Re: [Discuss-gnuradio] Help Req running benchmark

On Thu, Apr 29, 2010 at 02:40, jack william <jackwilliam01@hotmail.com> wrote:

> After successfully installing gnuradio, i  ran example benchmark_ofdm.py .
> I didnt even plug the usrp's and i got:

The benchmark_ofdm.py script is a loopback test where the transmitter
is connected to a simulated channel, then to the receiver. Thus it
runs without USRPs, and is meant to see how the OFDM code operates
under various conditions of simulated frequency/timing offset and
AWGN.

> when i ran benchmark_ofdm_tx.py it said cant find usrp.

This is the actual transmitter script. It needs a USRP to run.
You'll need to run the receiver script benchmark_ofdm_rx.py with a 2nd
USRP, either on the same or a different machine, with appropriate
antennas, etc.

Johnathan

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