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DVB-T sticks based on the Realtek RTL2832U can be used as a cheap SDR, since the chip allows transferring the raw I/Q samples to the host, which is officially used for DAB/DAB+/FM demodulation.

The RTL2832U outputs 8-bit I/Q samples, and the highest theoretically possible sample-rate is 3.2 MS/s, however, the highest sample-rate without lost samples that has been tested so far is 2.8 MS/s.

So far, the following devices are supported:

• ezcap USB 2.0 DVB-T/DAB/FM stick (Elonics E4000 tuner)
• Terratec NOXON DAB/DAB+ USB-Stick (Fitipower FC0013 tuner)