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Agilent Technologies U2761A manual Sweep Mode, Sweep Time, Remote Interface Operation

Models: U2761A

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2 Features and Functions

Remote Interface Operation

FREQuency:STARt {<frequency>}

FREQuency:STOP {<frequency>}

Sweep Mode

You can sweep with either linear or logarithmic spacing. For a linear sweep, the U2761A varies the output frequency in a linear fashion during the sweep. For a logarithmic sweep, the U2761A varies the output frequency in a logarithmic fashion.

The sweep mode consists of Linear or Logarithmic. The default sweep mode is Linear.

Soft Front Panel Operation

On the Sweep Type panel as shown in Figure 2- 28, select

the Linear or Log mode.

Remote Interface Operation

SWEep:SPACing {LINearLOGarithmic}

Sweep Time

The sweep time specifies the number of seconds required to sweep from the start frequency to the stop frequency. The number of discrete frequency points in the sweep is automatically calculated by the U2761A and is based on the sweep time you have selected. The range of the sweep time is 1 ms to 500 s. The default sweep time is 1 s.

82	U2761A User’s Guide

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Agilent Technologies U2761A manual Sweep Mode, Sweep Time, Remote Interface Operation, Soft Front Panel Operation

Contents

User’s Guide Agilent U2761A USB Modular Function/Arbitrary Waveform GeneratorAgilent Technologies Warranty Safety NoticesNotices C A U T I O NSafety Symbols U2761A User’s GuideGeneral Safety Information WARN IN GC A U T I O N Do not operate the product in an explosive atmosphere or in theRequirements Environment ConditionsU2761A User’s Guide Regulatory Markings Do not dispose in domestic household waste Waste Electrical and Electronic Equipment WEEE Directive 2002/96/ECU2761A User’s Guide Declaration of Conformity VIIIU2761A User’s Guide StandardU2761A User’s Guide Additional Information1Performance Criteria Regulatory Information for Canada2 Features and Functions 3 Characteristics and SpecificationsIn This Guide… 1 Getting StartedContents InstallationChassis Installation XVIIContents Features and FunctionsPhase Modulation PM Phase DeviationContents To Select PMProduct Specifications and Characteristics IndexContents 3 Characteristics and SpecificationsList of Figures AM waveformFM waveform PM waveformU2761A User’s Guide Table 1-1 Synchronous Simultaneous Interface SSI connector List of TablesU2761A User’s Guide Carrier frequency for PSKXVIII U2761A User’s GuideAgilent Technologies Getting StartedAgilent U2761A USB Modular Function Generator User’s Guide Introduction Various features of the U2761A1 Getting Started Product at a Glance Product OutlookTop View U2761A User’s GuideFront View Rear ViewUSB indicator Power indicator 10 MHz reference connector Trigger in connector Output connector Trigger out connectorProduct Dimensions Dimensions Without BumpersTop View Front ViewDimensions With Bumpers Top ViewFront View 1 Getting StartedStandard Purchase Items U2761A User’s GuideInspection and Maintenance General MaintenanceInitial Inspection Electrical CheckInstallation and Configuration InstallationN O TE U2761A User’s Guide1 Getting Started A. Check Your SystemHard-disk space 1 GB B. Install the IO Libraries Suite N O TEN O TE U2761A User’s GuideN O TE C. Install the Module Driver1 Getting Started D. Install the Agilent Measurement Manager U2761A User’s Guide1 Getting Started N O TE10 Fill in the Customer Information Form accordingly and click Next E. Connect the Module to Your PC N O TEYes, this time only and click Next to proceed U2761A User’s Guide1 Getting Started U2761A User’s GuideSelect Ignore to disable the warning message N O TEfollow the instructions below Go to Start Control Panel and double-click System1 Getting Started 8 The Assign USB device alias window will appear. Each time the U2761A is plugged in, this