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Keysight U3042AM20 User’s and Service Guide

U3042AM20
Troubleshooting the Test Set

RF Switching Failures

If the test set’s RF signal functionality is not operating properly, use the
following procedure to aid in isolating the source of problem. The RF internal
mechanical switches used in this instrument are biased with the +24 Vdc

supply voltage and controlled logic signals coming from the test set Controller
board and Switch Interface board.

1. Place the network analyzer and test set side by side (not stacked) and

connect the I/O cable (N4011-21002). See

Figure 3 on page 11

2. Ensure that the network analyzer is not in Multiport Mode.

3. Using the Test Set I/O Data command values, confirm the correct address

and data values are used, refer to

“Address and Data Values” on page 47

4. Verify that the ribbon cable is installed on the correct connector on the

Switch Interface board. If the connection is correct, substitute a working
switch or ribbon cable. Swapping can be performed in this situation.

Test Set and RF Switching Path Test

If you suspect an RF signal path problem with the test set and have verified

that the problem in not the front panel RF interface cables, the following
procedure will check all of the RF signal paths through the test set.

— Install the test set I/O cable from the analyzer to the Test Set rear panel.

— Remove the front panel RF interface cables and reinstall the analyzer’s front

panel jumper cables.

Equipment Required

— PNA, PNA-L or PNA-X Network Analyzer

— Two RF Flex Cables (3.5 mm male)

— 3.5 mm Adapters (female to female)

— Test Set I/O Cable

Summary of Contents for U3042AM20

Page 1: ...User s and Service Guide Keysight Technologies U3042AM20 Multiport Test Set Extension Use this manual with the following documents PNA Series Network Analyzer On Line Help System ...

Page 2: ...r commercial computer software documentation No additional government requirements beyond those set forth in the EULA shall apply except to the extent that those terms rights or licenses are explicitly required from all providers of commercial computer software pursuant to the FAR and the DFARS and are set forth specifically in writing elsewhere in the EULA Keysight shall be under no obligation to...

Page 3: ...ns and Space Requirements 7 Maximum Power Levels 8 Typical Reflection Tracking 9 Front and Rear Panel Features 10 Hardware Lock link Installation U3021 60004 13 Locking the Test Set to the PNA L 13 Hardware Lock link Installation U3021 60005 16 Locking the Test Set to the PNA or PNA X 16 N5232A RF Interface Cable Connections U3021 60075 20 Cable Connection Procedure 20 N5222A and N5242A RF Interfa...

Page 4: ... Interface Control Mode 41 Overview of the Interface Control 41 How to Access Interface Control Settings 42 Using Interface Control Mode 43 SCPI Control Mode 45 Overview of the SCPI Control 45 How to Access the Command Processor 45 SCPI Command Processor Console 46 Write Commands 46 Address and Data Values 47 Setting the Test Port Paths with Address and Data 47 Option 129 External Noise Source 51 ...

Page 5: ...ry of Operation 72 RF Coupler Bridges 72 RF Switch Components 72 PNA X Switch Paths 72 S10 Source to Ports 1 5 9 13 17 and 21 72 S20 Source to Ports 3 6 10 14 18 and 22 72 S30 Source to Ports 4 7 11 15 19 and 23 73 S40 Source to Ports 2 8 12 16 20 and 24 73 S11 Receiver to Ports 1 5 9 13 17 and 21 73 S21 Receiver to Ports 3 6 10 14 18 and 22 73 S31 Receiver to Ports 4 7 11 15 19 and 23 73 S41 Rece...

Page 6: ...t of Compliance 90 Before Applying Power 91 Connector Care and Cleaning Precautions 92 Regulatory Information 94 Instrument Markings 94 Battery 95 EMC 95 South Korean Class A EMC Declaration 95 Safety 95 Acoustic Statement European Machinery Directive 95 Declaration of Conformity 96 Electrostatic Discharge Protection 97 Keysight Support Services and Assistance 98 Service and Support Options 98 Con...

Page 7: ...Keysight U3042AM20 User s and Service Guide 1 U3042AM20 ...

Page 8: ...ysight U3042AM20 User s and Service Guide U3042AM20 Introduction Introduction This document describes how to use and service the U3042AM20 Multiport Test Set Figure 1 N5242A with U3042AM20 Option 129 shown ...

Page 9: ...erifying the Shipment To verify the contents shipped with your product refer to the Box Content List included with the shipment Inspect the shipping container If the container or packing material is damaged it should be kept until the contents of the shipment have been checked mechanically and electrically If there is physical damage refer to Contacting Keysight on page 98 Keep the damaged shippin...

Page 10: ...gram Files Keysight Network Analyzer testsets Ensure that the network analyzer has the latest version of firmware installed The following web site links provide the necessary information needed Documentation http www keysight com find pna Network Analyzer Firmware http na support keysight com pna firmware firmware htm U3042AM20 Test Set Files http na support keysight com multiport testsets testset...

Page 11: ...terface Kit Options The U3042AM20 requires the following kits to interface the test set with your analyzer The interface kit model option includes the hardware lock link and cable kit listed in Table 2 Table 2 Interface Kit Options 24 Port Network Analyzer System Interface Kit Option Hardware Lock link Cable Kit Connector Type N5222A PNA U3021PX3 Opt 442 U3021 600051 U3021 600772 SMA m m N5232A PN...

