Read-only

About NoiseFigure

Description

Returns the APPROXIMATE time the channel will take to make one noise receiver sweep given the current setup. This, along with the sweep time for a  standard receiver measurement and the following calculations, can tell you how long a “single” sweep would take so that you can set an appropriate "timeout" in your program.

Use Sweep Time Property to perform the standard sweep time query, shown as SSwpTime below.

To calculate the total sweep time:

Noise Figure on amplifiers (Vector Correction ON):

• 2*SSwpTime + X*NoiseReceiverSweepTime

• Where X = the number of noise receiver impedance state sweeps. (Default is 4).

Noise Figure on converters (NFX) correction on - increased number of sweeps due to extra mixer sweeps and source pulling:

• 4*SSwpTime + X*NoiseReceiverSweepTime (without source pulling)

• 8*SSwpTime + X*NoiseReceiverSweepTime (with source pulling)

• Where X = the number of noise receiver impedance state sweeps. (Default is 4).

Note: The number of sweeps to perform a noise measurement is annotated at the bottom of the Noise Figure screen.

 VB Syntax

swpTime = NF.NoiseReceiverSweepTime

Variable

(Type) - Description

swpTime

Variable to store the returned sweep time value (in seconds).

NF

A NoiseFigure (object)

Return Type

Double

Default

Not Applicable

Examples

swpTiime = NF.NoiseReceiverSweepTime()

C++ Syntax

HRESULT get_NoiseReceiverSweepTime (Double* SwpTime);

Interface

INoiseFigure3