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Keysight N1913 User Manual

Epm series power meters
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Keysight N1913/1914A EPM
Series Power Meters
User's Guide

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Summary of Contents for Keysight N1913

  • Page 1 Keysight N1913/1914A EPM Series Power Meters User’s Guide...

  • Page 2: Safety Information

    Printed in Malaysia forth therein, does not require or CONTAINED HEREIN. SHOULD Published by: permit, among other things, that KEYSIGHT AND THE USER HAVE A Keysight: (1) Furnish technical SEPARATE WRITTEN AGREEMENT Keysight Technologies information related to commercial WITH WARRANTY TERMS COVERING...

  • Page 3: Certification

    Keysight shall not be liable for errors or for incidental or consequential damages in connection with the furnishing, use, or performance of this document or any information contained herein.

  • Page 4: Limitation Of Warranty

    Buyer. Keysight does not warrant the Buyer’s circuitry or malfunctions of Keysight products that result from the Buyer’s circuitry. In addition, Keysight does not warrant any damage that occurs as a result of the Buyer’s circuit or any defects that result from Buyer-supplied products.

  • Page 5: Restricted Rights Legend

    “restricted computer software” as defined in FAR 52.227-19 (Jun 1987) (or any equivalent agency regulation or contract clause), whichever is applicable. You have only those rights provided for such Software and Documentation by the applicable FAR or DFARS clause or the Keysight standard software agreement for the product involved. Technology Licenses The hardware and/or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license.

  • Page 6: Safety Summary

    Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Keysight Technologies assumes no liability for the customer’s failure to comply with these requirements.

  • Page 7: Safety Symbols

    INSULATION. Direct current (DC) On (Supply) Both direct and alternating current Off (Supply) Three-phase alternating current Caution, risk of electric shock Earth (ground) TERMINAL Caution, hot surface PROTECTIVE CONDUCTOR TERMINAL In position of bi-stable push control Keysight N1913/1914A User’s Guide...
  • Page 8 (ESD) which can result in damage to the product. Equipotentiality Observe ESD precautions given on the product, or its user documentation, when handling equipment bearing this mark. Keysight N1913/1914A User’s Guide...

  • Page 9: General Safety Information

    REMOVE POWER and do not use the instrument until safe operation can be verified by service-trained personnel. If necessary, return the instrument to a Keysight Technologies Sales and Service Office for service and repair to ensure the safety features are maintained.

  • Page 10: Environmental Conditions

    Environmental Conditions The N1913/1914A is designed for indoor use and in an area with low condensation. The table below shows the general environmental requirements for this instrument. Environmental cond ition Requirement Operating condition – 0 °C to 55 °C Temperature Storage condition –...

  • Page 11: Regulatory Markings

    This affixed product label leak or deteriorate during normal use. indicates that you must not discard Forty years is the expected useful life this electrical or electronic product in of the product. domestic household waste. Keysight N1913/1914A User’s Guide...

  • Page 12: Waste Electrical And Electronic Equipment (Weee) Directive 2002/96/ Ec

    To return this unwanted instrument, contact your nearest Keysight Service Center, or visit http://about.keysight.com/en/companyinfo/environment/takeback.shtml for more information. Sales and Technical Support To contact Keysight for sales and technical support, refer to the support links on the following Keysight websites: – www.keysight.com/find/epm (product-specific information and support, software and documentation updates) –...

  • Page 13: Table Of Contents

    .........34 Window Symbols and Pop-ups .......37 Keysight N1913/1914A User’s Guide...
  • Page 14 ........84 Determine the Right Step to be Set ......86 Keysight N1913/1914A User’s Guide...
  • Page 15 .......130 Using E9300 E-Series Power Sensors Keysight N1913/1914A User’s Guide...
  • Page 16 ....166 Pre-installed Calibration Table Contents ....170 Keysight N1913/1914A User’s Guide...
  • Page 17 .........218 Keysight N1913/1914A User’s Guide...
  • Page 18 ............240 10 Characteristics and Specifications Keysight N1913/1914A User’s Guide...
  • Page 19 ......77 Figure 2-18 Duty cycle indicator ......77 Keysight N1913/1914A User’s Guide...
  • Page 20 ......115 Figure 2-51 Warning message ......116 Keysight N1913/1914A User’s Guide...
  • Page 21 ... . .165 Figure 5-9 “Sensor Tbls” screen ......167 Keysight N1913/1914A User’s Guide...
  • Page 22 ......233 Figure 9-4 Secure erase status pop-up ....238 Keysight N1913/1914A User’s Guide...
  • Page 23 Installed power sensor models ....191 Table 7-1 Power sensor connection requirements ..200 Keysight N1913/1914A User’s Guide...
  • Page 24 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1913/1914A User’s Guide...

  • Page 25: Introduction

    Window Symbols and Pop-ups Rear Panel Connections Using the Instrument Web Interface Making Socket Connection Programming Language Selection (Option 200) This chapter introduces you to the front panel display and instrument Web browser of the N1913/1914A EPM Series power meter.

  • Page 26: Lxi Class-C Compliant Power Meter

    These are normally supplied with the rack and are not included with the rack mount options. If you are installing an instrument on top of the N1913/1914A, ensure that the instrument does not obstruct the ventilation holes at the top of the N1913/1914A.

  • Page 27: Power Meter And Sensor Capability

    Introduction Power Meter and Sensor Capability Your N1913/1914A EPM Series power meter is compatible with the Keysight E9300 E-Series, E4410 E-Series, 8480 Series, N8480 Series, U2000 Series, and the U8480 Series thermocouple sensor. However, not all sensor and meter combinations have the same features or capabilities. The main differences are as...

  • Page 28: Conventions Used In This Guide

    To identify channels on a dual channel meter a softkey on an N1913A meter Channel B Channel A becomes on an N1914A. Softkey When you are asked to press “the channel” in a procedure, make sure you select the relevant channel. Keysight N1913/1914A User’s Guide...

  • Page 29: Front Panel Keys And Connections

    Press this key to switch the meter between on and standby. When power is supplied, the background LED is red. Pressing the key, switches the power meter on and the background LED is green. When the meter is powered on, the start-up will take approximately 25 seconds. Keysight N1913/1914A User’s Guide...
  • Page 30 Press this key to setup relative measurements or set display offsets. Use this key to configure the selected measurement. Press this key to access the measurement display menu. You can choose the displayed measurement resolution, units and display format. Use this key together with to configure measurement displays. Keysight N1913/1914A User’s Guide...
  • Page 31 1 of 2 is displayed beside the key indicating the first page of a two page menu. Press the key to access the next page or second page. (A 2 of 2 is displayed). Keysight N1913/1914A User’s Guide...
  • Page 32 Press this key to access the zero and calibration menus. Press this key to reset the MAX HOLD and MIN HOLD measurement. Press these keys to enter numeric values in the pop-up fields, for example, the offset values. To complete the entry, use the softkey. Keysight N1913/1914A User’s Guide...
  • Page 33 If the meter is configured with Option 201, one USB Type A port is fitted to the front panel (Channel C) and another Type A port (Channel D) to the rear panel. Keysight N1913/1914A User’s Guide...

  • Page 34: The Display Layout

    This measurement line is the Upper Window/Upper Measurement. 5 The available softkey labels are displayed in these three fields. Additionally, settings associated with the labeled function are displayed under the label. Keysight N1913/1914A User’s Guide...

  • Page 35: Figure 1-2 Single Numeric And Analog Display

    Using the key on numeric measurement results window, you can choose either two rectangular windows, a single enlarged window, or a full screen display. The display style is applied to the currently selected window or measurement line. Keysight N1913/1914A User’s Guide...

  • Page 36: Figure 1-3 Full Screen Numeric Display

    If the measurement is within the limits this field is empty. If the measurement result is less than the minimum limit set, Undr Lmt is displayed. If the measurement result is more than the maximum limit set, Over Lmt is displayed. Keysight N1913/1914A User’s Guide...

  • Page 37: Window Symbols And Pop-Ups

    Depending on the severity of the warning, the pop-up may be displayed in orange or red. Keysight N1913/1914A User’s Guide...

  • Page 38: Wait Symbol Pop-Up

    For example, prior to a Save being carried out. Numeric Entry Pop-up This type of pop-up window is displayed when you need to modify numeric data. The numeric keys allow you to enter the value. Keysight N1913/1914A User’s Guide...

  • Page 39: Text Entry Pop-Up

    List Pop-up This pop-up window is displayed when you are required to select an entry from a list. Use the up/down arrow keys to highlight your choice. Press select to complete the entry. Keysight N1913/1914A User’s Guide...

