Re: [Discuss-gnuradio] GSoC Proposal

On 20/03/16 00:53, Parth Sane wrote: > Hi Daniel, > The problem is I haven’t used GNU radio very much and also don’t understand > its internals properly. Also like you said there is no proper task > definition. I do want to participate but the problem here, is I frankly don’t > know what to

Re: [Discuss-gnuradio] PYBOMBS CtrlPort pygraphviz dependency

On Tue, Mar 22, 2016 at 7:05 PM, West, Nathan wrote: > Sorry, may or may not be talking about the same thing here. > gr-perf-monitorx requires python-networkx, which (I think) is an untracked > dependency. > For utilities like this, we have not previously made

Re: [Discuss-gnuradio] problem with packet encoder block

Sadly, we all need some sleep... Well, thanks, A LOT! I'll try that. Have a good night, you deserve a statue or a Nobel or something like that! Best regards, Miguel On 22-03-2016 22:41, Marcus Müller wrote: Indeed, there seems to be a problem here; sadly, I'll really need some sleep tonight ;)

Re: [Discuss-gnuradio] PYBOMBS CtrlPort pygraphviz dependency

Sorry, may or may not be talking about the same thing here. gr-perf-monitorx requires python-networkx, which (I think) is an untracked dependency. On Tue, Mar 22, 2016 at 7:04 PM, West, Nathan wrote: > gr-perf-monitorx. It's just been the kind of thing that everyone

Re: [Discuss-gnuradio] PYBOMBS CtrlPort pygraphviz dependency

gr-perf-monitorx. It's just been the kind of thing that everyone that uses it already has and no one tracks it. There's a couple of minor deps for utilities like this that sneak through the cracks, but they're very hard to keep track of until you run this on a brand new image. nw On Tue, Mar 22,

Re: [Discuss-gnuradio] PYBOMBS CtrlPort pygraphviz dependency

Who is calling pygraphviz? If we need this for GNU Radio, we probably need to update some recipes. M On 03/22/2016 12:12 PM, Laur Joost wrote: > Hi all! > > Fresh install of gnuradio-3.7.9.1 via PyBOMBS-2.0.1 on Ubuntu 15.10 > > When trying to run CrtlPort Performance Monitor on a fresh

Re: [Discuss-gnuradio] problem with packet encoder block

Indeed, there seems to be a problem here; sadly, I'll really need some sleep tonight ;) To answer your question, yes, Packet Encoder is really old and IMHO should be deprecated in favor of the architecture you'd find in the ofdm_tx.grc example (should be installed somewhere like

Re: [Discuss-gnuradio] problem with packet encoder block

As an attachment I send the .grc on which I'm doing tests. So: - with head and/or throttle between source and packet encoder -> fine - bypassing Head and Throttle -> huge file - bypassing Head, Throttle and Encoder -> fine I answered your questions below. Another question: I'm

Re: [Discuss-gnuradio] problem with packet encoder block

Hi Miguel, On 22.03.2016 21:54, Miguel Santos wrote: > > On 22-03-2016 20:32, Marcus Müller wrote: >> Hi Miguel, >> >> On 22.03.2016 17:14, Miguel Santos wrote: >>> Yes, it's set to repeat. >> oh! >>> My real flow graph ends with a file sink, but >>> here, as an example to test which block was

Re: [Discuss-gnuradio] gnuradio windows installation

Rohit, On 22.03.2016 22:05, Rohit Jatana wrote: > hey! > > Now you got my problem please tell me specifically what to do . I > guess this way we can solve the problem in a better manner. Sorry, I'm giving you free help on something that happens on your PC so that you can have success. I'm afraid

Re: [Discuss-gnuradio] diminishing returns with increasing frequency offset

Hi, Thanks for your response, >What you could try is to adapt alpha of the single pole IIR, to get the same averaging with the increased sample rate. I tried a variety of values without success but was not really sure what I was doing. Can you expand on what you meant by "get the same averaging

Re: [Discuss-gnuradio] problem with packet encoder block

On 22-03-2016 20:32, Marcus Müller wrote: > Hi Miguel, > > On 22.03.2016 17:14, Miguel Santos wrote: >> Yes, it's set to repeat. > oh! >> My real flow graph ends with a file sink, but >> here, as an example to test which block was the problem, I used a number >> sink just to be able to run it

Re: [Discuss-gnuradio] problem with packet encoder block

Hi Miguel, On 22.03.2016 17:14, Miguel Santos wrote: > Yes, it's set to repeat. oh! > My real flow graph ends with a file sink, but > here, as an example to test which block was the problem, I used a number > sink just to be able to run it and test it. But then, how does your flow graph decide

