Software defined radio from a USB TV capture card. With a simple digital TV USB capture card, you can build your own software defined radio or spectrum analyzer. While it may not be as cool as Jeri Ellsworths SDR, its still very useful and only requires 2. The only piece of hardware required for this build is a USB FMDTV capture device with the Realtek RTL2. U chipset. So far, two USB sticks have been tested and the unit with the largest frequency range 6. MHz is available direct from China for 2. Turning these cheap capture cards into software defined radios and spectrum analyzers was discovered by Antti Palosaari after sniffing the device. These cards demodulate the frequency and send all the data to the computer and is decoded via software. If you have one of these capture cards lying around, you can grab the software and load it up on your nix box. Right now, the software only writes directly to a file, and may drop a few samples if writing to a hard disk instead of ram. Small problems, but were sure this project will pick up steam in the very near future. I/51b80O3tviL.jpg' alt='Enter Usb Tv Tuner Card Driver' title='Enter Usb Tv Tuner Card Driver' />Find great deals on eBay for USB TV Tuner in Computer Video Capture and TV Tuner Cards. Lancelot Film Telecharger there. Shop with confidence. Buy AVerMedia Live Gamer HD 2 Full HD 1080p 60 Record and Stream MultiCard Support LowLatency PassThrough RealTime Gameplay PCIe Ryzen Support GC570. Minecraft By Zyczu 1.7.4'>Minecraft By Zyczu 1.7.4. Va Big Room there. With a simple digital TV USB capture card, you can build your own software defined radio or spectrum analyzer. While it may not be as cool as Jeri.