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Agilent Technologies U2761A manual Frequency Sweep, To Select Sweep, Soft Front Panel Operation

Models: U2761A

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Frequency Sweep

2 Features and Functions

Frequency Sweep

In the frequency sweep mode, the U2761A “steps” from the start frequency to the stop frequency at a sweep rate which you specify. You can sweep up or down in frequency, and with either linear or logarithmic spacing. You can also configure the U2761A to output a single sweep (one pass from start frequency to stop frequency) by applying an External or Manual (software) trigger. The U2761A can produce a frequency sweep for Sine, Square, Ramp, Triangle, or Arbitrary’s waveform (Pulse and DC are not allowed). The figure below shows an example of the frequency sweep.

Frequency

Linear type

Start frequency

Stop frequency

Figure 2-27Frequency sweep

To Select Sweep

The U2761A does not allow the sweep mode to be enabled at the same time that any modulation mode is enabled.

Soft Front Panel Operation

Click Sweep as shown in Figure 2- 28. To output sweep, configure the settings for frequencies, output amplitude, offset, sweep type and time, and trigger setup.

80	U2761A User’s Guide

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Agilent Technologies U2761A manual Frequency Sweep, To Select Sweep, Soft Front Panel Operation, Features and Functions

Contents

Agilent Technologies Agilent U2761A USB Modular Function/Arbitrary Waveform GeneratorUser’s Guide Notices WarrantySafety Notices C A U T I O NSafety Symbols U2761A User’s GuideC A U T I O N General Safety InformationWARN IN G Do not operate the product in an explosive atmosphere or in theU2761A User’s Guide Environment ConditionsRequirements Regulatory Markings U2761A User’s Guide Waste Electrical and Electronic Equipment WEEE Directive 2002/96/ECDo not dispose in domestic household waste U2761A User’s Guide Declaration of ConformityVIII Standard1Performance Criteria U2761A User’s GuideAdditional Information Regulatory Information for CanadaIn This Guide… 2 Features and Functions3 Characteristics and Specifications 1 Getting StartedChassis Installation ContentsInstallation XVIIContents Features and FunctionsContents Phase Modulation PMPhase Deviation To Select PMContents Product Specifications and CharacteristicsIndex 3 Characteristics and SpecificationsFM waveform List of FiguresAM waveform PM waveformU2761A User’s Guide U2761A User’s Guide Table 1-1 Synchronous Simultaneous Interface SSI connectorList of Tables Carrier frequency for PSKXVIII U2761A User’s GuideAgilent U2761A USB Modular Function Generator User’s Guide Getting StartedAgilent Technologies 1 Getting Started Various features of the U2761AIntroduction Top View Product at a GlanceProduct Outlook U2761A User’s GuideUSB indicator Power indicator 10 MHz reference connector Front ViewRear View Trigger in connector Output connector Trigger out connectorTop View Product DimensionsDimensions Without Bumpers Front ViewFront View Dimensions With BumpersTop View 1 Getting StartedStandard Purchase Items U2761A User’s GuideInitial Inspection Inspection and MaintenanceGeneral Maintenance Electrical CheckN O TE Installation and ConfigurationInstallation U2761A User’s GuideHard-disk space 1 GB A. Check Your System1 Getting Started N O TE B. Install the IO Libraries SuiteN O TE U2761A User’s Guide1 Getting Started C. Install the Module DriverN O TE D. Install the Agilent Measurement Manager U2761A User’s Guide10 Fill in the Customer Information Form accordingly and click Next N O TE1 Getting Started Yes, this time only and click Next to proceed E. Connect the Module to Your PCN O TE U2761A User’s Guide1 Getting Started U2761A User’s Guidefollow the instructions below Select Ignore to disable the warning messageN O TE 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. ToU2761A User’s