Re: [Discuss-gnuradio] gnuradio windows installation

Well, the point is that that tool installs Cheetah somewhere Python can find it; you shouldn't be adding c:\cheetah-2.4.4 to your python search path, but the path Cheetah was installed to. In your case maybe something like "C:\\Python26\\lib\\site-packages\\cheetah" ? Hope that helps! Best

Re: [Discuss-gnuradio] gnuradio windows installation

Could you specify "using the command prompt"? Does that imply you ran the setup.py script? On 22.03.2016 20:11, Rohit Jatana wrote: > Using the command prompt i installed it and its there in > python26/Lib/sitepackages/cheetah. > > On Tue, Mar 22, 2016 at 6:38 PM, Marcus Müller >

Re: [Discuss-gnuradio] Editing usrp_spectrum_sense.py

Dear Fikrat, the physical power depends on your waveform. Generally, the power is always $P(t) = U(t)\cdot I(t)$, which, thanks to Ohm's law ($U=R\cdot I\rightarrow I = \frac UR$) is $P(t) = \frac{U^2(t)}{R}$. As you might know from the basics of electrical engineering, one can represent harmonic

[Discuss-gnuradio] PYBOMBS CtrlPort pygraphviz dependency

Hi all! Fresh install of gnuradio-3.7.9.1 via PyBOMBS-2.0.1 on Ubuntu 15.10 When trying to run CrtlPort Performance Monitor on a fresh 3.7.9.1 install, I got errors about missing pygraphviz. sudo apt-get python-pygraphviz solved it for me. The supposedly equivalent sudo apt-get install

[Discuss-gnuradio] [GSoC] Infos for mentors + students

The proposal submission deadline for GSoC is approaching fast, and I'd like to ping everyone on the current status and some other information. First, I've updated the wiki page with the student instructions: http://gnuradio.org/redmine/projects/gnuradio/wiki/GSoCStudentInfo Please take another

Re: [Discuss-gnuradio] Scrambler - Descrambler

Ah, thanks for that, I tried looking for a block that does this and figured it would be called something like "drop ..." or "discard ...". This does work but it has it's one problem: My tagged stream to PDU block has to wait for all the bytes specified by the length_tag to come in before it forms

Re: [Discuss-gnuradio] Scrambler - Descrambler

I've always used a "skip head" block after the descrambler to remove these erroneous items that come out. "skip head" will drop whatever number of items on the floor you tell it to and there after pass everything. Rich On Tue, Mar 22, 2016 at 10:24 AM, devin kelly wrote: >

Re: [Discuss-gnuradio] Scrambler - Descrambler

Hi Sean, Thanks for taking the time. You're definitely right about setting the parameters for the scrambler/descrambler, it seems like I can get my descrambled signal to look pretty close to my original signal or I can totally screw it up by changing the parameters. What I don't know is whether

Re: [Discuss-gnuradio] Antenna compatibility problem

Hi SangHyoeg: If you want a good introduction to antennas, designed for the non-professional (typically, ham radio enthusiasts), I suggest "The ARRL Antenna Book for Radio Communications”. As an engineer, you will find the material easy to read and understand. The book will give you

Re: [Discuss-gnuradio] GSoC 2016 - Improve and Integrate PyBOMBS & CGRAN

Pretty solid! I haven't fully understood the bitbake thing, but I like the idea of becoming more involved in the embedded world, without trying to rewrite tools. Make sure it's on the GSoC proposal page! M On 03/22/2016 09:18 AM, Ravi Sharan wrote: > Hello, > > Here's a link to the draft of my

Re: [Discuss-gnuradio] problem with packet encoder block

Hi Marcus, thanks for your answer. Yes, it's set to repeat. My real flow graph ends with a file sink, but here, as an example to test which block was the problem, I used a number sink just to be able to run it and test it. I've made more tests and if I switch Throttle with Packet Encoder, it's

Re: [Discuss-gnuradio] GSoC 2016 - Improve and Integrate PyBOMBS & CGRAN

Hello, Here's a link to the draft of my proposal for GSoC. I would be glad to receive any comments on the deliverables mentioned in the proposal. Any other suggestions to improve the proposal are also welcome. Thanks in advance. Link to proposal - https://goo.gl/UQwXb2 Cheers, Ravi Sharan On

Re: [Discuss-gnuradio] Antenna compatibility problem

Hi 1) Center frequency​ 1.5 Ghz. ANT500 performs well from 75Mhz - 1 Ghz. Outside its optimal range, you can find better antenna. 2) Center frequency 325 Mhz. This is within ANT500's nominal range, but outside your board's range. You will have problems with your board. As Marcus Muller

