[Discuss-gnuradio] Arbitrary resampler question on gnuradio 3.7.2.1

2013-12-17 Thread George
ote that if the conversions float2complex and complex2float miss everything works. Any ideas why? Thanks, -George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Arbitrary resampler question on gnuradio 3.7.2.1

2013-12-18 Thread George
/nfilts, rolloff, int(11*spb*nfilts)) where nfilts=32, rolloff=0.35 and spb =4 Thanks, -George On Dec 18, 2013, at 5:54 PM, Tom Rondeau wrote: > On Tue, Dec 17, 2013 at 9:06 PM, George wrote: >> Hello all, >> >> Considering a simple gnuradio flowgraph as the following

Re: [Discuss-gnuradio] Arbitrary resampler question on gnuradio 3.7.2.1

2013-12-18 Thread George
Tom, Is there going to be a fix soon or should I go with the 3.6.5 version of gnuradio? Thanks, -George On Dec 18, 2013, at 7:01 PM, George wrote: > Hi Tom, > > You are right increasing the number of taps by 100 is not the case, after I > debugged the results a bit more. &

Re: [Discuss-gnuradio] Arbitrary resampler question on gnuradio 3.7.2.1

2013-12-19 Thread George
Thanks, got it! -George On Dec 19, 2013, at 9:21 AM, Tom Rondeau wrote: > On Wed, Dec 18, 2013 at 7:47 PM, George wrote: >> Tom, >> >> Is there going to be a fix soon or should I go with the 3.6.5 version of >> gnuradio? >> >> Thanks, >> -Georg

Re: [Discuss-gnuradio] IQ changing with restart

2014-02-11 Thread George
Is it an over-the-air transmission or TX and RX are connected with a wire and attenuators? -George - George Sklivanitis PhD Student and Research Assistant Signals, Communications, and Networking Research Group Department of Electrical Engineering University at Buffalo, The State University of

Re: [Discuss-gnuradio] Problem with undefined symbol in new block created by gr_modtool in 3.7.2

2014-03-05 Thread George
solved by just ignoring the implementation header file and only include the public header file in the /include/nameofBlock . Thanks, -George - George Sklivanitis On Mar 5, 2014, at 4:49 PM, Nowlan, Sean wrote: > Ah, nevermind about the wiki edit. The use of pure virtual functions is > a

[Discuss-gnuradio] Import Out of Tree module in another Out of Tree module

2015-09-01 Thread George Vardakis
Good evening, i am trying to import an out of tree module (module_A) inside another out of tree module (module_B) in order to be able to include header files from one to another.How can that be achieved ,and what changes would that require to the CMakeLists files of module_B? Thank you in advance

[Discuss-gnuradio] Signal distorted when using concurrently two USRP B210 devices

2017-06-12 Thread George Vardakis
Hello all, I have two USRP B210 devices which i use in my MIMO application. When i use the two of them concurrently in a flowgraph - or different flowgraphs - i notice that the signal received by the streams of one of the devices (the one whose serial number is last in lexicographical order) is di

Re: [Discuss-gnuradio] Signal distorted when using concurrently two USRP B210 devices

2017-06-13 Thread George Vardakis
: > On 06/12/2017 03:53 PM, George Vardakis wrote: > > Hello all, > > I have two USRP B210 devices which i use in my MIMO application. When i > use the two of them concurrently in a flowgraph - or different flowgraphs - > i notice that the signal received by the streams of one

Re: [Discuss-gnuradio] Signal distorted when using concurrently two USRP B210 devices

2017-06-14 Thread George Vardakis
the problematic with two different USRPs and the second the expected signal transmitting and receiving using the same USRP. On 06/13/2017 05:30 PM, mle...@ripnet.com wrote: Thanks, George. Two things: Could you try updating to the most recent UHD version? It would be helpful if you provided your .d

Re: [Discuss-gnuradio] Signal distorted when using concurrently two USRP B210 devices

2017-06-14 Thread George Vardakis
n the same usrp transmits and receives. This calls for some clock recovery function. Thank you very much for your time Marcus Στις 14 Ιουν 2017 10:55 π.μ., ο χρήστης "George Vardakis" < vardakis@gmail.com> έγραψε: Στις 13 Ιουν 2017 10:22 μ.μ., ο χρήστης έγραψε: In the two-USRP

[Discuss-gnuradio] Clock recovery without change of phase

2017-06-14 Thread George Vardakis
Hi all, I need to perform clock recovery on a signal without constantly changing its phase. I think that the clock recovery block in Gnuradio does exactly that in order to maximize the energy of the signal. Is there any other way that does not tamper with the signal phase? Thanks! ___

