Agilent Technologies N9320A Podręcznik Użytkownika

Agilent N9320ASpectrum AnalyzerUser’s Guide

2 N9320A Spectrum Analyzer1OverviewAgilent N9320A at a GlanceThe Agilent N9320A spectrum analyzer is a portable, swept spectrum analyzer with a fr

92 N9320A Spectrum Analyzer4 Key ReferenceDelete Enter the submenu for deletion.Key access: Delete NowExecutes the delete file function. After a suc

Key Reference 4N9320A Spectrum Analyzer 93Copy Enters the submenu to copy files from local to a USB storage device.Key access: Copy NowExecutes the

94 N9320A Spectrum Analyzer4 Key ReferenceFrequencyPress to activate the center frequency function, and access the menu softkeys for frequency funct

Key Reference 4N9320A Spectrum Analyzer 95Signal TrackOn OffSoftkey moves the signal nearest the active marker to the center of the display and mainta

96 N9320A Spectrum Analyzer4 Key ReferenceMarkerHardkey accesses the marker control softkey menus to select the type and number of markers. Markers ar

Key Reference 4N9320A Spectrum Analyzer 97Off Turns off the selected marker by the Select Marker key. Off also turns off the related functions such

98 N9320A Spectrum Analyzer4 Key ReferenceAll Off Turns off all markers, including markers used for signal track, and marker annotations.Key access: F

Key Reference 4N9320A Spectrum Analyzer 99For more details on how to measure the phase noise of a signal, refer to “Measuring Phase Noise” on page 55.

100 N9320A Spectrum Analyzer4 Key ReferenceMarker->Press accesses the following marker function softkeys:Mkr CF Sets the frequency of the marker

Key Reference 4N9320A Spectrum Analyzer 101MeasIn the Spectrum Analyer mode (see MODE), Meas key displays a menu for measurements such as adjacent cha

Overview 1N9320A Spectrum Analyzer 3Front Panel OverviewFront panel features description information.1Screen displays current function information,

102 N9320A Spectrum Analyzer4 Key ReferenceMODESelects the measurement mode of your analyzer. Spectrum Analyser mode is the default mode and is for g

Key Reference 4N9320A Spectrum Analyzer 103Amptd StepAuto ManTo set the step size of the power level range of the tracking generator. The default sett

104 N9320A Spectrum Analyzer4 Key Referencewith a tracking generator. For example, connect the cables and a thru line, in place of the device to be me

Key Reference 4N9320A Spectrum Analyzer 105Ref TraceView BlankAllows you to view or blank the reference trace on the display.Key access: > Trackin

106 N9320A Spectrum Analyzer4 Key ReferencePeak SearchPlaces a marker on the highest peak based on the settings of the “Search Criteria” on page 110.

Key Reference 4N9320A Spectrum Analyzer 107Min Search Moves the active marker to the minimum detected amplitude.Key access: Pk-Pk Search Finds and d

108 N9320A Spectrum Analyzer4 Key ReferencePeak Excursion Sets the minimum amplitude variation of signals that the marker identifies as a peak. If a v

Key Reference 4N9320A Spectrum Analyzer 109Peak Table Accesses the following Peak Table softkeys to set a peak table.Key access: > MoreMax Value

110 N9320A Spectrum Analyzer4 Key ReferencePreset/SystemAccesses the Preset and System softkeys. When the analyzer is in the remote mode, pressing r

Key Reference 4N9320A Spectrum Analyzer 111Factory Preset StateAttenuation 20 dB(Auto) Average Type Video (Auto)Center frequency 1.5 GHz Averaging 1(O

4 N9320A Spectrum Analyzer1Overview6 Function keys hardkeys that are grouped in the upper right corner of the front panel. Their functions are defin

112 N9320A Spectrum Analyzer4 Key ReferencePwr on/Preset Accesses the following softkeys for the preset settings.Key access: Alignment Accesses the

Key Reference 4N9320A Spectrum Analyzer 113Language Accesses the softkeys for selecting the screen menu language.Key access: Diagnostics Accesses the

114 N9320A Spectrum Analyzer4 Key ReferenceShow Errors Accesses a list of the 100 most recent errors reported. The most recent error will appear at th

