Software Defined Radio (SDR) uses radio hardware connected to a computer that serves as the entire signal handling and processing component of the receiver. A basic SDR system consists of a computer equipped with soundboard attached to a radio receiver. SDR units can be designed to receive and transmit. A basic SDR involves an analog-to-digital conversion chip connected to an antenna.
A lot more SDR radio equipment is becoming available today and at lower prices.
Examples
- Software Defined Radio Receiver USB Stick - RTL2832 w/R820T
- SDR-IQ
- RTL2843u plus the Ham It Up HF Converter
- Afedri SDR-Net
- Funcube Pro Plus
- NooElec