Re: [Discuss-gnuradio] Looking for simple ra

2014-10-21 Thread George Nychis
Hi Will, The subversion server is still up and your relevant code is at https://www.cgran.org/svn/projects/simple_ra Archive.org has a nice cache of CGRAN also: https://web.archive.org/web/20140702091149/https://cgran.org/wiki/simple_ra - George On Mon, Oct 20, 2014 at 6:20 PM, Will Caruana

Re: [Discuss-gnuradio] Inquiry about USRP GNU Radio

2014-10-28 Thread George Nychis
If there was a MIMO project on CGRAN you can find it archived still: https://web.archive.org/web/20140822005337/https://www.cgran.org/ I need to just link to this on the explanation... On Oct 28, 2014 9:19 PM, "이재훈" wrote: > Dear > > > > > > Hi, my name is jaehoon Lee and a graduate student at S

Re: [Discuss-gnuradio] RuntimeError: b200: 2 RX 1 TX and 1 RX 2 TX configurations not possible

2014-11-17 Thread George Sklivanitis
Hi all, I think what Lefteris tries to implement is a 2x2 loopback with a USRP-B210. At least this is what I can see from the flowgraph attached in the first email. Is that possible with B210? Best, George On Mon, Nov 17, 2014 at 5:47 PM, Ben Hilburn wrote: > Hi Lefteris - > > We

[Discuss-gnuradio] A few questions regarding QT GUI development

2015-03-24 Thread George Hadley
lity are being abandoned for good reason; if that's the case, if anybody could clarify that for me or point me in the right direction I would be most appreciative.) Thanks everyone, and I look forward to hearing from you! --George

[Discuss-gnuradio] A few questions regarding QT GUI development

2015-03-24 Thread George Hadley
lity are being abandoned for good reason; if that's the case, if anybody could clarify that for me or point me in the right direction I would be most appreciative.) Thanks everyone, and I look forward to hearing from you! --George

Re: [Discuss-gnuradio] A few questions regarding QT GUI development

2015-03-24 Thread George Hadley
much for yours! --George On 3/24/2015 12:54 PM, Tom Rondeau wrote: On Tue, Mar 24, 2015 at 9:01 AM, George Hadley <mailto:ghad...@purdue.edu>> wrote: Greetings all, I recently began using gnuradio and GRC with a pair of USRPs. It's my understanding that pla

[Discuss-gnuradio] [UHD] Cause of sequence errors (SSSSS...) when using USRP N210 as transmitter?

2015-07-09 Thread George Hadley
I am getting this error. I have tried installing the latest images to the USRPs and updating to the latest version of gnuradio available on the github master branch. Can somebody please point me to what I'm doing wrong? I've searched around on the topic for quite awhile, to no avail.

Re: [Discuss-gnuradio] [UHD] Cause of sequence errors (SSSSS...) when using USRP N210 as transmitter?

2015-07-09 Thread George Hadley
) Network settings: + Adapter enabled and attached to NAT + No port forwarding settings defined It may be noteworthy that the receive operation of the USRPs works as expected. Only transmit doesn't appear to be working properly. Thanks, George On 7/9/2015 9:

Re: [Discuss-gnuradio] [UHD] Cause of sequence errors (SSSSS...) when using USRP N210 as transmitter?

2015-07-09 Thread George Hadley
Mask: 255.255.255.0 (No DNS Server Addresses specified) Thank you for your continued assistance, George On 7/9/2015 9:29 AM, mle...@ripnet.com wrote: See the windows-specific notes here: http://files.ettus.com/manual/page_transport.html#transport_udp_params Does setting the FastDatagramTheshold help

Re: [Discuss-gnuradio] [UHD] Cause of sequence errors (SSSSS...) when using USRP N210 as transmitter?

2015-07-09 Thread George Hadley
40EM) is listed. Thank you for crossposting and your continued assistance. George On 7/9/2015 10:19 AM, mle...@ripnet.com wrote: What version of UHD are you using? Any idea what ethernet controller is used on that dual-port card? You'd have to go into windows configuration to determine

[Discuss-gnuradio] Pass boolean parameter to gnuradio script from command line

2017-07-18 Thread George Vardakis
Hi all! I need to give the user the option to pass a boolean parameter when executing my script from command line, something like '--split-image=True', where split_image is a parameter of a block. What is the way to do that from gnuradio without needing to translate inside my code the 'True' strin

Re: [Discuss-gnuradio] Pass boolean parameter to gnuradio script from command line

2017-07-18 Thread George Vardakis
Thank you Marcus I'll give it a try :) Στις 18 Ιουλ 2017 12:05 μ.μ., ο χρήστης "Marcus Müller" έγραψε: > Hi George, > > you could go into gnuradio/grc/blocks, change parameter.xml to have > > > Boo

