Re: [Discuss-gnuradio] synchronization problems with benchmark_ofdm_tx.py and benchmark_ofdm_rx.py?

[Mike Jameson]

Hi Chris,

I have found that increasing the packet size helps, add "-s 32" and for the tx amplitude, add "--tx-amplitude=5000" to the command line for benchmark_ofdm_tx.py.

"ok:false pktno:65471 n_rcvd:1 n_rigth:0" or similar means that it thinks a packet was received but it didn't pass the crc check. the pktno when 'ok:false' should be ignored.  I get these when nothing is transmitting so it's falsely triggering somewhere.

Mike

On 7 June 2010 16:46, Chris_Spain <address@hidden> wrote:

Hello everybody,

I'm trying to check the GNU RADIO OFDM implementation but I have a problem.
When I made, for first time, the benchmark_ofdm_tx.py and
benchmark_ofdm_rx.py, everything was ok, but then, many times the RX seems
not receive nothing or it print "ok:false pktno:65471 n_rcvd:1 n_rigth:0".

I have powered off the usrps and I've restarted pc's but the problem
persist, so what is the problem? Synchronization problems between RX and TX?
I don't have idea.

Cheers, Chris.
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