[Discuss-gnuradio] GRC now confused about source/sink sizes

2014-10-04 Thread Marcus D. Leech
[This is with latest master: 3.7.6git-57-g029079cf] If you pull simple_ra from cgran: svn co https://www.cgran.org/svn/projects/simple_ra go into simple_ra/trunk And do a "make" It will fail. If you then: PYTHONPATH=.:$PYTHONPATH export PYTHONPATH (add '.' so that it will correctly pick u

Re: [Discuss-gnuradio] TVRX2 and GRC

2014-10-04 Thread Marcus D. Leech
On Oct 3, 2014, at 7:30 PM, Marcus D. Leech wrote: If you put your flow-graph itself (.grc file) somewhere, or attach it, we can take a better look. What kind of comptuer? (OS, CPU/MEM specifics, etc). -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://w

Re: [Discuss-gnuradio] TVRX2 and GRC

2014-10-04 Thread Marcus D. Leech
On Oct 3, 2014, at 7:30 PM, Marcus D. Leech wrote: If you put your flow-graph itself (.grc file) somewhere, or attach it, we can take a better look. What kind of comptuer? (OS, CPU/MEM specifics, etc). -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://w

Re: [Discuss-gnuradio] TVRX2 and GRC

2014-10-04 Thread Daniel Marlow
On Oct 3, 2014, at 7:49 PM, Jeff Long wrote: > Dan, > > If you execute the various "sudo sysctl ..." lines shown in the warnings, > does it work any better? You can make these permanent. > > man sysctl.conf > > - Jeff > > Hi Jeff, Thanks for the suggestion.We will give that a try

Re: [Discuss-gnuradio] TVRX2 and GRC

2014-10-04 Thread Daniel Marlow
On Oct 3, 2014, at 7:30 PM, Marcus D. Leech wrote: If you put your flow-graph itself (.grc file) somewhere, or attach it, we can take a better look. What kind of comptuer?  (OS, CPU/MEM specifics, etc). -- Marcus Leech Principal Investigator Sh

Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal

2014-10-04 Thread Bastian Bloessl
Hi, On 04 Oct 2014, at 15:50, Ernest Szczepaniak wrote: > Hello, > > First of all, much love for your reply (it made my day). > > So i started with sent frame [2]. And my receiver gives some nice results: > > - found OFDM symbol > - aquired time synchronization > - Shmidl/Cox says that there

Re: [Discuss-gnuradio] BPSK Transmitter

2014-10-04 Thread Jeff Long
Abhinav, This doesn't matter for a real world problem. You could add zeros to the end of your input if you need a certain number of samples out. Please keep replies on the list. - Jeff On 10/04/2014 02:14 AM, Abhinav Jadon wrote: Jeff , If i dont use the filter , then how do i demodulate th

Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal

2014-10-04 Thread Bastian Bloessl
Hi, you can use gr-ieee802-11 [1] to generate WiFi frames. Just start the TX flow graph and pipe the output to a file. I uploaded a frame (IQ data, no noise) [2] for you that you can use to get started. I don’t use Matlab, so i don’t know how to import the data, but you can display the IQ samp