Boonton 4540 Peak Power Meter User Manual Bedienungsanleitung PDF herunterladen (Seite 56)

Boonton 4540 Series RF Power Meter

Operation

4-8

4.5.5 Measure Menu

The Measure menu contains items for controlling measurement acquisition and mode.

Main > Measure > Measurement

Description: Set or return the state of the data acquisition mode for

single or free-run measurements. If Measurement is set

to On, the 4540 immediately begins taking

measurements (Modulated 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) if the Single

Sweep menu is selected, and will stop once the

measurement criteria (averaging) has been satisfied. If

the measurement mode is set to Modulated or

Statistical, no measurements will be made if

measurement is set to off.

Menu Type: Toggle.

Choices: On, Off

SCPI Command: INITiate:CONTinuous <Boolean>

Main > Measure > Mode

Description: Set or return the system measurement mode. Modulated

mode is a continuous measurement mode primarily for

continuously modulated or CW signals, Pulse mode is a

signal triggered, oscilloscope-like mode that acquires

and analyzes the a pulsed signal as a series of one or

more triggered sweeps, and Statistical mode performs

long-term power distribution analysis on modulated

signals, and may be operated in a start-stop continuous

mode, or a decimated continuous mode.

Note that the measurement mode is global, and affects both channels in a two channel

instrument. If either channel has a CW sensor installed, peak or statistical measurements

will be unavailable in that channel, only the ―primary‖ average power measurement will

be performed.

Menu Type: Selection.

Choices: Pulse, Modulated, Statistical.

SCPI Command: CALCulate:MODE <character data>

Fig.4-5 Measure Menu

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Boonton 4540 Peak Power Meter User Manual Bedienungsanleitung Seite 56