Agilent Technologies N9340A Guide de l'utilisateur

!"Agilent N9340B Handheld Spectrum AnalyzerUser’s Guide

1Overview4 N9340B User’s GuideOptimized UsabilityThe Agilent N9340B handheld spectrum analyzer provides enhanced usability:• The 6.5-inch TFT colorfu

5Key Reference94 N9340B User’s GuideCF StepKey access: [FREQ] > {CF Step}Changes the step size for the center frequency function. Once a step size

Key Reference 5N9340B User’s Guide 95MarkerAccesses the marker control softkeys to select the type and number of markers. Markers are diamond- shaped

5Key Reference96 N9340B User’s GuideDeltaKey access: [MARKER] > {Delta}Activates a second marker at the position of the first marker. (If no marker

Key Reference 5N9340B User’s Guide 97Peak SearchPlace a marker on the highest peak based on the setting of the Search Criteria as follows:•PeakKey acc

5Key Reference98 N9340B User’s GuideMarker ToAccesses the following marker function menu keys:•To CenterKey access: [MARKER] > {To Center}Sets the

Key Reference 5N9340B User’s Guide 99Marker TraceKey access: [MARKER] > {More} > {Marker Trace}Activates a marker on the trace if there are no m

5Key Reference100 N9340B User’s GuideMEASHardkey menu access.In spectrum analysis mode, pressing [MEAS] brings up the menu for a suite of power measu

Key Reference 5N9340B User’s Guide 101ACPRThe adjacent channel power ratio (ACPR) measures the power ratio between the main channel power and the adja

5Key Reference102 N9340B User’s GuideChannel PowerChannel power function measures the power and power spectral density in the channel bandwidth specif

Key Reference 5N9340B User’s Guide 103Spectrum Emission Mask (SEM)Spectrum Emission Mask measurement includes the in- band and out- of- band spurious

Overview 1N9340B User’s Guide 5Front Panel OverviewN9340B HANDHELD SPECTRUM ANALYZER 100 kHz - 3.0 GHz SYS MODE MEAS TRACEBW/SWPAMPTD SPAN FREQEN

5Key Reference104 N9340B User’s Guide• Chan SpanKey access: [MEAS] > {SEM} > {Ref Channel}Specifies the span used in measuring the power in the

Key Reference 5N9340B User’s Guide 105Table 2 Offsets & Limits Defaulted for W-CDMA (3GPP) Mobile Station Measurementsaa. Abs Stop is set to Coupl

5Key Reference106 N9340B User’s GuideOffsetKey access: [MEAS] > {SEM} > {Offset/Limits}Selects the offset pairs (upper and lower) that the softk

Key Reference 5N9340B User’s Guide 107Specifies the resolution bandwidth used in measuring the offset pair. When set to Auto, the Res BW from the defa

5Key Reference108 N9340B User’s GuideMeas BWKey access: [MEAS] > {SEM} > {Offset/Limits} > {More} > {More}Specifies the bandwidth to use w

Key Reference 5N9340B User’s Guide 109SpectrogramSpectrogram Run/PauseKey access: [MEAS] > {Spectrogram} > {Spectrogram}Toggles the spectrogram

5Key Reference110 N9340B User’s GuidePaletteKey access: [MEAS]> {Spectrogram} > {Palette}Toggles the spectrogram color mode between full color a

Key Reference 5N9340B User’s Guide 111File SetupKey access: [MEAS]> {Spectrogram} > {Save&Load} > {File Setup}This submenu allows you to

5Key Reference112 N9340B User’s GuideMODEActivates the softkey menus to select the measurement mode of your analyzer. The measurement modes are:• Spec

Key Reference 5N9340B User’s Guide 113Amptd StepKey access: [MODE] > {Tracking Generator } > { Amptd Step}Allows you to set the step size of the