Page 12: ...n be subtracted from the analyzers dynamic range to determine the approximate performance of the system The life expectancy of the following switches are 5 million cycles When making measurements using more than one port single sweeps are recommended to minimize switch cycles 87106 60009 switch x8 N1811TL N1811 60005 or N1811 60027 Option 129 only Power Requirements Verify that the required ac pow...

Page 13: ...t in a cabinet the convection into and out of the instrument must not be restricted The ambient temperature outside the cabinet must be less than the maximum operating temperature of the instrument by 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 Required Conditions for Accuracy Enhanced Measu...

Page 14: ...ion will be determined by the frequency range limits of this combination It is recommended that you do not operate components near damage levels 30 dBm The power levels must be 3 dB below maximum level to ensure no damage Table 3 Instrument Dimensions Model Weight Height Width Depth U3042AM20 14 kg 30 8 lb 22 15 cm 8 7 in 42 5 cm 16 7 in 50 cm 20 in Table 4 U3042AM20 Maximum Power Levels Maximum T...

Page 15: ...nce for the analyzer and test set are only characteristic and are intended as non warranted information Typical performance are based on 1 to 2 units performance as shown in Table 5 Table 5 Typical Reflection Tracking PNA X Frequency Ports 1 to 4 Ports 5 to 24 10 MHz to 50 MHz1 1 Response from 10 MHz to 500 MHz is normal due to the PNA X couplers in comparison to the Test Set bridges The bridges h...

Page 16: ...the front panel S indicates Source test ports and R indicates Receiver test ports Standby Switch The switch is only a Standby switch not a AC line power switch The main power cord can be used as the system disconnecting device It disconnects the mains circuits from the mains supply Active LED The Active LED is on when the test set is connected and addressed by a network analyzer The LED is off whe...

Page 17: ...ure a common potential and reduce leakage current in a system Requires an English 1 4 20 thread nut 2950 0004 and lock washer 2190 0067 Pass Through Interface Connection to another test set Test Set Interface The test set I O connector is used to send address and data to the test set from the network analyzer Line Module This assembly houses the line cord connection line fuse and line voltage sele...

Page 18: ... panel switch is only a standby switch and is not a LINE switch Alternatively an externally installed switch or circuit breaker which is readily identifiable and is easily reached by the operator may be used as a disconnecting device Available Fuses Fuse F 5 A 250V 2110 0709 UL listed and CSA certified For continued protection against fire hazard replace line fuse only with same type and rating Th...

Page 19: ...nt from all voltage sources before being opened Locking the Test Set to the PNA L 1 The lock link kit U3021 60004 includes 0515 1619 Screw T20 M4x0 7 25 mm x2 Analyzer 0515 2317 Screw T15 M3 5x0 6 12 mm x2 Test Set N5242 20208 Right Lock link Test Set N5242 20209 Left Lock link Test Set N5242 20210 Right Lock link Analyzer N5242 20211 Left Lock link Analyzer 2 Remove the feet from the bottom of th...

Page 20: ... 6 Figure 6 Install Lock links to the Analyzer 5 Remove the two upper standoffs from the rear panel of the test set using a T20 Torx driver 6 Install the left and right lock links onto the test set as shown in Figure 7 Figure 7 Install Lock links to the Test Set Lock link N5242 20210 Right Screw 0515 1619 T20 M4x0 7 25 mm x2 N5242 20208 N5242 20209 Right lock link Left lock link Screw 0515 2317 x2...

Page 21: ...lower lock links to the test set s upper lock links using the spring loaded screw If the analyzer s lock links are not aligned with the screw holes loosen the screws securing the feet to the instrument to align and tighten Figure 9 Secure and Tighten Refer to Network Analyzer Interface Kit Options on page 5 Test Set Front Frame Network Analyzer Front Frame Slide the network Analyzer back to engage...

Page 22: ...ent from all voltage sources before being opened Locking the Test Set to the PNA or PNA X 1 The lock link kit U3021 60005 includes the following components 0515 1619 Screw T20 M4x0 7 25 mm 0515 2317 Screw T15 M3 5x0 6 12 mm 5023 0132 Lock links kit left right pair and screws Analyzer N5242 20206 Right Lock link Test Set N5242 20207 Left Lock link Test Set 2 Remove the feet from the bottom of the a...

Page 23: ...ks left not shown onto the analyzer as shown in Figure 11 Figure 11 Install Lock links to the Analyzer 5 Remove the two upper standoffs from the rear panel of the test set using a T20 Torx driver 6 Install the left and right lock links onto the test set as shown in Figure 12 Right lock link 5023 0132 pair Screws 0515 1619 T20 M4X0 7 25 mm ...

Page 24: ...20 User s and Service Guide U3042AM20 Hardware Lock link Installation U3021 60005 Figure 12 Install Locking Feet on the Test Set N5242 20206 Left lock link Right lock link N5242 20207 Screw 0515 2317 x2 T15 M3 5X0 6 12 mm ...

Page 25: ...cking the Analyzer 8 Secure the analyzer s lower lock links to the test set s upper lock link using the spring loaded screws If the analyzer s lock links are not aligned with the screw holes loosen the screws securing the feet to the instrument to align and tighten Figure 14 Locked Test Set Front Frame Network Analyzer Front Frame Slide the network Analyzer back to engage the lock link in the back...

