39Measuring Multiple SignalsEasily Measure Varying Levels of Modulated Power Compared to a ReferenceEasily Measure Varying Levels of Modulated Power Compared to aReferenceThis section demonstrates a method to measure the complex modulated power of areference device or setup and then compare the result of adjustments and changes tothat or other devices.The Delta Band/Interval Power Marker function will be used to capture thesimulated signal power of a reference device or setup and then compare the resultingpower level due to adjustments or DUT changes.An important key to making accurate Band Power Marker measurements is to insurethat the Average Type under the Meas Setup key is set to “Auto”.Step Action Notes1 Connect the source RFOUTPUT to the analyzerRF INPUT as shown.2 Set up the signal sources. a. Set up a 4-carrier W-CDMAsignal.b. Set the source frequency to 1.96GHz.c. Set the source amplitude to−10 dBm.3 Select the mode. • Press Mode, Spectrum Analyzer.4 Preset the analyzer. • Press Mode Preset.5 Tune to W-CDMA signal. • Press FREQ Channel, AutoTune, 300, MHz.6 Set the analyzer referencelevel.• Press AMPTD Y Scale, RefLevel, 0, dBm.
