...

  • Page 24: Amplitude Accuracy At 50 Mhz

    Amplitude Accuracy at 50 MHz Test Limits Amplitude Accuracy should remain within1.13 dB of the measured source value across the range of source levels and changes in resolution bandwidth. The Preamp (option P03, P07) should remain within ±1.3 dB of measured values. A synthesized sweeper is used as the signal source for the test.
  • Page 25 Amplitude Accuracy at 50 MHz Figure 5-1. Amplitude Accuracy Test Setup Chapter 5...

  • Page 26: Procedure

    Amplitude Accuracy at 50 MHz Procedure Procedure 1. Zero and calibrate the power meter. 2. Configure equipment as shown in Figure 5-1., with the power splitter connected directly to the signal analyzer input through the adapter. CAUTION To minimize stress on the test equipment connections, support the power sensor. 3.
  • Page 27 Amplitude Accuracy at 50 MHz Procedure i. Calculate the signal amplitude accuracy error using the following equation, and record the results under the Amplitude Accuracy Error column: Amplitude Accuracy Error = Meas_amp − Power_meter Table 5-1. Amplitude Accuracy Results Nominal Attenuation Span Measured...

  • Page 28: Testing Preamp Option (P03, P07)

    Amplitude Accuracy at 50 MHz Testing Preamp Option (P03, P07) Testing Preamp Option (P03, P07) Instruments containing Options P03, P07 must have the preamp function turned on and tested. Procedure 1. On the analyzer, press AMPTD Y Scale More Internal Preamp Low Band 2.
  • Page 29 Amplitude Accuracy at 50 MHz Testing Preamp Option (P03, P07) Chapter 5...

  • Page 30: Frequency Response (Flatness)

    Frequency Response (Flatness) Test Limits Frequency Range Limit Relative to 50 MHz 100 kHz to 3.0 GHz ±1.5 dB > 3.0 GHz to 7.5 GHz ±2.5 dB The frequency response test measures the signal analyzer’s amplitude error as a function of the tuned frequency.
  • Page 31 Frequency Response (Flatness) Figure 6-1 Frequency Response Test Setup Chapter 6...

  • Page 32: Procedure

    Frequency Response (Flatness) Procedure Procedure 1. Zero and calibrate the power meter and power sensor as described in the power meter operation manual. 2. Configure the equipment as shown in Figure 6-1. NOTE Connect the power splitter to the signal analyzer input using the appropriate adapter. Do not use a cable.
  • Page 33 Frequency Response (Flatness) Procedure 19. Compare the value of Flat to the test limit. Norm Table 6-1 Frequency Response (Flatness) Results Analyzer Power Meter Meas Error Flatness Flatness Error Amplitude Measurement Normalized Test Limits Center to 50 MHz (dB) Frequency Meas Power Meas...

  • Page 34: Frequency Response (Flatness), Preamp On

    Frequency Response (Flatness), Preamp On Test Limits Frequency Range Limit Relative to 50 MHz 100 kHz to 3.0 GHz ±2.0 dB > 3.0 GHz to 7.5 GHz ±3.0 dB The frequency response test, with preamplifier on, measures the signal analyzer’s amplitude error as a function of the tuned frequency.
  • Page 35 Frequency Response (Flatness), Preamp On Figure 7-1 Frequency Response Test Setup Chapter 7...

  • Page 36: Procedure

    Frequency Response (Flatness), Preamp On Procedure Procedure 1. Zero and calibrate the power meter and power sensor as described in the power meter operation manual. 2. Configure the equipment as shown in Figure 7-1. NOTE Connect the power splitter to the signal analyzer input using the appropriate adapter. Do not use a cable.
  • Page 37 Frequency Response (Flatness), Preamp On Procedure − Meas (Meas @ 50 MHz) Error Error 18. Enter the computed flatness error value into the Flat column of Table 7-1. Norm 19. Compare the value of Flat to the test limit. Norm Table 7-1 Frequency Response (Flatness) Results Analyzer...

  • Page 38: Scale Fidelity

    Scale Fidelity Test Limits The scale fidelity error will be ≤ ±1.0 dB with ≤ −10 dBm at the mixer. This test checks the scale fidelity of the instrument by maintaining a constant reference level and measuring signals of different amplitudes over most of the display range. This test sets the input attenuator to 10 dB and the Reference Level to 0 dBm.
  • Page 39 Scale Fidelity Figure 8-1. Scale Fidelity Setup NOTE Averaging is used for all measurements to improve repeatability and reduce measurement uncertainty. Chapter 8...

  • Page 40: Procedure

    Scale Fidelity Procedure Procedure 1. Configure the equipment as shown in Figure 8-1. 2. Preset the Source and press on the analyzer. Mode Spectrum Analyzer Mode Preset 3. Set up the synthesized sweeper by pressing: , 50, Frequency , +5, Amplitude , On RF On/Off...
  • Page 41 Scale Fidelity Procedure Table 8-1 Scale Fidelity Results Minimum Marker Delta Value Maximum External Attenuator Setting (dB) (dB) (dB) Reference –11.0 –9.0 –21.0 –19.0 –31.0 –29.0 –41.0 –39.0 –51.0 –49.0 Chapter 8...
  • Page 42 See also individual functional tests performance verification tests vs functional tests second harmonic distortion test tests. See functional tests URL (Agilent Technologies) Index...
  • Page 43 Index Index...

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N9000a cxa

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