Re: [Discuss-gnuradio] Couldn't find the block named "Source"

2017-07-24 Thread George Vardakis
Hi there! You should also download the gr-osmosdr module which will then provide you with the osmocom source block which you will use with your rtl device You can find more instructions here https://osmocom.org/ projects/sdr/wiki/rtl-sdr Στις 24 Ιουλ 2017 20:32, ο χρήστης "Nipun Pruthi" έγραψε:

[Discuss-gnuradio] Rotating constellations and varying LOs with USRP B210 + Board Mounted GPSDO

2017-08-30 Thread George Sklivanitis
GPS lock, although clock reference leds in the USRP panel are ON. Thanks, George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Rotating constellations and varying LOs with USRP B210 + Board Mounted GPSDO

2017-09-11 Thread George Sklivanitis
rence locks but constellations keep rotating. Should we address the residual CFO or is there something wrong with the hardware? Thanks, George On Mon, Sep 11, 2017 at 7:32 AM, Nicolas Cuervo wrote: > Hello George, > > this question would be better posted in the USRP-usrs list. However, t

[Discuss-gnuradio] Fwd: Random test failures when compiling GNURadio from source

2017-10-30 Thread Kevin George
Hello, We have been trying to compile and run GNURadio from source and the make tests have been failing randomly. *Machine Details* *Intel NUC (x86-64 machine)* *Ubuntu 16.04.03* *GNU Radio version 3.7.11* *gcc version 5.4.0 20160609 * *Commands used* *git clone --recursive https://github.com/g

[Discuss-gnuradio] ImportError: cannot import name QObject

2018-08-21 Thread George Rykowski
This issue started Thursday (8/16/2018) after I performed software updates via macports. While running gnuradio-companion, I run my code (which was running fine for weeks) and now get this error: Generating: '/Users/georgerykowski/Documents/GNUradio/TCM_with_ENG_2MS.py' Executing: /opt/l

Re: [Discuss-gnuradio] ImportError: cannot import name QObject

2018-08-21 Thread George Rykowski
Hi Adrian, I am using a MacBook Pro and assume am running the ‘standard’ Apple version of Python (version 2.7.10). George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] ImportError: cannot import name QObject

2018-08-21 Thread George Rykowski
Michael, Thank you! George From: Michael Dickens Date: Tuesday, August 21, 2018 at 12:08 PM To: George Rykowski , Subject: Re: [Discuss-gnuradio] ImportError: cannot import name QObject Hi George - Yes this is a known issue that I'm working on; see also <

[Discuss-gnuradio] uhd::usb_error: RuntimeError: USBError -9: usb tx2 submit failed: LIBUSB_ERROR_PIPE

2018-08-27 Thread George Rykowski
I have been seeing this error regularly for a couple weeks. As I am running my code, the error stops execution, on average, approximately every 10 minutes (though, once or twice, I have received the error quickly in sequence). My code is simple: I am reading in a recorded waveform (using File So

Re: [Discuss-gnuradio] uhd::usb_error: RuntimeError: USBError -9: usb tx2 submit failed: LIBUSB_ERROR_PIPE

2018-08-28 Thread George Rykowski
/product/MJ1K2AM/A/usb-c-digital-av-multiport-adapter From: Michael Dickens Date: Monday, August 27, 2018 at 3:15 PM To: George Rykowski , Subject: Re: [Discuss-gnuradio] uhd::usb_error: RuntimeError: USBError -9: usb tx2 submit failed: LIBUSB_ERROR_PIPE Hi George - I haven't seen

[Discuss-gnuradio] Can I use PyBOMBS with a macport installed GNU Radio?

2019-03-12 Thread George Rykowski
Hello, I have a need to install the FMComms2/3/4 source block in order to access my Zedboard/AD9361 SDR from my Macbook Pro. I see the gr-iio package on CGRAN. Can I install PyBOMBS, then install gr-iio, into my GNU radio that was built using macports? TIA, George

Re: [Discuss-gnuradio] Can I use PyBOMBS with a macport installed GNU Radio?