dialog box will appear. ToN O TE F. Verify Your Module ConnectionU2761A User’s Guide Send Commands To This Instrument 1 Getting StartedG. Launch Your Agilent Measurement Manager N O TEDouble-click the Measurement Manager software icon on softwareFor more information on how to use the Measurement Manager, refer to N O TE1 Getting Started the Agilent Measurement Manager help file55-Pin Backplane Connector Pin Configuration SSI timing signalU2761A User’s Guide Getting StartedChassis Installation 1 Getting StartedFeatures and Functions Output ConfigurationPhase Modulation PM Phase-Shift Keying PSK ModulationOutput Configuration IntroductionOutput Function 2 Features and FunctionsAmplitude Limitation Function LimitationU2761A User’s Guide Soft Front Panel Operation 2 Features and FunctionsWaveform pattern selection Waveform parameters Figure 2-1 U2761A soft front panelRemote Interface Operation Output FrequencyU2761A User’s Guide Function Limitations Duty Cycle Limitations2 Features and Functions Soft Front Panel OperationOutput Amplitude Offset Voltage LimitationsLimits Due to Output Termination The default amplitude is 1 Vpp into 50 Ω for all functionsLimits Due to Units Selection 2 Features and FunctionsSoft Front Panel Operation Figure 2-4 Panel view of the amplitude sectionDC Offset Voltage Limits Due to AmplitudeThe default offset is 0 V for all functions Remote Interface Operation2 Features and Functions Soft Front Panel OperationRemote Interface Operation Figure 2-5 Panel view of the DC offset sectionOutput Units Soft Front Panel OperationRemote Interface Operation VOLTageUNIT VPPVRMSDBMOutput Termination 2 Features and FunctionsSoft Front Panel Operation Remote Interface OperationFigure 2-6 Panel view of the Tools menu U2761A User’s GuideDuty Cycle Square Waves Duty CycleLimits Due to Frequency 2 Features and FunctionsSoft Front Panel Operation Remote Interface OperationFigure 2-8 Panel view of the duty cycle section U2761A User’s GuideSymmetry Ramp Wave 2 Features and FunctionsSoft Front Panel Operation 0% SymmetryOutput Control Remote Interface OperationSoft Front Panel Operation Figure 2-11 Panel view of the output sectionSet Output Using SCPI Commands 2 Features and FunctionsRemote Interface Operation Example 1, To output a DC voltageExample 3, To output a Square wave Example 2, To output a Sine waveU2761A User’s Guide 2 Features and Functions Example 4, To output a Ramp wavePulse Waveform Pulse PeriodSoft Front Panel Operation Remote Interface OperationPulse Width 2 Features and FunctionsSoft Front Panel Operation Remote Interface OperationPulse Duty Cycle Soft Front Panel OperationRemote Interface Operation Duty Cycle = 100 ⋅ Pulse Width / Period2 Features and Functions Generate Pulse Waveform Using SCPI CommandsExample To Select AM Amplitude Modulation AMU2761A User’s Guide Carrier Waveform 2 Features and FunctionsSoft Front Panel Operation Remote Interface OperationCarrier Frequency Remote Interface OperationFigure 2-16 Panel view of the Arbitrary waveform Table 2-3 Carrier frequency for AMModulating Waveform 2 Features and FunctionsThe default modulating waveform is Sine wave Soft Front Panel OperationModulating Waveform Frequency Modulation Depthdefault modulation depth is 100% N O TE2 Features and Functions Generate AM Using SCPI CommandsExample To Select FM Frequency Modulation FMU2761A User’s Guide 2 Features and Functions Carrier WaveformSoft Front Panel Operation Remote Interface OperationCarrier Frequency Remote Interface OperationTable 2-4 Carrier frequency for FM U2761A User’s Guide2 Features and Functions Modulating WaveformSoft Front Panel Operation Remote Interface OperationFrequency Deviation Modulating Waveform FrequencySoft Front Panel Operation Remote Interface OperationGenerate FM Using SCPI Commands 2 Features and FunctionsSoft Front Panel Operation Remote Interface OperationTo Select PM Phase Modulation PMU2761A User’s Guide 2 Features and Functions Carrier