[Discuss-gnuradio] a running problem with the USRP, i am confused!

2009-05-08 Thread Bill Stevenson
Hello, I tried the DBPSK and DQPSK scheme with benchmark_tx.py and benchmark_rx.py. I found there is a problem with USRP. After having TX and RX rest for 20 mins, the communication between them are so good that the PDR detected at the RX is almost 99%, but after those two USRPs run for a while,

Re: [Discuss-gnuradio] a running problem with the USRP, i am confused!

2009-05-08 Thread Jason Uher
Does it mean USRP could not keep on running for a long time or the USRP boards we are using have been broken? I do not know the reason for this problem. Please let me know what's wrong with the USRP. Thanks a lot! I believe there is an issue with the costas loop implementation in one of the

Re: [Discuss-gnuradio] a running problem with the USRP, i am confused!

2009-05-08 Thread Bill Stevenson
...@gmail.com Subject: Re: [Discuss-gnuradio] a running problem with the USRP, i am confused! To: Bill Stevenson bill.stevenso...@yahoo.com, discuss-gnuradio@gnu.org Date: Friday, May 8, 2009, 4:35 PM Does it mean USRP could not keep on running for a long time or the USRP boards we are using have been