1Overview6 N9340B User’s GuideDisplay Annotations123456789101211141315:44:03 03,10,08Description Associated Function Key1 Time and Date [SYS] > {Se

5Key Reference114 N9340B User’s Guidethe error message: Store reference trace before turning on Normalize (On) is displayed in the status line, howeve

Key Reference 5N9340B User’s Guide 115such as an amplifier. Now replace the thru line with the device under test, and an accurate measurement of the g

5Key Reference116 N9340B User’s Guide• Zero TypeToggles the zeroing type of the Power Sensor between internal and external. When this type is set to E

Key Reference 5N9340B User’s Guide 117•ResolutionAccess the associated Resolution submenu.When the measurement suffix is W or %, this parameter repres

5Key Reference118 N9340B User’s GuideMeas SetupKey access: [MODE] > {Power Meter} > {Meas Setup}Accesses the Meas Disp submenu which is used to

Key Reference 5N9340B User’s Guide 119• Lower LimitSets the lower test limit value for the current measurement. The units used are dependent on the cu

5Key Reference120 N9340B User’s Guideaverages is greater than 12.5%, the digital filter is cleared. The filter will then start storing new measurement

Key Reference 5N9340B User’s Guide 121Quick SpanKey access: [MODE] > {IBOC Measurement} > {AM}/{FM} > {Quick Span}Press this softkey to quick

5Key Reference122 N9340B User’s GuideMask FuctionKey access: [MODE] > {IBOC Measurement} > {AM}/{FM} > {Mask Function}Accesses the submenu to

Key Reference 5N9340B User’s Guide 123The mak types for IBOC- FM are listed as below: • FCC (FM- 73.317)• NRSC- 5- B Hybrid• NRSC- 5- B HybridFigure 5

Overview 1N9340B User’s Guide 7Top Panel OverviewPC12-18 VDC 55W M AX 50 VDC MA X 33 dBm (2 W) MAXRF IN PUT 50 RF OU T 50 EXT TRIG IN/EXT

5Key Reference124 N9340B User’s Guide• BeepBeep On/Off is a switch to enable/disable Pass/Fail beep sound indication.•Noise CancelThis function is use

Key Reference 5N9340B User’s Guide 125Tune RangeKey access: [MODE] > {IBOC Measurement} > {AM}/{FM} > {Tune Range}Toggles Tune Range between

5Key Reference126 N9340B User’s Guidespectrogram. when the Spectrogram is running, Pressing {Spec View}will pause the running spectrogram. Press {Ho

Key Reference 5N9340B User’s Guide 127Timed SettingKey access: [MEAS]> {Spectrogram} > {Save&Load} > {Time Setting}This submenu allows yo

5Key Reference128 N9340B User’s GuideSPANThis hardkey accesses the softkey submenu of span functions. Pressing [SPAN] allows you to change the frequen

Key Reference 5N9340B User’s Guide 129AMKey access: [SPAN] > {Demod} > {AM}Pressing {AM ON} activates the AM demodulation and turns off FM demo

5Key Reference130 N9340B User’s GuideHz. For long demodulation times, pressing Preset when Preset Type is set to DFT will abort the Demod function. T

Key Reference 5N9340B User’s Guide 131Ext RiseKey access: [SPAN] > {Trigger} > {Ext Rise}Activates the trigger condition that will start a sweep

5Key Reference132 N9340B User’s GuideTRACEAccesses the trace keys to store and manipulate trace information. Each trace comprises a series of data poi

Key Reference 5N9340B User’s Guide 133Minimum HoldKey access: [TRACE] > {Min Hold}Maintains the minimum level for each trace point of the selected

1Overview8 N9340B User’s GuideInstrument MarkingsThe CE mark shows that the product complies with all relevant European Legal Directives.The CSA mar

5Key Reference134 N9340B User’s Guideof the data evaluated during that time and present a single point of trace data based on the detector mode. We ca

