Tektronix TTR500 Series Technical Reference Manual
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Tektronix TTR500 Series Technical Reference Manual

Tektronix TTR500 Series Technical Reference Manual

Vector network analyzer. specifications and performance verification.
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TTR500 Series
Vector Network Analyzer
Specifications and Performance Verification
ZZZ
Technical Reference Manual
*P077125500*
077-1255-00

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  • Page 1 TTR500 Series Vector Network Analyzer Specifications and Performance Verification Technical Reference Manual *P077125500* 077-1255-00...
  • Page 3 TTR500 Series Vector Network Analyzer Specifications and Performance Verification Technical Reference Manual www.tek.com 077-1255-00...
  • Page 4 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.

  • Page 5: Table Of Contents

    Table of Contents Table of Contents Important safety information ......................General safety summary..
  • Page 6 Table of Contents TTR500 Specifications and Performance Verification...

  • Page 7: Important Safety Information

    Do not connect or disconnect probes or test leads while they are connected to a voltage source. Use only insulated voltage probes, test leads, and adapters supplied with the product, or indicated by Tektronix to be suitable for the product.

  • Page 8: Service Safety Summary

    Be sure your work area meets applicable ergonomic standards. Consult with an ergonomics professional to avoid stress injuries. Use only the Tektronix rackmount hardware specified for this product. Service safety summary The Service safety summary section contains additional information required to safely perform service on the product. Only qualified personnel should perform service procedures.

  • Page 9: Terms In This Manual

    Important safety information Terms in this manual These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property. Terms and symbols on the product These terms may appear on the product: DANGER indicates an injury hazard immediately accessible as you read the marking.

  • Page 10: Preface

    The VectorVu-PC software version must be version 1.0 or greater. Purpose This manual lists the electrical, mechanical, and environmental specifications, and the certification and compliance statements for the Tektronix TTR500 Vector Network Analyzer (VNA). Also provided are procedures for verifying the performance of the instrument. Documentation This table lists some of the documentation that is available for the TTR500 series products.

  • Page 11: Specifications

    Specifications Specifications All specifications are guaranteed unless labeled Typical. Typical specifications are provided for your convenience. NOTE. Warranted characteristics that are checked in the Performance Verification are marked with a  symbol. The performance limits in this specification are valid for the following conditions: The VectorVu-PC software version is 1.0 or greater.

  • Page 12: Frequency

    Specifications Frequency Frequency range 100 kHz to 6.0 GHz Measurement bandwidth Effective IF bandwidth 1 Hz to 500 kHz Sweep Configurable sweep parameters Sweep time, sweep delay and number of points are configurable. Sweep Delay is the time from end of last frequency point to start of first point of next sweep You can specify sweep delay sequentially—e.g.

  • Page 13: Test Port Levels

    You can perform automatic power calibration with an external power meter. These calibration models are supported: Tektronix USB power meters: PSM 3000, 4000, 5000 series Keysight USB power meters: U848x, U2020, U2000 series Rohde and Schwartz USB power meters: NRP-Z, NRP-xxS/SN power meters You can also perform receiver level calibration.

  • Page 14: Dynamic Range

    Specifications Dynamic range System dynamic range The system dynamic range is measured in a 10 kHz IF bandwidth scaled to 10 Hz noise bandwidth. Measurement dynamic range may be limited at low levels by crosstalk or the noise floor. System dynamic range System dynamic range, typical Frequency range 112 dB...
  • Page 15 Specifications Corrected crosstalk with load The corrected crosstalk with load refers to the crosstalk measured after performing a full 2–port SOLT calibration with isolation using a Spinner BN533861 type-N 50Ω load. Corrected crosstalk Frequency range –90 dB 300 kHz to < 1 MHz –118 dB 1 MHz to <...
  • Page 16 Specifications Dynamic accuracy, typical Power range Frequency +5 to +10 dBm 0 to +5 dBm –30 to 0 dBm –50 to –30 dBm 10 MHz 0.40 dB 0.25 dB 0.15 dB 0.20 dB 105 MHz 0.30 dB 0.25 dB 0.10 dB 0.15 dB 350 MHz 0.30 dB...
  • Page 17 Specifications Test port compression at maximum input level, typical Frequency +10 dBm input level 10 MHz 0.40 dB 105 MHz 0.40 dB 350 MHz 0.30 dB 787.5 MHz 0.25 dB 1.083 GHz 0.25 dB 2 GHz 0.20 dB 3 GHz 0.20 dB 4 GHz 0.20 dB...

