Software Defined Radio

Software Defined Radio (SDR) is a Radio wherein the demodulation is done in software. See the Overview below for classifications and more info on current projects. The Softrock 40 is a very interesting entry point into SDR. It is a single band segment receive only unit that, in kit form, sells for about $10. Something like 5000 of them have been sold. By Tony Parks. One interesting thing people are doing with the Softrock is to set one up for the IF of a good receiver (like the R-390), and getting better performance than the receiver had before.

Overview and General

• http://f4dan.free.fr/sdr_eng.html∞ overview of SDR hardware and software projects

FlexRadio

• www.FlexRadio.com∞ SDR-1000

Softrock 40

• http://ewjt.com/kd5tfd/sdr1k-notebook/sr40/index.html∞ softrock 40 info
• Softrock Yahoo List - here is where the action is, and Tony himself

Hendricks QRP Kits

• http://www.qrpkits.com/firefly.html∞ Dan Tayloe SDR receiver w/ VXO CW transmitter kit