Key Reference 5N9340B User’s Guide 135AverageKey access: [TRACE] > {More} > {Average}Initiates a digital averaging routine that averages the tra

5Key Reference136 N9340B User’s GuideNumbers, alpha characters and underline are all valid components of a filename.Recall TraceKey access: [TRACE] &g

Key Reference 5N9340B User’s Guide 137LIMITLimit LineKey access: [Limit] > {Limit Line}Activates an adjustable horizontal line that is used as a vi

5Key Reference138 N9340B User’s GuideLimit TypeKey access: [Limit] > {Limit Type}Defines the limit you are editing as either an upper or lower limi

139Agilent N9340B Handheld Spectrum AnalyzerAgilent Technologies6Error MessagesThis

6 Error Messages140 N9340B User’s GuideOverviewIf an improper operation occurs during the instrument configuration, a message will appear on the statu

Error Messages 6N9340B User’s Guide 141Error Message ListPlease refer to the error messages list table as below to find the corresponding message desc

6 Error Messages142 N9340B User’s Guide–144 Character data too longIndicates the character data contained more than 12 characters. (see IEEE 488.2, 7.

Error Messages 6N9340B User’s Guide 143150 Mixer overloadIndicates the first mixer in danger. Either increase input attenuation or decrease the input

9Agilent N9340B Handheld Spectrum AnalyzerAgilent Technologies2Getting Star

6 Error Messages144 N9340B User’s Guide

145Agilent N9340B Handheld Spectrum AnalyzerAgilent Technologies7TroubleshootingThi

7 Troubleshooting146 N9340B User’s GuideCheck the basicsThis section includes information on how to check for a problem with your Agilent spectrum ana

Troubleshooting 7N9340B User’s Guide 147• To meet specifications, the analyzer must be aligned. For more information on how to align the analyzer, ref

7 Troubleshooting148 N9340B User’s GuideContact Agilent TechnologiesAgilent has Sales and Service Offices around the world to provide you with complet

149Agilent N9340B Handheld Spectrum Analyzer Agilent Technologies8Menu MapThis chapt

8Menu Map150 N9340B User’s GuideAMPTDAMPTDRef levelAttenuationAuto ManPreampOff OnScale/DIV >Scale TypeLog LinHiSensitivityMoredBm1 dB/DIV2 d

BW/SWPRBWVBWVBW/RBWAvg TypeSweep TimeAuto ManSweepSingle SweepLog PwrPowerVoltageTD ModeAuto ManAuto ManAuto ManSweep Single ContSweep ModeN

FreqCenter FreqCF StepAuto ManStart FreqStop FreqChannel STD>StandardOff On Load STD ><Chan name>ChannelFwd RevChannel StepSTD T

MarkerMarkerNormalDeltaOffPeak Search >Marker To >MorePeak 6 Peaks Search1 2 3 4 5 6Next Left PKNext Right PK1 of 2To C en te rTo R efMode >

2 Getting Started10 N9340B User’s GuideChecking Shipment and Order ListCheck the shipment and order list when you receive the shipment.• Inspect the s

8Menu Map154 N9340B User’s GuideMEAS MEASMeasure OffACPRChannel PowerFieldStrengthOBWMethod%dBcCenter FreqInt BWChannel BWCenter FreqAdj ChannelChanne

Menu Map 8N9340B User’s Guide 155MODE - IBOC MeasurementIBOC Measur ementFM>Qu ick S pan >Auto TuneReturnCenter Freq<val ue >Mask Functio

8Menu Map156 N9340B User’s GuideMODE - Tracking GeneratorMODESpectrum AnalyzerSourcePower MeterTracking GeneraotrDemodulation AnalysisAmplitudeOff

Menu Map 8N9340B User’s Guide 157MODE - Power Meter Zeroing Meas Disp Re tu rn Meas Setup Preset Freq Power Range Return Limits Rel/Offset Avera

