Re: [Discuss-gnuradio] Regarding installation of GNURADIO on Ubuntu 11.10

Hi, I also had this problem before. The reason was simply that cmake was not installed. You may check that. Wu From: discuss-gnuradio-bounces+wu.ting=comf5.comm.eng.osaka-u.ac...@gnu.org [mailto:discuss-gnuradio-bounces+wu.ting=comf5.comm.eng.osaka-u.ac...@gnu.or g] On Behalf Of Ellen A

Re: [Discuss-gnuradio] Strange problem when using build-gnuradio script

Hi! Now it works! Thank you so much! Wu From: Marcus D. Leech [mailto:mle...@ripnet.com] Sent: Wednesday, March 28, 2012 6:07 AM To: Wu Ting Cc: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] Strange problem when using build-gnuradio script On 03/27/2012 08:44 AM, Wu Ting

[Discuss-gnuradio] Strange problem when using build-gnuradio script

Hi all, I'm using build-gnuradio script to build gnuradio and uhd. It works well before (both on Ubuntu 10.04 and 11.10). However, on my current computer (Ubuntu 10.04), it has a strange problem. At first, it kept showing some libs are not found. After installing these libs and trying for sever

Re: [Discuss-gnuradio] Strange output of "0" at the terminal

t's >> the hard drive. You should > try the program without the write. Then if >> it is the problem you > should write out to a file on a ram disk then >> save it to a real disk > later. >> >> 2012/2/24 Wu Ting : >>> Hi! Thank you for your sugges

Re: [Discuss-gnuradio] Strange output of "0" at the terminal

is the problem you should write out to a file on a ram disk then > save it to a real disk later. > > 2012/2/24 Wu Ting : >> Hi! Thank you for your suggestions! >> >> I realized it is a problem related with computer speed. Today I used a >> laptop to run the sam

Re: [Discuss-gnuradio] Strange output of "0" at the terminal

y it has this outflow problem. And is it possible to catch this error when it happens, so that I can deal with it in the problem? Thanks! Wu > 2012/2/23 Wu Ting > >> Hi! Thank you for your response. I've kept working on this problem for >> two >> days, but still c

Re: [Discuss-gnuradio] Strange output of "0" at the terminal

or at least catch this error when it happens? Any suggestions will be greatly appreciated. Wu -Original Message- From: Andrew Davis [mailto:glneolistm...@gmail.com] Sent: 2012年2月23日 0:15 To: Wu Ting; discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] Strange output of "0&qu

Re: [Discuss-gnuradio] Strange output of "0" at the terminal

.comm.eng.osaka-u.ac...@gnu.or g] On Behalf Of Wu Ting Sent: 2012年2月22日 14:48 To: discuss-gnuradio@gnu.org Subject: [Discuss-gnuradio] Strange output of "0" at the terminal Hi all, I’m now using message_sink and msg_queue to receive data from USRP. I do some calculation for all the d

[Discuss-gnuradio] Strange output of "0" at the terminal

Hi all, I'm now using message_sink and msg_queue to receive data from USRP. I do some calculation for all the data in the msg_queue one by one and write some of them into a file. Everything seems to be working smoothly. But once in a while, a "0" is printed in the terminal. (There is no code to

[Discuss-gnuradio] Problems when using GPSDO

Hi all, I have two questions for using GPSDO. First, I'm now using usrp_source.get_time_now().get_frac_secs() to get a time value like this: 0.53928493 My question is how accurate is this value. I don't know much about GPS, so I hope my question is not so stupid: is this value a

Re: [Discuss-gnuradio] How to get time from GPSDO

Hi, Sean and Josh, Thank you so much for your help. My problem is solved now. Thanks again. Wu From: Nowlan, Sean [mailto:sean.now...@gtri.gatech.edu] Sent: 2012年2月18日 1:00 To: Wu Ting; discuss-gnuradio@gnu.org Subject: RE: [Discuss-gnuradio] How to get time from GPSDO Use the

[Discuss-gnuradio] How to get time from GPSDO

Hi all, I know this is a very basic problem. But I have looked for a lot of information and discussions and still cannot figure out how to do. In my current GNURadio application, I want to get the time produced by GPSDO. I found this page

Re: [Discuss-gnuradio] About the use of gr.probe_signal_f()

Hi Tom, Thank you for your information. Reading examples are currently a major way for me to learn GR. I will try to read and run the QA code as you introduced. Wu From: trond...@trondeau.com [mailto:trond...@trondeau.com] On Behalf Of Tom Rondeau Sent: 2012年2月16日 12:21 To: Wu Ting

[Discuss-gnuradio] Strange result when using message_sink and msg.queue

Hi all, I'm now trying to use message_sink and msg_queue to receive data from USRP. And I'm having a problem that I cannot figure out. Please tell me where I am wrong. top block: self.source = uhd.usrp_source(device_addr="", stream_args=uhd.stream_args('fc32', 'sc16', args="scalar=1

Re: [Discuss-gnuradio] About the use of gr.probe_signal_f()

Thanks. This site is helpful. It would be really great if it has some examples for each function. Wu From: Andrew Davis [mailto:glneolistm...@gmail.com] Sent: 2012年2月15日 14:29 To: Wu Ting; discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] About the use of gr.probe_signal_f

Re: [Discuss-gnuradio] About the use of gr.probe_signal_f()

. Wu From: trond...@trondeau.com [mailto:trond...@trondeau.com] On Behalf Of Tom Rondeau Sent: 2012年2月15日 0:01 To: Wu Ting Cc: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] About the use of gr.probe_signal_f() On Tue, Feb 14, 2012 at 4:00 AM, Wu Ting wrote: Hi all, I’m

[Discuss-gnuradio] About the use of gr.probe_signal_f()

Hi all, I'm trying to read the real-time value of a stream from USRP. I'm considering using gr.probe_signal_f, but it seems to not work. I'm really new to GNURadio, so please forgive me if I ask some stupid question. My method is like this: #First generate a source from USRP: self.sour

[Discuss-gnuradio] About signal triggering

Hi all, I'm now using USRP N200 with LFRX daughterboard. I'm trying to detect radio signals produced by lightning discharges. When lightning does not occur, the system just detect the signal but does not record data. When lightning happens, it triggers the system and the system starts to w