Boonton55xxx IVI Driver Reference

IBoonton55xxxAcquisition Interface

See Also

Visual Basic

Public Interface IBoonton55xxxAcquisition

C#

public interface IBoonton55xxxAcquisition

Visual C++

__interface IBoonton55xxxAcquisition

Name

Description

FetchLatency

The maximum amount of latency a fetch measurement may have. This setting adjusts how often automatic measurements and marker measurements are recalculated.

InitiateContinuous

Set or return the data acquisition mode for single or free-run measurements. If INITiate:CONTinuous is set to ON, the instrument immediately begins taking measurements (Modulated, CW and Statistical Modes), or arms its trigger and takes a measurement each time a trigger occurs (Pulse Mode). If set to OFF, the measurement will begin (or be armed) as soon as the INITiate command is issued, and will stop once the measurement criteria (averaging, filtering or sample count) has been satisfied. Note that INITiate:IMMediate and READ commands are invalid when INITiate:CONTinuous is set to ON; however, by convention this situation does not result in a SCPI error.

MeasurementMode

There are three basic measurement modes - pulse power, modulated power, and statistical power. Each mode is targeted towards a specific type of measurement.The Pulse Mode is used with peak power sensors. The instrument functions as an enhanced peak power analyzer and provides the functionality of a random repetitive sampling oscilloscope for viewing and analyzing the RF power envelope of signals.The Modulated Mode is designed for continuous, true average power measurements of complex modulated signals. The Statistical Mode is used for advanced analysis of non-periodic modulated signals. This mode does not require a trigger event to make measurements and is useful for signals that are noise-like such as CDMA, OFDM, or QAM. In Statistical Mode, the RF signal is sampled continuously at high speed, without discarding or losing any data.

Name

Description

Abort

Terminates any measurement in progress and resets the state of the trigger system. Note that Abort will leave the measurement in a stopped condition with all current measurements cleared.

Clear

Clear display traces and all data buffers. Clears averaging filters to empty.

Initiate

Starts a single measurement cycle when INITiate:CONTinuous is set to OFF. In Modulated Mode, the measurement will complete once the power has been integrated for the full FILTer time. In Pulse Mode, enough trace sweeps must be triggered to satisfy the AVERaging setting. In Statistical Mode, acquisition stops once the terminal condition(s) are met. In each case, no reading will be returned until the measurement is complete. This command is not valid when INITiate:CONTinuous is ON, however, by convention this situation does not result in a SCPI error

Status

Returns whether an acquisition is in progress, complete, or if the status is unknown.