Guide F. Verify Your Module ConnectionN O TE Send Commands To This Instrument 1 Getting StartedDouble-click the Measurement Manager software icon on G. Launch Your Agilent Measurement ManagerN O TE software1 Getting Started For more information on how to use the Measurement Manager, refer toN O TE the Agilent Measurement Manager help fileU2761A User’s Guide 55-Pin Backplane Connector Pin ConfigurationSSI timing signal Getting StartedChassis Installation 1 Getting StartedPhase Modulation PM Features and FunctionsOutput Configuration Phase-Shift Keying PSK ModulationOutput Function Output ConfigurationIntroduction 2 Features and FunctionsU2761A User’s Guide Function LimitationAmplitude Limitation Waveform pattern selection Waveform parameters Soft Front Panel Operation2 Features and Functions Figure 2-1 U2761A soft front panelU2761A User’s Guide Output FrequencyRemote Interface Operation 2 Features and Functions Function LimitationsDuty Cycle Limitations Soft Front Panel OperationLimits Due to Output Termination Output AmplitudeOffset Voltage Limitations The default amplitude is 1 Vpp into 50 Ω for all functionsSoft Front Panel Operation Limits Due to Units Selection2 Features and Functions Figure 2-4 Panel view of the amplitude sectionThe default offset is 0 V for all functions DC Offset VoltageLimits Due to Amplitude Remote Interface OperationRemote Interface Operation 2 Features and FunctionsSoft Front Panel Operation Figure 2-5 Panel view of the DC offset sectionRemote Interface Operation Output UnitsSoft Front Panel Operation VOLTageUNIT VPPVRMSDBMOutput Termination 2 Features and FunctionsFigure 2-6 Panel view of the Tools menu Soft Front Panel OperationRemote Interface Operation U2761A User’s GuideLimits Due to Frequency Duty Cycle Square WavesDuty Cycle 2 Features and FunctionsFigure 2-8 Panel view of the duty cycle section Soft Front Panel OperationRemote Interface Operation U2761A User’s GuideSoft Front Panel Operation Symmetry Ramp Wave2 Features and Functions 0% SymmetrySoft Front Panel Operation Output ControlRemote Interface Operation Figure 2-11 Panel view of the output sectionRemote Interface Operation Set Output Using SCPI Commands2 Features and Functions Example 1, To output a DC voltageU2761A User’s Guide Example 2, To output a Sine waveExample 3, To output a Square wave 2 Features and Functions Example 4, To output a Ramp waveSoft Front Panel Operation Pulse WaveformPulse Period Remote Interface OperationSoft Front Panel Operation Pulse Width2 Features and Functions Remote Interface OperationRemote Interface Operation Pulse Duty CycleSoft Front Panel Operation Duty Cycle = 100 ⋅ Pulse Width / PeriodExample Generate Pulse Waveform Using SCPI Commands2 Features and Functions U2761A User’s Guide Amplitude Modulation AMTo Select AM Soft Front Panel Operation Carrier Waveform2 Features and Functions Remote Interface OperationFigure 2-16 Panel view of the Arbitrary waveform Carrier FrequencyRemote Interface Operation Table 2-3 Carrier frequency for AMThe default modulating waveform is Sine wave Modulating Waveform2 Features and Functions Soft Front Panel Operationdefault modulation depth is 100% Modulating Waveform FrequencyModulation Depth N O TEExample Generate AM Using SCPI Commands2 Features and Functions U2761A User’s Guide Frequency Modulation FMTo Select FM Soft Front Panel Operation 2 Features and FunctionsCarrier Waveform Remote Interface OperationTable 2-4 Carrier frequency for FM Carrier FrequencyRemote Interface Operation U2761A User’s GuideSoft Front Panel Operation 2 Features and FunctionsModulating Waveform Remote Interface OperationSoft Front Panel Operation Frequency DeviationModulating Waveform Frequency Remote Interface OperationSoft Front Panel Operation Generate FM Using SCPI Commands2 Features and Functions Remote Interface OperationU2761A User’s Guide Phase Modulation PMTo Select PM Soft Front Panel Operation 2 Features and FunctionsCarrier