  • Page 40: Rear Panel Connections

    Trigger input and output connections are made via BNC connectors. USB Mini-B port This USB port is used only for remote interface connection. GPIB This connector allows the power meter to be controlled remotely using the General Purpose Interface Bus. Keysight N1913/1914A User’s Guide...

  • Page 41: Using The Instrument Web Interface

    Introduction Using the Instrument Web Interface You can communicate with the N1913/1914A EPM Series power meters using the Web interface. The instrument Web interface can be accessed from Keysight Connection Expert as shown in Figure 1-4. Alternatively, the instrument Web interface can also be accessed directly from a NOTE Web broswer by entering the instrument’s IP address or hostname in the...

  • Page 42: Figure 1-5 N1914A Epm Series Power Meter Web Interface (Welcome Page)

    – The Web pages can be browsed using Web browser such as Internet Explorer and Mozilla Firefox. Instrument on the network can be physically identified from the blinking message on front panel screen by clicking Turn On Front Panel Identification Ind icator on the Welcome Page. Keysight N1913/1914A User’s Guide...

  • Page 43: Figure 1-6 Message To Identify The Instrument

    – IP conflict occurs, or Lan: Faul t – IP address failed to be obtained using selected LAN configuration, or Status: Initialization failed – No LAN configuration is selected. Lan: Faul t – LAN cable is unplugged. Status: Disconnected Keysight N1913/1914A User’s Guide...

  • Page 44: Figure 1-7 Example Of Lan Status Message

    Status: Running – IP address obtained from Auto-IP or manual configuration. Figure 1-7 Example of Lan Status message For more details on remote interface configuration, refer to N1913/1914A EPM NOTE Series Power Meters Installation Guide. Keysight N1913/1914A User’s Guide...

  • Page 45: Using The Remote Front Panel

    1 On the left of the Welcome Page, select Browser Web Control. The remote front panel appears. 2 Click the front panel keys to control the instrument. Java™ must be installed on the controlling PC for remote front panel operation. NOTE Keysight N1913/1914A User’s Guide...

  • Page 46: Editing The Instrument's Lan Settings

    On the Welcome Page, click View and Mod ify Configuration. This opens the configuration window shown in Figure 1-8. Figure 1-8 Viewing LAN configuration settings from the Web interface To edit parameters shown, click Mod ify Configuration. The Enter Password dialog box appears as shown in Figure 1-9. Keysight N1913/1914A User’s Guide...

  • Page 47: Figure 1-9 Password Security Dialog Box

    Password security dialog box Click the Submit (accept the default password) and the window opens as shown Figure 1-10. The default password is “keysight”. A LAN reset needs to be performed to ensure that the password is reset to NOTE default.

  • Page 48: Figure 1-10 Changing The Instrument Lan Interface Configuration

    Introduction Figure 1-10 Changing the instrument LAN interface configuration Keysight N1913/1914A User’s Guide...

  • Page 49: Capturing The Screen Image

    2 Right-click on the image and select Save Picture As…. 3 Select a storage location for the image file and click Save. The image is captured as a Bitmap (BMP) file, to the default file name display.bmp. Keysight N1913/1914A User’s Guide...

  • Page 50: Getting The Instrument Data

    3 Enter your desired count value (up to 1000 only) of the data and click Get Data. The data will be displayed in a text box. 4 Copy and paste the data in your intended PC application. Keysight N1913/1914A User’s Guide...

  • Page 51: Making Socket Connection

    5 Select Socket. 6 Click Test This VISA Address to test if the instrument is present. 7 Click Accept. You will then return to the Keysight Connection Expert window. Your power meter is successfully connected via socket connection. Keysight N1913/1914A User’s Guide...

  • Page 52: Figure 1-12 Power Meter Successfully Connected Via Socket Connection

    Introduction Figure 1-12 Power meter successfully connected via socket connection Keysight N1913/1914A User’s Guide...

  • Page 53: Programming Language Selection (Option 200)

    [1] HP 436A, HP 437B, and HP 438A language modes are not compatible with LAN or USBTM remote interface. [2] SCPI is the default factory setting. License is needed for the other languages to be available. Keysight N1913/1914A User’s Guide...
  • Page 54 Introduction THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1913/1914A User’s Guide...
  • Page 55 Zeroing and Calibrating the Power Meter Adapter Test Procedure Secure Blank Backlight Intensity Control Memory Erase/Secure Erase VGA Output (Optional) Warm Start Battery Information (Optional) Setting the Cable Short/Long This chapter describes the general operation of the N1913/1914A EPM Series power meters.

  • Page 56: General Power Meter Functions

    Measurement units - Single channel meters Measurement Mode Relative Mode Off Relative Mode On Linear Watt Table 2-2 Measurement units - Dual channel meters Measurement Mode Relative Mode Off Relative Mode On Ratio Linear Difference Linear Watt Keysight N1913/1914A User’s Guide...

  • Page 57: Setting The Measurement Frequency

    Frequency pop-up. Use the numeric keypad to enter the required value in the Frequency pop-up window. Figure 2-1 Frequency pop-up 3 Confirm your choice by pressing 4 Press key to close the Channel Setup screen. Keysight N1913/1914A User’s Guide...

  • Page 58: Setting The Resolution

    To set the resolution on the currently selected window: 1 Press . The current setting of the resolution is highlighted under the softkey. Resolution 2 To change this setting, press repeatedly until the required Resolution resolution setting is highlighted. Keysight N1913/1914A User’s Guide...

  • Page 59: Making Relative Measurements

    Relative setting field. 5 Confirm that the power meter is measuring the signal you want to use as the reference. This is displayed under the Result field. 6 Press the , key to highlight the Rel field. Keysight N1913/1914A User’s Guide...

  • Page 60: Figure 2-3 Numeric Display

    NOTE be displayed in the measurement window it is applied to. Relative indicator Figure 2-3 Numeric display The Rel symbol is not displayed when the associated measurement is displayed NOTE in Dual Numeric or Analog format. Keysight N1913/1914A User’s Guide...

  • Page 61: Setting Offsets

    Offset Offset Offset Factor Display Relative Offset Channel C Lower Window Display Relative Offset Freq Dep Channel Offset Factor Offset Display Relative Offset Channel D Freq Dep Channel Factor Offset Offset Figure 2-4 Simplified measurement path Keysight N1913/1914A User’s Guide...

  • Page 62: Setting Channel Offsets

    Offset value field Figure 2-5 Typical channel offset display 5 Press to highlight the Offset value field and press to display the Offset pop-up. Use the numeric keypad to enter the required value in the Offset pop-up window. Keysight N1913/1914A User’s Guide...

  • Page 63: Setting Display Offsets

    2 Select the window you wish to set the offset value on by pressing the key. The currently selected window/measurement is displayed. Meas Select 3 Use the keys to highlight the Offset setting field. 4 Press to check the Offset setting field. Keysight N1913/1914A User’s Guide...

  • Page 64: Figure 2-7 Typical Display Offset Display

    Display Offset pop-up. Use the numeric keypad to enter the required value in the Offset pop-up window. 6 Confirm your choice by pressing . Press key to complete the offset entry. The Ofs indicator is displayed if Display Offset is selected. NOTE Keysight N1913/1914A User’s Guide...

  • Page 65: Setting Frequency Dependent Offsets

    , and Tables Sensor ChC Freq. Dep. Offset For Channel D, you can select the frequency dependent offset table from the key menu followed by , and Freq. Dep. Offset Tables Sensor ChD Keysight N1913/1914A User’s Guide...

  • Page 66: Figure 2-8 Frequency Dependent Offset Tables Display

    Figure 2-8 Frequency dependent offset tables display 2 Use the keys to highlight one of the 10 table titles and press for dual channel) to highlight Table A Table B Table Keysight N1913/1914A User’s Guide...

  • Page 67: Figure 2-9 Frequency Dependent Offset Indicator

    If you enter a frequency outside the frequency range defined in the sensor calibration table or the frequency dependent offset table, the power meter uses the highest or lowest frequency point in the appropriate table to set the calibration factor and offset. Keysight N1913/1914A User’s Guide...

  • Page 68: Editing Frequency Dependent Offset Tables

    Offset Tbls screen. Freq. Dep. Offset 2 Choose the table you want to edit using the keys. Press to display the Ed it Offset screen as shown in Figure 2-10. Ed it Table Keysight N1913/1914A User’s Guide...

  • Page 69: Figure 2-10 "Edit Offset" Display With Data Added

    Figure 2-11 Edit table title pop-up – Pressing adds a new character to the right of the selected Insert Char character. – Pressing removes the selected character. Delete Char 4 Press to complete the entry. Enter Keysight N1913/1914A User’s Guide...

