[Discuss-gnuradio] Synchronize frequency with packet sending

2009-09-27 Thread CNS Lee
Hi everyone, I got a problem in my project where I have been stuck for the past several weeks. I have searched the Gnuradio Mailing lists, I didn't find any direct answer. I’m doing the SDR project in which I use two USRPs(RFX2400) to communicate each other. I modified the benchmark example in

[Discuss-gnuradio] Re: benchmark example on USRP2

2009-08-31 Thread CNS Lee
Hi, Sorry, I made a mistake in my last email. What I'm using is GNU radio 3.2 Rev.11441. Accoding to the email from Matt, I believe I get some sort of SW problem. Can anybody give me some suggestion or even a hint? Best re On Tue, Aug 25, 2009 at 11:54 PM, CNS Leedkcns@gmail.com wrote: Hi

[Discuss-gnuradio] benchmark example on USRP2

2009-08-25 Thread CNS Lee
Hi everyone, I'm trying to establish communication between two USRP2 using benchmark example. The command ./benchmark_tx.py -f 2.4G -r 500k doesn't work: USRP2 can not correctly decode the packets received, all packets are 'false'. (PS:Same command works well on USRP1) After many times' tests,

[Discuss-gnuradio] Re: exploring the GNURadio and USRP with benchmark.py

2008-11-12 Thread CNS Lee
a warning 'Failed to enable realtime scheduling' Could anyone here tell me are there some other parameters or codes needed to be set first in the file benchmark_rx.py or some other files, in order to perform the data transmission experiment between two computers in Cygwin? Thanks a lot!

[Discuss-gnuradio] Problem in text file transmission using USRP and GNU Radio (3.1.3)

2008-11-11 Thread CNS Lee
Hi, I have got GNU Radio (3.1.3) installed on Ubuntu 8.04. The installation is followed the guide (http://gnuradio.org/trac/wiki/UbuntuInstall). It works well with USRP on two laptops after running some tests, such as ./test_usrp_standard_tx,./usrp_benchmark_usb.py, ./tunnel.py -f 2.4G,