Operating Manual Vol 1 - ES Documentation

SMIQ Digital Standard W-CDMA (NTT DoCoMo/ARIB 0.0)STATEMODE...Switch on/off of modulation Digital Standard W-CDMA. Vector modulation anddigital modulation will be switched off automatically.STATE = ON starts the calculation of a chip sequence based on the currentsettings. The lenght of the chip sequence and therefore the duration ofcalculation are determined by parameter SEQUENCE LENGTH.IEC/IEEE-bus command :SOUR:WCDM:STAT ONOpens a window for selecting from the different modes to determine thenumber of code channels.The physical channel type (TYPE), the symbol rate, some spreading parameters(SPREAD CODE) and the source for modulation data (DATA) can beseparately defined for each channel. Each channel can be switched on or off(STATE).4CHAN8CHAN15CHANActivates the generation of a signal with up to 4 codechannels (channel No. 0 to 3).The relative power (POWER) of the channels can befreely determined in range -30 dB to 0 dB.IEC/IEEE-bus :SOUR:WCDM:MODE CHAN4Activates the generation of a signal with up to 8 codechannels (channel No. 0 to 7).The relative power (POWER) of channel 0 can be freelydetermined in range -30 dB to 0 dB. The power setting ofchannel 1 also determines the power setting of channels2 to 7. This means that channels 1 to 7 all have the samepower provided when the channels are switched on.IEC/IEEE-bus :SOUR:WCDM:MODE CHAN8Activates the generation of a signal with up to 15 codechannels (channel No. 0 to 14).The relative power of channels cannot be freely definedsince all activated code channels have the same power.The relative power is displayed (POWER).IEC/IEEE-bus :SOUR:WCDM:MODE CHAN151125.5555.03 2.155E-9