2019-03-12 Thread George Rykowski
Michael, Thank you. Everything works as expected! George From: Discuss-gnuradio on behalf of Michael Dickens Date: Tuesday, March 12, 2019 at 2:06 PM To: GNURadio Discussion List Subject: Re: [Discuss-gnuradio] Can I use PyBOMBS with a macport installed GNU Radio? gr-iio is in

Re: [Discuss-gnuradio] followup: libgnuradio-fcd-3.7.3git.so.0.0.0: undefined reference to `libusb_handle_events_completed'

2014-01-08 Thread George Refseth
oblem with libfaad2, fix recipe, and fix the cmake file that set up where to look for both header files and library. That was your solution also? Btw. I was working with gr-drm in a pybombs environment. regards George I offer the following message as 'documentation' of the claim th

Re: [Discuss-gnuradio] followup: libgnuradio-fcd-3.7.3git.so.0.0.0: undefined reference to `libusb_handle_events_completed'

2014-01-08 Thread George Refseth
cmake file that set up where to look for both header files and library. That was your solution also? regards George make[2]: *** No rule to make target `/usr/lib/x86_64-linux-gnu/libusb-1.0.so', needed by `gr-fcd/lib/libgnuradio-fcd-3.7.3git.so.0.0.0'. Stop. After I fixed t

Re: [Discuss-gnuradio] followup: libgnuradio-fcd-3.7.3git.so.0.0.0: undefined reference to `libusb_handle_events_completed'

2014-01-08 Thread George Refseth
On 01/08/2014 06:17 PM, ikjtel wrote: On Jan. 8, 2013, George wrote: > Same problem with libfaad2, fix recipe, and fix the cmake file that > set up where to look for both header files and library. > That was your solution also? Hate to admit, was in a hurry so I just nuked the syste

[Discuss-gnuradio] Problem with undefined symbol in new block created by gr_modtool in 3.7.2

2014-03-05 Thread George Sklivanitis
/wiki/OutOfTreeModulesConfig for correctly configuring it but the problem still holds. Any ideas? Thanks, -George -- Sklivanitis Georgios ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] embedding

2014-04-04 Thread George Refseth
the transfer of design from modelling to run-time, and that becomes a one-way road and only done once so that one looses the value of the model be it gnu-radio or math-lab based. best regards, George Refseth ___ Discuss-gnuradio mailing list Discuss

[Discuss-gnuradio] CGRAN down, working on it

2014-05-03 Thread George Nychis
It looks like CGRAN is down for some reason. The machine that hosts it is still up and I haven't found the cause of the problem yet. Still digging. - George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/ma

Re: [Discuss-gnuradio] CGRAN down, working on it

2014-05-03 Thread George Nychis
Something must have been upgraded on the machine, and a significant number of the dependencies needed to run Trac have disappeared. For example, python has disappeared from the machine :P This might take a while, sorry. On Sat, May 3, 2014 at 1:15 PM, George Nychis wrote: > It looks l

Re: [Discuss-gnuradio] CGRAN down, working on it

2014-05-13 Thread George Nychis
3, 2014 at 1:58 PM, George Nychis wrote: > Something must have been upgraded on the machine, and a significant number > of the dependencies needed to run Trac have disappeared. For example, > python has disappeared from the machine :P > > This might take a while, sorry. > >

[Discuss-gnuradio] CGRAN down indefinitely, but hopefully not for long (want feedback)

2014-09-29 Thread George Nychis
Do people still like it is a standalone service, or is it better to just "roll it in" to the GNU Radio webpage somewhere now? I want to do whatever the community finds is most useful. Thanks! George ___ Discuss-gnuradio mailing list Discuss-gnurad

Re: [Discuss-gnuradio] CGRAN down indefinitely, but hopefully not for long (want feedback)

2014-09-29 Thread George Nychis
ess it sooner rather than later. > > George, if the support burden is getting to much, we can surely fix a > short-term solution by migrating stuff to some temporary location (let's > take this specific discussion offline, though). > > In the future, we'd like to have some

Re: [Discuss-gnuradio] CGRAN down indefinitely, but hopefully not for long (want feedback)

2014-09-29 Thread George Nychis
nd to be more supportive of newer projects. The clear example has always been making it more git-centric. On Mon, Sep 29, 2014 at 2:37 PM, Marcus D. Leech wrote: > On 09/29/2014 05:31 PM, George Nychis wrote: > > Thanks for the feedback, Chris and Martin. What I'm going to do i

Re: [Discuss-gnuradio] CGRAN down indefinitely, but hopefully not for long (want feedback)

2014-09-29 Thread George Nychis
I agree with Martin that once we go to git, every project has its own independent repo. That shouldn't take much time at all to do, I can just run some svn2git magic to spit out separate repositories. The question will be where those repositories live. I can host the repositories again. I could

Re: [Discuss-gnuradio] CGRAN down indefinitely, but hopefully not for long (want feedback)

2014-10-02 Thread George Nychis
must be different than a tag, since you say tags are part of a snapshot. Can you give me an example snapshot provided by some other service? On Thu, Oct 2, 2014 at 7:51 AM, Marcus Müller wrote: > Hi everyone, > > that seems to be a nice solution you're proposing, George. What ab

Re: [Discuss-gnuradio] CGRAN down indefinitely, but hopefully not for long (want feedback)

