
The HPSDR support is ready for testsThe HPSDR is an open source (GNU type) hardware and software project intended as a "next generation" Software Defined
Radio (SDR) for use by Radio Amateurs and Short Wave Listeners (SWLs). It is being designed and developed
by a group of SDR enthusiasts with representation from interested experimenters worldwide. In preparation for a full support in a next SDR program, I have produced a Winrad DLL to interface the Mercury card of the HPSDR project, and I am releasing it now for tests by those who own the minimal set of cards needed for it (Atlas, Ozy and Mercury). |
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Download the Winrad V1.33 installer package, complete with the HPSDR DLL and the WinUSB driver and libraries.
Alberto i2phd (at) weaksignals.com |
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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. The full Winrad source is now available The full source of Winrad is now available at the link below, both the first and the second part, with the component library and the instructions on how to compile. These instructions are in the file Winrad-How-To.pdf which is in the ZIP of the second part. I hope to not have made too many errors writing those instructions, I would have needed a clean PC on which to test the procedure, but I don't have it. Please signal any errors you may find, thanks. Download the source code of Winrad |
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Download the Winrad User Guide *updated* Look at the Log of changes Download the installer for Winrad V1.32 build 21, the latest and the last. Download the installer for the Win98 expiration-less version of Winrad V1.23 |
Download the support for the SDR-14/IQ hardware *updated* Download the support for the Perseus Direct Sampling Receiver Download the DLL to interface the new PM-SDR receiver by Martin Pernter IW3AUT Download the DLL (complete with GNU-licensed source code) to interface Winrad with the Elektor SDR receiver *updated* 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 *updated* |
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If you want, you can join the discussion group about Winrad. Just click here |
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The main Winrad screen

As an example of the filtering features, listen to these two audio samples.
In the first, a CW CQ EME is made completely inaudible by static crashes.
The second sample is the same audio file, but filtered trough the Noise Blanker feature of Winrad.
Here you can listen to the experimental despreading filter, fed with a synthetic signal (I don't have 10GHz EME capabilities).
Original signal, and here the despreaded signal.
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