Agilent Technologies N1911A Manual de usuario descargar pdf (Pagina 1)

Introduction

In many cases, power meters and power sensors are used for system calibration in manufactur-

ing. During system calibration, frequency sweep or power sweep needs to be carried out to

compensate for errors or system losses. Sometimes this extends test time, depending on the

number of system calibration points used to complete the process.

Conventionally, a signal generator is used as a source and the power meter is connected to the

system for system calibration. The signal generator steps thru frequency/power with constant

power/frequency. The power meter is set to the frequency based on the signal generator and

captures a measurement. This process continues until the end of the frequency/power step

point. Completing one system calibration in manufacturing extends test time. To shorten the

test time, a new firmware enhancement included in P-series power meters allows users to

speed up the measurement or calibration using an external triggering capability. This feature

performs the frequency/power sweep automatically with signal source and synchronizes

through hardware triggering.

This application note demonstrates the capability of the Agilent Technologies N1911A/12A

P-Series power meter to perform the external triggering 1-way and 2-way communication

frequency and power sweep measurements. In the provided procedures [ ] indicates command

keys on the instrument’s front panel and bold text indicates a softkey or selection choice on the

instrument’s screen.

External Triggering 2-Way Communication

Frequency & Power Sweep Measurement

Using Agilent N1911A and N1912A

P-Series Power Meters

Application Brief

This application note applies

to the following products

from Agilent Technologies:

• N1911/12A P-Series

power meter

• Agilent power sensors

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Indice de contenidos

Pagina 1 - P-Series Power Meters

IntroductionIn many cases, power meters and power sensors are used for system calibration in manufactur-ing. During system calibration, frequency swee

Pagina 2 - Frequency Sweep Mode

2Frequency Sweep ModeFrequency Sweep mode is used in a frequency response calibration system where the ampli-tude is constant and the frequency of the

Pagina 3 - Power Sweep Mode

3Power Sweep ModePower Sweep mode is used in a power level calibration setup when the frequency is constant (CW frequency) and the amplitude of the po

Pagina 4

4One-Way External Triggering CommunicationThe signal source’s TRIG OUT is connected to the power meter’s TRIG IN (see Figure 1). Then the Start, Stop,

Pagina 5 - SCPI Description

5External triggering 2-way frequency sweep measurementUse the following SCPI commands for external triggering 2-way frequency sweep measurement.Table

Pagina 6

6External triggering 2-way power sweep measurementUse the following SCPI commands for external triggering 2-way power sweep measurement.Table 4. SCPI

Pagina 7 - References

7Comparison of 1-way and 2-way External TriggeringIn 1-way or 2-way external trigger measurement, measurement data is stored in the buffer and the FE

Pagina 8 - Agilent Channel Partners

For more information on Agilent Tech-nologies’ products, applications or services, please contact your local Agilent office. The complete list is avai