Keysight N5281A User's And Service Manual
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Keysight N5281A User's And Service Manual

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Keysight Technologies
N5281A
Notice: This document contains references to Agilent.
Please note that Agilent's Test and measurement
business has become Keysight Technologies. For more
information, go to www.keysight.com.
User's and
Service Guide

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  • Page 1 Keysight Technologies N5281A Notice: This document contains references to Agilent. Please note that Agilent's Test and measurement business has become Keysight Technologies. For more information, go to www.keysight.com. User’s and Service Guide...
  • Page 2 PERFORMANCE OF THIS to the public to use, modify, DOCUMENT OR ANY INFORMATION reproduce, release, perform, CONTAINED HEREIN. SHOULD display, or disclose commercial KEYSIGHT AND THE USER HAVE A computer software or SEPARATE WRITTEN AGREEMENT commercial computer software WITH WARRANTY TERMS...

  • Page 3: Table Of Contents

    Table of Contents N5281A Introduction...............2 Description .
  • Page 4 Shipping Your Product to Keysight for Service or Repair ....... .

  • Page 5: N5281A

    N5281A User’s and Service Guide N5281-90001...

  • Page 6: Introduction

    Introduction The N5281A replaces the Hewlett Packard 8511B Four Channel Frequency Converter Test Set. This document describes how to use the N5281A Test Set with the following instruments. • E8363B/C (10 MHz to 40 GHz) PNA Network Analyzer • E8364B/C (10 MHz to 50 GHz) PNA Network Analyzer •...
  • Page 7 N5281A Introduction Figure 1 E8364B/C with N5281A Figure 2 N5264A Measurement Receiver with N5281A User’s and Service Guide N5281-90001...
  • Page 8 N5281A Introduction Figure 3 N5244/45A (2-Port) with N5281A Figure 4 N5244/45A (4-Port) with N5281A User’s and Service Guide N5281-90001...

  • Page 9: Description

    Description Description The Keysight N5281A is a four channel frequency converter test set. This test set is used with the Keysight E8363B/C (10 MHz to 40 GHz), E8364B/C (10 MHz to 50 GHz)  PNA Network Analyzers, N5244A (10 MHz to 40 GHz), N5245A (10 MHz to 50 GHz) PNA-X Network Analyzers, and the N5264A PNA-X Measurement Receiver.
  • Page 10 N5281A Description Figure 5 Measurement Setup User’s and Service Guide N5281-90001...

  • Page 11: Available Options

    N5281A Available Options Available Options Test Set Options The N5281A has two available test set options:  Refer to Figure 31 on page 41 Figure 32 on page • Standard - There are no attenuators in the RF Input paths.

  • Page 12: General Specifications

    General Specifications General Specifications Specifications for the N5281A Frequency Converter Test Set (10 MHz to 50 GHz) are characteristic for the system performance of the PNA and test set. Actual performance of the system is based on the customers PNA that is used with the test set. A functional certificate is only offered for the N5281A.

  • Page 13: Power Requirements

    N5281A General Specifications Power Requirements Verify that the required ac power is available before installing the test set to the network analyzer. • 100/120/220/240 V (50/60 Hz) • The instruments can operate with mains supply voltage fluctuations up to ± 10% of ...

  • Page 14: Environmental Requirements

    0 to 3,000 meters (~10,000 feet) (Operation or Storage) Environmental Tests The N5281A complies with all applicable safety and regulatory requirements for the intended location of use. Equipment Heating and Cooling If necessary, install air conditioning and heating to maintain the ambient temperature within the appropriate range.

  • Page 15: Dimensions And Space Requirements

    N5281A General Specifications Dimensions and Space Requirements Standard installation of the N5281A and network analyzers includes configuration and installation on a customer provided lab bench, or table top of adequate size and strength. Table 5 Instrument Dimensions Model Weight Height...

  • Page 16: Maximum Power Levels

    N5281A General Specifications Maximum Power Levels Table 7 Power Levels RF Input Power Damage Levels: RF Port +18 dBm LO Port +5 dBm Optimum LO Power 0 dBm (±1 dB) RF Input @ 0.1 dB Typical Compression: 10 MHz to 50 GHz...

