[Discuss-gnuradio] gnuradio land speed record?

I'm curious what people do with the wideband capability of the gnuradio/usrp and what is the widest bandwidth signal one can really process with available computers?

For reference I have a ~2.4 GHz core 2 duo laptop. For a 200 kHz FM demodulator I consume about 40% of one cpu. That's pretty much the simplest useful thing anyone can do so that maps to my laptop might be able to process 1 MHz bandwidth continuously.

Similarly, my hard drive can't really keep up with 32 Mbyte/s recording. So if samples are 16-bit and you really can't afford lost data it seems like recording is limited to maybe 10 MHz or so bandwidth.

However, with gigabit Ethernet you can send 100 Mbyte/s or more. What's the most anyone has recorded or processed continuously? What level of compexity was the processing?

Thanks,
Clark
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