  • Page 70: Figure 2-12 Changing Offset Unit

    Offset pop-up window. Complete the entry by pressing the key. Figure 2-12 Changing offset unit 3 Continue adding/editing values until you have entered all the data you require. 4 When you have finished editing the table press to save the table. Done Keysight N1913/1914A User’s Guide...

  • Page 71: Selectable Frequency Dependent Offset Unit (Db Or %)

    To change the offset unit to dB, press , and 1 of 2 Offset Unit To change the offset unit to %, press , and 1 of 2 Offset Unit Keysight N1913/1914A User’s Guide...

  • Page 72: Figure 2-13 Offset Display In Engineering Unit (When The Selected Unit Is %)

    – y is optional if there are non-zero numbers after the decimal point. For example, – 0.009876 will be displayed as 9.876 e-3 – 0.0001 will be displayed as 1e-4. Figure 2-13 Offset display in engineering unit (when the selected unit is %) Keysight N1913/1914A User’s Guide...

  • Page 73: Setting Measurement Averaging

    N1913/1914A EPM Series power meters recognize different sensor types when they are connected, and configure suitable averaging automatically.

  • Page 74: Figure 2-15 Meas Avg Count Pop-Up

    5 Press to display the Meas Avg Count pop-up. Figure 2-15 Meas Avg Count pop-up 6 Use the numeric keys to enter the required value and press Enter 7 Press key to close the Channel Setup screen. Keysight N1913/1914A User’s Guide...

  • Page 75: Step Detection

    . On dual channel meters select the required channel. 2 Use the keys to select the Step Detect setting field. 3 Press to check the step detection to on or off. 4 Press key to close the Channel Setup screen. Keysight N1913/1914A User’s Guide...

  • Page 76: Measuring Pulsed Signals

    The allowable range of values is 0.001% to 100%. The default value is 1.000%. If duty cycle is enabled, then Dty Cyc is displayed. Pulse measurements are not recommended using Keysight E4412A and E4413A NOTE power sensors.

  • Page 77: Figure 2-17 Duty Cycle Setting

    Duty Cycle pop-up window. 6 Confirm your choice by pressing 7 Press key to complete the duty cycle entry. The Dty Cyc indicator is displayed as shown in Figure 2-18. Duty cycle indicator Figure 2-18 Duty cycle indicator Keysight N1913/1914A User’s Guide...
  • Page 78 In order to ensure accurate pulse power readings, the input signal must be pulsed with a rectangular pulse. Other pulse shapes (such as triangle, chirp, or Gaussian) will cause erroneous results. The pulse power on/off ratio must be much greater than the duty cycle ratio. Keysight N1913/1914A User’s Guide...

  • Page 79: Setting External Trigger For Average Power Measurement

    Trigger delay and trigger holdoff are both not applicable when the power meter NOTE is set to power sweep mode or frequency sweep mode. Keysight N1913/1914A User’s Guide...

  • Page 80: Power Sweep Mode

    TRIG TRIG TRIG TRIG Power Source Power Meter Average Power Sensor Figure 2-19 TRIG IN and TRIG OUT connection diagram between power meter and power source 3 Press . The Channel Setup screen displays as below. Keysight N1913/1914A User’s Guide...

  • Page 81: Figure 2-20 Channel Setup Display

    The symbol is displayed. Cont Trig Settings 7 Press to configure the remaining trigger parameters. The trigger Settings menu consists of two pages. Figure 2-21 shows page 1 and Figure 2-22 shows page 2. Keysight N1913/1914A User’s Guide...

  • Page 82: Figure 2-21 Trigger Setting Menu 1 Of 2

    TRIG OUT BNC port when the meter is triggered upon a completed measurement. 10 Press and select to set the trigger edge. Slope – 11 Set the trigger buffer size by sending SENSE:BUFFer:COUNt <buffer_size> command to meter using remote interface. Keysight N1913/1914A User’s Guide...
  • Page 83 General Power Meter Functions Refer to the N1913/1914A EPM Series Power Meters Programming Guide for the NOTE commands usage details. Example of command set: BUFF:COUN 100 The power meter can be remotely controlled by LAN, USB and GPIB (IEEE488) NOTE programming interfaces.

  • Page 84: Frequency Sweep Mode

    Source 9 Press to allow a TTL level high to be produced at the 1 of 2 Output rear panel TRIG OUT BNC port when the meter is triggered upon a completed measurement. Keysight N1913/1914A User’s Guide...
  • Page 85 FREQ:STEP 10 The power meter can be remotely controlled by LAN, USB and GPIB (IEEE488) NOTE programming interfaces. Refer to N1913/1914A EPM Series Power Meters Installation Guide for details. 12 Send *OPC (OPeration Complete) command to meter; to set the operation complete bit in the Standard Event Status register when all pending device operations are completed.

  • Page 86: Determine The Right Step To Be Set

    = 5 GHz with given interval of 0.5 GHz, the Step start stop should be set to Step = (f – f + Interval)/Interval stop start = (5 GHz – 1 GHz + 0.5 GHz)/0.5 GHz Keysight N1913/1914A User’s Guide...

  • Page 87: Setting Measurement Limits

    +4 dBm and +10 dBm. A fail occurs each time the output power is outside these limits as shown in Figure 2-24. Amplitude Upper limit line Fail +10 dBm Lower limit line +4 dBm Fail Frequency Figure 2-24 Limits checking results Keysight N1913/1914A User’s Guide...

  • Page 88: Setting Limits

    2 Use the keys to highlight the Limits: setting field. 3 Press to check the Limits: setting field. 4 Use the key to highlight the Minimum Limits: value field. 5 Press to display the Minimum Limit pop-up. Keysight N1913/1914A User’s Guide...

  • Page 89: Figure 2-25 Minimum Limit Pop-Up

    Maximum Limit pop-up. 9 Use the numeric keys to enter the required value and press 10 Press key to close the Measurement Setup screen. The Limits can be disabled and re-enabled by checking the Limits: setting field. NOTE Keysight N1913/1914A User’s Guide...

  • Page 90: Checking For Limit Failures

    Figure 2-26. This measurement has failed as the result is greater than the set limit level. This measurement has failed as the result is less than the set limit level. Figure 2-26 Limit failures Keysight N1913/1914A User’s Guide...

  • Page 91: Numeric Format

    Single Numeric Dual Numeric follows: – Press to select the measurement window or Meas Select measurement line you want to configure. Selected Window/ Measurements Function Field Channel Field Measurement Field Figure 2-27 Measurement Setup showing single configuration Keysight N1913/1914A User’s Guide...

  • Page 92: Single Function Measurement

    Function pop-up, and use the highlight Single. Figure 2-28 Function pop-up 3 Press to complete the entry. 4 The Meas field is set to Avg by default. 5 Press key to complete the setup and display the measurement results. Keysight N1913/1914A User’s Guide...

  • Page 93: Combined Measurement

    Function pop-up (see Figure 2-28) and use the to highlight Combined. 3 Press to complete the entry. 4 Press key to complete the setup and display the measurements results. Figure 2-30 Measurement example display Keysight N1913/1914A User’s Guide...

  • Page 94: Max Hold/Min Hold

    Input from “A”|”B” SENSe1 FEED1 block “A-A”|“A/A“ :GAIN :HOLD :REL “B-B”|“B/B“ SENSe2: “A-B”|“A/B“ Input from FEED2 SENSe2 “B-A”|“B/A“ block (N1914A only) Max Hold/ Min Hold Figure 2-31 Max hold/min hold measurement is performed on the ‘HOLD’ block Keysight N1913/1914A User’s Guide...

  • Page 95: Figure 2-32 Hold Pop-Up

    2-32). Figure 2-32 Hold pop-up 4 Press to complete the entry. 5 Press key to complete the setup and display the measurements results. Figure 2-33 Min Hold and Max Hold measurement mode indicated in the display Keysight N1913/1914A User’s Guide...

  • Page 96: Figure 2-34 Measurement Mode In Full Word

    General Power Meter Functions 6 Press to display the measurement window in full screen mode. The measurement mode will be indicated in full word in the expanded window (see Figure 2-34). Figure 2-34 Measurement mode in full word Keysight N1913/1914A User’s Guide...

  • Page 97: Recorder Output

    Set the recorder output as follows: Ensure you have selected the channel you want to set up. NOTE 1 Press to display the Measurement Setup menus. Meas Select 2 Use the keys to highlight the Rec o/p: setting field. Keysight N1913/1914A User’s Guide...

  • Page 98: Figure 2-35 Recorder Minimum Pop-Up

    8 Use the numeric keys to enter the power level you want to generate a 1 Vdc output in the Recorder Maximum pop-up and press 9 Use the key to highlight the Recorder Maximum: value field. 10 Press to display the Recorder Maximum pop-up. Keysight N1913/1914A User’s Guide...

