rpitx is a general radio frequency transmitter for Raspberry Pi which doesn’t require any other hardware unless filter to avoid intererence. It can handle frequencies from 5 KHz up to 1500 MHz.
Rpitx is a software made for educational on RF system. It has not been tested for compliance with regulations governing transmission of radio signals. You are responsible for using your Raspberry Pi legally.
A forum is available : https://groups.io/g/rpitx
_Created by Evariste Courjaud F5OEO. See Licence for using it.