Sweep Mode, Sweep Time | Agilent Technologies U2761A manual

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

Contents

User’s Guide U T I O N Warn in G Safety Symbols General Safety Information Complies with the following safety and EMC requirements Environment Conditions Regulatory Markings Product Category Affixed product label is shown as below Declaration of Conformity Regulatory Information for Australia/New Zealand This Guide… Contents Introduction Output Function Phase Modulation PM To Select PM Index List of Figures XVI List of Tables Xviii Getting Started Various features of the U2761A Introduction Product Outlook Product at a GlanceBumpers Fan Ventilation Pin backplane connector USB inlet Power inlet Product Dimensions Dimensions Without Bumpers105.00 mm 175.00 mm 18.00 mm 25.00 mm 117.00 mm 180.00 mm 15.00 mm Dimensions With Bumpers41.00 mm Standard Purchase Items Inspection and Maintenance General MaintenanceInitial Inspection Electrical Check Installation Installation and ConfigurationWith Agilent VEE Pro, LabVIEW, or Microsoft Visual Studio Check Your System Hard-disk space 1 GB Install the IO Libraries Suite Install the Module Driver Install the Agilent Measurement Manager Getting Started Connect the Module to Your PC Proceeding Getting Started Follow the instructions below Select Ignore to disable the warning messageDriver Signing Options dialog box will appear Getting Started Verify Your Module Connection Send Commands To This Instrument IO Control will launch automatically when you start your PC Launch Your Agilent Measurement Manager Agilent Measurement Manager help file Pin Backplane Connector Pin Configuration Description Chassis Installation Pulse Waveform Triggering Output Configuration IntroductionOutput Function 1Output functions Function Limitation Waveform pattern selection Waveform parameters 1U2761A soft front panel Output Frequency 2Output frequency range Function Limitations Output Amplitude Offset Voltage Limitations Limits Due to Units Selection DC Offset Voltage Limits Due to Amplitude VOLTageOFFSet offset Output Units Output Termination OUTPutLOAD ohmsINFinity Duty Cycle Square Waves 7Square wave duty cycles APPLy command automatically sets the duty cycle to 50% Symmetry Ramp Wave 9Ramp wave duty cycles Output Control 11Panel view of the output section Set Output Using Scpi Commands Example 1, To output a DC voltage Example 2, To output a Sine wave Example 4, To output a Ramp wave Pulse Waveform Pulse Period Pulse Width 13Panel view of the pulse width section Pulse Duty Cycle Duty Cycle = 100 ⋅ Pulse Width / Period Generate Pulse Waveform Using Scpi Commands Example To Select AM Amplitude Modulation AMModulating frequency AM depth Carrier Waveform 15Panel view of AM Carrier Frequency 3Carrier frequency for AM Default modulating waveform is Sine wave Modulating Waveform Modulation Depth Modulating Waveform FrequencyPeak into a 50 Ω load Generate AM Using Scpi Commands To Select FM Frequency Modulation FMModulating frequency FM deviation FMSTATe Offon 4Carrier frequency for FM FMINTernalFUNCtion SINusoidSQUareRAMPNRAMpTRIangleUSER Frequency Deviation Generate FM Using Scpi Commands Modulating frequency Phase deviation Phase Modulation PMTo Select PM PMSTATe Offon 5Carrier frequency for PM Default waveform is Sine wave Phase Deviation Generate PM Using Scpi Commands To Select FSK Modulation Frequency-Shift Keying FSK ModulationFSK rate Hop frequency FSKeySTATe Offon FSK Carrier Frequency 6Carrier frequency for FSK FSK Hop Frequency 7Hop frequency Generate FSK Modulation Using Scpi Commands FSK Rate To Select PSK Modulation Phase-Shift Keying PSK ModulationPSK rate PSK deviation PSKeySTATe Offon PSK Carrier Frequency 8Carrier frequency for PSK PSK Rate PSK Deviation Generate PSK Modulation Using Scpi Commands To Select ASK Modulation Amplitude-Shift Keying ASK ModulationASK rate ASKeySTATe Offon 9Carrier frequency for ASK Generate ASK Modulation Using Scpi Commands ASK Rate To Select Sweep Frequency SweepFrequency Linear type Start frequency Stop frequency Start Frequency and Stop Frequency 28Panel view of sweep Sweep Mode Sweep Time Sweep Trigger Source Set Frequency Sweep Using Scpi Commands Triggering Trigger Source Choices Internal Triggering Manual Triggering External Triggering Trigger Input Signal Trigger Output SignalTrigger Rising edge shown Trigger out 500 μs Rising edge shown OUTPutTRIGger Offon OUTPutTRIGgerSLOPe POSitiveNEGative Set Triggering Using Scpi Commands Arbitrary Waveforms To Create and Store an Arbitrary Waveform Select the Arbitrary waveform function Exiting the waveform editor Features and Functions Characteristics and Specifications Product Characteristics Operating Environment Product Specifications and Characteristics Waveforms Ramp, Triangle Units Vpp, Vrms, dBm Resolution Digits ±1% of settling ±5 mV ±10 mV @ Hi-Z±5 V across open circuit Accuracy ±8 ppm in 1 year Modulation Sweep Characteristics 102 Index Offset. Refer to DC offset United States Tel 800 829