Key Reference 4N9320A Spectrum Analyzer 115Licensing Accesses the security system to enable licensing for individual options. A user may not turn off

116 N9320A Spectrum Analyzer4 Key ReferenceSPANAccesses the span function and the submenu softkeys for span functions. Pressing changes the frequenc

Key Reference 4N9320A Spectrum Analyzer 117Sweep/TrigAccesses the Sweep/Trigger softkeys for selection of the sweep mode and trigger mode of the analy

118 N9320A Spectrum Analyzer4 Key ReferenceKey access: Free Run New sweep starts as soon as possible after the current sweep ends.Key access: >

Key Reference 4N9320A Spectrum Analyzer 119View/TraceAccesses the trace keys to store and manipulate trace information. Each trace consists of a serie

120 N9320A Spectrum Analyzer4 Key Reference

sAgilent N9320A Spectrum AnalyzerUser’s Guide1215One-Button MeasurementsChannel Power 122Occupied BW 124ACP 127Intermod (TOI) 130Spectrum Emission Ma

Overview 1N9320A Spectrum Analyzer 57 Data Control Keys including the numeric keypad, arrow keys, back key, Enter key and knob. Used to change and co

122 N9320A Spectrum Analyzer5 One-Button MeasurementsChannel PowerChannel Power measures the power and power spectral density in the specified channel

One-Button Measurements 5N9320A Spectrum Analyzer 123Avg NumberOn OffSpecifies the number of measurement averages used when calculating the measuremen

124 N9320A Spectrum Analyzer5 One-Button MeasurementsOccupied BWOccupied Bandwidth integrates the power of the displayed spectrum. The power- bandwidt

One-Button Measurements 5N9320A Spectrum Analyzer 125is defined as the difference between the (f1 + f2)/2 and the tuned center frequency of the signal

126 N9320A Spectrum Analyzer5 One-Button MeasurementsOBW Span Specifies the integration range used to calculate the total power from which the percent

One-Button Measurements 5N9320A Spectrum Analyzer 127ACPAdjacent Channel Power (ACP) measures the power present in adjacent transmit channels. The spa

128 N9320A Spectrum Analyzer5 One-Button Measurementsweights new data more than old data, which facilitates tracking of slow- changing signals. The av

One-Button Measurements 5N9320A Spectrum Analyzer 129Meas Type Specifies the reference for the measurement, either Tota l Pw r Ref or PSD Ref. Relat

130 N9320A Spectrum Analyzer5 One-Button MeasurementsIntermod (TOI)The third order intermodulation (TOI) measurement computes and displays the output

One-Button Measurements 5N9320A Spectrum Analyzer 131When Avg Mode is Repeat, after reaching the average count, all previous data is cleared and the

6 N9320A Spectrum Analyzer1OverviewDisplay AnnotationsItem Description Notes (Associated function key)1 Amplitude scale [Amplitude] > Scale Type2 D

132 N9320A Spectrum Analyzer5 One-Button MeasurementsSpectrum Emission MaskSpectrum Emission Mask measurement includes the in- band and out- of- band

One-Button Measurements 5N9320A Spectrum Analyzer 133Ref Channel Accesses the softkeys to change the reference channel settings.Key access: > More

134 N9320A Spectrum Analyzer5 One-Button MeasurementsOffset/Limits Displays the menus to change the following parameters for offset frequency settings

One-Button Measurements 5N9320A Spectrum Analyzer 135a. Abs Stop is set to Couple and Fail Mask is set to Abs AND Rel.a. Res BW is set to 100 kHz an

136 N9320A Spectrum Analyzer5 One-Button Measurementsa. Res BW is set to 100 kHz, Fail Mask is set to Rel, and Abs Stop and Rel Stop are both set to

One-Button Measurements 5N9320A Spectrum Analyzer 137Res BWAuto ManSpecifies the resolution bandwidth used in measuring the offset pair. When set to A

138 N9320A Spectrum Analyzer5 One-Button MeasurementsAbsolute Sets the limit test to show Fail if one offset is larger than the corresponding limit fo

sAgilent N9320A Spectrum AnalyzerUser’s Guide1396Instrument MessagesOverview 140Command Errors 141Execution Conflict 143Device-Specific Errors 145

