I found an Open Data List with all TV, Radio and DAB+ Tower. So i thought about why not make a Heatmap when I take the Train. Since I know where I am -> GNSS and who the Tower is -> Open Data List and the Output power to it should not be hard to scan only the Channels who are in use in that Area.
So the have to Scan maybe 10 Channels in a Loop.
Is there a Software and, or a Plugin for SDR#? Or maybe with GNU Radio?
Thanks!