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Keysight N5280A User's And Service Manual
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Keysight N5280A User's And Service Manual

Keysight N5280A User's And Service Manual

Four channel frequency converter test set
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N5280A
Four Channel Frequency Converter Test Set
The Keysight N5280A is a four channel frequency converter test set used with the Keysight N5242A/B 2-Port or 4-
Port PNA-X Network Analyzer and a N5264A/B Measurement Receiver.
USER'S AND SERVICE GUIDE

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Summary of Contents for Keysight N5280A

  • Page 1 N5280A Four Channel Frequency Converter Test Set The Keysight N5280A is a four channel frequency converter test set used with the Keysight N5242A/B 2-Port or 4- Port PNA-X Network Analyzer and a N5264A/B Measurement Receiver. USER'S AND SERVICE GUIDE...

  • Page 2: Safety Notices

    DOCUMENT OR ANY INFORMATION reproduce, release, perform, WARNING notice until the indicated CONTAINED HEREIN. SHOULD display, or disclose commercial conditions are fully understood and KEYSIGHT AND THE USER HAVE A computer software or met. SEPARATE WRITTEN AGREEMENT commercial computer software WITH WARRANTY TERMS...

  • Page 3: Table Of Contents

    Controlling the Test Set with N5264A/B ......... 20 Controlling the N5280A Option 002 using an Oscilloscope ......24 Controlling the RF Receiver Attenuators .
  • Page 4 Keysight Support, Services, and Assistance ........

  • Page 5: Introduction

    User’s and Service Guide N5280A Introduction The N5280A replaces the 8511A Four Channel Frequency Converter Test Set. This document describes how to use the N5280A Test Set with the Keysight N5242A 2-Port, or 4-Port PNA-X Network Analyzer and N5264A Measurement Receiver. Figure 1...
  • Page 6 N5280A Introduction Figure 2 N5242A 4-Port PNA-X with N5280A Keysight N5280A User’s and Service Guide...
  • Page 7 N5280A Introduction Figure 3 N5264A Measurement Receiver with N5280A Keysight N5280A User’s and Service Guide...

  • Page 8: Description

    N5280A Description Description The Keysight N5280A is a four channel frequency converter Test Set. This Test Set is used with the Keysight N5242A 2-Port or 4-Port PNA-X Network Analyzer, and a N5264A Measurement Receiver. It can be operated with other microwave accessories (couplers, power splitters).
  • Page 9 N5280A Description Figure 4 Measurement Setup Keysight N5280A User’s and Service Guide...

  • Page 10: Available Options

    N5280A Description Available Options Test Set Options The N5280A has two available Test Set options:  Figure 29 on page Figure 30 on page 44 Figure 31 on Refer to page — Standard (700) - There are no attenuators in the RF Input paths.

  • Page 11: General Specifications

    General Specifications General Specifications Specifications for the N5280A Frequency Converter Test Set (10 MHz to 26.5 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.

  • Page 12: Power Requirements

    Any interruption of the protective conductor, inside or outside the instrument, is likely to make the instrument dangerous. Intentional interruption is prohibited. Keysight N5280A User’s and Service Guide...

  • Page 13: Environmental Requirements

    3000 meters (9,842 feet) (Operating) Environmental The N5280A complies with all applicable safety and regulatory requirements for the intended location of use. — The instrument can safely operate in a relative humidity of 80% for temperatures to 31 °C, decreasing linearly to 50% relative humidity at 40 °C.

  • Page 14: Dimensions And Space Requirements

    N5280A General Specifications Dimensions and Space Requirements Standard installation of the N5280A and PNA 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 Wid th Depth 37 kg ...

  • Page 15: Front And Rear Panel Features

    N5280A Front and Rear Panel Features Front and Rear Panel Features Front Panel N5280A (Option 700 and 001; shown in older model brand/colors) Figure 5 RF INPUT Ports Standby Switch Figure 6 Front Panel N8280A (Option 002) IF OUTPUT Ports...

  • Page 16: If Out (A, B, C/R1 And D/R2) (Option 700 And 001)

    RF Jumper (N5222-20091 was E8356-20072) is connected between LP IN and Max BW. These connectors transmit the IF signal from the Test Set to the N5242A 2-Port or 4-Port PNA-X and N5264A Measurement Receiver. Keysight N5280A User’s and Service Guide...

  • Page 17: Lo In (Option 700 And 001)

    Fuse 5A/250V, Part Number 2110-0709. The use of other fuses or material is prohibited. Figure 9 Line Fuse Verify that the premise electrical voltage supply is within the range specified on the instrument. Keysight N5280A User’s and Service Guide...