Page 26: ...nnectors to spin or become loose Table 6 PNA L Interface Cable Connection U3021 60075 Numeric Order RF Cables From PNA L To Test Set 1 U3042 20182 Port 1 SOURCE OUT Port 5 SOURCE IN 2 U3042 20183 Port 1 CPLR THRU Port 5 CPLR THRU 3 U3042 20185 Port 1 CPLR ARM Port 5 CPLR ARM 4 U3042 20184 Port 1 RCVR A IN Port 5 RCVR OUT 5 U3042 20189 Port 2 CPLR ARM Port 6 CPLR ARM 6 U3042 20188 Port 2 RCVR B IN ...

Page 27: ...3042AM20 but the interface cable connects shown are the same 3 Connect the Test Set I O cable N4011 21002 to the Test Set Interface connector on the rear panel similar Figure 17 on page 24 Refer to System Operational Check on page 25 for turn on verification of the multiport system 84 83 88 87 92 91 96 95 82 83 87 86 90 91 95 96 85 84 88 93 92 94 97 89 85 82 89 86 93 90 97 94 ...

Page 28: ... 16 on page 23 Over torque will cause damage to the test set and may cause connectors to spin or become loose Table 7 PNA or PNA X RF Interface Cable Connection U3021 60077 Numeric Order RF Cables From PNA X To Test Set 1 U3042 20122 Port 1 CPLR THRU Port 5 CPLR THRU 2 U3042 20120 Port 1 SOURCE OUT Port 5 SOURCE IN 3 U3042 20119 Port 1 CPLR ARM Port 5 CPLR ARM 4 U3042 20121 Port 1 RCVR A IN Port 5...

Page 29: ...s of the part number for each cable The cables must be connected in the numeric order listed in Table 7 on page 22 Figure 16 RF Interface Cable Connections Refer to Test Set I O Cable Installation on page 24 16 U3042 20127 Port 2 CPLR ARM Port 8 CPLR ARM Table 7 PNA or PNA X RF Interface Cable Connection U3021 60077 Numeric Order RF Cables From PNA X To Test Set 22 24 24 24 24 26 28 20 19 21 23 23...

Page 30: ... N4011 21002 to the Test Set Interface connector on the rear panel similar to Figure 17 Figure 17 Test Set I O Cable Connection Interconnect Cable Verification 1 Perform the System Operational Check on page 25 2 If the problem still exists perform the RF Switching Failures on page 77 3 If a power hole or other failure still exists refer to 0 N4011 21002 ...

Page 31: ... analyzer Equipment Setup Turn on the test set and analyzer Preset the analyzer and make the following settings Set to Multi Port Mode Frequency range 10 MHz to 26 5 GHz depending on your analyzer IFBW 1 kHz Scale 10 dB Div Set the analyzer to measure S11 Verify Results The 3 5 mm short will be relocated to each Test Port and an uncorrected reflection response trace should be displayed that resemb...

Page 32: ...perational Check The trace ripple peak peak variation will be higher than when using an ECal Module due to variation in your Short s performance If response is in question perform Cal Kit Operational Check on page 59 Figure 18 Typical Reflection Response Ports 1 to 4 ...

Page 33: ...SOURCE OUT RCVR B IN CPLR ARM Port 4 CPLR THRU SOURCE OUT RCVR D IN CPLR ARM Keysight 4 Port PNA X CPLR THRU SOURCE OUT CPLR ARM Port 21 Port 9 Port 13 Port 5 SOURCE SIGNAL RCVR SIGNAL S11 6 1 2 3 C 4 5 S10 6 1 2 3 C 4 5 Port 17 Port 22 Port 10 Port 14 Port 6 S21 6 1 2 3 C 4 5 S20 6 1 2 3 C 4 5 Port 18 Port 23 Port 11 Port 15 Port 7 S31 6 1 2 3 C 4 5 S30 6 1 2 3 C 4 5 Port 19 Port 24 Port 12 Port ...

Page 34: ...28 Keysight U3042AM20 User s and Service Guide U3042AM20 System Operational Check Figure 20 Typical Reflection Response Ports 5 to 24 ...

Page 35: ...THRU SOURCE OUT RCVR B IN CPLR ARM Port 4 CPLR THRU SOURCE OUT RCVR D IN CPLR ARM Keysight 4 Port PNA X CPLR THRU SOURCE OUT CPLR ARM Port 21 Port 9 Port 13 Port 5 SOURCE SIGNAL RCVR SIGNAL S11 6 1 2 3 C 4 5 S10 6 1 2 3 C 4 5 Port 17 Port 22 Port 10 Port 14 Port 6 S21 6 1 2 3 C 4 5 S20 6 1 2 3 C 4 5 Port 18 Port 23 Port 11 Port 15 Port 7 S31 6 1 2 3 C 4 5 S30 6 1 2 3 C 4 5 Port 19 Port 24 Port 12 ...

Page 36: ...ption 551 on page 32 Interface Control Mode on page 41 SCPI Control Mode on page 45 Typeface Key Conventions The following key conventions are used throughout this document HARDKEYS are labeled front panel keys SOFTKEYS are indicated on the instrument display Italicized in parenthesis are menu paths for the B Model analyzer Sweep Setup for Multiport and Standalone Modes When the Test Set is connec...