  • Page 99: Figure 2-36 Recorder Maximum Pop-Up

    1 mW. Table 2-4 Ranges of recorder output setting 100 W 10 W 100 mW 10 mW 1 mW –10 –20 –30 –40 –50 –60 100 mW 10 mW 1 mW 100 nW 10 nW 1 nW Keysight N1913/1914A User’s Guide...

  • Page 100: Saving And Recalling Power Meter States

    To change the name of a register -See Chapter 2, “Editing a Register’s Name,” starting on page 101, otherwise press Save 3 The power meter prompts you to press to proceed. Confirm Figure 2-38 Save confirm pop-up Keysight N1913/1914A User’s Guide...

  • Page 101: Editing A Register's Name

    1 Press Save/Recall 2 Use the keys to select the required register and press . The Recall key is disabled (grayed out) when an unused register is selected. Recall Figure 2-40 Recall pop-up 3 Press Confirm Keysight N1913/1914A User’s Guide...

  • Page 102: Zeroing And Calibrating The Power Meter

    Zero – The Zeroing pop-up is displayed. On dual channel meters you can zero each channel independently or both NOTE channels sequentially by pressing the softkey - choosing Zero Zero A Zero B Zero Both Keysight N1913/1914A User’s Guide...

  • Page 103: Zero/Cal Lockout

    You can enable and disable the Zero/Cal Lockout facility from the System menu or the Cal menu as follow: Press . Similarly, press 1 of 2 Must Cal Off 1 of 2 Must Cal Off Keysight N1913/1914A User’s Guide...

  • Page 104: Calibration

    An essential part of calibrating is setting the correct reference calibration factor for the power sensor you are using. The N1913/1914A EPM Series Power Meter User’s Guide require you to set the reference calibration factor. The E-Series power sensors and N8480 Series power sensors (excluding Option CFT) set the reference calibration factor automatically.

  • Page 105: Calibration Procedure Using E-Series Power Sensors And N8480 Series Power Sensors (Excluding Option Cft)

    1 Press 2 Connect the power sensor to the POWER REF output. 3 Press the softkey to start the calibration routine. The Calibrating pop-up is then displayed (the power meter automatically turns on the POWER REF output). Keysight N1913/1914A User’s Guide...

  • Page 106: Calibration Procedure Using 8480 Series Power Sensors And N8480 Series Power Sensors (With Option Cft)

    Use the numeric keypad to enter the required value in the pop-up window. 2 Confirm your choice by pressing 3 Press the to start the calibration routine. The Calibrating pop-up is then displayed (the power meter automatically turns on the POWER REF output). Keysight N1913/1914A User’s Guide...

  • Page 107: Power Sensor Connection Requirements

    Keysight E9304 H18 Keysight E9304 H19 Keysight 8481D Prior to the power meter being calibrated, a Keysight 11708A 30 dB reference attenuator should be connected between the power sensor and the reference calibrator. Remove this Keysight 8484A attenuator from the power sensor input before making measurements.
  • Page 108 Connection Requirements Keysight 8485D Prior to the power meter being zeroed and calibrated, a Keysight 11708A 30 dB reference attenuator and an APC 3.5 (f) to 50 Ω (m) N-Type adapter (08485-60005) should be connected between the power sensor and the reference calibrator. Remove this attenuator from the power sensor input before making measurements.

  • Page 109: Adapter Test Procedure

    Typical specifications Frequency S-Parameter 08485-60005 08487-60001 S11 and S22 −58 dB −53 dB −0.006908 dB (log mag) 50 MHz −0.00665 dB (log mag) S12 and S21 0.999205 dB (lin mag) 0.999235 dB (lin mag) <0.1% <0.1% Keysight N1913/1914A User’s Guide...

  • Page 110: Figure 2-44 System Calibration Setup

    Cal Kit (Open, Short, and Load). 8 When the wizard prompts for a through adapter connection, attach the adapter-under-test as the unknown adapter. 9 The firmware will estimate the delay, which should be approximately 0.11 ns. Keysight N1913/1914A User’s Guide...
  • Page 111 PNA Port 2 1 Leave the adapter-under-test in place - refer to step 2 Record the S-Parameter readings (LOG_MAG) for the PNA as dutS11, dutS12, dutS22, and dutS21 respectively and compare them against the typical specifications. Keysight N1913/1914A User’s Guide...

  • Page 112: Blank Screen

    To restore the display, press any buttons on the front panel. To access this feature, press and select . In the Service 1 of 2 Service menu, press and select . Press 1 of 2 Display Blank Screen Figure 2-45 Blank screen Keysight N1913/1914A User’s Guide...

  • Page 113: Secure Blank

    2 In the Service menu, press and select 1 of 2 Display 3 Press . The Enter 6-digit Password pop-up is displayed. You are Secure Blank to enter a 6-digit password upon activating the secure blank feature (see Figure 2-47). Keysight N1913/1914A User’s Guide...

  • Page 114: Figure 2-47 Enter 6-Digit Password Pop-Up

    5 A warning message pop-up will be displayed if the entered password is not 6-digits (see Figure 2-49). This warning will appear for two seconds before the Enter 6-digit Password pop-up (Figure 2-47) is displayed again. Figure 2-48 6-digit password entered Keysight N1913/1914A User’s Guide...

  • Page 115: Figure 2-49 Warning Message

    7 A warning message pop-up will be displayed if the password entered is different from the initial password (see Figure 2-51). This warning will appear for two seconds before the enter password pop-up is displayed again. Keysight N1913/1914A User’s Guide...

  • Page 116: Figure 2-51 Warning Message

    Upon an unsuccessful third attempt, you will need to wait for two hours with the power meter powered on before you can reenter the password. You are then allowed up to three attempts of password entry again. The whole cycle of password entry will then be repeated. Keysight N1913/1914A User’s Guide...

  • Page 117: Figure 2-53 Enter Password To Restore Display

    If you have forgotten the 6-digit password and need to operate the meter NOTE immediately, perform the Memory Erase operation. This operation will erase all data stored in the meter. Refer to “Memory Erase/Secure Erase” on page 119 for more details. Keysight N1913/1914A User’s Guide...

  • Page 118: Backlight Intensity Control

    1 of 2 Backlight Figure 2-54 Backlight intensity control Press to increase the backlight’s brightness. Brightness + Press to decrease the backlight’s brightness. Brightness – Figure 2-55 Increase or decrease the backlight brightness Keysight N1913/1914A User’s Guide...

  • Page 119: Memory Erase/Secure Erase

    (see Figure 2-56). 2 During memory erase, the splash screen will display “Clearing Memory...”. When memory erase is complete, “Clearing Memory...done” will be displayed. Press simultaneously Figure 2-56 Activate memory erase using combo keys Keysight N1913/1914A User’s Guide...

  • Page 120: Figure 2-57 Secure Erase

    1 of 2 Service (see Figure 2-57). Secure Erase Figure 2-57 Secure Erase 2 A confirmation pop-up will be displayed, press to begin secure erase Confirm (see Figure 2-58). Figure 2-58 Confirmation to begin secure erase Keysight N1913/1914A User’s Guide...

  • Page 121: Figure 2-59 Warning Pop-Up

    General Power Meter Functions 3 A warning pop-up will be displayed to inform you that the secure erase is in progress (see Figure 2-59). Figure 2-59 Warning pop-up Keysight N1913/1914A User’s Guide...

  • Page 122: Vga Output (Optional)

    1 Press and select 1 of 2 Service 2 In the Service menu, press and select 1 of 2 Display 3 Press to toggle ON/OFF the VGA feature (see Figure 2-60). Display Figure 2-60 VGA toggle ON/OFF Keysight N1913/1914A User’s Guide...

  • Page 123: Warm Start

    1 of 2 Service 2 In the Service menu, press to enable or disable the warm Warm Start Off/On start feature. This feature is set to ON by default (see Figure 2-61). Figure 2-61 Enable/disable warm start feature Keysight N1913/1914A User’s Guide...

  • Page 124: Battery Information (Optional)

    “Running under battery power” pop-up There is a battery indicator on the display screen (see Figure 2-63) when the power meter is running under battery power. The battery level is indicated by the darker blue box inside the battery indicator. Keysight N1913/1914A User’s Guide...

  • Page 125: Battery Menu

    Battery Menu For power meters with battery option, to access the battery menu, 1 Press and select 1 of 2 Service 2 In the Service menu, press and select 1 of 2 Battery Figure 2-64 Battery menu Keysight N1913/1914A User’s Guide...

  • Page 126: Figure 2-65 Battery Status Display

    “Battery Power Low” pop-up message will be displayed. In addition, the message “Battery Low” will appear at the bottom of the display screen with the battery indicator filled with red (see Figure 2-66). Low battery indicator Figure 2-66 Low battery indicator Keysight N1913/1914A User’s Guide...