  • Page 18: Signal Flow Parameters

    Specifications Signal flow parameters Uncorrected signal flow parameters User correction OFF Factory correction ON IF Bandwidth <= 30 kHz Reflection Transmission Directivity Source Load match tracking tracking Frequency (dB) match (dB) (dB) (dB) (dB) 300 kHz to < 500 kHz –25 –25 –4.5...
  • Page 19 Specifications Corrected signal flow parameters, typical — using 3.5mm Precision mechanical calibration kit Spinner BN533864 Load Load match: match Trans- Source Insertable with M-M Reflection mission Directiv- match or F-F tracking tracking Frequency ity (dB) (dB) vices(dB) thru (dB) (dB) (dB) 300 kHz to <...

  • Page 20: Reference Frequency

    Specifications Corrected signal flow parameters, typical — using 4–in-1 Type-N mechanical calibration kit Spinner BN533844 Load Load match: match Trans- Source Insertable with M-M Reflection mission Directiv- match or F-F tracking tracking Frequency ity (dB) (dB) vices(dB) thru (dB) (dB) (dB) 300 kHz to <...

  • Page 21: Interfaces, Input, And Output Ports

    Specifications Interfaces, input, and output ports Front panel connections Connection Description RF Port 1 Aux LO A LED indicator Aux LO B RF Port 2 RF ports Type N, 50 Ω, female, front panel, (2 ports) Torque 12 in-lbs nominal, <= 15 in-lbs (32Nm + margin) Type N MIL-STD-348B / MIL-C-39012 Class 2 Female Use connector savers or cables to extend life.

  • Page 22: Power Supply System

    Specifications Status indicator LED, multicolor LED state Description Instrument is powered and disconnected Green Instrument is powered and connected Rear panel connectors Connection Description Specification DC bias connection for RF Port 2 (See bias tee information below) Auxiliary trigger BNC, 50Ω, short-circuit protected, female Trigger input BNC, 1.7kΩ, female USB communications port...

  • Page 23: Host Processor

    Specifications Host processor System requirements Minimum PC requirement Intel® Core™ i3 processor, 8 GB RAM, Windows® 7 or higher, 64-bit To meet all performance Intel® Core™ i5 processor with 8 GB solid state drive specifications Best performance Intel® Core™ i7 processor, 8 GB solid state drive, Mechanical characteristics Weight 3.5 lbs (1.59 kg)

  • Page 24: Environmental Performance

    Specifications Environmental performance Classification General product classification of Portable equipment. Temperature Operating +5°C to +50°C Nonoperating –40°C to +71°C Humidity, operating Non-condensing under steady state and transient conditions. 5% to 80±5% RH (relative humidity) in the temperature range of +10°C to 30°C (+50°F to 86°F) 5% to 75% ±5% RH from +30 °C to +40 °C (+86°F to 104°F) 5% to 45% ±5% RH in the temperature range of above +40 °C to +50 °C (+104°F to...

  • Page 25: Performance Verification

    Performance verification Performance verification The procedures in this section verify that your instrument meets key performance specifications. However, the performance verification procedures are not intended to calibrate the VNA. To calibrate your instrument, return it to a Tektronix service facility. Prerequisites For the tests in this section to confirm performance and functionality, these requirements must be satisfied:...

  • Page 26: Required Equipment

    Performance verification Required equipment The performance verification procedures use external, traceable signal sources to directly check warranted characteristics. This table lists the equipment required for these procedures. Table 1: Test equipment required for TTR500 series Item Description Model Number Purpose Desktop or Laptop PC Windows®...