Page 37: ...Keysight U3042AM20 User s and Service Guide 31 U3042AM20 Controlling the Test Set with the Analyzer Figure 22 Sweep Setup ...

Page 38: ...ty To access the multiport application select Utility System Configure Multiport Capability OR Instrument Setup External Hardware Multiport Multiport Configuration 2 Select U3042AM20 24 Port System from the drop down menu and select Restart as a multiport PNA with this test set OK The analyzer will restart the network application with the test set interface features Figure 23 If the test set is no...

Page 39: ...iport Other Test Setup The test set will be displayed as External Test Set Control U3042AM20 External Test Set Control This menu will allow the physical Ports 1 thru 24 to be identified as any port for your convenience For example Port 5 can be re named Port 2 The External Test Set Control U3042AM20 also allows control of the DUT control lines refer to Control Lines on page 54 To change the state ...

Page 40: ...e selected to be the Receiver Source or both as in S11 The front panel R LED indicates the port is the Receiver and the S LED indicates the port is the Source The B Model analyzer provides an S Parameter selection using the keypad For example to select S25 MEAS MEAS Enter S Parameters 2 5 Enter S Parameter Measurement A Model Analyzers Only Selecting New S Parameter Measurement S Parameter Tab Mul...

Page 41: ...alanced Tab Balanced Measurements can be configured by selecting the Balance tab in the New Trace menu For more information on balanced differential component measurement refer to the Application Note 1373 1 and 1373 2 5988 5634EN and 5988 5635EN at http www keysight com In the search menu type Multiport and Balanced Selecting Balanced Measurements ...

Page 42: ...ze the ECal module with adapters that will not be used in the measurement of the DUT To characterize the ECal module select Response Cal More ECal Characterize ECal Module OR Response Cal Cal Sets Cal Kits Characterize ECals Calibrate at the end of the test port RF cables and any adapters that are used to connect the DUT This removes the effect on the measurement of the DUT Failure to do this will...

Page 43: ...Keysight U3042AM20 User s and Service Guide 37 U3042AM20 Controlling the Test Set with the Analyzer Figure 29 ECal Characterization and Calibration Wizard ...

Page 44: ...onfiguration ports 5 and 9 will not operate correctly Select Trace Chan Channel Hardware Setup Path Config OR Instrument Setup Internal Hardware Path Config and in the drop down menu select Default OK Save this configuration as a User Preset by selecting Save User Preset Save current state as User Preset Do not use the factory Preset User Preset Off the analyzer will return to Option 029 path conf...

Page 45: ...elect ECal Module and select the previously saved user file from See On the analyzer select Response Cal Wizard on page 39 Figure 32 24 Port Calibration 3 Connect the ECal or the mechanical cal kit to the ports you are calibrating following the Cal Wizard prompts and click Measure after each connection The electrical delay value may be shown in the dialog box after the last measurement click OK 4 ...

Page 46: ... measurement errors occur ensure the newest version of firmware is installed on the analyzer Measurement errors can be a result of firmware algorithms Consult with Keysight Service or firmware web page for the latest firmware revisions and history http na support keysight com pna firmware firmware html ...

Page 47: ...mand and Aux I O without needing to create a remote program Refer to PNA Help menu Rear Panel Tour A unique set of control data can be sent for each channel In addition a unique set of control data can be sent before the channel sweep starts and after the sweep ends Interface Control settings can be saved and recalled from the Interface Control dialog box or with Instrument State Save and Recall I...

Page 48: ... select Trace Chan Channel Hardware Setup Interface Control OR Instrument Setup Internal Hardware Interface Control in the drop down menu and select Enable Interface Control The analyzer includes the Interface Control application and rear panel connection Please review this application before connecting the test set to the network analyzer Information regarding this application can be found in the...

Page 49: ...ared default setting Interface Control is disabled and NO data is sent To send data the individual interfaces must also be enabled Test Set I O Control addr data 2 Provides control of the test set I O Interface on the rear panel of the analyzer Used to control your test set Only positive integers are allowed to select switch positions or states of DUT control interface lines Refer to Address and D...

Page 50: ...fter the last trace on the channel sweep is completed Dwell After Command 7 Specifies a wait time in milliseconds after all commands to all interfaces are sent Any positive integer is allowed This is used to allow all external devices to settle before beginning a measurement An erratic trace could indicate that more settling time is necessary Handler I O Control and Aux I O Output Voltage 8 Provid...

Page 51: ...his allows you to control the test set without Option 551 or in non standard measurement classes such as Scalar Mixer Converter Swept IMD Noise Figure Cold Source etc The user is required to manually input address and data using the Command Processor Console in the Help menu Command Processor settings can not be saved or recalled Address and data can be written from the Command Processor How to Ac...

Page 52: ... Processor Console is open commands can remotely control the external test set I O connector by sending the following address an integer number data an integer number Address and data are separated by a comma Commands should be separated by a new line or carriage return For example CONT EXT TEST DATA address data CONT EXT TEST DATA 0 0 Example CONT EXT TEST DATA 0 0 Refer to Address and Data Value...