WaveformSoft Front Panel Operation Remote Interface OperationCarrier Frequency Remote Interface OperationSoft Front Panel Operation Remote Interface Operation2 Features and Functions The default waveform is Sine waveModulating Waveform Modulating Waveform FrequencyPhase Deviation Generate PM Using SCPI Commands0 to 360 . The default phase deviation setting is Soft Front Panel OperationTo Select FSK Modulation Frequency-Shift Keying FSK Modulation2 Features and Functions Carrier Waveform Soft Front Panel OperationRemote Interface Operation Soft Front Panel OperationFSK Carrier Frequency 2 Features and FunctionsRemote Interface Operation Soft Front Panel OperationFSK “Hop” Frequency Soft Front Panel OperationRemote Interface Operation frequency is 100 Hz for all functionsGenerate FSK Modulation Using SCPI Commands FSK Rate2 Features and Functions Soft Front Panel OperationTo Select PSK Modulation Phase-Shift Keying PSK ModulationU2761A User’s Guide 2 Features and Functions Carrier WaveformSoft Front Panel Operation Remote Interface OperationPSK Carrier Frequency Remote Interface OperationSoft Front Panel Operation Remote Interface OperationPSK Rate PSK Deviation2 Features and Functions Soft Front Panel OperationExample Generate PSK Modulation Using SCPI CommandsU2761A User’s Guide To Select ASK Modulation Amplitude-Shift Keying ASK Modulation2 Features and Functions Carrier Waveform Soft Front Panel OperationRemote Interface Operation Soft Front Panel Operation2 Features and Functions Carrier FrequencyRemote Interface Operation Soft Front Panel OperationGenerate ASK Modulation Using SCPI Commands ASK RateSoft Front Panel Operation Remote Interface OperationFrequency Sweep To Select Sweep2 Features and Functions Soft Front Panel OperationStart Frequency and Stop Frequency Remote Interface OperationSoft Front Panel Operation Figure 2-28 Panel view of sweepSweep Mode Sweep Time2 Features and Functions Remote Interface OperationSweep Trigger Source Soft Front Panel OperationRemote Interface Operation Soft Front Panel OperationSet Frequency Sweep Using SCPI Commands 2 Features and FunctionsRemote Interface Operation ExampleTriggering Trigger Source ChoicesSoft Front Panel Operation U2761A User’s GuideInternal Triggering Manual Triggering2 Features and Functions Remote Interface OperationExternal Triggering Remote Interface OperationSoft Front Panel Operation Remote Interface OperationTrigger Input Signal Trigger Output Signal2 Features and Functions Trigger in Rising edge shown Figure 2-29 Trigger input pulseSoft Front Panel Operation Remote Interface Operationfalling edge, select Positive for rising edge and U2761A User’s Guide2 Features and Functions Set Triggering Using SCPI CommandsExample To Create and Store an Arbitrary Waveform Arbitrary WaveformsU2761A User’s Guide 2 Features and Functions 1 Select the Arbitrary waveform function2 Set the waveform period 3 Set the waveform voltage limits6 Start waveform editing process 7 Sending waveform to the U2761A8 Saving the waveform 9 Exiting the waveform editor2 Features and Functions U2761A User’s GuideCharacteristics and Specifications Product Characteristics Product Specifications and CharacteristicsAgilent Technologies Agilent U2761A USB Modular Function Generator User’s GuideProduct Characteristics 3 Characteristics and SpecificationsPOWER CONSUMPTION SAFETY COMPLIANCEProduct Specifications and Characteristics WAVEFORM CHARACTERISTICS SineWAVEFORMS SquareRamp, Triangle PulseArbitrary 3 Characteristics and SpecificationsCOMMON CHARACTERISTICS Amplitude DC offsetMain output Internal frequency referenceMODULATION AM 3 Characteristics and SpecificationsSWEEP CHARACTERISTICS TRIGGER CHARACTERISTICS Trigger inputTrigger output U2761A User’s Guide3 Characteristics and Specifications U2761A User’s GuideIndex U2761A User’s Guidephase noise PM limitsL-Mount kit 7 offset. Refer to DC offsetAgilent Technologies, Inc First Edition, April 30 U2761-90000