  • Page 17: Front And Rear Panel Features

    N5281A Front and Rear Panel Features Front and Rear Panel Features Figure 6 Front Panel RF Input (A, B, C and D) These input ports transmit RF energy to the sampler within the instrument. Line Switch The front panel LINE switch disconnects the mains circuits from the mains supply. The switch is located at the bottom left corner of the front panel.

  • Page 18: If Out (A, B, C/R1 And D/R2)

    N5281A Front and Rear Panel Features Figure 7 Rear Panel (Multiport Test Set) LO IN Attenuators (Option 001) IF OUT Line Module IF OUT (A, B, C/R1 and D/R2) The IF Outputs are connected to the IF Inputs on the PNA. These connectors transmit the IF signal from the test set to the E8363B/C, E8364B/C, N5244A, N5245A and N5264A.

  • Page 19: Available Fuses

    N5281A Front and Rear Panel Features Available Fuses • Fuse (F 5 A/250V, 2110-0709) UL listed and CSA certified. Verify that the premise electrical voltage supply is within the range specified on the instrument. Figure 8 Line Fuse This instrument has autoranging line voltage input; be sure the supply voltage is within the specified range.

  • Page 20: Controlling The Test Set With E8363B/C Or E8364B/C

    E8363B/C or E8364B/C PNA Network Analyzer with required Option H11, which adds IF access. A PNA must be used to control the N5281A. The internal LO Source from the PNA can be used for testing. Refer to Figure 9 Figure 10 for cable connections.
  • Page 21 N5281A Controlling the Test Set with E8363B/C or E8364B/C Figure 10 Rear Panel N5281A and E8364B/C E8664B/C 2-Port PNA ATTENUATOR IF OUTPUTS IF OUTPUTS LO IN D/R2 C/R1 N5281A C/R1 Frequency Converter LO AUX D/R2 User’s and Service Guide N5281-90001...

  • Page 22: Controlling The Test Set With N5264A

    This section will describe how to setup and operate the N5281A Frequency Converter Test Set with the N5264A Measurement Receiver. A N5264A must be used to control the N5281A. The N5264A Option 108 adds an internal LO Source 26.5 GHz for testing. Refer to...
  • Page 23 N5281A Controlling the Test Set with N5264A Figure 12 Rear Panel N5281A and N5264A with Option 108 N5264A Measurement Receiver GPIB 10 MHZ REF D/R2 C/R1 ATTENUATOR IF OUTPUTS IF OUTPUTS LO IN D/R2 C/R1 N5281A LO AUX Frequency Converter RF Source User’s and Service Guide N5281-90001...
  • Page 24 N5281A Controlling the Test Set with N5264A Figure 13 Front Panel N5281A and N5264A without Option 108 N5264A Measurement Receiver RF INPUTS N5281A Frequency Converter LO Source RF Source User’s and Service Guide N5281-90001...
  • Page 25 N5281A Controlling the Test Set with N5264A Figure 14 Rear Panel N5281A and N5264A without Option 108 N5264A Measurement Receiver 10 MHZ REF D/R2 C/R1 GPIB ATTENUATOR IF OUTPUTS IF OUTPUTS LO IN D/R2 C/R1 N5281A LO AUX Frequency Converter...

  • Page 26: Controlling The Test Set With N5244A Or N5245A

    N5244/45A PNA-X Network Analyzer with required Option 020, which adds External IF Inputs. A PNA-X must be used to control the N5281A. The internal LO Source from the PNA-X can be used for testing. Refer to Figure 15 Figure 16 for cable connections....
  • Page 27 N5281A Controlling the Test Set with N5244A or N5245A Figure 16 Front Panel N5281A and N5244/45A (4-Port) N5244/45A Microwave Network Analyzer N5281A Frequency Converter RF INPUTS Figure 17 Rear Panel N5281A and N5244/45A N5244/45A Microwave Network Analyzer D/R2 C/R1 IF OUTPUTS...

