Winrad is a software program designed to implement a so-called Software Defined Radio (SDR), meant to run under Windows XP, Windows 2000, or Windows 98SE (only up to V1.23). In a nutshell, it accepts a chunk of up to 192 kHz coming from a half-complex mixer in form of two signals, I and Q, fed to the PC sound card. It does a fine tuning inside that segment with a point-and-click technique, demodulates (LSB/USB/CW) what has been tuned and optionally applies a series of filters to the results of the demodulation.

Note for V1.31 - The previous version 1.30 did exhibit a few hangs due to errors in programming some functions. Everything should be now fixed. Should you find that in some circumstances the program still hangs, please alert me.

Additionally, I have a report from a single beta tester that with Perseus sampling at the speed of 1 Megasample/sec on one of his PCs there are instabilities in the output buffer queue length.
I am unable to replicate that here, not even with a slow computer. So any reports will be very welcome.,

 Many thanks.
 Alberto     i2phd (at) weaksignals.com

       
by Alberto  I2PHD and Jeffrey WA6KBL

Download the Winrad User Guide

Look at the Log of changes

Download the installer for Winrad V1.31

Download the installer for the Win98 expiration-less version of Winrad V1.23

Download the support for the SDR-14/IQ hardware

Download the support for the Perseus Direct Sampling Receiver

Download the DLL (complete with GNU-licensed source code) to interface Winrad with the Elektor SDR receiver published on the May 2007 issue. TNX Gert Jan Kruizinga.

Download the document with the specs on how to write a DLL that interfaces with Winrad

If you want, you can join the discussion group about Winrad. Just click here