Hi RS engineer,We are currently trying to use the R&S SMU200A to send TDMA signals of the DMR protocol, According to the "ETSI_TS102_361-1" specification, the signals format are TDMA, which are Slot 1 & Slot 2 (as shown below).We want to generate Signal that Slot 1 has a modulated signal, Slot 2 has no signal or a modulated signal with a different RF intensity.Will now we can generate signals with Slot 1 has modulated signal and Slot 2 without modulation, but found that Slot 2 has modulation signal, but there is still has carrier signal.