  • Page 28: Controlling The Rf Receiver Attenuators

    Controlling the RF Receiver Attenuators Controlling the RF Receiver Attenuators The 11713C attenuator switch driver controls the test set through the Viking connector on the rear panel. Figure 18 Rear Panel N5281A and 11713C ATTENUATOR IF OUTPUTS IF OUTPUTS LO IN...
  • Page 29 N5281A Controlling the RF Receiver Attenuators Table 8 illustrates the key combinations that are required to set the attenuation. Example: In the Attenuator X panel, press 1 & 3 to set Channel A to 15 dB. Table 8 Attenuators Attenuator X...

  • Page 30: Operational Check

    N5281A and network analyzers are operating properly. Frequencies below 500 MHz are not allowed with the E8363B/C and E8364B/C PNA with Option H11. Equipment Required The Keysight N5281A requires that the user be familiar with the equipment and components listed in Table This section provides an equipment list and setup of the network analyzers and the test set.

  • Page 31: Verification Limits

    N5281A Operational Check Verification Limits Specifications for the N5281A Multiport Test Set are typical. System performance for the network analyzer and test set are only characteristic and intended as non-warranted information. Only a functional certificate is provided for the N5281A.
  • Page 32 N5281A Operational Check Table 12 Trace Noise Trace Noise Magnitude (dB, rms)  1 kHz IF Bandwidth Typical Typical Frequency (E8364B/C) (N5245A) 10 MHz to 500 MHz 0.02 500 MHz to 20 GHz 0.02 0.02 20 GHz to 40 GHz 0.04...
  • Page 33 N5281A Operational Check Table 14 Dynamic Range Dynamic Range @ 10 Hz IF Band wid th Typical (dB) Direct Receiver Typical (dBm) Typical (dBm) Access Input Low-Level Noise Floor Max Power Frequency E8363/64B/C N5244/45A E8363/64B/C N5244/45A Option 700 & 001...

  • Page 34: E8364B/C Operational Check Procedure

    N5281A Operational Check E8364B/C Operational Check Procedure The sequence of this procedure is very important and must be followed or the performance accuracy and results may vary from the reference plots provided. If you are using a E8364B or E8364C 2-Port PNA-X, channels C and D will be replaced with R1 and R2.
  • Page 35 N5281A Operational Check 12.Set the IF Switch Config On. In the drop-down menu select Trace/Chan > Channel > Hard ware Setup > IF Switch Config. Figure 21 IF Switch Config 13.Select all of the IF Inputs External A, B, R1 and R2 > OK.
  • Page 36 N5281A Operational Check 14.Connect the cable to A, RF INPUTS on the test set. Select [Meas] > Receivers,  select A > Apply > OK. Figure 23 Receiver A 15.Set the Reference level is at 0 dBm. Select [Scale] > Reference level > [0 dBm].

  • Page 37: N5245A Operational Check Procedure

    N5281A Operational Check N5245A Operational Check Procedure The sequence of this procedure is very important and must be followed or the performance accuracy and results may vary from the reference plots provided. If you are using a N5244A or N5245A 2-Port PNA-X, channels C and D will be replaced with R1 and R2.
  • Page 38 N5281A Operational Check 12.Select all of the IF Inputs External A, B, C and D > OK. Figure 26 IF Input 13.Connect the cable to A, RF INPUTS on the test set. Select [Meas] > More > Receivers,  select A > Apply > OK.
  • Page 39 N5281A Operational Check 14.Set the Reference level is to 0 dBm. Select [Scale] > Reference level > [0 dBm]. Figure 28 Typical Receiver A 15.Connect the cable to B, RF INPUTS on the test set. Select [Meas] > More > Receivers, ...

  • Page 40: Attenuator Element Verification Procedure

    N5281A Operational Check Attenuator Element Verification Procedure The Attenuator Element Verification Procedure is a functional test only. This test verifies the functionality of the variable attenuator in each channel RF path. The following procedures are used with the 11713C attenuator switch driver.
  • Page 41 N5281A Operational Check Figure 29 N5281A Block Diagram (Standard 700) User’s and Service Guide N5281-90001...
  • Page 42 N5281A Operational Check Figure 30 N5281A Block Diagram (Option 001) User’s and Service Guide N5281-90001...