140 N9320A Spectrum Analyzer6 Instrument MessagesOverviewIf an improper operation occurs during the instrument configuration, a message will appear on

Instrument Messages 6N9320A Specturm Analyzer 141Command ErrorsThe messages listed below are command errors, which are saved into local registers. -10

Overview 1N9320A Spectrum Analyzer 7a. Optimized Phase is only available when SPAN doesn’t exceed 50 kHz.13 Softkey menu Refer to “Key Reference” for

142 N9320A Spectrum Analyzer6 Instrument Messages-112 Program mnemonic too longThe header contains more than 12 characters.-113 Undefined headerThe he

Instrument Messages 6N9320A Specturm Analyzer 143Execution ConflictThe system messages listed below are execution conflicts, indicating settings confl

144 N9320A Spectrum Analyzer6 Instrument Messages-330 Self-test failedA self- test failure occurred. Report this error to Agilent Technologies.-340 ca

Instrument Messages 6N9320A Specturm Analyzer 145Device-Specific Errors102 Set 50 MHz signal < 0 dBm, do alignment againThe 50 MHz energy is too hi

146 N9320A Spectrum Analyzer6 Instrument Messages215 TG start freq is less than 1/2 res bwTracking generator uncalibrated at start frequencies below 1

Instrument Messages 6N9320A Specturm Analyzer 147652 Connect CAL OUT to RF INyou must connect the CAL OUT to RF IN with the appropriate cable.751 In

148 N9320A Spectrum Analyzer6 Instrument Messages767 Fatal LDS errorAttempt to initialize the instrument state has failed. Cycle instrument power. If

sAgilent N9320A Spectrum AnalyzerUser’s Guide1497In Case of DifficultyCheck the Basics 150Read the Warranty 151Contact Agilent Technologies 152This c

150 N9320A Spectrum Analyzer7 In Case of DifficultyCheck the BasicsBefore calling Agilent Technologies, or returning an analyzer for service, perform

In Case of Difficulty 7N9320A Spectrum Analyzer 151Read the WarrantyAgilent Technologies provide one year warranty as standard for your spectrum analy

8 N9320A Spectrum Analyzer1OverviewRear Panel Overview1 REF OUT connector provides a frequency of 10 MHz, amplitude of –10 dBm reference output. (BNC

152 N9320A Spectrum Analyzer7 In Case of DifficultyContact Agilent TechnologiesAgilent Technologies has offices around the world to provide you with c

sAgilent N9320A Spectrum AnalyzerUser’s Guide1538Menu MapsThis chapter provides a visual representation of the front panel keys and their associated

154 N9320A Spectrum Analyzer8 Menu MapsAmplitude MenuAttenuation Auto Man More 1 of 2 Scale/Div Scale Type Log Lin Int Preamp On Off Y Axis Units >

Menu Maps 8N9320A Spectrum Analyzer 155BW/Avg MenuRes BW Auto Man Video BW Auto Man VBW/RBW Auto Man Average On Off Avg Type > Auto Man Auto Vide

156 N9320A Spectrum Analyzer8 Menu MapsDet/Display MenuDetector > Auto Man Limits > Active Fctn Position> Display Line On Off Auto Positiv

Menu Maps 8N9320A Spectrum Analyzer 157File Menu (1 of 2)Catalog> Save Load Delete> Copy By Date By Name Return Order Up Down All Screen

158 N9320A Spectrum Analyzer8 Menu MapsFile Menu (2 of 2)a. The path is depend on the Type selection.Catalog Save> Load> Delete> Copy> T

Menu Maps 8N9320A Spectrum Analyzer 159Frequency MenuCenter Freq Start Freq Stop Freq CF Step Auto Man Signal Track On Off Frequency

160 N9320A Spectrum Analyzer8 Menu MapsMarker Menu Select Marker > 1,2,3…12 Normal More 1 of 2 Delta > Off All Off Funtion > On Off Pr