8Menu Map158 N9340B User’s GuideMODE - Demodulation Analysis (AM/FM)Demodula tion AnalysisIF BWDe tec torMoreCarrier FreqEq LP FX Scale*Ref ValueRetur

Menu Map 8N9340B User’s Guide 159MODE - Demodulation Analysis (ASK/FSK)Demodulation AnalysisSymbol RateViewMoreCarrier FreqFilter SetupX Scale*Ref Val

8Menu Map160 N9340B User’s GuideMODE - xDSLMODESpectrogramRun PauseRestart MeasOff OnSpectrg ViewHomePage UpPage DownEndPlayback xDSLPalette Dis

Menu Map 8N9340B User’s Guide 161SPANSPANSpanFull SpanZero SpanLast SpanDemod*Trigger*The trigger menu is available when span is set to zero span.AMOf

8Menu Map162 N9340B User’s GuideSYSSYSBrightness Setting >Key BacklightFile >GeneralInput/OutputTrig RefLanguageMore1 of 3Show SystemShow Error

TRACETrac eClear WriteMax HoldMin HoldViewBlankMore1 2 3 4 1 of 2DetectorSave TraceAverageNormalAveragePos PeakMore2 of 2Auto ManOff OnSave AsReca

Getting Started 2N9340B User’s Guide 11Power RequirementsThe AC power supplied must meet the following requirements:The AC/DC power supply charger ada

Limit TypeBeepSave LimitsUpper LowerLIMITLimit LineLimitLoad LimitsOff OnOff OnOff OnLimits PointsLimits TableLimits OffsetLimitLimitEdit Limit

165AAdding Option, 29Amplitude, 82Attenuation, 82Avg Type, 87BBattery, 16CCF Step, 94Checking SYS Info, 19DDisplay Adjustment, 26EESC/CLR, 92

166

DECLARATION OF CONFORMITY According to EN ISO/IEC 17050-1:2004 Manufacturer’s Name: Agilent Technologies (Chengdu) Co., Ltd. Manufacturer’s Addre

!"www.agilent.com© Agilent Technologies, Inc. 2008-2009Printed in China July 2009*N9340-90008*N9340-90008

Plug Type Cable Part NumberPlug a DescriptionFor use in Country & Region250V 10A8121-1703 BS 1363/A Option 900United Kingdom, Hong Kong, Singapore

Getting Started 2N9340B User’s Guide 13Safety ConsiderationsAgilent has designed and tested the N9340B handheld spectrum analyzer for Measurement, Con

Notices© Agilent Technologies, Inc. 2008-2009No part of this manual may be reproduced in any form or by any means (including electronic storage and re

2 Getting Started14 N9340B User’s GuideWARNINGDanger of explosion if the battery is incorrectly replaced. Replace only with the same type battery reco

Getting Started 2N9340B User’s Guide 15Environmental RequirementsThe N9340B is designed for use under the following conditions:• Operating temperature

2 Getting Started16 N9340B User’s GuideWorking with BatteriesInstalling a BatteryViewing Battery StatusDetermine the battery status using either of th

Getting Started 2N9340B User’s Guide 17Charging a BatteryYou may charge the battery both in the tester and in the external battery charger (option BCG

2 Getting Started18 N9340B User’s GuidePowering on the Analyzer for the First TimeInsert the battery into the analyzer or connect the analyzer to an e

Getting Started 2N9340B User’s Guide 19Preparation for UseUse [SYS] hardkey to check or set the system settings of your analyzer. Setting up your N93

2 Getting Started20 N9340B User’s GuideMaking a Basic MeasurementThis section provides information on basic analyzer operations. It assumes that you a

Getting Started 2N9340B User’s Guide 21Viewing a Signal on the Analyzer1 Use a signal generator to generate a CW signal of 1.0 GHz, at a power level o

2 Getting Started22 N9340B User’s Guide

23Agilent N9340B Handheld Spectrum AnalyzerAgilent Technologies3System and FileThis chapter provides the information on basic system setting and file