  • Page 27: Preliminary Checks

    Performance verification Table 1: Test equipment required for TTR500 series (cont.) Item Description Model Number Purpose Precision Type N test Cable, Phase-Stable, Tektronix P/N 012176800 Connect to calibration and cable Type-N(M) To Type-N(M), verification standards 60CM N(M) - N(F) adapter Adapter, Coaxial, 50Ω...

  • Page 28: Performance Verification Procedures

    Performance verification 3. View the instrument status bar in the lower left corner of the VectorVu-PC display. Verify that there are no errors or messages indicating loss of data or invalid calibration data. 4. Let the application acquire data. Allow the instrument to warm up for at least 30 minutes. Performance verification procedures Internal reference frequency accuracy over the calibration period Use this procedure to determine whether the internal time base is within its specified accuracy for a full calibration period.
  • Page 29 Performance verification 5. Use a BNC cable and splitter to connect the TTR external reference input to the same 10 MHz reference as the frequency counter. 6. In System > More > Reference Clock Source, set the TTR500 reference clock source to External. 7.

  • Page 30: Frequency Reference Output Level

    Performance verification Frequency reference output level Procedure. 1. Reset the TTR500 instrument to factory default settings (Preset > Main). 2. Connect the power sensor to the TTR500 reference output using a BNC cable and appropriate adapters. 3. Set the frequency of the power sensor to 10 MHz. 4.

  • Page 31: Maximum Output Power And Output Power Level Accuracy

    Performance verification Maximum output power and output power level accuracy You test the port output power at four levels: At 10 dBm to measure the maximum output power At three lower levels to determine the output power accuracy Procedure. 1. Power on the power meter/sensor and allow it to warm up to calibrated operating conditions. Perform a calibration and zeroing of the sensor as required by the manufacturer to meet specifications.
  • Page 32 Performance verification 10. Set the frequency of the instrument to the next value in the table. (See Table 4.) 11. Repeat steps 5 – 10 for this frequency. 12. Complete recordings for all frequencies in the table. 13. Connect the power sensor/power meter to port 2 of the TTR500. 14.
  • Page 33 Performance verification Table 5: Output power measurements — Port 2 TTR500 set- Power Power Power Center/signal Max. power ting meter setting meter setting meter frequency specification (Max-3 dB) reading (0 dBm) reading (–25 dBm) reading 300 kHz 1 MHz 3 MHz 5 MHz 10 MHz 30 MHz...
  • Page 34 Performance verification Table 6: Output power summary Peak positive Peak negative Specifica- Reference level Frequency range error error tion Pass/Fail Port 1 Max.power-3dB 300 kHz to 6 GHz ±2.5 dB 0 dBm 300 kHz to 6 GHz ±2.5 dB -25 dBm 300 kHz to 6GHz ±2.5 dB Port 2...

  • Page 35: Test Port Noise Floor

    Performance verification Test port noise floor This test measures the average internal noise level of the TTR500 instrument. The specification does not cover residual spurs which may appear depending on the frequency sweep parameters. If you notice residual spurs, turn on spur avoidance (Stimulus >...
  • Page 36 Performance verification Parameter Soft key path Value Number of frequency Stimulus > Sweep Setup > Points points Sweep type Stimulus > Sweep Setup > Sweep Log Freq Type Averaging Response > Avg > Averaging ON (use default factor of Power level Stimulus >...
  • Page 37 Performance verification 18. The default value of the IFBW for the TTR500 unit is 10 kHz. Therefore, you must subtract 40 dB from the measured noise value to normalize it to a 1 Hz IFBW. To do this, enter the measured value in Level in the table for noise floor calculations.