Menu Maps 8N9320A Spectrum Analyzer 161Marker-> MenuMkr-> CF Mkr-> CF Step Mkr-> Start Mkr-> Stop Mkr-> Ref Lvl Marker ->

Overview 1N9320A Spectrum Analyzer 9Front and rear panel safety and compliance symbolsThe CE mark: a registered trademark of the European Community.Th

162 N9320A Spectrum Analyzer8 Menu MapsMeasure Menu (1 of 2)a. Continued on sheet 2 of 2Measure Off Channel Power > More 1 of 2 Occupied BW > AC

Menu Maps 8N9320A Spectrum Analyzer 163Measure Menu (2 of 2)a. Links to Meas Menu (sheet 1 of 2) More 2 of 2 Intermod > (TOI) Spectrum Emissio

164 N9320A Spectrum Analyzer8 Menu MapsMODE Menu Spectrum Analyzer Tracking Generator > AmplitudeTG On Off Attenuation Auto Man Return Amp

Menu Maps 8N9320A Spectrum Analyzer 165Name editor Menu ABCDEFG HIJKLMN Return OPQRSTU VWXYZ Name

166 N9320A Spectrum Analyzer8 Menu MapsPeak Search MenuPeak Search Next Peak More 1 of 2 Next Pk Right Next Pk Left Pk-Pk Search Peak Excursion Peak T

Menu Maps 8N9320A Spectrum Analyzer 167Preset/System MenuPreset Pwr on/Preset > More 1 of 3 Alignment > Language> Diagnostics> Align (Ex

168 N9320A Spectrum Analyzer8 Menu MapsSPAN MenuSpan Full Span Zero Span Last Span SPAN

Menu Maps 8N9320A Spectrum Analyzer 169Sweep/Trig MenuSweep Time Auto Man Sweep Single More 1 of 2 Sweep Cont Free Run Video More 2 of 2 External P

170 N9320A Spectrum Analyzer8 Menu MapsView/Trace MenuSelect Trace > 1 Clear Write Max Hold Min Hold View Blank Trace 1 Trace 2 Trace 3 Tra

N9320A User’s Guide 171IndexNumerics10 MHz REF OUT, 93GPP W-CDMA, 134802.11a, 135802.11b, 136AAbs Start, 137Abs Stop, 137AC power receptacle, 9Active

10 N9320A Spectrum Analyzer1Overview

172 N9320A User’s GuideIndexMMarker key, 5, 97Marker Table, 100Marker-> key, 5, 101Max Mixer lvl, 131Meas key, 5, 102, 121measuringACP, 127channel

DECLARATION OF CONFORMITY According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014 Manufacturer’s Name: Agilent-Qianfeng Electronic Technologies (C

© Agilent Technologies, Inc. 2006-2008Printed in China Second Edition, May 2008*N9320-90001*N9320-90001www.agilent.com

sAgilent N9320A Spectrum AnalyzerUser’s Guide112Getting StartedCheck the Shipment and Order List 12Power Requirements 13Environmental Requirements 15

N9320A Spectrum AnalyzerNotices© Agilent Technologies, Inc. 2006No part of this manual may be reproduced in any form or by any means (including electr

12 N9320A Spectrum Analyzer2 Getting StartedCheck the Shipment and Order ListAfter receiving the shipment, first check the shipment and your order lis

Getting Started 2N9320A Spectrum Analyzer 13Power RequirementsThe spectrum analyzer has an auto- ranging line voltage input. The AC power supply must

14 N9320A Spectrum Analyzer2 Getting StartedAC Power Cordsa. Plug description describes the plug only. The part number is for the complete cable assem

Getting Started 2N9320A Spectrum Analyzer 15Environmental RequirementsAgilent Technologies has designed this product for use in Installation Category

16 N9320A Spectrum Analyzer2 Getting StartedRack Mount It is recommended to use the Agilent rackmount kit (option 1CM) to install the spectrum analyze

Getting Started 2N9320A Spectrum Analyzer 173 Attach rackmount flange and front handle assembly with 3 screws per side.4 Attach the spectrum analyzer

18 N9320A Spectrum Analyzer2 Getting StartedSafety NoticeRead the following warnings and cautions carefully before powering on the spectrum analyzer t

