Operating Manual Vol 1 - ES Documentation

SMIQVector ModulationMenu selection:VECTOR MODFig. 2-34 VECTOR MOD menu (preset settings), equipped with option SMIQB47 and IQMOD var. 8or higherSTATEPOWER RAMPCONTROLIMPAIRMENT STATESwitches the vector modulation on and off.IEC/IEEE-bus command SOUR:DM:IQ:STAT ONSwitches the POW RAMP input for analog level control on and off. Thus anexternal control signal can be used for carrier envelope modulation in parallelto vector modulation.IEC/IEEE-bus command SOUR:DM:IQ:PRAM AEXTSwitches I/Q impairment on and off.IEC/IEEE-bus command SOUR:DM:IQ:IMP:STAT ONLEAKAGE Value entered for residual carrier .IEC/IEEE-bus command SOUR:DM:LEAK 10PCTIMBALANCEQUADRATUREOFFSETIQ SWAPCW > IQ TRANSITIONValue entered for imbalanced modulation of I and Q vectors.IEC/IEEE-bus command SOUR:DM:IQR -5PCTValue entered for quadrature offset .IEC/IEEE-bus command SOUR:DM:QUAD:ANGL 4DEGSelection between normal and inverted I/Q modulation. Interchanging the I andQ signals inverts the modulation sidebands.OFFNormal I/Q modulation.ONI and Q signals interchanged.IEC/IEEE-bus command SOUR:DM:IQSW:STAT ONSelection between normal and fast setting time during the transition to CWafter vector modulation (including DIGITAL MOD, DIGITAL STD and ARBMOD). In the FAST mode, the CW-IQ mode is activated for CW and thepoorer spectral characteristics of vector modulation apply. For this reason, theFAST mode should be activated only if very fast switchover between CW andVECTOR MOD is required.IEC/IEEE-bus command:SOUR:DM:IQ:TRAN:NORM|FAST1125.5555.03 2.67E-8