  • Page 127: Figure 2-67 Display Backlight Control

    Timed mode is selected, the backlight will turn OFF within 10 minutes after the last keypress. Pressing any keys on the front panel will turn the backlight ON again. On instrument preset, the backlight will be set to ON. Figure 2-67 Display backlight control Keysight N1913/1914A User’s Guide...

  • Page 128: Battery General Information

    When the battery powered operation time of your power meter becomes noticeably shorter, it is time to order a new battery. To obtain a replacement battery, order Keysight part number N1913-37900. Keysight N1913/1914A User’s Guide...
  • Page 129 Up to 7 hours 20 minutes Up to 6 hours 15 minutes Up to 7 hours 30 minutes N1914A Use the battery only for its intended purpose. Only use the Keysight battery CAUTION option power meter models to charge the battery.

  • Page 130: Setting The Cable Short/Long

    General Power Meter Functions Setting the Cable Short/Long When connecting the power sensor with Keysight 11730F power sensor cable, 61 m (200 ft), you are required to change the cable setting from Short (default setting) to Long, or an error will occur when the power sensor is connected.
  • Page 131 Keysight N1913/1914A EPM Series Power Meters User’s Guide Using E9300 E-Series Power Sensors Introduction Power Meter Configuration Measurement Accuracy Measuring Spread Spectrum and Multitone Signals Measuring TDMA Signals Electromagnetic Compatibility (EMC) Measurements Measurement Accuracy and Speed This chapter describes how to use your E9300 E-Series power sensors with...

  • Page 132: Introduction

    They are ideally suited to the average power measurement of multi-tone and spread spectrum signals such as CDMA, W-CDMA and digital television formats. Please refer to the documentation supplied with your E-Series E9300 power sensor for specification and calibration information. Keysight N1913/1914A User’s Guide...

  • Page 133: Using E9300 E-Series Power Sensors

    Using E9300 E-Series Power Sensors Power Meter Configuration The N1913/1914A EPM Series power meters automatically recognize an E-Series E9300 power sensor when it is connected. The sensor calibration data is automatically read by the power meter. The power meter also configures the...

  • Page 134: Default Channel Setup

    Default Channel Setup When an E-Series E9300 power sensor is connected the following Channel Setup is automatically configured. Carrying out a Preset returns the power meter to this configuration. Figure 3-2 E9300 E-Series sensor default channel setup Keysight N1913/1914A User’s Guide...

  • Page 135: Measurement Accuracy

    These power sensors connect directly to the POWER REF. E9300H E9301A E9301H E9304A E9300B These power sensors are configured with an attenuator. Prior to calibration this attenuator must be E9301B removed. Replace the attenuator before making measurements. Keysight N1913/1914A User’s Guide...
  • Page 136 . On dual channel meters select the required channel. 7 Use the keys to highlight the Frequency value field and press to display the Frequency pop-up. Use the numeric keypad to enter the required value in the Frequency pop-up window. Keysight N1913/1914A User’s Guide...

  • Page 137: Frequency Pop-Up

    Channel Setup screen. 10 Proceed to make the measurement. 11 Reconnect any required attenuators or adaptors and connect the power sensor to the signal to be measured. The corrected measurement result is displayed. Keysight N1913/1914A User’s Guide...

  • Page 138: Measuring Spread Spectrum And Multitone Signals

    4A power sensors can measure +20 dBm average power even in the presence of +13 dB peaks but the peak pulse duration must be less than 10 microseconds. For high power applications, such as base-station testing, the E9300/1B and E9300/ 1H are recommended. Keysight N1913/1914A User’s Guide...

  • Page 139: Cdma Signal Measurements

    Wideband CDMA error of E-Series E9300 power sensor versus corrected CW sensor Lower Range Error Upper Range Error 0.05 -0.05 -0.1 -0.15 -0.2 (E9300 E-Series power Power (dBm) sensor only shown) Figure 3-6 CDMA (IS-95A): 9Ch Fwd Keysight N1913/1914A User’s Guide...

  • Page 140: Multitone Signal Measurements

    MHz. 110% 105% Typical upper range 100% calibration factor Frequency (GHz) 110% 105% Typical lower range 100% calibration factor Frequency (GHz) Figure 3-7 Calibration factors versus frequency Keysight N1913/1914A User’s Guide...

  • Page 141: Measuring Tdma Signals

    . On dual channel meters, select the required channel. 2 Use the keys to select the Filter setting field. 3 Press and use the keys to step through the available settings. Select MAN. 4 Use the key to select the Meas Avg: value field. Keysight N1913/1914A User’s Guide...

  • Page 142: Achieving Stable Results With Gsm Signals

    Length Length Experimentally, a setting of 148 gives optimum results although settings in the order of 31 or 32 give acceptable results if a faster measurement is required. Keysight N1913/1914A User’s Guide...

  • Page 143: Electromagnetic Compatibility (Emc) Measurements

    However, the presence of any dc voltages mixed with the signal has an adverse effect on the accuracy of the power measurement. E9304A sensor is DC coupled. DC voltages in excess of the maximum value CAUTION (5 VDC) can damage the sensing diode. Keysight N1913/1914A User’s Guide...

  • Page 144: Measurement Accuracy And Speed

    The power meter has no internal ranges. The only ranges you can set are those of the E9300 E-Series power sensors (and other Keysight Technologies E-Series power sensors). With an E-Series E9300 power sensor the range can be set either automatically or manually.

  • Page 145: Measurement Considerations

    For example, using an E9300/1/4A sensor, where the range switch point is –10 ± 0.5 dBm in a pulsed signal configured as follows: Characteristic Value Peak Amplitude –6 dBm Duty Cycle The calculated average power is –12 dBm. Keysight N1913/1914A User’s Guide...
  • Page 146 Attention must be paid to signals whose average power levels are in the low power path range whilst their peaks are in the high power path range. You can achieve best accuracy by selecting the high power path or best speed by selecting the low power path. Keysight N1913/1914A User’s Guide...
  • Page 147 Keysight N1913/1914A EPM Series Power Meters User’s Guide Using E4410 E-Series Power Sensors Introduction Power Meter Configuration Measurement Accuracy This chapter describes how to use your E4410 E-Series power sensors with N1913/1914A EPM Series power meters.

  • Page 148: Using E4410 E-Series Power Sensors Introduction

    Multi-tone signals (containing multiple frequency components), or signals with significant harmonic content (> –45 dBc) may introduce measurement errors at high power levels. Please refer to the documentation supplied with your E-Series E4410 power sensor for specification and calibration information. Keysight N1913/1914A User’s Guide...

  • Page 149: Power Meter Configuration

    Using E4410 E-Series Power Sensors Power Meter Configuration The N1913/1914A EPM Series power meters automatically recognize an E-Series E4410 power sensor when it is connected. The sensor calibration data is automatically read by the power meter. Also, the power meter automatically...

  • Page 150: Default Channel Setup

    Default Channel Setup When an E-Series E4410 power sensor is connected the following Channel Setup is automatically configured. Carrying out a Preset returns the channel to this configuration. Figure 4-2 E-Series E4410 sensor default channel setup Keysight N1913/1914A User’s Guide...

  • Page 151: Measurement Accuracy

    The Zeroing pop-up is displayed. Zero 4 Connect the power sensor to the POWER REF output. 5 Press and the channel softkey to start the calibration routine. The Calibrating pop-up is then displayed. Keysight N1913/1914A User’s Guide...

  • Page 152: Figure 4-3 Frequency Pop-Up

    8 Confirm your choice by pressing 9 Press key to close the Channel Setup screen. Make the measurement now. 10 Connect the power sensor to the signal to be measured. The corrected measurement result is displayed. Keysight N1913/1914A User’s Guide...
  • Page 153 Keysight N1913/1914A EPM Series Power Meters User’s Guide Using 8480 Series Power Sensors Introduction Power Meter Configuration Measurement Accuracy Frequency Specific Calibration Factors Sensor Calibration Tables This chapter describes how to use your 8480 Series power sensors with N1913/ 1914A EPM Series power meter.

  • Page 154: Using 8480 Series Power Sensors

    Likewise, they cannot be used to make peak or time gated measurements. Please refer to the documentation supplied with your Keysight 8480 Series power sensors for specification and calibration information. Keysight N1913/1914A User’s Guide...

  • Page 155: Power Meter Configuration

    Using 8480 Series Power Sensors Power Meter Configuration The N1913/1914A EPM Series power meters automatically recognize an 8480 Series power sensor when it is connected. The averaging settings shown in Figure 5-1 are automatically configured. Resolution Setting Maximum Sensor Power...

