Benchmark_ofdm_rx not working

Hello,

I am using two USRPs rev 4 and two RFX2400. I am basically trying to
make
the USRPs communicate with each other using the benchmark_ofdm_tx.py and
benchmark_ofdm_rx.py scripts. The commands I am executing are

./benchmark_ofdm_tx.py -f2.4e9 -T A (at one USRP connected to laptop)

./benchmark_ofdm_rx.py -f2.4e9 -R A (at the other USRP connected to
another
laptop)

The benchmark_ofdm_tx.py script is working as I can see the packet
number
displayed(I wrote a print pktno in the script)

However the benchmark_ofdm_rx.py script does not give any output. I
don’t
think the rx_callback function is being executed(as the packets are
printed
in that function).

Can anyone please help me out and give suggestions as to what the
problem
could be?

Thank you.

On 10/19/07, [email protected] <
[email protected]> wrote:

    [email protected]

Dominik A. wrote:

ofdm system.
go through.

End of Discuss-gnuradio Digest, Vol 59, Issue 52



Archana Ragothaman
Master’s in Telecommunications
Graduate Research Assistant
MIND Lab,UMIACS
University of Maryland, College Park
Email: [email protected]
Phone: 240-422-7887

Archana Ragothaman wrote:

another laptop)

Thank you.

First, try running the benchmark_ofdm_tx on one side and tht usrp_fft to
display the received power at the receiver. What does this look like?

The problem is likely that you are not transmitting enough power. There
is a --tx-amplitude flag to adjust this. Set it to 2000 - 4000.

Tom

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