1OverviewIntroduction 2Front Panel Overview 5Display Annotations 6Top Panel Overview 7Instrument Markings 82 Getting StartedChecking Sh

3 System and File24 N9340B User’s GuideSystem SettingThis section provides you the basic system configuration which is frequently used before or after

System and File 3N9340B User’s Guide 25Factory Default SettingsParameter Default SettingCenter Frequency 1.5 GHzStart Frequency 0.0 HzStop Frequency

3 System and File26 N9340B User’s GuideVisual and Audio AdjustmentDisplay AdjustmentPress [SYS] > {Brightness} to toggles the screen brightness bet

System and File 3N9340B User’s Guide 27• LCD The analyzer turns off the LCD display after a user- defined idle time. Press any key to re- activate the

3 System and File28 N9340B User’s GuideUpgrading FirmwareFollow the steps below to update the N9340B firmware:1 Download the latest N9340B firmware fr

System and File 3N9340B User’s Guide 29External Reference (Ref)Use the external reference function as follows:1 Input a 10 MHz signal to the EXT TRIG

3 System and File30 N9340B User’s GuideShow SystemPressing [SYS] > {More} > {Show system} displays the following hardware, software and battery

System and File 3N9340B User’s Guide 31When the calibration function is triggered, the current measurement is interrupted and a gauge displays on the

3 System and File32 N9340B User’s GuideFilePressing [SYS] > {File} accesses to the menu that allows you to manage the file saving and loading.View

System and File 3N9340B User’s Guide 33• CSV (*.CSV) A CSV file records the trace data and available for review on PC.• Setup (*.SET) A setup file re

Low Frequency Channel 31File 324 Making MeasurementsMeasuring Multiple Signals 38Measuring a Low-Level Signal 43Improving Frequency Resolu

3 System and File34 N9340B User’s GuideSaving Multiple Test SetupsTest Setups that are unique and are necessary to recall frequently can be saved as a

System and File 3N9340B User’s Guide 35Quick loading a setup• Load defaultPress [SYS] > {More} > {More} > {LoadSYS Setup} > {Load default

3 System and File36 N9340B User’s Guide

37Agilent N9340B Handheld Spectrum Analyzer!"4Making Measurements

4 Making Measurements38 N9340B User’s GuideMeasuring Multiple SignalsThis section provides information on measuring multiple signals.Comparing Signals

Making Measurements 4N9340B User’s Guide 39Search} softkey. In this example the next peak is 100 MHz, a harmonic of the 50 MHz signal:• Press [MARKER

4 Making Measurements40 N9340B User’s GuideResolving Signals of Equal AmplitudeIn this example a decrease in resolution bandwidth is used in combinati

Making Measurements 4N9340B User’s Guide 41As you decrease the resolution bandwidth, you improve the resolution of the individual signals and it also

4 Making Measurements42 N9340B User’s GuideResolving Small Signals Hidden by Large SignalsThis example uses narrow resolution bandwidths to resolve t

Making Measurements 4N9340B User’s Guide 43Measuring a Low-Level SignalThis section provides information on measuring low- level signals and distingui

LIMIT 1376Error MessagesOverview 140Error Message List 1417 TroubleshootingCheck the basics 146Warranty and Service Options 147Contact

4 Making Measurements44 N9340B User’s Guide5 Reduce the span to 1 MHz and if necessary re- center the peak.• Press [SPAN] > 1 > {MHz}6 Set the

Making Measurements 4N9340B User’s Guide 45Decreasing the Resolution BandwidthResolution bandwidth settings affect the level of internal noise without

4 Making Measurements46 N9340B User’s GuideUsing the Average Detector and Increased Sweep TimeThe analyzer’s noise floor response may mask low- level

Making Measurements 4N9340B User’s Guide 47Trace Averagi ngAveraging is a digital process in which each trace point is averaged with the previous swee