  • Page 38: Dynamic Range

    Performance verification Dynamic range The dynamic range of the system is the difference in dB between the specified maximum RF output power and the receiver noise floor in a 10 Hz IF bandwidth. Use the test to measure the average internal noise level of the instrument. The specification does not cover residual spurs which may appear depending on the frequency sweep parameters.
  • Page 39 Performance verification Table 8: Dynamic range (cont.) 10 Hz BW Noise Dynamic range level (Max specified Noise (Noise specified output power level(See level output -10 Hz BW noise Frequency range Table 7.) -30 dB) power level) Specification Pass/Fail 3.00 GHz to 4.49 4.5 GHz to 6.0 GHz TTR500 Specifications and Performance Verification...

  • Page 40: Dynamic Accuracy

    Performance verification Dynamic accuracy Use the dynamic accuracy test to measure the power level accuracy of the receiver over its specified range relative to a measurement at –10 dBm. Preparation. Power on the DUT, signal generator, and power meter. Allow them to warm up for 30 minutes. Perform the test without interruption.
  • Page 41 Performance verification 6. Connect a BNC cable between the reference output of the signal generator and the external reference input to the TTR500 instrument. 7. In System > Preset, perform a system preset of the TTR500 instrument to factory defaults. 8.
  • Page 42 Performance verification 23. Normalize the TTR500 reading as in step 15. 24. Return the signal generator to the level that exceeded the error limit. Note the difference. 25. Normalize the power meter by saving a new reference level. 26. Normalize the TTR500 as in step 15. 27.
  • Page 43 Performance verification Table 9: 2 GHz Dynamic accuracy calculations Approximate Approximate Relative TTR500 marker level of signal test port level reading of — normalized Specifica- generator (See Table 7.) power meter reading Error tion Pass/Fail Port 2 0.15 –5 0.15 –5 –10 0.00...
  • Page 44 Performance verification Table 10: 105 MHz Dynamic accuracy calculations Approximate Approximate Relative TTR500 marker level of signal test port level reading of — normalized Specifica- generator (See Table 7.) Power meter reading Error tion Pass/Fail Port 2 0.65 0.35 –5 –5 –10 0.00...

  • Page 45: Uncorrected Signal Flow Parameters (User Correction Off, Factory Correction On)

    Performance verification Uncorrected signal flow parameters (User correction OFF, Factory correction ON) Use the tests in this section to check for changes in the TTR500 hardware characteristics based on uncorrected signal flow parameters and factory calibration. The test procedure measures or computes these errors: Directivity Source match Load match...
  • Page 46 Performance verification 3. In Sweep Setup > Sweep Type, select Log Freq for logarithmic frequency sweep. 4. Directivity: Use a 50Ω metrology-grade calibration load in this procedure. a. Connect the 50Ω load calibration standard to port 1. b. Measure S c.
  • Page 47 Performance verification 6. Reflection tracking: a. Restore the instrument to factory default settings by performing a system preset (System > Preset > OK). b. In Sweep Setup > Sweep Type, select Log Freq for logarithmic frequency sweep. c. Connect the 50Ω load calibration standard to port 1. d.
  • Page 48 Performance verification 7. Load match: You can directly measure the load match by performing a 1–port user calibration at the end of a type-N male test cable and then measuring the other port. a. Restore the instrument to factory default settings by performing a system preset (System > Preset > OK). b.
  • Page 49 Performance verification h. Measure S of the cable+attenuator combination. i. Store the measurement to memory using Display > Memory > Data →Mem. j. Remove cable 1 and the adapter from port 1. k. Connect the open end of cable 2 to port 1 of the TTR500 unit. l.
  • Page 50 Performance verification Table 11: Uncorrected signal flow parameters Frequency Specification Port 1 measured Port 2 measured Pass/Fail Directivity (dB) 300 kHz — 6 GHz Source match (dB) 300 kHz — 6 GHz Load match (dB) 300 kHz — <2 MHz -4.5 2 MHz —...

  • Page 51: Test Record

    Performance verification Test record Record the performance test results for the TTR500 vector network analyzer in this section. Table 12: Test record for TTR500 VNA Instrument Serial Number: Certificate Number: Temperature: RH %: Date of Calibration: Technician: Instrument performance test Pass/Fail Notes External frequency reference lock...

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