  • Page 18: Controlling The Test Set With N5242A/B

    This section will describe how to setup and operate the N5280A Frequency Converter Test Set with the N5242A/B 2-Port or 4-Port PNA-X Network Analyzer. A PNA-X must be used to control the N5280A. The internal LO Source from the PNA-X can be used for testing. Refer to Figure 10...
  • Page 19 N5280A Controlling the Test Set with N5242A/B Figure 11 Rear Panel N5280A and N5242A/B PNA-X N5242A 2-Port PNA-X D/R2 C/R1 IF OUTPUTS IF OUTPUTS ATTENUATOR LO IN D/R2 C/R1 LO AUX N5280A Frequency Converter Keysight N5280A User’s and Service Guide...

  • Page 20: Controlling The Test Set With N5264A/B

    This section will describe how to setup and operate the N5280A Frequency Converter Test Set with the N5264A/B Measurement Receiver. A N5264A/B must be used to control the N5280A. The N5264A/B Option 108 Figure 12 adds an internal LO Source 26.5 GHz for testing. Refer to Figure 16 on page 24 for cable connections.
  • Page 21 N5280A Controlling the Test Set with N5264A/B Figure 13 Rear Panel N5280A and N5264A/B with Option 108 N5264A/B Measurement Receiver 10 MHZ REF D/R2 C/R1 GPIB IF OUTPUTS IF OUTPUTS ATTENUATOR LO IN D/R2 C/R1 N5280A Frequency Converter LO AUX RF Source Keysight N5280A User’s and Service Guide...
  • Page 22 N5280A Controlling the Test Set with N5264A/B Figure 14 Front Panel N5280A and N5264A/B without Option 108 N5264A/B Measurement Receiver RF INPUTS N5280A Frequency Converter LO Source RF Source Keysight N5280A User’s and Service Guide...
  • Page 23 N5280A Controlling the Test Set with N5264A/B Figure 15 Rear Panel N5280A and N5264A/B without Option 108 N5264A/B Measurement Receiver 10 MHZ REF D/R2 GPIB C/R1 IF OUTPUTS IF OUTPUTS ATTENUATOR LO IN D/R2 C/R1 N5280A Frequency Converter LO AUX...

  • Page 24: Controlling The N5280A Option 002 Using An Oscilloscope

    N5280A Controlling the N5280A Option 002 using an Oscilloscope Controlling the N5280A Option 002 using an Oscilloscope Figure 16 Front Panel N5280A and Oscilloscope Trigger Horizontal Vertical Oscilloscope AUX Trig IN IF OUTPUTS RF INPUTS N5280A LO INPUT LO Source...

  • Page 25: 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 17 Rear Panel N5280A Option 001 and 11713C N5280A Frequency Converter IF OUTPUTS IF OUTPUTS ATTENUATOR...
  • Page 26 (C, RF INPUTS) Bank 1 1 5 10 2 6 20 Attenuator X  Attenuator Y Attenuation (dB) (B, RF INPUTS) (D, RF INPUTS) Bank 2 1 5 10 2 6 20 Figure 18 Front Panel Keysight N5280A User’s and Service Guide...

  • Page 27: Operational Check

    The operation verification limits provided ensure that your N5280A and PNA-X are operating properly. Equipment Required The Keysight N5280A requires that the user be familiar with the equipment and components listed in Table This section provides an equipment list and setup of the PNA-X and Test Set.

  • Page 28: Verification Limits

    N5280A Operational Check Verification Limits Specifications for the N5280A Multiport Test Set are typical. System performance for the PNA-X and Test Set are only characteristic and intended as non warranted information. Only a functional certificate is provided for the N5280A.
  • Page 29 Trace Noise in dB = 20 * Log 10 (1+ standard deviation). Trace Noise in degrees = standard deviation. Table 12 Port Match RF/LO Port Match Frequency Value < 9 dB 10 MHz to 10 GHz 10 GHz to 26.5 GHz < 4 dB Keysight N5280A User’s and Service Guide...
  • Page 30 Low-level noise floor measured with 50 Ohm load at the port. The effective dynamic range must take measurement uncertainties and interfering signals into account. This set-up should only be used when the receiver input will not exceed its compression or damage level. Keysight N5280A User’s and Service Guide...

  • Page 31: Typical Plots

    N5280A Operational Check Typical Plots Figure 19 CE Response at 10 MHz IF Outputs Figure 20 IF Bandwidth at 10 MHz to 1.5 GHz Keysight N5280A User’s and Service Guide...
  • Page 32 N5280A Operational Check Figure 21 LO AUX Output Keysight N5280A User’s and Service Guide...

  • Page 33: Operational Check Procedure (Option 700 And 001)

    9. Select [Sweep] > Number of Points > enter 401. Allow the Test Set and the PNA-X to warm up for a minimum of 30 minutes. Set the IF Config On. Trace/Chan > Channel > Hardware Setup > IF Config. Keysight N5280A User’s and Service Guide...
  • Page 34 N5280A Operational Check Figure 22 IF Config Keysight N5280A User’s and Service Guide...
  • Page 35 12.Select all of the IF Inputs External A, B, C and D > OK. Figure 23 IF Input 13.Connect the cable to A, RF INPUTS on the Test Set and select [Meas] > More > Receivers, select A > Apply > OK. Figure 24 Receiver A Keysight N5280A User’s and Service Guide...
  • Page 36 > Receivers, select C > Apply > OK to observe the power level trace. 17.Connect the cable to D, RF INPUTS on the Test Set. Select [Meas] > More > Receivers, select D > Apply > OK to observe the power level trace. Keysight N5280A User’s and Service Guide...