Getting Started 2N9320A Spectrum Analyzer 19Electrostatic Discharge ProtectionElectrostatic discharge (ESD) damages or destroys electronic components

20 N9320A Spectrum Analyzer2 Getting StartedPower on and Check1 Connect the AC power cord into the instrument. Insert the plug into a power socket pro

Getting Started 2N9320A Spectrum Analyzer 21Check for Instrument MessagesThe spectrum analyzer has two categories of instrument messages: error and wa

N9320A Spectrum Analyzer In This User’s Guide…This guide contains operation information for the N9320A Spectrum Analyzer. The following are descriptio

22 N9320A Spectrum Analyzer2 Getting StartedSome helpful TipsThe following contains information to help in using and maintaining the instrument for op

Getting Started 2N9320A Spectrum Analyzer 23Using an External ReferenceTo use an external 10 MHz source as the reference frequency, connect the extern

24 N9320A Spectrum Analyzer2 Getting StartedRemote ControlThe N9320A spectrum analyzer is capable of being connected to a PC through a USB connection,

sAgilent N9320A Spectrum AnalyzerUser’s Guide253Functions and MeasurementsMaking a Basic Measurement 26Measuring Multiple Signals 30Measuring a Low-L

26 N9320A Spectrum Analyzer3 Functions and MeasurementsMaking a Basic MeasurementIn this guide, the keys labeled with [ ], for example, [Preset/Syst

Functions and Measurements 3N9320A Spectrum Analyzer 27Presetting the Spectrum AnalyzerPreset function provides a known instrument status for making m

28 N9320A Spectrum Analyzer3 Functions and MeasurementsViewing a SignalRefer to the procedures below to view a signal.1 Press > Pow on/Preset &g

Functions and Measurements 3N9320A Spectrum Analyzer 29Note that the frequency and amplitude of the marker appear both in the active function block, a

30 N9320A Spectrum Analyzer3 Functions and MeasurementsMeasuring Multiple SignalsThis section provides the information on how to measure multiple sign

Functions and Measurements 3N9320A Spectrum Analyzer 31Press > Next Peak orPress > Next Pk Right or Next Pk Left. Continue pressing the N

N9320A Spectrum Analyzer

32 N9320A Spectrum Analyzer3 Functions and MeasurementsComparing Signals not on the Same Screen Using Marker DeltaThe analyzer will compare the freque

Functions and Measurements 3N9320A Spectrum Analyzer 33Figure 3 shows the reference annotation for the delta marker (1R) at the left side of the displ

34 N9320A Spectrum Analyzer3 Functions and MeasurementsResolving Signals of Equal AmplitudeIn this example a decrease in the resolution bandwidth (RBW

Functions and Measurements 3N9320A Spectrum Analyzer 35If the signal peak is not present on the display, increase the frequency span out to 20 MHz, tu

36 N9320A Spectrum Analyzer3 Functions and MeasurementsTwo signals are now visible as shown in Figure 6. Use the front- panel knob or arrow keys to fu

Functions and Measurements 3N9320A Spectrum Analyzer 37Resolving Small Signals Hidden by Large SignalsThis example uses narrow resolution bandwidths t

38 N9320A Spectrum Analyzer3 Functions and Measurements5 Reduce the resolution bandwidth filter to view the smaller signal. The smaller signal will be

Functions and Measurements 3N9320A Spectrum Analyzer 39Measuring a Low-Level SignalThis section provides information on measuring low- level signals a

40 N9320A Spectrum Analyzer3 Functions and Measurements3 Set the center frequency, span and reference level:Press > Center Freq > 300 > MHz

Functions and Measurements 3N9320A Spectrum Analyzer 41A lower attenuation value will mean that more of the signal strength will be displayed on scree

N9320A User’s GuideContents1 Overview 1Agilent N9320A at a Glance 2Front Panel Overview 4Rear Panel Overview 9Front and rear panel safety and complian

42 N9320A Spectrum Analyzer3 Functions and MeasurementsFigure 12 Decreasing Resolution BandwidthA “#” mark appears next to the Res BW annotation in th