Waveform Remote Interface OperationSoft Front Panel Operation Carrier FrequencyRemote Interface Operation Remote Interface OperationModulating Waveform 2 Features and FunctionsThe default waveform is Sine wave Modulating Waveform Frequency0 to 360 . The default phase deviation setting is Phase DeviationGenerate PM Using SCPI Commands Soft Front Panel Operation2 Features and Functions Frequency-Shift Keying FSK ModulationTo Select FSK Modulation Remote Interface Operation Carrier WaveformSoft Front Panel Operation Soft Front Panel OperationRemote Interface Operation FSK Carrier Frequency2 Features and Functions Soft Front Panel OperationRemote Interface Operation FSK “Hop” FrequencySoft Front Panel Operation frequency is 100 Hz for all functions2 Features and Functions Generate FSK Modulation Using SCPI CommandsFSK Rate Soft Front Panel OperationU2761A User’s Guide Phase-Shift Keying PSK ModulationTo Select PSK Modulation Soft Front Panel Operation 2 Features and FunctionsCarrier Waveform Remote Interface OperationSoft Front Panel Operation PSK Carrier FrequencyRemote Interface Operation Remote Interface Operation2 Features and Functions PSK RatePSK Deviation Soft Front Panel OperationU2761A User’s Guide Generate PSK Modulation Using SCPI CommandsExample 2 Features and Functions Amplitude-Shift Keying ASK ModulationTo Select ASK Modulation Remote Interface Operation Carrier WaveformSoft Front Panel Operation Soft Front Panel OperationRemote Interface Operation 2 Features and FunctionsCarrier Frequency Soft Front Panel OperationSoft Front Panel Operation Generate ASK Modulation Using SCPI CommandsASK Rate Remote Interface Operation2 Features and Functions Frequency SweepTo Select Sweep Soft Front Panel OperationSoft Front Panel Operation Start Frequency and Stop FrequencyRemote Interface Operation Figure 2-28 Panel view of sweep2 Features and Functions Sweep ModeSweep Time Remote Interface OperationRemote Interface Operation Sweep Trigger SourceSoft Front Panel Operation Soft Front Panel OperationRemote Interface Operation Set Frequency Sweep Using SCPI Commands2 Features and Functions ExampleSoft Front Panel Operation TriggeringTrigger Source Choices U2761A User’s Guide2 Features and Functions Internal TriggeringManual Triggering Remote Interface OperationSoft Front Panel Operation External TriggeringRemote Interface Operation Remote Interface Operation2 Features and Functions Trigger Input SignalTrigger Output Signal Trigger in Rising edge shown Figure 2-29 Trigger input pulsefalling edge, select Positive for rising edge and Soft Front Panel OperationRemote Interface Operation U2761A User’s GuideExample Set Triggering Using SCPI Commands2 Features and Functions U2761A User’s Guide Arbitrary WaveformsTo Create and Store an Arbitrary Waveform 2 Set the waveform period 2 Features and Functions1 Select the Arbitrary waveform function 3 Set the waveform voltage limits8 Saving the waveform 6 Start waveform editing process7 Sending waveform to the U2761A 9 Exiting the waveform editor2 Features and Functions U2761A User’s GuideAgilent Technologies Characteristics and SpecificationsProduct Characteristics Product Specifications and Characteristics Agilent U2761A USB Modular Function Generator User’s GuidePOWER CONSUMPTION Product Characteristics3 Characteristics and Specifications SAFETY COMPLIANCEWAVEFORMS Product Specifications and CharacteristicsWAVEFORM CHARACTERISTICS Sine SquareArbitrary Ramp, TrianglePulse 3 Characteristics and SpecificationsMain output COMMON CHARACTERISTICS AmplitudeDC offset Internal frequency referenceMODULATION AM 3 Characteristics and SpecificationsTrigger output SWEEP CHARACTERISTICSTRIGGER CHARACTERISTICS Trigger input U2761A User’s Guide3 Characteristics and Specifications U2761A User’s GuideIndex U2761A User’s GuideL-Mount kit 7 phase noise PMlimits offset. Refer to DC offsetAgilent Technologies, Inc First Edition, April 30 U2761-90000