[Discuss-gnuradio] benchmark test between two USRPs have different performances in two directions

2012-08-03 Thread Weixian Zhou
I run benchmark_tx in USRP A, and benchmark_rx in USRP B: A: ./benchmark_tx.py -f 2.46G -r 0.5M --tx-gain=-30 B: ./benchmark_rx.py -f 2.46G -r 0.5M The n_right/n_recvd is 549/628. But when I rx in USRP A and tx in USRP B with the same parameters, the n_right/n_recvd is always pretty bad: 0/275. Wha

Re: [Discuss-gnuradio] benchmark test between two USRPs have different performances in two directions

2012-08-04 Thread Josh Blum
On 08/03/2012 03:45 PM, Weixian Zhou wrote: > I run benchmark_tx in USRP A, and benchmark_rx in USRP B: > A: ./benchmark_tx.py -f 2.46G -r 0.5M --tx-gain=-30 > B: ./benchmark_rx.py -f 2.46G -r 0.5M > The n_right/n_recvd is 549/628. > But when I rx in USRP A and tx in USRP B with the same paramete

Re: [Discuss-gnuradio] benchmark test between two USRPs have different performances in two directions

2012-08-08 Thread Weixian Zhou
Hi Josh, The tone test works. And I have tried to use different antennas. The following is the result: https://docs.google.com/spreadsheet/ccc?key=0AiMWTi1wVxJedDBKNEdhaUFNSkNfdTJ6LUtjenZkTWc&pli=1#gid=1 The results are very different even with same antennas. The n_rcvd/n_right is 626/623, and 289

Re: [Discuss-gnuradio] benchmark test between two USRPs have different performances in two directions

2012-08-08 Thread Josh Blum
On 08/08/2012 10:31 AM, Weixian Zhou wrote: > Hi Josh, > The tone test works. And I have tried to use different antennas. The > following is the result: > https://docs.google.com/spreadsheet/ccc?key=0AiMWTi1wVxJedDBKNEdhaUFNSkNfdTJ6LUtjenZkTWc&pli=1#gid=1 > > The results are very different even