observing AM waveforms using ADALM-PLUTO and simulink

I need to broadcast radio-frequency signals at a frequency in the 902MHz to 928MHz frequency band. The broadcast waveform consists of both a DSB-LC and a DSB-SC communication signal, separated from one another by 30kHz. That is, the carrier frequencies of the two passband signals dier by 30kHz. Both passband signals are the result of modulating a sinusoidal carrier with a sinusoidal message signal.

I downloaded the support package for simulink. I do have both transmitter and receiver but I was not able to configure the transmitter to broadcast such frequency signals. Can someone help with the above question.