Re: [Discuss-gnuradio] High packet loss problem (samples dropped?) and fusb parameters

[Dan Halperin]

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Hsin-mu Tsai wrote:
> On 7/25/07, Dan Halperin <address@hidden> wrote:
> I removed all the USB devices from the computer when I was doing the
> experiment. The benchmark script said 32 MB/s throughput can be
> achieved.

Sorry I reread your original email, ... you're now using settings where
the there are no more (or very few) USRP overruns? Is that correct?

In that case it's not the overruns, it's the detector. I suspect there
is too much noise or the gain is set wrong. What reason do you have to
believe that 20% packet loss is not expected? What's the SNR?

Especially at large symbol rates (like 2MHz), there is no reason to
expect that the error performance would be 0% packet loss without
actually knowing the SNR.

- -Dan
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