4 Making Measurements48 N9340B User’s GuideImproving Frequency Resolution and AccuracyUsing the frequency counter to improve frequency resolution and

Making Measurements 4N9340B User’s Guide 49Making Distortion MeasurementsThis section provides information on measuring and identifying signal distort

4 Making Measurements50 N9340B User’s Guide3 Change the center frequency to the value of the second (400 MHz) harmonic:• Press [MARKER] > {Peak Se

Making Measurements 4N9340B User’s Guide 51Figure 4-14 Identifying Analyzer Distortion (O dB atten)8 Press [AMPTD] > {Attenuation} > 10 > {d

4 Making Measurements52 N9340B User’s GuideThird-Order Intermodulation DistortionTwo- tone, third- order intermodulation (TOI) distortion is a common

Making Measurements 4N9340B User’s Guide 53After the performance of the source/analyzer combination has been verified, the DUT (device under test, for

Documentation Conventions:1. A pair of curly brackets { } indicates a softkey, for example {Start} refers to the Start softkey.2. A pair of square bra

4 Making Measurements54 N9340B User’s Guide• Press [MARKER] > {Peak Search} > {Next Left (Right) PK}8 Measure the other distortion product:• Pre

Making Measurements 4N9340B User’s Guide 55Making a Stimulus Response Transmission MeasurementThe procedure below describes how to use a built- in tra

4 Making Measurements56 N9340B User’s Guide5 Press [BW/SWP] > {Sweep Time (Auto)} to put the sweep time into stimulus response auto coupled mode.

Making Measurements 4N9340B User’s Guide 57Measuring Stop Band Attenuation of a Low-pass FilterWhen measuring filter characteristics, it is useful to

4 Making Measurements58 N9340B User’s Guide8 Reconnect the DUT to the analyzer. Note that the units of the reference level have changed to dB, indicat

Making Measurements 4N9340B User’s Guide 59Making a Reflection Calibration MeasurementThe following procedure makes a reflection measurement using a c

4 Making Measurements60 N9340B User’s Guide2 Connect the tracking generator output of the analyzer to the directional bridge or coupler.3 Connect the

Making Measurements 4N9340B User’s Guide 61Figure 4-21 Short Circuit Normalized

4 Making Measurements62 N9340B User’s GuideMeasuring Return Loss Using the Reflection Calibration RoutineThis procedure uses the reflection calibratio

Making Measurements 4N9340B User’s Guide 63Making an Average Power MeasurementAverage power measurements provide a key metric in transmitter performan

1Agilent N9340B Handheld Spectrum Analyzer!"1Overview

4 Making Measurements64 N9340B User’s Guideexternal zeroing for input signals below -30 dBm for best accuracy.Making a Basic Average Power Measuremen

Making Measurements 4N9340B User’s Guide 65To Make a Basic Average Power MeasurementYou can follow the steps below to make a basic average power measu

4 Making Measurements66 N9340B User’s GuideSetting Power Meter ResolutionYou can choose from four levels of Power Meter resolution. Higher resolutions

Making Measurements 4N9340B User’s Guide 67Setting the Power Meter’s Upper and Lower LimitsThe internal Power Meter can be configured to detect when a

4 Making Measurements68 N9340B User’s GuideSpectrogramThe scrolling three- dimensional display is noted for its ability to track the frequency and pow

Making Measurements 4N9340B User’s Guide 69Press [FREQ], {Center Freq}, [1.8052], {GHz}, [SPAN], [5], {MHz}.3 Turn on the Spectrogram function.Press

4 Making Measurements70 N9340B User’s Guideoffending event or interference. The spectrogram data may be played back for review on either the analyzer’

Making Measurements 4N9340B User’s Guide 71Demodulating an FM SignalThis section demonstrates how to demodulate and listen to an FM signal using the b