  • Page 156: Default Channel Setup

    Using 8480 Series Power Sensors Default Channel Setup Figure 5-2 shows the Channel Setup configured automatically. Presetting returns the power meter to this configuration. Figure 5-2 8480 Series sensor default channel setup Keysight N1913/1914A User’s Guide...

  • Page 157: 8480 Series Sensors Connection Requirements

    POWER REF. Remove this adapter before making measurements. 8485D Prior to calibration, a Keysight 11708A 30 dB reference attenuator and an APC 3.5 (f) to 50 Ω (m) N-Type adapter (08485-60005) should be connected between the power sensor and the POWER REF.

  • Page 158: Measurement Accuracy

    However, if you are making measurements on a wide range of signal frequencies, a sensor table is more effective as you only need to enter the frequency of the signal you are measuring. The power meter automatically selects and applies the calibration factor from the selected table. Keysight N1913/1914A User’s Guide...

  • Page 159: Frequency Specific Calibration Factors

    4 To change the settings, press the channel . The reference calibration REF CF factor pop up window is displayed as shown in Figure 5-3. Use the numeric keypad to enter the required value in the Ref Cal Factor pop-up menu. Keysight N1913/1914A User’s Guide...

  • Page 160: Figure 5-3 Reference Calibration Factor Pop-Up Window

    . The value is displayed on the Cal Fac field. Offset Does this setting match the value for the sensor? (The power sensor reference NOTE calibration factor can normally be found above the calibration factors table on the power sensor body.) Keysight N1913/1914A User’s Guide...

  • Page 161: Figure 5-4 Calibration Factor Pop-Up Window

    Figure 5-4 Calibration factor pop-up window 11 Press to complete the entry. 12 Connect the power sensor to the signal to be measured. 13 The corrected measurement result is displayed. Calibration Factor Figure 5-5 Calibration factor display Keysight N1913/1914A User’s Guide...
  • Page 162 12 The corrected measurement result is displayed. When no sensor tables are selected and display mode is Single Numeric NOTE chosen, the calibration factor used for the measurement is displayed in the upper window as shown in Figure 5-5. Keysight N1913/1914A User’s Guide...

  • Page 163: Sensor Calibration Tables

    Use sensor calibration tables when you want to make power measurements over a range of frequencies using one or more power sensors. The N1913/1914A EPM Series power meters are capable of storing 20 sensor calibration tables each containing up to 80 frequency points. The power meter is supplied with a set of 9 predefined sensor calibration tables plus a “100%”...

  • Page 164: Figure 5-6 Sensor Table Selected

    Done Figure 5-7 shows which offset table is selected. Sensor Table 5 Selected Figure 5-7 Frequency dependent offset indicator 4 To change the frequency, press and use the keys to highlight the Frequency field. Keysight N1913/1914A User’s Guide...

  • Page 165: Figure 5-8 Frequency/Calibration Table Display

    NOTE the sensor table identifier is displayed in the upper window. Also, pressing Offset displays the frequency you entered and calibration factor for each channel derived from the selected sensor tables. Figure 5-8 Frequency/calibration table display Keysight N1913/1914A User’s Guide...

  • Page 166: Editing/Generating Sensor Calibration Tables

    [b] The 8482B and 8482H power sensors use the same data as the 8482A. There are also ten sensor calibration tables named CUSTOM_0 through CUSTOM_9. These tables do not contain any data when the power meter is shipped from the factory. Keysight N1913/1914A User’s Guide...

  • Page 167: Figure 5-9 "Sensor Tbls" Screen

    Sensor Tbls screen. Sensor Cal Tables Figure 5-9 “Sensor Tbls” screen 2 Choose the table you want to edit using the keys. Press to display the Ed it Cal screen as shown in Figure 5-10. Ed it Table Keysight N1913/1914A User’s Guide...

  • Page 168: Figure 5-10 "Edit Cal" Display

    Figure 5-11 Edit table title pop-up – Pressing adds a new character to the right of the selected Insert Char character. – Pressing removes the selected character. Delete Char 4 Press to complete the entry. Enter Keysight N1913/1914A User’s Guide...

  • Page 169: Table

    If you measure a signal with a frequency outside the frequency range defined in the sensor calibration table, the power meter uses the highest or lowest frequency point in the sensor calibration table to calculate the offset Keysight N1913/1914A User’s Guide...

  • Page 170: Pre-Installed Calibration Table Contents

    14 GHz 93.2 3 GHz 98.6 15 GHz 4 GHz 98.6 16 GHz 5 GHz 98.5 17 GHz 92.7 6 GHz 98.5 18 GHz 91.8 7 GHz 98.6 Keysight 8482A 8 GHz 98.7 9 GHz 99.5 Keysight N1913/1914A User’s Guide...

  • Page 171: Figure 3-2

    24 GHz 94.3 32 GHz 93.7 25 GHz 92.4 33 GHz 93.7 26 GHz 92.2 34 GHz 94.9 26.5 GHz 92.1 34.5 GHz 94.5 Keysight R8486D 35 GHz 94.4 97.6 36 GHz 93.7 50 MHz 97.6 Keysight N1913/1914A User’s Guide...
  • Page 172 8 GHz 98.3 35 GHz 97.6 10 GHz 98.1 36 GHz 11 GHz 97.8 37 GHz 98.2 12 GHz 97.6 38 GHz 97.4 12.4 GHz 97.6 39 GHz 97.6 14 GHz 97.4 40 GHz 16 GHz Keysight N1913/1914A User’s Guide...
  • Page 173 50 MHz 17 GHz 33.5 GHz 91.3 18 GHz 96.3 34.5 GHz 19 GHz 95.9 35 GHz 91.7 20 GHz 95.2 36 GHz 91.5 21 GHz 95.6 37 GHz 92.1 22 GHz 95.5 38 GHz 91.7 Keysight N1913/1914A User’s Guide...
  • Page 174 44 GHz 88.7 29 GHz 94.4 45 GHz 88.2 30 GHz 46 GHz 31 GHz 93.7 47 GHz 86.4 32 GHz 93.8 48 GHz 85.3 33 GHz 49 GHz 84.7 34 GHz 93.2 50 GHz 82.9 Keysight N1913/1914A User’s Guide...
  • Page 175 Default Channel Setup N8480 Series Sensors Connection Requirements N8480 Series Power Sensors (excluding Option CFT) N8480 Series Power Sensors with Option CFT This chapter describes how to use your N8480 Series power sensors with N1913/ 1914A EPM Series power meters.

  • Page 176: Introduction

    Likewise, they cannot be used to make peak or time gated measurements. Please refer to the documentation supplied with your Keysight N8480 Series power sensors for specification and calibration information. [1] The calibration factor table stored in the EEPROM is not applicable for N8480 Series sensors with Option CFT.

  • Page 177: Using N8480 Series Power Sensors

    Using N8480 Series Power Sensors Power Meter Configuration Changes The N1913/1914A EPM Series power meter recognizes when a N8480 Series power sensor is connected. The N8480 Series power sensors’ (excluding Option CFT) calibration data is automatically read by the power meter. In addition, the...

  • Page 178: Default Channel Setup

    When a N8480 Series power sensor is connected, the following Channel Setup is automatically configured. Presetting returns the channel to this configuration. Figure 6-2 N8480 Series sensor (excluding Option CFT) default channel setup Figure 6-3 N8480 Series sensor with Option CFT default channel setup Keysight N1913/1914A User’s Guide...

  • Page 179: N8480 Series Sensors Connection Requirements

    POWER REF.Remove this adapter before making measurements. N8487A This sensor requires an APC 2.4 (f) to 50 Ω (m) N-Type adapter (08487-60001) to connect to the N8488A POWER REF. Remove this adapter before making measurements. Keysight N1913/1914A User’s Guide...

  • Page 180: N8480 Series Power Sensors (Excluding Option Cft)

    – Connect the power sensor to the POWER REF output. – Press . (For dual channel meters, press Zero + Cal as required). Zero + Cal Zero + Cal A Zero + Cal B Keysight N1913/1914A User’s Guide...

  • Page 181: Figure 6-4 Frequency Pop-Up

    6 Confirm your choice by pressing 7 Press key to close the Channel Setup screen. Proceed to make the measurement. 8 Connect the power sensor to the signal to be measured. The corrected measurement result is displayed. Keysight N1913/1914A User’s Guide...

  • Page 182: N8480 Series Power Sensors With Option Cft

    Using this method requires the following steps: 1 Zero and calibrate the power meter/sensor combination. 2 Set the calibration factor value for the frequency of the signal you want to measure. 3 Proceed to make the measurement. Keysight N1913/1914A User’s Guide...