Functions and Measurements 3N9320A Spectrum Analyzer 43Selecting averaging, when the analyzer is auto- coupled, changes the detection mode to Sa

44 N9320A Spectrum Analyzer3 Functions and MeasurementsImproving Frequency Resolution and AccuracyThis section provides information on using the frequ

Functions and Measurements 3N9320A Spectrum Analyzer 45The marker readout in the active frequency function changes while the counted frequency result

46 N9320A Spectrum Analyzer3 Functions and MeasurementsTracking Drifting SignalsThis section provides information on measuring and tracking signals th

Functions and Measurements 3N9320A Spectrum Analyzer 475 Turn off the signal track function:Press > Signal Track (Off)6 Measure the excursion of

48 N9320A Spectrum Analyzer3 Functions and MeasurementsMaking Distortion MeasurementsThis section provides information on measuring and identifying si

Functions and Measurements 3N9320A Spectrum Analyzer 49The signal produces harmonic products (spaced 200 MHz from the original 200 MHz signal) in the

50 N9320A Spectrum Analyzer3 Functions and MeasurementsNotice the MarkerD amplitude readout. This is the difference of the distortion product amplitud

Functions and Measurements 3N9320A Spectrum Analyzer 51Third-Order Intermodulation DistortionTwo- tone, third- order intermodulation distortion is a c

N9320A User’s GuideContentsMeasuring a Low-Level Signal 39Improving Frequency Resolution and Accuracy 44Tracking Drifting Signals 46Making Distortion

52 N9320A Spectrum Analyzer3 Functions and Measurements2 Set one source (signal generator) to 300 MHz and the other source to 301 MHz, for a frequency

Functions and Measurements 3N9320A Spectrum Analyzer 539 Measure the difference between this test signal and the second distortion product (see Figure

54 N9320A Spectrum Analyzer3 Functions and MeasurementsMeasuring Phase NoisePhase noise is a frequency domain measure of stability. Phase noise is spe

Functions and Measurements 3N9320A Spectrum Analyzer 55Stimulus Response TransmissionThe procedure below describes using the built- in tracking genera

56 N9320A Spectrum Analyzer3 Functions and Measurements5 To increase measurement sensitivity and smooth the noise:Press > Res Bw > 30 > KH

Functions and Measurements 3N9320A Spectrum Analyzer 579 Measure the rejection of the low pass filter:Press > Normal > 370 > MHz, Delta >

58 N9320A Spectrum Analyzer3 Functions and MeasurementsMeasuring Stop Band Attenuation of a Lowpass FilterWhen measuring filter performance, it is use

Functions and Measurements 3N9320A Spectrum Analyzer 594 Set the resolution bandwidth to 10 kHz:Press > Res Bw > 10 > KHz5 Turn on the track

60 N9320A Spectrum Analyzer3 Functions and Measurements11 In this example, the attenuation over this frequency range is - 17.98 dB/octave (one octave

Functions and Measurements 3N9320A Spectrum Analyzer 61Making a Reflection Calibration MeasurementThe following procedure makes a reflection measureme

ContentsN9320A User’s GuidePreset/System 111SPAN 117Sweep/Trig 118View/Trace 1205 One-Button Measurements 121Channel Power 122Occupied BW 124ACP 127In

62 N9320A Spectrum Analyzer3 Functions and Measurements2 Connect the tracking generator output of the analyzer to the directional bridge or coupler.3

Functions and Measurements 3N9320A Spectrum Analyzer 638 Normalize the trace:Press > Tracking Generator > More > Normalize > Store Ref

64 N9320A Spectrum Analyzer3 Functions and MeasurementsMeasuring Return Loss Using the Reflection Calibration RoutineThis procedure uses the reflectio

Functions and Measurements 3N9320A Spectrum Analyzer 65Viewing Catalogs and Saving FilesThe analyzer will store and retrieve data files similar to usi

66 N9320A Spectrum Analyzer3 Functions and Measurements1 The entry fields show the parameters for the files viewed:Name states the filename.Typ e disp

Functions and Measurements 3N9320A Spectrum Analyzer 674 Select the trace to save (1, 2, 3, 4 or all traces). For this example, we will select trace 3

