Consider this very simple flowgraph below. It should broadcast FM silence at 104.5 MHz. There is no station in my vicinity at 104.5. When I tune my receiver at this frequency, I do hear silence, but when I turn the volume up all the way, there is some static that I can hear. I can hear it on multiple receivers. Now, I understand that in radio, there will always be static, but this seems a bit more than "normal". Is there any way I can dig deeper into this to reduce the static... Is it a function of the fact that the hackrf is an 8 bit SDR, and perhaps using an SDR with better resolution might make the resulting signal quieter?