Re: [Discuss-gnuradio] Antenna compatibility problem

On 03/22/2016 10:44 AM, SangHyoeg Kim wrote: Hi, ANT supports 75MHz - 1Ghz, but CBX supports 1.2GHz - 6GHz. I am confusing coverage of antenna and daughter board. What means these range? Is this situation possible? - Center frequency 1.5Ghz with ANT500 - Center frequency 325MHz with ANT500

Re: [Discuss-gnuradio] Antenna compatibility problem

Hi, ANT supports 75MHz - 1Ghz, but CBX supports 1.2GHz - 6GHz. I am confusing coverage of antenna and daughter board. What means these range? Is this situation possible? - Center frequency 1.5Ghz with ANT500 - Center frequency 325MHz with ANT500 Thanks 2016. 3. 22. 오후 8:58 Nikos

Re: [Discuss-gnuradio] gnuradio windows installation

After unpacking, how did you install Cheetah? On 03/22/2016 01:18 PM, Rohit Jatana wrote: > https://pypi.python.org/pypi/Cheetah/2.4.4 > > I got the .tar.gz file from here and i unpacked it to my c:\ disk > > On Tue, Mar 22, 2016 at 5:41 PM, Marcus Müller >

[Discuss-gnuradio] registering as mentor on GSoC site?

Hi all, Can somebody please give me mentor access in the GSoC site so I can review proposals for the project I proposed and make sure the students I'm corresponding with have registered before the deadline? I've registered with the program using this email address, please let me know if I need

Re: [Discuss-gnuradio] gnuradio windows installation

Hm, strange, the Cheetah package on my PC is definitely written with capital C and can't be imported with small c. How did you install your Cheetah? Best regards, Marcus On 03/22/2016 01:05 PM, Rohit Jatana wrote: > import Cheetah;print Cheetah.version > > Traceback (most recent call last): >

Re: [Discuss-gnuradio] gnuradio windows installation

import Cheetah;print Cheetah.version Traceback (most recent call last): File "", line 1, in import Cheetah;print Cheetah.version ImportError: No module named Cheetah when i am importing with small c ,it's working. On Tue, Mar 22, 2016 at 5:07 PM, Marcus Müller

Re: [Discuss-gnuradio] Antenna compatibility problem

​Hi, There is no problem using these antennas with your board, as long as you terminate them correctly, 50 O. You choose your antenna based on your coverage, not your board. So what coverage do you need? BR, Nikos On Tue, Mar 22, 2016 at 1:39 PM, SangHyuk Kim wrote: >

Re: [Discuss-gnuradio] Antenna compatibility problem

Hi SangHyuk Kim, this question is unrelated to GNU Radio; I'm taking the freedom to reply to usrp-us...@lists.ettus.com, too, and ask you to continue discussion there! On 03/22/2016 12:39 PM, SangHyuk Kim wrote: > Hi, > > I'm using CBX daughter board which supports from 1.2GHz to 6.0GHz with >

[Discuss-gnuradio] Antenna compatibility problem

Hi, I'm using CBX daughter board which supports from 1.2GHz to 6.0GHz with ANT500 (from 75MHz to 1GHz). Actually, I didn't know this antenna coverage. I have two question. i) Is there any problem when I use ANT500 with CBX ? I have tested QAM and QPSK performance using OFDM using those devices

Re: [Discuss-gnuradio] gnuradio windows installation

Hey Rohit, "import Cheetah" ^ the capital C is important, which is why I expliticly asked you to copy and paste the command. Marcus On 03/22/2016 12:31 PM, Rohit Jatana wrote: > hey! > i have appended the python path > > >>> import sys > >>> print sys.path > ['C:\\Python26\\Lib\\idlelib',

Re: [Discuss-gnuradio] gnuradio windows installation

Hi Rohit, can you make sure to use the "reply" button in your mail client to directly reply to my mails? That way, the context is preserved, and mail clients can show your discussion on the mailing list as one thread, making it far more probable you'll get a good answer! On 22.03.2016 10:21,

[Discuss-gnuradio] gnuradio windows installation

yes cheetah is already installed. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Handling of IQ files

Happy to read you replay Henry! Feel free to rip/change/upgrade my work, but let me know about ur progress, pse! Remember that it's fairly resource hungry ( file larger that 250 Mb crashes the app also on my I7/16Gb), but it's a starting point. I think that with GNURADIO it's possible to refine

Re: [Discuss-gnuradio] problem with packet encoder block

Hi Miguel, I assume your Vector Source is not set to "Repeat"? Or how does your Flow graph Terminate? Generally, no block can modify its input buffer; hence, what File Sink "sees" as an input number sequence must be identical (unless we really have a bad memory access bug at hand, which I don't