68 N9320A Spectrum Analyzer3 Functions and MeasurementsLoading a FileThis feature will recall (load) onto the displayed screen a previously saved file

Functions and Measurements 3N9320A Spectrum Analyzer 69Copying a FileTo copy a file from internal storage to a USB storage device, follow this procedu

70 N9320A Spectrum Analyzer3 Functions and Measurements

sAgilent N9320A Spectrum AnalyzerUser’s Guide714Key ReferenceAmplitude 72Auto Tune 75Back <- 76BW/Avg 77Det/Display 81Enter 87File/Print 88Frequen

N9320A User’s GuideContentsFile Menu (2 of 2) 158Frequency Menu 159Marker Menu 160Marker-> Menu 161Measure Menu (1 of 2) 162Measure Menu (2 of 2) 1

72 N9320A Spectrum Analyzer4 Key ReferenceAmplitudePress hardkey to activate the reference level function and access the amplitude softkey menu.The

Key Reference 4N9320A Spectrum Analyzer 73Int PreampOn Off(Option PA3) Softkey toggles the internal pre- amplifier function between on and off. Pressi

74 N9320A Spectrum Analyzer4 Key ReferenceExt Amp Gain Softkey adds a positive or negative preamplifier gain value, which is subtracted from the displ

Key Reference 4N9320A Spectrum Analyzer 75Auto TuneHardkey activates the autotune function to view the signal, This hardkey performs the following fun

76 N9320A Spectrum Analyzer4 Key ReferenceBack <-The backspace hardkey is located in the numeric keypad area of the front panel and is used to chan

Key Reference 4N9320A Spectrum Analyzer 77BW/AvgHardkey activates the resolution bandwidth function and accesses the softkey menus that control the ba

78 N9320A Spectrum Analyzer4 Key ReferenceVBW/RBWAuto ManSets the ratio between the video and resolution bandwidths. When a signal is weak and is visu

Key Reference 4N9320A Spectrum Analyzer 79AverageOn OffInitiates a digital averaging routine that averages the trace points in a number of successive

80 N9320A Spectrum Analyzer4 Key ReferenceWhen trace average is on, the average type is shown on the left side of the display. Selecting an average ty

Key Reference 4N9320A Spectrum Analyzer 81Det/DisplayPress this hardkey to control detector and display functions.Detector(detector type)Auto ManSoftk

sAgilent N9320A Spectrum AnalyzerUser’s Guide11OverviewAgilent N9320A at a Glance 2Front Panel Overview 3Rear Panel Overview 8Front and rear panel sa

82 N9320A Spectrum Analyzer4 Key ReferenceWhen the detector is set to Auto, Pressing > Average (On) changes the detector. The Auto choice will d

Key Reference 4N9320A Spectrum Analyzer 83Active FctnPositionSelects the screen position for the Active Function Display. Depending on the type of tra

84 N9320A Spectrum Analyzer4 Key ReferenceDisplay LineOn OffActivates an adjustable horizontal line that is used as a visual reference line. The line,

Key Reference 4N9320A Spectrum Analyzer 85TestOn OffToggles the testing of the limit lines between on and off. If trace 1 is at or within the bounds o

86 N9320A Spectrum Analyzer4 Key ReferenceFrequencyEdits the frequency value for a limit point. After editing, the limit table will place the frequenc

Key Reference 4N9320A Spectrum Analyzer 87EnterTerminates a front- panel keypad numeric entry and enters that value into the analyzer. (For most appli

88 N9320A Spectrum Analyzer4 Key ReferenceFile/PrintHardkey accesses the softkeys menus to manage the file system of the analyzer. Refer to “Viewing C

Key Reference 4N9320A Spectrum Analyzer 89Save Accesses menu keys that allow the user to save the analyzer screen, state, trace, and limit data to a U

90 N9320A Spectrum Analyzer4 Key ReferenceLoad Accesses a submenu to load analyzer states, traces and limits into the analyzer from a USB storage devi

Key Reference 4N9320A Spectrum Analyzer 91State Displays all state file types listed in the storage location (.STA). Loading a state filetype restores