Page 53: ...ontrol Mode on page 45 Example 1 Refer to Figure 37 on page 49 If the ports have different addresses two separate address data commands must be used Port 5 is the Source and Port 6 is the Receiver Source Port 5 address 0 data 1 and Receiver Port 6 address 16 data 16 Two separate commands must to be sent you may use the same dialog box The entry will be 0 1 in one command line and 16 16 in the seco...

Page 54: ...dress and Data Values for Option 129 Address Data Description 0 0 Selects STD Source Path to Port 11 0 8 Selects Noise Source IN and OUT paths for Port 1 Sx1 0 9 Selects Noise Source IN and OUT paths for Port 5 Sx5 0 10 Selects Noise Source IN and OUT paths for Port 9 Sx9 0 11 Selects Noise Source IN and OUT paths Port 13 Sx13 0 12 Selects Noise Source IN and OUT paths for Port 17 Sx17 0 13 Select...

Page 55: ... Mechanical Switches Port 3 C A RCVR C IN Port 1 CPLR THRU SOURCE OUT RCVR A IN CPLR ARM Keysight 4 Port PNA X CPLR THRU SOURCE OUT CPLR ARM Port 21 Port 9 Port 13 Port 5 SOURCE SIGNAL RCVR SIGNAL S11 6 1 2 3 C 4 5 S10 6 1 2 3 C 4 5 Port 17 Port 22 Port 10 Port 14 Port 6 S21 6 1 2 3 C 4 5 S20 6 1 2 3 C 4 5 Port 18 0 1 16 16 DUT Receiver Port Source Port ...

Page 56: ...Port 3 C A RCVR C IN Port 1 CPLR THRU SOURCE OUT RCVR A IN CPLR ARM Keysight 4 Port PNA X CPLR THRU SOURCE OUT CPLR ARM Port 21 Port 9 Port 13 Port 5 SOURCE SIGNAL RCVR SIGNAL S11 6 1 2 3 C 4 5 S10 6 1 2 3 C 4 5 Port 17 Port 22 Port 10 Port 14 Port 6 S21 6 1 2 3 C 4 5 S20 6 1 2 3 C 4 5 Port 18 0 9 16 16 DUT Receiver Port Source Port IN OUT 1 2 3 4 S16 Opt 129 Ext Noise Source ...

Page 57: ...t Set SOURCE IN connected to the PNA X SOURCE OUT with a jumper cable when the command is sent Refer to Table 11 on page 48 and Figure 38 on page 50 System Configuration Figure 39 illustrated the PNA X with the Test Set and N4691B Option MOF ECal module installed The cable U3042 20076 provided with Option 129 is intended to be used with the N46xx series ECal modules The ECal module with Option M0F...

Page 58: ...52 Keysight U3042AM20 User s and Service Guide U3042AM20 Option 129 External Noise Source Figure 39 N5242A System with ECal Module USB Cable N4691B U3042 20076 ...

Page 59: ...o set Port 1 5 9 13 17 or 21 as the noise source path The Test Set will not operate in multiport mode Interface or GPIB control is required to set the Noise Source Path An 8 is added to the Data Value to activate the Option 129 switch as indicated in Table 12 Table 12 Option 129 Source Path Test Set I O Commands Address Data Source Path 0 0 Standard Port 1 Option 129 is not enabled 0 8 Noise Sourc...

Page 60: ... be from the internal adjustable voltage source 2 to 5 Vdc or an external dc power supply depending on how the connection to the control line is configured When using an external power supply a positive or negative voltage can be used Refer to Figure 40 and Table 14 on page 55 for control line pin location and description Refer to Internal Voltage Supply Configuration on page 56 and External Volta...

Page 61: ... Line 4 Control Line Output of the voltage from pin 13 or pin 14 5 Line 5 Control Line Output of the voltage from pin 13 or pin 14 6 Line 6 Control Line Output of the voltage from pin 13 or pin 14 7 Line 7 Control Line Output of the voltage from pin 13 or pin 14 8 Line 8 Control Line Output of the voltage from pin 13 or pin 14 9 10 11 Not used 12 2 V to 5 V Internal voltage output adjusted with th...

Page 62: ...the multimeter indicates the selected voltage Figure 41 illustrates an example of the connection between the DUT and the test set using the internal dc power supply Connect pin 12 to pin 13 and pin 14 to pin 15 to provide the ground path Connect the control lines to the external DUT You may only connect pin 12 13 and pin 14 15 damage may result if any other paths are short circuited Figure 41 Inte...

Page 63: ...ower supply DC ground to pin 15 Turning On the Test Set using an External Power Supply 1 Turn on the test set 2 Connect the DUT 3 Turn on the external power supply Turning Off the Test Set using an External Power Supply 1 Turn off the power supply 2 Turn off the test set 3 Disconnect the DUT Figure 42 Test Set to the DUT and External DC Power Supply 8 1 15 14 13 TO DUT Only required Lines GND Gnd ...

Page 64: ...ue is always 112 All DUT control lines remain in a high logic state until set by the address data 0 logic high All control lines are set by the sum of the data sent to the Test Set Example To set control line 1 and 8 to a low state send command 112 129 1 128 All other lines remain in a high state Table 15 Test Set DUT Control Address and Data Logic Table Address Data Description Pin 112 0 ALL the ...

