Operating Manual Vol 1 - ES Documentation

SMIQDigital Standard 3GPP W-CDMA (FDD)2.14.2.1 Menu WCDMA/3GPPThe following figure shows the menu for generating a downlink signal (transmit signal of base station).Fig. 2-104DIGITAL STD - WCDMA/3GPP - Downlink menuFor clarity, associated parameters are combined to subgroups by horizontal lines.STATESwitch-on/off of modulation - digital standard 3GPP W-CDMA. If vectormodulation, digital modulation or another digital standard are on, they areautomatically switched off.STATE = ON starts the calculation of a chip sequence based on currentsettings. The length of the chip sequence, and so the duration of thecalculation, is determined by the SEQUENCE LENGTH parameter.IEC/IEEE-bus command :SOUR:W3GP:STAT ONNote:When a parameter is changed, STATE is automatically switched to OFF to ensure that the setvalues and the output signal are consistent. After changing all the values, STATE canmanually be set to ON. This is possible via menu parameter STATE and with the MODON/OFF key below the rollkey.A progress bar is displayed while the chip sequence is calculated. The progress of the calculation canalso be read via the remote control interfaces.IEC/IEEE-bus command:SOUR:W3GP:CAL:PROG?1125.5555.03 2.179E-9