Real cheap Software Defined Radios?

It seems someone worked out that the Realtek RTL2832U found in various very cheap USB DVB-T decoders can be repurposed as a complete software-defined radio. The sidebar of this subreddit seems to be the best place to start.

Update: This is the Ezcap EZTV645 from Deal Extreme:

[175189.929963] usb 1-1.1: new high-speed USB device number 7 using ehci_hcd
[175190.028379] usb 1-1.1: New USB device found, idVendor=0bda, idProduct=2838
[175190.028385] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[175190.028389] usb 1-1.1: Product: RTL2838UHIDIR
[175190.028392] usb 1-1.1: Manufacturer: Realtek
Bus 001 Device 007: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T


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3 responses to “Real cheap Software Defined Radios?

  1. I found it more productive just go to Osmocom’s site and Gnuradio’s site directly. The compendum of personal sites was basically useless. And Reddit was even worse than useless: misleading and just makes people wasting time while trying to distinguish information from disinformation.

    • rich

      Thanks Pete. Did you get anything working?

      • zaitcev

        Basic things like FM radio work fine, but getting UAT weather turned out to be challenging: the bandwidth is too great for the sample rate that RTL chipset can deliver. Still tinkering with it, but about ready to buy a real SDR.

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