2014-10-06 Thread George Nychis
Let me add one more thing about CGRAN while we are still trying to narrow down how to handle this. One reason I put CGRAN in place was to host code that might "disappear." For example, students post it on university webpages and when they graduate, that hosting gets taken down. Additionally, some

Re: [Discuss-gnuradio] CGRAN down indefinitely, but hopefully not for long (want feedback)

2014-10-06 Thread George Nychis
in at the last published version. > > > On Mon, Oct 6, 2014 at 10:22 AM, George Nychis wrote: > >> Let me add one more thing about CGRAN while we are still trying to narrow >> down how to handle this. One reason I put CGRAN in place was to host code >> that might "d

[Discuss-gnuradio] how to learn of decimation rate in general_work() ?

2012-01-19 Thread George Nychis
I am using stream tags to get the timestamp of its corresponding sample in general_work(). Now, if I want to calculate the time of an arbitrary sample in the incoming sample stream I need to know the decimation rate. This tells me how much clock time is added per-sample. So I can calculate the o

[Discuss-gnuradio] not getting timestamps from UHD received stream tags

2012-02-06 Thread George Nychis
pktno: 639 n_rcvd: 20 n_right: 19 got a preamble, size of time_tags: 0 ... Is there something I am missing to enable the RX timestamp on the incoming samples, or am I not properly reading the stream tag? My branch came from the GR master 4 days ago (309ca769af). Thanks a b

Re: [Discuss-gnuradio] not getting timestamps from UHD received stream tags

2012-02-06 Thread George Nychis
Bingo, didn't realize they were only incoming at those points in time. Problem solved, thanks Josh! On Mon, Feb 6, 2012 at 9:18 PM, Josh Blum wrote: > > > On 02/06/2012 06:13 PM, George Nychis wrote: > > I am trying to read incoming RX timestamps from the UHD sample stream

Re: [Discuss-gnuradio] how to learn of decimation rate in general_work() ?

2012-02-07 Thread George Nychis
> > > Hey George, > > You can use the relative_rate data member of the blocks. Setting the > decimation actually sets the relative_rate to 1.0/decimation. You can get > this value with the accessor function "relative_rate()". > > Hey Tom, Using this I can ge

Re: [Discuss-gnuradio] how to learn of decimation rate in general_work() ?

2012-02-09 Thread George Nychis
at 4:12 PM, Tom Rondeau wrote: > > On Tue, Feb 7, 2012 at 5:37 PM, George Nychis wrote: > >> >>> Hey George, >>> >>> You can use the relative_rate data member of the blocks. Setting the >>> decimation actually sets the relative_rate to 1.0/decimation. Yo

Re: [Discuss-gnuradio] "GNU Radio is crap" and GSoc

2012-02-15 Thread George Nychis
A bit late on this conversation... I just noticed it after I posted an update for CGRAN. GNU Radio has been largely successful in the academic community, because it provides us the flexibility to perform the style of research we need. Ultimately though, the limitations of the framework that were

[Discuss-gnuradio] CGRAN wants your GNU Radio projects!

2012-02-15 Thread George Nychis
community if you want it, just link to your github. - George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Reminder about call today

2012-02-16 Thread George Nychis
Hey all, I actually really want to join the call, because I have a GSoC idea, but I have a conflict with teaching assistant duties during that time. So I thought I'd briefly share, and if it does become of interest then maybe someone can get ahold of me and I could try to mentor or something. I

Re: [Discuss-gnuradio] Reminder about call today

2012-02-16 Thread George Nychis
to get communication through to power line with those channels. Even measurement on what those channels are like would be interesting, and I know whatever might come out of this would really open up the ability for the academic community to directly research power line networks. Thanks, Tom! - George ___

Re: [Discuss-gnuradio] Reminder about call today

2012-02-19 Thread George Nychis
:) > > It would be really cool to be able to hook up the USRP to a PL and understand various channels in different types of buildings. Totally not conducive to my dissertation, but I find it interesting. - George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Power line communications

2012-02-21 Thread George Nychis
On Mon, Feb 20, 2012 at 6:32 PM, Johnathan Corgan < jcor...@corganenterprises.com> wrote: > On Mon, Feb 20, 2012 at 07:32, Johnathan Corgan > wrote: > > >> If you ever do this again, I would love to see some of the channels over > >> time. I ordered some basic PLC equipment, but all I really hav

[Discuss-gnuradio] discussion on USRP-->Wall Socket for Power Line Comms

2012-02-21 Thread George Nychis
telephone extenders from Radio Shack and dissecting them. Ideally, I think we could connect whatever it is to a basic TX/RX. Any thoughts here? - George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listin

