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rfsiggen

Connection to Quick-Control RF Signal Generator instrument

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Description

The Quick-Control RF Signal Generator can be used for any RF signal generator that uses an underlying IVI-C driver. You can also use it for an NI™ Vector Signal Transceiver (VST) or Vector Signal Generator (VSG) that uses the NI-RFSG driver. You do not have to directly deal with the underlying drivers.

For information on the prerequisites for using rfsiggen, see Quick-Control RF Signal Generator Requirements.

Creation

Syntax

rf = rfsiggen
rf = rfsiggen(resource)
rf = rfsiggen(resource,driver)

Description

rf = rfsiggen creates the RF signal generator object rf to communicate with an RF signal generator instrument. You must specify a resource or a resource and driver later.

example

rf = rfsiggen(resource) additionally specifies the resource, and connects it to the RF signal generator instrument designated by the resource. This is the VISA resource string for the instrument.

example

rf = rfsiggen(resource,driver) additionally specifies the driver, which is the underlying driver to use with the instrument. If it is not specified, the driver is auto-detected.

example

Input Arguments

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VISA resource string for your instrument, specified as a string. Set this before connecting to the instrument. Setting it during object creation is optional and can be used if you know the resource string for your instrument. Otherwise, you can set it after object creation.

Example: rf = rfsiggen('TCPIP0::172.28.22.99::inst0::INSTR')

Data Types: char | string

Underlying driver to use with the instrument, specified as a string. Set this before connecting to the instrument. If it is not specified, the driver is auto-detected.

Example: rf = rfsiggen('TCPIP0::172.28.22.99::inst0::INSTR','AgRFSigGen')

Data Types: char | string

Properties

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Instrument Settings

This property is read-only.

Frequency of the generated RF output signal, specified as a number in Hz.

Data Types: double

This property is read-only.

Amplitude (power/level) of the RF output signal, specified as a number in dBm.

Data Types: double

This property is read-only.

Whether the RF output signal is enabled or disabled, specified as a numeric or logical 1 (true) or 0 (false).

Data Types: logical

This property is read-only.

Whether IQ (vector) modulation of the RF output signal is enabled or disabled, specified as a numeric or logical 1 (true) or 0 (false).

Data Types: logical

This property is read-only.

Source of the signal that the signal generator uses for IQ modulation, specified as a character vector.

Data Types: char | string

This property is read-only.

Whether the inverse phase rotation of the IQ signal by swapping the I and Q inputs is enabled or disabled, specified as a numeric or logical 1 (true) or 0 (false).

Data Types: logical

ArbGenerator Settings

This property is read-only.

Sample frequency, specified as a number in Hz.

Data Types: double

This property is read-only.

Trigger source for the ARB waveform, specified as a character vector.

Data Types: char | string

This property is read-only.

Selected waveform from the pool of available waveforms, specified as a character vector.

Data Types: char | string

Communication Properties

This property is read-only.

Communication status, specified as 'open' or 'closed'.

Data Types: char | string

RF signal generator identifier, specified as a character vector.

Data Types: char | string

Driver configuration, specified as 'auto' or 'manual'. If set to 'auto', you do not have to set a driver name before connecting to an instrument. If set to 'manual', a driver name must be provided before connecting.

Data Types: char | string

RF signal generator driver, specified as a character vector. Use only if DriverDetectionMode is set to 'manual'. Use it to give driver name. Only use if driver name cannot be figured out programmatically.

Data Types: char | string

Object Functions

Use these object functions with any Quick-Control interface.

driversList of available instrument drivers for Quick-Control interfaces
resourcesList of available instrument resources for Quick-Control interfaces
connectConnect device object to instrument
disconnectDisconnect device object from instrument

Use these object functions with Quick-Control RF signal generators.

downloadDownloads arbitrary waveform to RF signal generator
startEnables RF signal generator signal output and modulation output

Examples

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You can create the rfsiggen object without setting the resource, and then set it after object creation.

Create the RF Signal Generator object with no arguments.

rf = rfsiggen()

Find available resources using the resources function.

targets = resources(rf)

It returns a list of possible VISA resource strings, for example TCPIP0::172.28.22.99::inst0::INSTR.

Set the RF signal generator resource using the Resource property.

rf.Resource = 'TCPIP0::172.28.22.99::inst0::INSTR';

Connect to the instrument. When you assign the resource after object creation, you need to explicitly connect to the instrument.

connect(rf);

You can create the rfsiggen object and set the resource and driver during object creation. If those properties are valid, the object automatically connects to the instrument.

Create the RF signal generator object and connect using the specified resource string and driver.

rf = rfsiggen('TCPIP0::172.28.22.99::inst0::INSTR','AgRfSigGen')

Version History

Introduced in R2017b

See Also

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