  • Page 183: Figure 6-5 Reference Calibration Factor Pop-Up Window

    The Zeroing pop-up is displayed. Zero 7 Connect the power sensor to the POWER REF output. 8 Press and the channel softkey to start the calibration routine. The Calibrating pop-up is then displayed. Keysight N1913/1914A User’s Guide...

  • Page 184: Figure 6-6 Calibration Factor Pop-Up Window

    Cal Fac value field and press to display the Cal Factor pop-up. Use the numeric keypad to enter the required value in the Cal Factor pop-up window. Figure 6-6 Calibration factor pop-up window Keysight N1913/1914A User’s Guide...

  • Page 185: Figure 6-7 Calibration Factor Displayed

    REF CFs REF CF 3 Use the numeric keypad to enter 99.8 in the Ref Cal Factor pop-up window. 4 Press to complete the entry. 5 Press and the channel softkey. The Zeroing pop-up is displayed. Zero Keysight N1913/1914A User’s Guide...
  • Page 186 12 The corrected measurement result is displayed. When no sensor tables are selected and display mode is Single Numeric NOTE chosen, the calibration factor used for the measurement is displayed in the upper window as shown in Figure 6-7. Keysight N1913/1914A User’s Guide...

  • Page 187: Sensor Calibration Tables

    Use sensor calibration tables when you want to make power measurements over a range of frequencies using one or more power sensors. The N1913/1914A EPM Series power meters are capable of storing 20 sensor calibration tables, each containing up to 80 frequency points. The power meter is supplied with a set of nine predefined sensor calibration tables plus a “100%”...

  • Page 188: Selecting A Sensor Calibration Table

    Procedure Select sensor calibration table as follows: 1 Press Tables Sensor Cal Tables 2 Use the keys to highlight one of the 20 table titles and press to highlight Table Figure 6-8 Sensor table selected Keysight N1913/1914A User’s Guide...

  • Page 189: Figure 6-9 Frequency Dependent Offset Indicator

    If you enter a frequency outside the frequency range defined in the sensor calibration table, the power meter uses the highest or lowest frequency point in the sensor calibration table to set the calibration factor. Keysight N1913/1914A User’s Guide...

  • Page 190: Figure 6-10 Frequency/Calibration Table Display

    NOTE the sensor table identifier is displayed in the upper window. Also, pressing Offset displays the frequency you entered and calibration factor for each channel derived from the selected sensor tables. Figure 6-10 Frequency/calibration table display Keysight N1913/1914A User’s Guide...

  • Page 191: Editing/Generating Sensor Calibration Tables

    Predefined sensor calibration factor table stored in power meter is not NOTE applicable for Keysight N8480 Series power sensors with Option CFT. Therefore, users are required to create a new sensor calibration table for the sensors when a sensor calibration table is needed.

  • Page 192: Figure 6-11 "Sensor Tbls" Screen

    Sensor Tbls screen. Sensor Cal Tables Figure 6-11 “Sensor Tbls” screen 2 Choose the table you want to edit using the keys. Press to display the Ed it Cal screen as shown in Figure 6-12. Ed it Table Keysight N1913/1914A User’s Guide...

  • Page 193: Figure 6-12 "Edit Cal" Display

    Figure 6-13 Edit table title pop-up – Pressing adds a new character to the right of the selected Insert Char character. – Pressing removes the selected character. Delete Char 4 Press to complete the entry. Enter Keysight N1913/1914A User’s Guide...
  • Page 194 If you measure a signal with a frequency outside the frequency range defined in the sensor calibration table, the power meter uses the highest or lowest frequency point in the sensor calibration table to calculate the offset Keysight N1913/1914A User’s Guide...
  • Page 195 Keysight N1913/1914A EPM Series Power Meters User’s Guide Using U2000 Series USB Power Sensors Introduction Power Meter Configuration Measurement Accuracy Electromagnetic Compatibility (EMC) Measurements Measurement Accuracy and Speed This chapter describes how to use your U2000 Series USB power sensors with...

  • Page 196: Using U2000 Series Usb Power Sensors

    N1913A/N1914A EPM Series power meters. [1] November 1986 Hewlett-Packard Journal pages 14-2, “Diode Integrated Circuits for Milimeter-Wave Applications. [2] Refer to U2000 Series Operating and Service Guide for maximum power handling specifications. Keysight N1913/1914A User’s Guide...

  • Page 197: Power Meter Configuration

    Using U2000 Series USB Power Sensors Power Meter Configuration The N1913/1914A EPM Series power meters automatically recognize an U2000 Series USB power sensor when it is connected. The sensor calibration data is automatically read by the power meter. The power meter also configures the...

  • Page 198: Figure 7-1 U2000 Series Auto-Averaging Settings

    –45 dBm –35 dBm 128 1024 1024 1024 –25 dBm –55 dBm –45 dBm 512 1024 1024 1024 –30 dBm –60 dBm –50 dBm Minimum Sensor Power Within a Range Figure 7-1 U2000 Series auto-averaging settings Keysight N1913/1914A User’s Guide...

  • Page 199: Default Channel Setup

    When an U2000 Series USB power sensor is connected, the following Channel Setup is automatically configured. Carrying out a Preset returns the power meter to this configuration. Figure 7-2 U2000 Series USB power sensor default channel setup Keysight N1913/1914A User’s Guide...

  • Page 200: Measurement Accuracy

    These power sensors are configured with an attenuator. Do not remove the attenuator when performing U2001B external zeroing. Procedure 1 Zero the power meter/power sensor combination. 2 Ensure the power sensor is disconnected from any signal source. 3 Press and the channel softkey. Select the required channel. Zero Keysight N1913/1914A User’s Guide...
  • Page 201 Channel Setup screen. 8 Proceed to make the measurement. 9 Reconnect any required attenuators or adaptors and connect the power sensor to the signal to be measured. The corrected measurement result is displayed. Keysight N1913/1914A User’s Guide...

  • Page 202: Electromagnetic Compatibility (Emc) Measurements

    However, the presence of any dc voltages mixed with the signal has an adverse effect on the accuracy of the power measurement. The U2004A sensor is DC coupled. DC voltages in excess of the maximum CAUTION value (5 VDC) can damage the sensing diode. Keysight N1913/1914A User’s Guide...

  • Page 203: Measurement Accuracy And Speed

    The default is AUTO. In AUTO the range crossover value depends on the sensor model being used. Sensor Range Crossover Values – U2000A, U2001A, U2002A, U2004A 10 dBm + 1 dB U2000H, U2001H, U2002H 0 dBm + 1 dB U2000B, U2001B dBm + 1 dB Keysight N1913/1914A User’s Guide...

  • Page 204: Measurement Considerations

    For example, using an U2000/1/4A sensor, where the range switch point is –10 ± 1 dBm in a pulsed signal configured as follows: Characteristic Value Peak Amplitude –6 dBm Duty Cycle The calculated average power is –12 dBm. Keysight N1913/1914A User’s Guide...
  • Page 205 Attention must be paid to signals whose average power levels are in the low power path range whilst their peaks are in the high power path range. You can achieve best accuracy by selecting the high power path or best speed by selecting the low power path. Keysight N1913/1914A User’s Guide...
  • Page 206 Using U2000 Series USB Power Sensors THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1913/1914A User’s Guide...
  • Page 207 Keysight N1913/1914A EPM Series Power Meters User’s Guide Using U8480 Series USB Thermocouple Sensors Introduction Power Meter Configuration Measurement Accuracy Zeroing Calibrating Zero+Cal FDO Table Editing Reference Manual This chapter describes how to use your U8480 Series USB thermocouple sensors...

  • Page 208: Using U8480 Series Usb Thermocouple Sensors

    RF or microwave power through the heating effect it has on a terminating load. It measures power from –35 dBm to 20 dBm, at a DC to 33 GHz frequency range. Please refer to the documentation supplied with your U8480 Series USB thermocouple sensors for specifications and calibration information. Keysight N1913/1914A User’s Guide...

  • Page 209: Power Meter Configuration

    Using U8480 Series USB Thermocouple Sensors Power Meter Configuration The N1913/1914A EPM Series power meters automatically recognize an U8480 Series USB thermocouple sensor when it is connected. The sensor calibration data is automatically read by the power meter. The power meter also configures...

  • Page 210: Default Channel Setup

    When an U8480 Series USB thermocouple sensor is connected, the following Channel Setup is automatically configured. Carrying out a Preset returns the power meter to this configuration. The U8480 Series thermocouple sensor does not support auto-ranging. Figure 8-2 U8480 Series USB power sensor default channel setup Keysight N1913/1914A User’s Guide...