Re: [Discuss-gnuradio] discussion on USRP-->Wall Socket for Power Line Comms

2012-02-23 Thread George Nychis
> > > > Maybe something a little more accessible from MAXIM: > > http://www.maxim-ic.com/products/powerline/ > > They have an evaluation kit which might have some testpoints to > connect up to a USRP, or try to ship off samples through their 10/100 > ethernet interface. > > Thanks, Brian! I will

Re: [Discuss-gnuradio] Citation of GNUradio codes

2012-02-25 Thread George Nychis
Hi Nazmul, I've seen most people just cite "GNU Radio. http://gnuradio.org"; ... ultimately benchmark_tx and benchmark_rx use large parts of the entire GNU Radio project. - George On Fri, Feb 24, 2012 at 7:16 PM, Nazmul Islam wrote: > Hello, > > I have used the bench

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-26 Thread George Nychis
On Sun, Feb 26, 2012 at 5:01 PM, Marcus D. Leech wrote: > ** > On 02/26/2012 02:29 PM, Apurv Bhartia wrote: > > Its an XCVR2450, but I do *not* start any 'packet' transmissions. All I > do, is to start both the flowgraphs, and just listen for packets. > > In which case, the TX side is running--e

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-27 Thread George Nychis
bursts, but don't seem to control the overall stream? Maybe I am missing something. On Sunday, February 26, 2012, Marcus D. Leech wrote: > ** > On 02/26/2012 08:54 PM, George Nychis wrote: > > > > On Sun, Feb 26, 2012 at 5:01 PM, Marcus D. Leech > > > wrote: > &

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-28 Thread George Nychis
bursts, but don't seem to control the overall stream? Maybe I am missing something. On Sunday, February 26, 2012, Marcus D. Leech wrote: > ** > On 02/26/2012 08:54 PM, George Nychis wrote: > > > > On Sun, Feb 26, 2012 at 5:01 PM, Marcus D. Leech > > > wrote: > &

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-03-01 Thread George Nychis
e also be of value 1? Or only just the first sample? What about the last sample? Just trying to understand exactly how the trigger works. On Mon, Feb 27, 2012 at 9:12 PM, Josh Blum wrote: > > > On 02/27/2012 05:30 PM, George Nychis wrote: > > It's be good if you can ch

[Discuss-gnuradio] building carrier sense in the FPGA and UHD

2012-03-03 Thread George Nychis
can fit a bit to gate based on carrier sense, and a new command to set the carrier sense threshold. If you have any advice/guidance on how you'd like to see this implemented, let me know. I sincerely would like this to live long and prosper in GNU Radio and the USRPs. - George _

Re: [Discuss-gnuradio] building carrier sense in the FPGA and UHD

2012-03-04 Thread George Nychis
> > > I totally like and support your idea and would love to help realizing > it. Using the timestamp logic inside UHD as a reference is a great idea > that also came to my mind a while ago. > There are a few things from the architecture point of view though that > need to be discussed. Let's take

Re: [Discuss-gnuradio] building carrier sense in the FPGA and UHD

2012-03-04 Thread George Nychis
On Sun, Mar 4, 2012 at 10:01 AM, Marcus D. Leech wrote: > George, >> >> >> I do think we need something like what you have suggested but I am still >> a bit puzzled about the right way of implementing it. >> >> Best regards, >> Andre >> >>

Re: [Discuss-gnuradio] building carrier sense in the FPGA and UHD

2012-03-04 Thread George Nychis
Let me put it this way... I'm going to build it because I need it ;) But what I'm asking/hoping for is for it to be useful beyond just me and actually have a lifespan beyond my immediate use of it. So, I'd like to get some feedback on how others might like to see it tied in to UHD, or the type of

Re: [Discuss-gnuradio] building carrier sense in the FPGA and UHD

2012-03-06 Thread George Nychis
On Mon, Mar 5, 2012 at 9:26 AM, David Knox wrote: > > > I just don't want to loose all the flexibility of software by moving the > > critical but interesting things to hardware. > > > > (* But of course, it all depends upon your goals. *) > > George (and o

Re: [Discuss-gnuradio] detecting spectrum holes

2012-03-23 Thread George Nychis
x.org/event/nsdi10/tech/full_papers/yang.pdf They have a basic technique for detecting white space. Their paper was not about the TV bands, but the technique should work elsewhere. Best of luck, and welcome! - George ___ Discuss-gnuradio mailing list Di

[Discuss-gnuradio] IEEE DySPAN 2012: Call for Demonstrations

2012-04-05 Thread George Nychis
cation: 27 July 2012 Camera-Ready Paper Due: 17 August 2012 For enquiries, please contact DySPAN 2012 Demonstration Chairs. Best Regards, IEEE DySPAN 2012 Demo Chairs George Nychis, Carnegie Mellon University, Pittsburg, PA, USA ( gnyc...@cmu.edu) Przemyslaw Pawelczak, Fraunhofer Heinrich Hertz In