  • Page 37: Attenuator Element Verification Procedure

    See “Select [3] on the 11713C. The mean value should read 5 dB (± 1 dB). Select [3] again, it should read 0 dB.” on page 37. for B, C and D RF INPUTS. Keysight N5280A User’s and Service Guide...

  • Page 38: Operational Check Procedure (Option 002)

    N5280A Operational Check Operational Check Procedure (Option 002) The N5280A operational check can be verified using two Sources with a Power Meter and Power Sensor. Requirements for Operational Check The N5280A operational check measures the signal paths from the LO INPUT to the LO OUTPUT (LO AUX) and each of the four internal mixers, using a power divider.

  • Page 39: Instrument Setup (Source Calibration)

    PSG #2 (LO Source) power levels at the frequencies listed in the on page 40 at the end of test port cables. Record The RF and LO values in the table. Figure 26 Source and Power Meter Setup Source Power Sensor Power Meter Keysight N5280A User’s and Service Guide...

  • Page 40: Check If Output A

    2. On the PSG #2 connect RF OUT using a high-quality flexible cable to LO INPUT on the N5280A. 3. Connect the power meter to IF OUTPUT A on the N5280A. 4. Use the output frequencies and power levels from the...
  • Page 41 RF IN A Level (dBm) to RF IN A Level (dBm) at IF OUT A (GHz) (GHz) (dBm) 10 dBm 0 dBm LO AUX 5 to 11 17.5 5 to 11 26.0 26.5 5 to 11 Keysight N5280A User’s and Service Guide...

  • Page 42: Check Lo Aux

    N5280A Operational Check Check LO AUX 1. Connect the power meter to the LO AUX on the N5280A. 2. Use the output frequencies and power levels from the Table 15 on page 40. Record the result in table for the measure LO AUX. The LO AUX specification is greater than 10 dBm.
  • Page 43 N5280A Operational Check Figure 29 N5280A Block Diagram (Standard 700) Keysight N5280A User’s and Service Guide...
  • Page 44 N5280A Operational Check Figure 30 N5280A Block Diagram (Option 001) Keysight N5280A User’s and Service Guide...
  • Page 45 N5280A Operational Check Figure 31 N5280A Block Diagram (Option 002) Keysight N5280A User’s and Service Guide...

  • Page 46: Safety And Information

    The documentation contains information and warnings that must be followed by the user to ensure safe operation and to maintain the product in a safe condition. Keysight N5280A User’s and Service Guide...

  • Page 47: Before Applying Power

    4 C for every 100 watts dissipated in the cabinet. If the total power dissipated in the cabinet is greater than 800 watts, forced convection must be used. Keysight N5280A User’s and Service Guide...

  • Page 48: 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, disconnect the Keysight from N5280A mains electrical supply before cleaning.

  • Page 49: Regulatory Information

    Interference-Causing Equipment Standard for industrial, scientific and medical (ISM) equipment. Matériel industriel, scientifique et médical (ISM) The Keysight email address is required by EU directives applicable to our product. ccr.keysight@keysight.com The CSA mark is a registered trademark of the CSA International.
  • Page 50 N5280A Regulatory Information Keysight N5280A User’s and Service Guide...

  • Page 51: Battery

    — IEC/EN 61010-1 — Canada: CSA C22.2 No. 61010-1 — USA: UL std no. 61010-1 Acoustic Statement (European Machinery Directive): — Accoustical noise emission LpA<70 dB  Operator position Normal operation mode Per ISO 7779 Keysight N5280A User’s and Service Guide...

  • Page 52: Declaration Of Conformity

    N5280A Regulatory Information Declaration of Conformity To find a current Declaration of Conformity for specific Keysight product, go to: http://regulations.about.keysight.com/DoC/search.htm Keysight N5280A User’s and Service Guide...

  • Page 53: Electrostatic Discharge Protection

    To ensure user safety, static-safe accessories must provide at least 1 MΩof isolation from ground. These techniques for a static-safe work station should not be used when working on circuitry with a voltage potential greater than 500 volts. Keysight N5280A User’s and Service Guide...

  • Page 54: Keysight Support, Services, And Assistance

    Keysight for repair. If you wish to send your instrument to Keysight Technologies for service or repair: — Include a complete description of the service requested or of the failure and a description of any failed test and any error message.
  • Page 55 Installation Note Xxxxx-xxxxx...
  • Page 56 This information is subject to change without notice. © Keysight Technologies 2008, 2017, 2024 Print Date: February 2024 Supersedes: June 2017 *N5280-90001* N5280-90001 www.keysight.com...

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