Page 65: ...t you return your instrument to Keysight Technologies for servicing or repair if the Test Set and PNA X performance exceed the operational verification limits A periodic calibration is not required The Operators Check should be performed after System Setup or if performance is in question An N Port calibration should be performed before making a measurement If you suspect that your 24 Port configu...

Page 66: ...n 24 Port See the bottom of the measurement window a If only four S Parameters are listed select Utility System Configure Multiport Capability OR Instrument Setup External Hardware Multiport Multiport Configuration Select Restart as multiport PNA with this test set and select U3042AM20 24 Port from the drop down menu OK Refer to Figure 23 on page 32 5 Press Preset 6 Verify that the Start Frequency...

Page 67: ...port on the front or rear panel Refer to Figure 16 on page 23 This procedure assumes you are using a ECal If you are not see 1 Port Calibration and Verification Procedure on page 62 See Perform a 1 Port Calibration on Port 1 On the analyzer select Response Cal Start Cal Calibration Wizard on page 62 12 Allow the ECal module Test Set and PNA X to warm up for a minimum of 30 minutes ...

Page 68: ...r s USB port Select Use Electronic Calibration ECal Next 3 Continue following the Cal Wizard prompts In the Select Calibration Ports and ECal Module dialog box press Clear All then select Port Next Measure 4 Ensure the Cal Kit you are using is indicated on the right side of the dialog box Figure 43 1 Port Calibration 5 Continue to follow the prompts until the Calibration Completed dialog box appea...

Page 69: ...Port Calibration Procedure for Ports 2 thru 24 When finished there should be 24 Cal Sets saved with the titles 999 1 thru 999 24 24 Port If you are using an ECal module you can verify the individual port calibration by selecting Response Cal More ECal ECal Confidence Check Click Change Measurement and select the test port S Parameter Apply OK Read Module Data For further information refer to the H...

Page 70: ...racking 1 1 trace to the appropriate limits in Table 16 on page 59 Use the Marker function to measure trace values The trace should be similar to Figure 46 on page 65 12 Repeat step 10 above Compare the Reflection Tracking 1 1 trace to the appropriate limits in Table 16 on page 59 Use the Marker function to measure trace values The trace should be similar to Figure 46 on page 65 for Cal Sets 999 1...

Page 71: ...U3042AM20 User s and Service Guide 65 U3042AM20 Cal Kit Operational Check Figure 46 Standard Reflection Tracking Trace Port 1 to 4 with PNA X Figure 47 Standard Reflection Tracking Trace Port 5 to 24 with PNA X ...

Page 72: ...ng ECal Confidence Check is a method the verify the accuracy of a 1 Port calibration performed with mechanical standards or an ECal module To perform this check the test port of the ECal module must connect directly to the Test Port being verified without adapters 1 Perform an 1 Port Cal of the test set port being tested 2 Connect the ECal Module to the Port being verified Terminate any remaining ...

Page 73: ...Keysight U3042AM20 User s and Service Guide 67 U3042AM20 Cal Kit Operational Check Figure 48 ECal Confidence Check ...

Page 74: ...g unless you are qualified to do so Replaceable Parts Table 18 Available Replacement Parts SPO Description Keysight Part Number 4 Port Terminated Latching Coax Switch with Opt 124 026 201 302 and 403 N1811 600271 1 Instrument Option 129 only Fuse 5 A 250 V non time delay Socket 2110 0709 Fuse 8 A 250 V non time delay 0 0146 Ohm 2110 0342 PWR Supply AC DC SWG 650W 9 Output 0950 4729 PNA X Locking F...

Page 75: ...rt Number Front Panel LED Board programmed N5261 60005 Test Set Control Board programmed N5261 60006 4 Port Terminated Latching Coax Switch with Options 124 026 201 302 and 403 N1811 600271 1 Instrument Option 129 only DUT Control Board RoHS U3020 63223 SW Interface Board programmed U3025 60062 PNA or PNA X Lock link kit U3021 600052 2 Refer to Hardware Lock link Installation U3021 60005 on page 1...

Page 76: ...R B IN CPLR ARM Port 4 CPLR THRU SOURCE OUT RCVR D IN CPLR ARM Keysight 4 Port PNA X CPLR THRU SOURCE OUT CPLR ARM Port 21 Port 9 Port 13 Port 5 SOURCE SIGNAL RCVR SIGNAL Keysight 24 Port NWA System 10 MHz 26 5 GHz S11 6 1 2 3 C 4 5 S10 6 1 2 3 C 4 5 Port 17 Port 22 Port 10 Port 14 Port 6 S21 6 1 2 3 C 4 5 S20 6 1 2 3 C 4 5 Port 18 Port 23 Port 11 Port 15 Port 7 S31 6 1 2 3 C 4 5 S30 6 1 2 3 C 4 5...

Page 77: ...rt 4 CPLR THRU SOURCE OUT RCVR D IN CPLR ARM Keysight 4 Port PNA X CPLR THRU SOURCE OUT CPLR ARM Port 21 Port 9 Port 13 Port 5 SOURCE SIGNAL RCVR SIGNAL Keysight 24 Port NWA System 10 MHz 26 5 GHz S11 6 1 2 3 C 4 5 S10 6 1 2 3 C 4 5 Port 17 Port 22 Port 10 Port 14 Port 6 S21 6 1 2 3 C 4 5 S20 6 1 2 3 C 4 5 Port 18 Port 23 Port 11 Port 15 Port 7 S31 6 1 2 3 C 4 5 S30 6 1 2 3 C 4 5 Port 19 Port 24 P...