4 Making Measurements72 N9340B User’s Guide6 Set the resolution bandwidth to capture the full bandwidth of the FM signal. To calculate the required ba

Making Measurements 4N9340B User’s Guide 73Analysis the Demodulated SignalsThe N9340B provides the optional AM/FM (Option AMA) and ASK/FSK (Option- DM

1Overview2 N9340B User’s GuideIntroductionThe Agilent N9340B is a handheld spectrum analyzer with a frequency range of 100 kHz to 3 GHz, tunable to 9

4 Making Measurements74 N9340B User’s Guide4 Set the attenuation state to Auto (default):Press {More 1 of 3} > {More 2 of 3} > {Attenuation Aut

Making Measurements 4N9340B User’s Guide 753 Press {Carries Freq} > [100] > {MHz} to set the carrier frequency.4 Set the attenuation state to A

4 Making Measurements76 N9340B User’s GuideASK/FSK Demodulation AnalysisThe ASK/FSK demodulation analysis function supports four display modes: • Symb

Making Measurements 4N9340B User’s Guide 773 Press {Carries Freq} > [100] > {MHz} to set the carrier frequency.4 Press {Symbol Rate} > [10]

4 Making Measurements78 N9340B User’s GuideFSK Demodulation AnalysisPlease refer to the procedures below to analysis the ASK demodulation.1 Connect th

Making Measurements 4N9340B User’s Guide 79Monitoring the ADSL Signal with Option XDMxDSL (ADSL and VDSL) is widely used for broadband internet connec

4 Making Measurements80 N9340B User’s GuidePlease refer to the procedures below for monitoring the ADSL network.1 Press [SYS] > {Setting} > {Pw

81Agilent N9340B Handheld Spectrum AnalyzerAgilent Technologies5Key ReferenceThis Ch

5Key Reference82 N9340B User’s GuideAmplitudeKey access: [AMPTD]Activates the reference level function and access the associated softkeys to set funct

Key Reference 5N9340B User’s Guide 83PreampKey access: [AMPTD] > {Preamp}Toggles the internal preamp between On and Off.Preamp results in a correct

Overview 1N9340B User’s Guide 3• IBOC Measurement (Option IBC)Provides the in- band- on- channel measurement capability through a dedicated measuremen

5Key Reference84 N9340B User’s GuideHiSensitivityKey access: [AMPTD] > {HiSensitivity}Press this softkey On to set 0 dB attenuation, - 50 dBm refer

Key Reference 5N9340B User’s Guide 85EMF ModeKey access: [AMPTD] > {More}EMF mode is available when the Y Axis Unit is dBmV, dBμV or V. This mode i

5Key Reference86 N9340B User’s GuideBW/SWPActivates the bandwidth function and accesses the associated softkeys to control resolution bandwidth, video

Key Reference 5N9340B User’s Guide 87As the video bandwidth is decreased, the sweep time is increased to maintain amplitude calibration. VBW/RBWKey ac

5Key Reference88 N9340B User’s GuidePwrKey access: [BW/SWP] > {Avg Type} > {Power}Converts the scale from logarithmic to linear power units, and

Key Reference 5N9340B User’s Guide 89Sweep TimeKey access: [BW/SWP] > {Sweep Time}Selects the sweep time for the analyzer to tune across the displa

5Key Reference90 N9340B User’s GuideIn FFT ModeIn FFT mode, the sweep time default is auto- coupled. The submenu, sweep time is invalid in FFT mode.Sw

Key Reference 5N9340B User’s Guide 91Fast sweep mode provides a fast measurement function that decreases the sweep time. Using Fast Sweep will decreas

5Key Reference92 N9340B User’s GuideEnterHardkey function:• Terminates data entry and enters into the analyzer numerical values keyed from numeric key

Key Reference 5N9340B User’s Guide 93FrequencyActivates the center frequency function, and accesses the menu of frequency functions. The center freque