Agilent Technologies 89441A manual To use the relative marker

Page 37

Characterizing a Filter

To use the relative marker

Continue from “To set up a frequency response measurement” or from “Using the absolute marker.”

1Move the marker to the largest part of the frequency response trace if it is not already there:

Press [Shift], [Marker].

2Establish the reference point for the relative (offset) marker:

Press [Marker], [zero offset]

or

Press [Shift], [Marker⇒ ]

3Move the marker with the knob to view the relative gain/loss of this particular filter at different frequencies.

The offset marker allows you to establish a reference point with the square-shaped marker. As you move diamond-shaped marker, the value displayed by the marker readout reflects the difference between the reference point and the marker.

The marker frequency and amplitude reflect the value of the diamond-shaped marker relative to the offset (square) marker

The marker reflects the amplitude and frequency relative to the reference point

5-5

Image 37

Contents Agilent Technologies 89441A Getting Started Guide Analyzer at a Glance Front Panel IiiThis page left intentionally blank Saftey Summary Fuses Safety Symbols Notation Conventions This Book This page left intentionally blank Table of Contents Xii General TasksUsing Online Help Enter the online help system Press Help To learn about online helpTo display help for hardkeys and softkeys To display a related help topic To select a topic from the help index Page Making Simple Noise Measurements Start an averaged measurement To measure random noiseTurn on the band power markers To measure band powerTurn on the carrier-to-noise marker To measure signal to noise ratiosCarrier-to-noise ratio normalized to one Hertz Page Using Gating to Characterize a Burst Signal Display should now appear as shown below To Use Time GatingSet up the time gating and examine the first burst Configure the display and the measurementExamine the second burst Page Measuring Relative Phase To measure the relative phase of an AM signal Measuring Relative Phase Zero the offset marker on the carrier To measure the relative phase of an PM signalCharacterizing a Filter Have option AY7 To set up a frequency response measurement If section for network measurements Press Auto Scale To use the absolute marker To use the relative marker To use the search marker Specify phase data for the second trace To display phaseActivate the second trace and select a coherence measurement To display coherenceGeneral Tasks To set up peripherals General Tasks To save data with an internal or RAM disk Press Return To recall data with an internal or RAM diskTo format a disk Define a constant To create a math functionDefine a math function Press Math, define F1 To use a math function Press measurement state or input/source state To display a summary of instrument parametersPage Preparing the Analyzer for Use Preparing the Analyzer for Use To chassis ground Analyzer cabinet can subject the operator to lethal voltages To do the incoming inspection Power if it is damagedPreparing the Analyzer for Use To connect the sections Preparing the Analyzer for Use To install the analyzer Select To change the if section’s line-voltage switchTo change the RF section’s line-voltage switch To change the if section’s fuse RF Section To change the RF section’s fuseInternet protocol address Return To connect the analyzer to a LANTo connect the analyzer to a parallel device To connect the analyzer to a serial deviceTo connect the analyzer to an external monitor To connect the analyzer to an Gpib deviceTo connect the optional keyboard Set the if section’s power switch to on lConnect the other end of the keyboard cable to the keyboard To connect the optional minimum loss pad To store the analyzer To clean the screenElectricity which can damage electronic components To transport the analyzerIf the if section will not power up If the RF section will not power up If the analyzer’s stop frequency is 10 MHz Page Index Basic HT Gpib QAM Dqpsk HTSNR SNR HTSee also traces Gpib HT FSKGpib LAN Manuals, for this product HT See LAN RAM QAM HTSee knob RPGSource LED Tdma Sync not Found HTEXT Trigger LED HT PSD HTVSB Page Agilent 89400-Series Documentation Roadmap Need Assistance?