Help Req running benchmark

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

^Cok: True pktno: 11 n_rcvd: 12 n_right: 12
0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b
0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b
0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b
0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b
how did it run.
when i ran benchmark_ofdm_tx.py it said cant find usrp.
Please explain this.
Secondly, i made out that in example benchmark_ofdm.py we have a siso
ofdm transceiver.
I want to test this example using usrp’s what should i do?
Cheers.

On Thu, Apr 29, 2010 at 02:40, jack william [email protected]
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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