[Discuss-gnuradio] Problem with FW and FPGA images

2012-04-12 Thread George Sklivanitis
firewall of ubuntu but nothing changed. Are there any new images for UHD_003.004.001-27-g93d4a16f revision in the main branch that I am not aware of? Thanks, George -- Sklivanitis Georgios Postgraduate Student Telecommunications Division Technical University of Crete ECE Dept. Tel. : 28210 59257

Re: [Discuss-gnuradio] Problem with FW and FPGA images

2012-04-12 Thread George Sklivanitis
sometimes there is a connection and after just typing uhd_find_devices the connection is lost. Any other ideas guys? Thanks again, George On Fri, Apr 13, 2012 at 2:00 AM, Josh Blum wrote: > > > On 04/12/2012 05:15 PM, George Sklivanitis wrote: > > Hello everyone, > > > >

[Discuss-gnuradio] Fwd: Problem with FW and FPGA images

2012-04-12 Thread George Sklivanitis
-- Forwarded message -- From: George Sklivanitis Date: Fri, Apr 13, 2012 at 2:30 AM Subject: Re: [Discuss-gnuradio] Problem with FW and FPGA images To: Nick Foster Hi Nick, I am sorry but I have been misunderstood. Actually the same USRP2 that is not working and cannot manage

Re: [Discuss-gnuradio] Problem with FW and FPGA images

2012-04-12 Thread George Sklivanitis
Hi Josh, I think you may be right, but neither ifconfig eth0 nor dmesg reports an error. Furthermore, the drivers and operating systems running in both laptops are the same. It's UBUNTU 11.04 in some Toshiba Satellite laptops. Any other ideas guys? Thanks so much for your help. George O

[Discuss-gnuradio] Tweaking digital_bert_tx and digital_bert_rx

2012-04-22 Thread George Sklivanitis
past? Thanks, George The experiment takes place in the latest revision of both gnuradio and UHD, Ubuntu 11.04-64bit in Intel core-i7 laptops. -- Sklivanitis Georgios Postgraduate Student Telecommunications Division Technical University of Crete ECE Dept. Tel. : 28210 59257

Re: [Discuss-gnuradio] Help using UCLA Zigbee PHY examples updated for UHD

2012-05-15 Thread George Nychis
Henry, If you are able to update this code for UHD, please consider committing your changes to CGRAN so others don't have to go through the same process :) https://www.cgran.org/wiki/UCLAZigBee On Tue, May 15, 2012 at 7:01 PM, Josh Blum wrote: > > > File > "/usr/local/lib/python2.7/dist-p

[Discuss-gnuradio] Dynamic parameter modification in a custom block

2012-06-04 Thread George Sklivanitis
file_source -> custom_block2 -> file_sink (2) Would it be possible to use as the amplitude argument in (1) the output of the custom_block2 in (2). Thanks -George -- Sklivanitis Georgios Postgraduate Student Telecommunications Division Technical University of Crete ECE Dept. T

[Discuss-gnuradio] CGRAN downtime - working on it

2012-06-04 Thread George Nychis
Having some issues with CGRAN right now and actively working on it. So if you experience problems, hang in there. The SVN repo should be working just fine, but having some web issues. - George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] CGRAN downtime - working on it

2012-06-04 Thread George Nychis
Back alive... if anyone has issues please let me know. On Mon, Jun 4, 2012 at 11:42 AM, George Nychis wrote: > Having some issues with CGRAN right now and actively working on it. So if > you experience problems, hang in there. > > The SVN repo should be working just fine, but hav

[Discuss-gnuradio] Fwd: Dynamic parameter modification in a custom block

2012-06-04 Thread George Sklivanitis
Any ideas guys? -- Forwarded message -- From: George Sklivanitis Date: Mon, Jun 4, 2012 at 12:08 AM Subject: Dynamic parameter modification in a custom block To: discuss-gnuradio@gnu.org Hello all, I am dealing with the problem of finding a way to dynamically give values to a

Re: [Discuss-gnuradio] Dynamic parameter modification in a custom block

2012-06-04 Thread George Sklivanitis
Thank you so much for the response Michael. I will try to figure out what's going on with both ways and I will post updates to the list too. Thanks, George On Mon, Jun 4, 2012 at 2:30 PM, Michael Dickens wrote: > Hi George - I believe there are 2 possible solutions, though I've ne

[Discuss-gnuradio] if uhd_transmitter instantiated after receiver, TX works, otherwise RX works