Page 78: ...tion loss through the CPLR THRU path is typically 4 dB at 26 5 GHz Do not use excessive RF power or DC voltage or damage may occur to the internal resistors RF Switch Components The Test Set uses eight mechanical switches that have internal 50 Ω termination The switches select the RF paths from the PNA X source and receiver through interconnect cables to the Test Set PNA X Ports 1 thru 4 and Test ...

Page 79: ...the Receiver and Test Set Ports 5 9 13 17 and 21 Coupler Arm path is terminated S21 Receiver to Ports 3 6 10 14 18 and 22 Switch 21 provides control of the Receiver Input path to PNA X Port 3 and Test Set Ports 6 10 14 18 and 22 In the state shown in the block diagram switch 21 routes the Port 3 Coupler Arm to the Receiver and Test Set Ports 6 10 14 18 and 22 Coupler Arm path is terminated S31 Rec...

Page 80: ...r Switch is operational The front panel Active LED will be off unless the test set interface cable is connected and the test set is addressed by the network analyzer 2 Turn on the Standby Switch a The rear panel Deck and Internal power supply fans should be operational If not continue with See AC Line voltage checks remove AC power from the instrument on page 74 3 AC Line voltage checks remove AC ...

Page 81: ...rnal power supply fans should be operational Verify that the DC indicator LEDs are on as shown in Figure 51 on page 75 LEDs indicators for 9 and 10 Vdc are off Figure 51 DC Power Status LEDs d If the DC Indicator LEDs are not on suspect the main power supply module or front panel switch The power supply 0950 4729 terminal connections should also be verified with a DVM Verify the voltages on the po...

Page 82: ...on page 11 DC Power Supply Test Set Control Bd PCB 1 12 15vdc S10 12 15vdc 24vdc 3 5vdc Switch Interface Bd PCB2 Test Set Interface Pass Thru Interface J1 J4 J2 J3 J9 Ext DUT Control J11 J12 J14 J13 AC Line Filter Assy FS2 FS3 AC IN P10 S11 S20 J101 J100 P1 Active ON LED Frt Pnl J16 J5 FAN J15 Std By FS1 AC IN J6 J7 J8 S21 S30 S31 S41 P11 P20 P21 P30 P31 P41 Front Panel Active 9 10vdc N C Signal P...

Page 83: ... confirm the correct address and data values are used refer to Address and Data Values on page 47 4 Verify that the ribbon cable is installed on the correct connector on the Switch Interface board If the connection is correct substitute a working switch or ribbon cable Swapping can be performed in this situation Test Set and RF Switching Path Test If you suspect an RF signal path problem with the ...

Page 84: ...e the response trace 6 Set the analyzer to Interface Control Mode Select Channel Hardware Setup More Interface Control and click Enable Interface Control box The addrs data entries noted in the following Test Instructions table will be used to configure the RF switches for this testing After making your entry select OK to execute the command to return back for further entries select Interface Cont...

Page 85: ...ociated with this group of test ports 0 1 P5 CPLR S10 2 Source IN to Port 9 0 2 P9 CPLR S10 3 Source IN to Port 13 0 3 P13 CPLR S10 4 Source IN to Port 17 0 4 P17 CPLR S10 5 Source IN to Port 21 0 5 P21 CPLR S10 6 Source IN to Port 6 16 1 P6 CPLR S20 7 Source IN to Port 10 16 2 P10 CPLR S20 8 Source IN to Port 14 16 3 P14 CPLR S20 9 Source IN to Port 18 16 4 P18 CPLR S20 10 Source IN to Port 22 16...

Page 86: ...80 Keysight U3042AM20 User s and Service Guide U3042AM20 Troubleshooting the Test Set Figure 53 Source IN to Ports 5 to 24 Path Response Std ...

Page 87: ...VR OUT to Port 21 0 80 P21 CPLR S11 6 RCVR OUT to Port 6 16 6 P6 CPLR S21 7 RCVR OUT to Port 10 16 32 P10 CPLR S21 8 RCVR OUT to Port 14 16 48 P14 CPLR S21 9 RCVR OUT to Port 18 16 64 P18 CPLR S21 10 RCVR OUT to Port 22 16 80 P22 CPLR S21 11 RCVR OUT to Port 7 32 16 P7 CPLR S31 12 RCVR OUT to Port 11 32 32 P11 CPLR S31 13 RCVR OUT to Port 15 32 48 P15 CPLR S31 14 RCVR OUT to Port 19 32 64 P19 CPLR...

Page 88: ...82 Keysight U3042AM20 User s and Service Guide U3042AM20 Troubleshooting the Test Set Figure 54 RCVR OUT to Ports 5 to 24 Path Response Std ...

Page 89: ... Data Path Components 1 Port 5 Source IN to CPLR THRU 0 0 S10 2 Port 6 Source IN to CPLR THRU 16 0 S20 3 Port 7 Source IN to CPLR THRU 32 0 S30 4 Port 8 Source IN to CPLR THRU 64 0 S40 Table 24 Receiver Bypass Signal Path Test Instructions see Figure 55 Path Test Port Group RF Path Description Control Mode Address Data Path Components 1 Port 5 RCVR OUT to CPLR ARM 0 0 S11 2 Port 6 RCVR OUT to CPLR...