  • Page 211: Measurement Accuracy

    . On dual channel meters select the required channel. 5 Use the keys to highlight the Frequency value field and press to display the Frequency pop-up. Use the numeric keypad to enter the required value in the Frequency pop-up window. Keysight N1913/1914A User’s Guide...

  • Page 212: Figure 8-3 Frequency Pop-Up

    Channel Setup screen. 8 Proceed to make the measurement. 9 Reconnect any required attenuators or adaptors and connect the thermocouple sensor to the signal to be measured. The corrected measurement result is displayed. Keysight N1913/1914A User’s Guide...

  • Page 213: Zeroing

    Using U8480 Series USB Thermocouple Sensors Zeroing The N1913/1914A EPM Series power meters support the ability to perform zeroing on the U8480 USB thermocouple sensor via the front panel and SCPI. However, the N1913/1914A EPM Series power meters do not support the choosing of the zeroing type and auto zeroing for the U8480 USB thermocouple sensor.

  • Page 214: Figure 8-5 Zeroing Error Pop-Up Message

    Using U8480 Series USB Thermocouple Sensors Figure 8-5 Zeroing error pop-up message Error messages will be logged in the Error Log in System > Error List. Keysight N1913/1914A User’s Guide...

  • Page 215: Calibrating

    Calibrating The N1913/1914A EPM Series power meters are able to perform calibration for the U8480 USB thermocouple sensor via the front panel and SCPI. The N1913/ 1914A EPM Series power meters also support auto calibration (Auto Cal) for the U8480 USB thermocouple sensor. Both internal (Int) and external (Ext) calibration is supported by the N1913/1914A EPM Series power meters.

  • Page 216: Figure 8-7 Calibration Pop-Up Message

    Figure 8-7 Calibration pop-up message Should an error occur during calibration, the following pop-up message will appear: Figure 8-8 Calibration error pop-up message Error messages will be logged in the Error Log in System > Error List. Keysight N1913/1914A User’s Guide...

  • Page 217: Zero+Cal

    Using U8480 Series USB Thermocouple Sensors Zero+Cal The N1913/1914A EPM Series power meters are able to perform Zero+Cal for the U8480 USB thermocouple sensor via the front panel and SCPI. The Zero+Cal softkey will be greyed out if no sensor is connected to that particular channel.

  • Page 218: Reference Manual

    Figure 8-11 QR code screen To exit this screen, you may use either one of the following steps: 1 Press any front panel key. 2 Place the N1913/1914A EPM Series power meters in remote (RMT) mode. Keysight N1913/1914A User’s Guide...
  • Page 219 Keysight N1913/1914A EPM Series Power Meters User’s Guide Maintenance Self Test Error Messages Operator Maintenance Connector Maintenance Contacting Keysight Technologies Erasing Memory Data Returning Your Power Meter for Service This chapter describes the built-in tests, error messages and general maintenance.

  • Page 220: Maintenance

    Front Panel Selection of Self Tests Press to access the Sel f Test menu that 1 of 2 Service Sel f Test consists of the following: – Instrument Self Test – Keyboard – Bitmaps Displays – RTC Battery – Time Base Keysight N1913/1914A User’s Guide...

  • Page 221: Instrument Self Test

    Figure 9-1 Self test complete When the test is complete, the result will be displayed. Press to return to Done the Service menu. If the self test failed, information about the failure is displayed on the screen. Keysight N1913/1914A User’s Guide...

  • Page 222: Remote Testing

    Test Point Voltages An array of test on various DC voltages inside power meter. Calibrator The reference calibrator is turned on (indicated by the POWER REF LED) and measured internally. A pass or fail result is returned. Keysight N1913/1914A User’s Guide...
  • Page 223 An error will be logged in the error list if the test fails. Channel CW Path A brief test on CW meter linearity performance. Ensure that all power sensors have been disconnected from the meter before NOTE performing self-test. Keysight N1913/1914A User’s Guide...

  • Page 224: Error Messages

    Other errors can also be generated when the power meter is being operated over the remote interface. These errors also display the error indicator and are written to the error queue. Error Indicator Figure 9-2 Error indicator position Keysight N1913/1914A User’s Guide...
  • Page 225 Error List Clear Errors To delete all the errors in the queue remotely use: – the *CLS (clear status) command. The error queue is also cleared when the instrument power has been switched off. Keysight N1913/1914A User’s Guide...

  • Page 226: Error Message List

    An invalid character was found in the number specified for a parameter value. For example, SENS:AVER:COUN 128#H. – Exponent too large A numeric parameter was found whose exponent was larger than 32,000. For example, SENS:COUN 1E34000. Keysight N1913/1914A User’s Guide...
  • Page 227 A legal block data element was encountered but not allowed by the power meter at this point. For example, SYST:LANG #15FETC?. – Expression data not allowed A legal expression data was encountered but not allowed by the power meter at this point. For example, SYST:LANG (5+2). Keysight N1913/1914A User’s Guide...
  • Page 228 When CAL[1|2]:RCAL is set to ON and the sensor currently connected to Channel A has not been zeroed and calibrated, then any command which would normally return a measurement result (for example FETC?, READ?, or MEAS?) will generate this error message. Keysight N1913/1914A User’s Guide...
  • Page 229 The power input to Channel A exceeds the power sensor’s maximum range. – Data questionable;Input Overload ChA The power input to Channel A exceeds the power sensor’s maximum range. – Data questionable;Input Overload ChB The power input to Channel B exceeds the power sensor’s maximum range. Keysight N1913/1914A User’s Guide...
  • Page 230 – System error;Sensor EEPROM Read Failed - unknown EEPROM table format This indicates a failure with your E-Series Power Sensor. Refer to your power sensor manual for details on returning it for repair. Keysight N1913/1914A User’s Guide...
  • Page 231 A command was received which sends data to the output buffer, but the output buffer contained data from a previous command (the previous data is not overwritten). The output buffer is cleared when power has been off, or after *RST (reset) command has been executed. Keysight N1913/1914A User’s Guide...
  • Page 232 A command was received which generates too much data to fit in the output buffer and the input buffer is also full. Command execution continues but data is lost. – Query UNTERMINATED after indefinite response The *IDN? command must be the last query command within a command string. Keysight N1913/1914A User’s Guide...

  • Page 233: Operator Maintenance

    2 Install the correct fuses in the respective “In line” positions as shown in Figure 9-3. (The N1913A/1914A requires two fuses.) 3 Replace the fuse holder assembly in the rear panel. In-line Fuse Figure 9-3 Replacing the fuses Keysight N1913/1914A User’s Guide...

  • Page 234: Connector Maintenance

    – Fix the measurement equipment to the bench if possible (or rack it up). – Do not overtighten connectors and do not allow them to become loose — use a torque wrench. – Do not mate dissimilar families, for example APC-3.5 and SMA. – Avoid temperature extremes. Keysight N1913/1914A User’s Guide...

  • Page 235: Contacting Keysight Technologies

    Keysight Technologies. This chapter contains a checklist that will help identify some of the most common problems. If you wish to contact Keysight Technologies about any aspect of the power meter, from service problems to ordering information, refer to “”...

  • Page 236: Check The Basics

    Problems can be solved by repeating what was being performed when the problem occurred. A few minutes spent in performing these simple checks may eliminate time spent waiting for instrument repair. Before calling Keysight Technologies or returning the power meter for service, please make the following checks: –...

  • Page 237: Recommended Calibration Interval

    Version – from the serial number label. The serial number label is attached to the rear of each Keysight Technologies instrument. This label has two instrument identification entries. The first provides the instruments serial number and the second provides the identification number for each option built into the instrument.

  • Page 238: Erasing Memory Data

    If you need to erase the EPM Series Power Meter’s memory, for example, before you return it to Keysight Technologies for repair or calibration, of all data stored in it. The memory data erased includes the save/recall states and power on last states.

  • Page 239: Returning Your Power Meter For Service

    Keysight Technologies. Packaging the Power Meter for Shipment Use the following steps to package the power meter for shipment to Keysight Technologies for service: – Fill in a blue service tag (available at the end of this guide) and attach it to the power meter.
  • Page 240 Maintenance THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1913/1914A User’s Guide...
  • Page 241 Keysight N1913/1914A EPM Series Power Meters User’s Guide Characteristics and Specifications For the characteristics and specifications of the N1913/1914A EPM Series Power Meters, refer to the datasheet at http://literature.cdn.keysight.com/litweb/pdf/5990-4019EN.pdf.
  • Page 242 Characteristics and Specifications THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1913/1914A User’s Guide...
  • Page 243 This information is subject to change without notice. Always refer to the Keysight website for the latest revision. © Keysight Technologies 2009–2018 Edition 20, February 12, 2018 Printed in Malaysia *N1913-90001* N1913-90001 www.keysight.com...

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