Operating Manual R&S SMIQ - Volume 1 - Rohde & Schwarz

Test ProceduresSMIQ5.3.9.4 Residual PhiM with AMTest assemblyMeasurementSee section "Test Assemblies", standard test assembly for analogmodulations Settings on SMIQ:- Level 0 dBm- Select INT in the menu ANALOG MOD/AM/AM SOURCE INT.- Modulation depth 30%- Modulation frequency 1 kHz Vary the carrier frequency from 5 MHz to RF max . For recommendedsetting values see Table 5-2, at least * frequencies. Measure the resulting phase modulation on the modulation analyzerwith a 3 kHz lowpass filter and peak detection.5.3.9.5 Level Monitoring at Input EXT1Test assemblyTest setupMeasurementSee section "Test Assemblies", standard test assembly for analogmodulations with audio analyzer Connect the generator output of the audio analyzer to the externalmodulation input EXT1. Settings on SMIQ:- Select EXT1 in the menu ANALOG MOD/AM/AM SOURCE EXT. There must be no error message if the input level is correct. An error message must be displayed when the deviation attainsthe value given in the data sheet.1125.5555.03 5.32E-9