Software Defined Radio (SDR)

Related wiki pages : Digital Signal Processing (DSP), Transceivers, Manufacturers Websites

A Software defined radio is on in which functions such as tuning, filtering and modulating/demodulating are performed by software rather than hardware. The ease with which this is now possible is due largely to advances in digital electronics.

An SDR is essentiall a computer attached to an RF front end that performs the usual functions of detection and transmission of radio signals. The key physical component is perhaps the analogue to digital converter that connect the front end to the computer. Processing of the digital output is carried out by CPU. This has a number of advantages:

• The need for special purpose hardware is greatly reduced

• New functions can be added to the radio by changing or adding to the software.

External links

• Flex Radio. Manufacturers of SDR for amateur use.
• SDR forum Not exclusively for amateur SDR.
• HPSDR High Performancs Software Defined Radio
• HPSDR wiki
• RF Space manufacturers of the SQR-IQ, SDR-14 and SDR-IP software defined radios.
• Wikipedia:Software defined radio

Radio apparatus
Apparatus	Keys - Morse * Kits * Radio/PC Interfaces * Receivers and transceivers * Software Defined Radio (SDR) * Vintage Radio
Manufacturers	Alinco * Elecraft * Flex Radio Systems * MFJ * Icom * Kenwood * RF-Space * Ten Tec * Yaesu
Transceivers	Alinco DX-70TH * Elecraft K1 * Elecraft K2 * Hendricks QRP Kits * Icom * Kenwood * Yaesu
Projects	Build a simple 160 metre receiver * Powering a hand held transceiver from an AC power supply
See also	Antennas