  • Page 43: Service Information

    Service Information Service Information There are many other repair and calibration options available from the Keysight Technologies support organization. These options cover a range of service agreements with varying response times. Contact Keysight for additional information on available service agreements for this product.

  • Page 44: Replaceable Parts

    3.5 mm Bulkhead Connector (female) 5062-6618 2.4 mm Bulkhead Connector (female) 5062-7243 RF Cable, semi-rigid (MXB to LO IN) N5281-20001 N5281A Option 700 (Standard): RF Cable, semi-rigid (MXB to C) N5281-20002 RF Cable, semi-rigid (MXB to B) N5281-20003 RF Cable, semi-rigid (MXB to D)
  • Page 45 N5281A Service Information Figure 31 N5281A Option 700 with Mixer Brick (N5280-63015) User’s and Service Guide N5281-90001...
  • Page 46 N5281A Service Information Figure 32 N5281A Option 001 with Mixer Brick (N5280-63015) Atten-D Atten-B Atten-C Atten-A User’s and Service Guide N5281-90001...
  • Page 47 2.4 mm Bulkhead Connector (female) 5062-7243 RF Cable, semi-rigid (LO IN) N5281-20018 RF Cable, semi-rigid (LO OUT) N5281-20019 N5281A Option 700 (Standard): RF Cable, semi-rigid (MXB-A/D to RF-A) N5281-20020 RF Cable, semi-rigid (MXB-R2/R3 to RF-D) N5281-20021 RF Cable, semi-rigid (MXB-R1/R4 to RF-C)
  • Page 48 N5281A Service Information Figure 33 N5281A Option 700 with Mixer Brick (N5281-63024) User’s and Service Guide N5281-90001...
  • Page 49 N5281A Service Information Figure 34 N5281A Option 001 with Mixer Brick (N5281-63024) Atten-D Atten-B Atten-C Atten-A User’s and Service Guide N5281-90001...

  • Page 50: Safety And Information

    Declaration of Conformity A copy of the Declaration of Conformity is available upon request, or a copy is available on the Keysight Technologies web site at http://regulations.keysight.com/DoC.htm Statement of Compliance This product has been designed and tested in accordance with accepted industry standards, and has been supplied in a safe condition.

  • Page 51: Before Applying Power

    N5281A Safety and Information Before Applying Power Verify that the premises electrical supply is within the range of the instrument. The instrument has an autoranging power supply. If this prod uct is not used as specified, the protection provided by the equipment could be impaired.

  • Page 52: Connector Care And Cleaning Precautions

    Remove the power cord to the instrument. To clean the connectors use alcohol in a well ventilated area. Allow all residual alcohol moisture to evaporate, and fumes to dissipate prior to energizing the instrument. To prevent electrical shock, d isconnect the Keysight U3020S22 from mains electrical supply before cleaning.

  • Page 53: Regulatory Information

    It indicates that the product complies with all relevant directives. The Keysight email address is required by EU directives applicable to our product. The CSA mark is a registered trademark of the CSA International.

  • Page 54: Battery Collection

    Regulatory Information Battery Collection Do not throw batteries away but collect as small chemical waste, or in accordance with your country’s requirements. You may return the battery to Keysight Technologies for disposal. Refer “Contacting Keysight” on page 51 for assistance.

  • Page 55: Keysight Support, Services, And Assistance

    Contact Keysight for additional information on available service agreements for this product. Contacting Keysight Assistance with test and measurement needs, and information on finding a local Keysight office are available on the Internet at: http://www.keysight.com/find/assist You can also purchase accessories or documentation items on the Internet at: http://www.keysight.com/find...
  • Page 56 This information is subject to change without notice. © Keysight Technologies 2017, 2018 Print Date: December 2018 Supersedes March 2017 N5281-90001 www.keysight.com...

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