Page 90: ...apter 4 Perform a Response Calibration to normalize and remove the loss created by the test cables 5 Move the adapter to Port 5 6 Connect the cable from Port 1 to Noise Source In 7 Connect the cable from Port 2 to CPLR THRU near Port 5 8 Send the Test Set I O command 0 8 9 Set trace S21 and verify that the trace is similar to Figure 56 on page 85 Ext Noise Source In to Ports 5 9 13 17 and 21 10 Re...

Page 91: ...ght U3042AM20 User s and Service Guide 85 U3042AM20 Troubleshooting the Test Set Figure 56 Ext Noise Source In to CPLR THRU Path Response Figure 57 Ext Noise Source In to Ports 5 9 13 17 or 21 Path Response ...

Page 92: ...s together using an adapter 3 Perform a response calibration to normalize and remove the loss created by the test cables 4 Remove the adapter 5 Connect the cable from Port 1 to Ext Noise Source Out 6 Connect the cable from Port 2 to the Test Set Source In 7 Send the Test Set I O command 0 8 Verify that the Ext Noise Source front panel LED is On 8 Set trace S21 and verify that the trace is similar ...

Page 93: ...ss Active LED P16 Active LED DUT Control Ribbon Cable J9 DUT Controller Board Power Supply Wire Harness J11 14 Power Supply Table 27 Switch Interface Board Switch Interface Bd Connection Ports Path 10 P10 Ports 5 9 13 17 and 21 Source 11 P11 Ports 5 9 13 17 and 21 Source 20 P20 Ports 6 10 14 18 and 22 Receiver 21 P21 Ports 6 10 14 18 and 22 Receiver 30 P30 Ports 7 11 15 19 and 23 Source 31 P31 Por...

Page 94: ...M20 User s and Service Guide U3042AM20 Troubleshooting the Test Set Figure 59 Top View DUT Control Bd Switch Interface Bd top Couplers x20 Test Set Control Bd bottom Option 129 Switch S16 S41 S31 S21 S11 S10 S40 S30 S20 ...

Page 95: ...ht U3042AM20 User s and Service Guide 89 U3042AM20 Troubleshooting the Test Set Figure 60 Bottom View Fan Power Supply Line Module Fuse x2 Couplers x20 Option 129 Connector S16 S10 S20 S30 S40 S11 S21 S31 S41 ...

Page 96: ...protective earthing ground incorporated in the power cord The mains plug shall only be inserted in a socket outlet provided with a protective earth contact Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous Intentional interruption is prohibited Always use the three prong AC power cord supplied with this product Failure to ensure a...

Page 97: ...ys use the three prong AC power cord supplied with this product Failure to ensure adequate earth grounding by not using this cord may cause product damage and the risk of electrical shock This product is designed for use in Installation Category II and Pollution Degree Before switching on this instrument make sure the supply voltage is in the specified range Verify that the premise electrical volt...

Page 98: ...of covers or removal of parts is likely to expose the user to dangerous voltages Disconnect the instrument from all voltage sources before opening No operator serviceable parts inside Refer servicing to qualified personnel To prevent electrical shock do not remove covers The detachable power cord is the instrument disconnecting device It disconnects the mains circuits from the mains supply before ...

Page 99: ... electrical supply before cleaning Use a dry cloth or one slightly dampened with water to clean the external case parts Do not attempt to clean internally If flammable cleaning materials are used the material shall not be stored or left open in the area of the equipment Adequate ventilation shall be assured to prevent the combustion of fumes or vapors ...

Page 100: ...the product frame or chassis The CE mark is a registered trademark of the European Community The Keysight email address is required by EU directives applicable to our product The CSA mark is a registered trademark of the CSA International This is a symbol of an Industrial Scientific and Medical Group 1 Class A product CISPR 11 Clause 5 This is a marking to indicate product compliance with the Cana...

Page 101: ... 001 du Canada IEC EN 61010 1 Canada CSA C22 2 No 61010 1 USA UL std no 61010 1 Acoustic Statement European Machinery Directive Acoustical noise emission LpA 70 dB Operator position Normal operation mode Per ISO 7779 Safety Complies with the essential requirements of the European Low Voltage Directive as well as current editions of the following standards dates and editions are cited in the Declar...

Page 102: ...ide U3042AM20 Regulatory 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 https regulations about keysight com DoC search htm ...

Page 103: ...anti static precautions are taken Two types of ESD protection are listed below Purchase acceptable ESD accessories from your local supplier Conductive table mat and wrist strap combination Conductive floor mat and heal strap combination Both types when used together provide a significant level of ESD protection To ensure user safety static safe accessories must provide at least 1 MΩ of isolation f...

Page 104: ...ve can determine the warranty status of your unit Shipping Your Product to Keysight for Service or Repair IMPORTANT Keysight Technologies reserves the right to reformat or replace the internal hard disk drive in your analyzer as part of its repair This will erase all user information stored on the hard disk It is imperative therefore that you make a backup copy of your critical test data located o...

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Page 106: ...This information is subject to change without notice Keysight Technologies 2010 2019 Edition 4 November 2019 Supersedes May 2018 U3042 90009 www keysight com ...

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