[Discuss-gnuradio] Channel Response in OFDM with MIMO USRP

2013-01-12 Thread Unforgiven11 dreams
Hello - I've created a MIMO setup connecting 2 USRPs using an external clock reference (10MHz) and 1-PPS input. However, when I transmit packets between them, I see a phase rotation experienced by the subcarriers. I've attached an image highlighting the same. The x-axis is the subcarrier index (80

Re: [Discuss-gnuradio] failed build in new version of gnuradio 3.6.3

2013-01-12 Thread Josh Blum
>> ___ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > It's likely that the version of libusb on your old 10.04 machine simply > doesn't have that particular API element > in it.

Re: [Discuss-gnuradio] Stream_Selector (grextras) on Windows

2013-01-12 Thread Josh Blum
On 01/09/2013 06:39 PM, Luong Tan Phong wrote: > My receiver object inherit from gr_hier_block2, and the sourcecode: > > connect(self(), 0, iq_resamp, 0); > connect(iq_resamp, 0, nb, 0); > connect(nb, 0, filter, 0); > connect(filter, 0, sql, 0); > connect(sql, 0, agc, 0); > connect(agc, 0, demod

Re: [Discuss-gnuradio] failed build in new version of gnuradio 3.6.3

2013-01-12 Thread Marcus D. Leech
On 12/01/13 09:07 PM, Bill Peter wrote: > > Hi, > > I tested out the new release 3.6.3 on an old IBM thinkpad laptop (and > I mean old--about ten years old) running Ubuntu 10.04. I did this > before testing it out on the laptop I have the old version running > fine (a Dell Latitude running Ubuntu 1

[Discuss-gnuradio] failed build in new version of gnuradio 3.6.3

2013-01-12 Thread Bill Peter
Hi, I tested out the new release 3.6.3 on an old IBM thinkpad laptop (and I mean old--about ten years old) running Ubuntu 10.04. I did this before testing it out on the laptop I have the old version running fine (a Dell Latitude running Ubuntu 12.04). Anyway, I used the build script on the old IB

Re: [Discuss-gnuradio] Not able to view two scopes at the same time

2013-01-12 Thread Josh Blum
On 01/11/2013 07:09 AM, Ghulam Rasool Begh wrote: > Hi all, I have a 15" monitor. When I use two scopes or one scope and > one FFT block in gnuradio companion, I am not able to visualize the > lower scope on GUI window. Is this problem with the monitor or I have > to change some settings. > The

Re: [Discuss-gnuradio] GNU Radio release 3.6.3 available for download

2013-01-12 Thread Alexandru Csete
On Sat, Jan 12, 2013 at 8:19 PM, Michael L Kornegay wrote: > Alex, > > You said: > > Thanks for the tip - I will try to rebuild using gcc later and see > what difference it makes. For now I am happy that after installing > gnuradio, I could install the rtl-sdr and gr-osmosdr packages, and > since

Re: [Discuss-gnuradio] GNU Radio release 3.6.3 available for download

2013-01-12 Thread Michael L Kornegay
Alex, You said: > Thanks for the tip - I will try to rebuild using gcc later and see > what difference it makes. For now I am happy that after installing > gnuradio, I could install the rtl-sdr and gr-osmosdr packages, and > since I already had Qt 4.8 installed I could also build gqrx without >