2012-06-14 Thread George Nychis
e observed this? I have double checked that both are setting the sampling rates, independent of which is instantiated first (bandwidth is the same)... so I'm a little confused what would make the difference here. Thanks a bunch! - George ___ D

Re: [Discuss-gnuradio] if uhd_transmitter instantiated after receiver, TX works, otherwise RX works

2012-06-17 Thread George Nychis
it out in the instantiation of the transmitter, the receiver will work. This is despite both calls to set_freq() taking the same frequency. This must trigger whatever tuning is happening that breaks the opposing chain. Trying a newer version of UHD now... On Thu, Jun 14, 2012 at 4:12 PM, George

Re: [Discuss-gnuradio] if uhd_transmitter instantiated after receiver, TX works, otherwise RX works

2012-06-18 Thread George Nychis
know ASAP. - George On Mon, Jun 18, 2012 at 1:51 PM, Josh Blum wrote: > > > Thanks for the tip. I think I figured it out. > > > > The property to use an LO offset was true for TX and not RX. This would > > mean that tuning an individual chain and using it would be fine; bu

Re: [Discuss-gnuradio] if uhd_transmitter instantiated after receiver, TX works, otherwise RX works

2012-06-18 Thread George Nychis
Your attached patch also fixes the problem! Thanks a bunch for helping narrow down this issue :) On Mon, Jun 18, 2012 at 3:59 PM, George Nychis wrote: > Hi Josh, > > Thanks a bunch for these pointers/patches and looking in to it! We are > currently testing them out, shouldn

Re: [Discuss-gnuradio] Remove USRP filters.

2012-07-12 Thread George Nychis
happened to find this thread active here. You should consider putting gr-bluetooth up on CGRAN (https://www.cgran.org). It's where a lot of GNU Radio users go to find projects, and I know that this is one a lot of people would like to use, and possibly keep up to date! - G

[Discuss-gnuradio] CGRAN now breaking projects in to categories, feedback wanted!

2012-07-17 Thread George Nychis
andards as a heading. But, I definitely see some separation there. Trying to nail down what it is, and could use your help! Thanks! George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] CGRAN "release tagging"

2012-09-13 Thread George Nychis
If there is anything fundamentally that I can change about the CGRAN repository to help, let me know! On Thu, Sep 13, 2012 at 4:00 PM, Richard Farina wrote: > On 09/13/2012 03:31 PM, mle...@ripnet.com wrote: > > > > > > I've tried, and failed to tag the current version of multimode on > > CGRAN

[Discuss-gnuradio] CGRAN: some traffic statistics, top projects, call for new projects!

2012-11-29 Thread George Nychis
o projects there are out there. So, *please* *keep building on it!* People will find your projects this way. Note, you do not have to use the SVN repository. You are free to create a project page and link to external code sources (e.g., github). - George __

[Discuss-gnuradio] SRRC pulse shaping question

2012-12-04 Thread George Sklivanitis
p me with the above. Thanks, -George -- Sklivanitis Georgios PhD Student <>___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] SRRC pulse shaping question

2012-12-04 Thread George Sklivanitis
The filter is consisted of 55 taps. I tried by sending zeros. Though zeros are interpreted in -1's from the modulation mapping block. Moreover, the zeros will be taken into account as symbols to be shaped, therefore, the same thing will happen. -George On 12/5/12 12:07 AM, Brian Pad

Re: [Discuss-gnuradio] SRRC pulse shaping question

2012-12-04 Thread George Sklivanitis
I think this means creating a new block as I cannot come up with a quick way of implementing the above. In any case, thanks much. -George On 12/5/12 12:27 AM, Brian Padalino wrote: You'll need to figure out how to flush the filter state and send actual 0+0j samples through. Maybe you ca

[Discuss-gnuradio] Custom block one input/output variable number of output/inputs

2012-12-18 Thread George Sklivanitis
rts again. Overall the number of output samples are the expected ones but why the counter over the item restarts at some time instants? Thanks, -George -- Sklivanitis Georgios Postgraduate Student ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.

[Discuss-gnuradio] Fwd: Custom block one input/output variable number of output/inputs

2012-12-19 Thread George Sklivanitis
restarts again. Overall the number of output samples is the expected ones but why the counter over the noutput_items restarts at some time instants? Thanks, -George -- Sklivanitis Georgios Postgraduate Student -- Sklivanitis Georgios Postgraduat

[Discuss-gnuradio] Gr_Extras Packet_Framer problem

2013-02-04 Thread George Sklivanitis
suggestions on how to resolve this. I also saw Josh's proposal in Guy's similar problem but didn't work for me. Thanks, -George -- Sklivanitis Georgios Postgraduate Student ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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