[Discuss-gnuradio] About setting the GRC block properties.

- I think I set something wrong on this block, is there any place which contain all the documentation about how to set the parameters? also, I am confused on the "Virtual source" block, it shows "pre-ofdm" how can I cre

[Discuss-gnuradio] Gnuradio-Companion Documentation.

Morning, from the site, http://gnuradio.org/redmine/projects/gnuradio/wiki/GNURadioCompanion There is the section, Can anybody tell me how to install it and which folder I should be at? Thanks Installing Documentation To view the blocks' documentation from inside GRC, install doxygen and config

Re: [Discuss-gnuradio] Gnuradio-Companion Documentation.

Hello, I built Gnuradio using $ wget http://www.sbrac.org/files/build-gnuradio && chmod a+x ./build-gnuradio && ./build-gnuradio Which means I don't need to worry about this? ./configure --enable-doxygen make sudo make install On Wed, Sep 18, 2013 at 1:49 PM, M Dammer

Re: [Discuss-gnuradio] Gnuradio-Companion Documentation.

Thank you, So those documentation will be shown when I click block > Properties ? That's the description below "Documentation" section? Sincerely, On Wed, Sep 18, 2013 at 2:22 PM, Tom Rondeau wrote: > On Wed, Sep 18, 2013 at 3:13 PM, Kevin wrote: > > Hello, >

Re: [Discuss-gnuradio] About setting the GRC block properties.

Good afternoon, Anyone had been making those blocks and letting it running successfully before? Can you leave some advice or message? Thanks ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnurad

Re: [Discuss-gnuradio] About setting the GRC block properties.

m_carrier_allocator_cvc_make', argument 2 of type 'std::vector< std::vector< int,std::allocator< int > >,std::allocator< std::vector< int,std::allocator< int > > > > const &' --

[Discuss-gnuradio] Fwd: About setting the GRC block properties.

ng the same thing? Thanks -- Forwarded message -- From: Martin Braun (CEL) Date: Fri, Sep 20, 2013 at 6:08 PM Subject: Re: [Discuss-gnuradio] About setting the GRC block properties. To: GNURadio Discussion List On Fri, Sep 20, 2013 at 01:45:46PM -0500, Kevin wrote: > "Vir

Re: [Discuss-gnuradio] Fwd: About setting the GRC block properties.

yclic Prefixer"? Or my thought is totally wrong! Sincerely, On Wed, Sep 25, 2013 at 11:45 AM, Marcus Müller wrote: > Hi Kevin, > > no, they are not the same. > In the ofdm mod XML file (gr-digital/grc/digital_ofdm_mod.xml), the make > element is: > grc_b

Re: [Discuss-gnuradio] Throttle block form wav files

t use a throttle. This will allow the audio sink to limit the data rate from the wav source (by backpressure). When an audio source is being used, if the source and sink are from the same sound card and have the same sample rate requested then they should be happy too. -- Kevin Reid

Re: [Discuss-gnuradio] Throttle block form wav files

d be similar to the selector block itself, but it would be a source, which has the wav and audio sources "built into" it. Alternatively, you could write your main()/top block as a Python program and put the _rest_ of your logic (the demodulator and sink) into a GRC block which is u

Re: [Discuss-gnuradio] Throttle block form wav files

control, if you wanted one. (If you did have an extra output that you couldn't get rid of, a null sink would be simplest there.) -- Kevin Reid <http://switchb.org/kpreid/> ___ Discuss-gnuradio mailing

Re: [Discuss-gnuradio] Running flowgraphs from command line

thon.framework/Versions/2.7/lib/python2.7/site-packages" After you inserted those lines to your .profile, you just need to open a new terminal, and you can again check via "env" if that worked out. Regards, Kevin Am 07.09.15 um 18:29 schrieb Patrick Krämer: > Hi everybod

Re: [Discuss-gnuradio] Analyze data from Time Sink

The open source utility gnuplot works really well, I'd recommend it. Kevin Sent from my iPhone > On Sep 12, 2015, at 11:03, Przemek Lewandowski wrote: > > Hello everybody > > I have a question: > > I have my simple transmitter from garage and I recorded its data to

Re: [Discuss-gnuradio] Function Probe and OOT Blocks

k". I will help if I can but alas, I am still quite a newbie, so others will be able to help much more efficiently! Kevin Sent from my iPad On Sep 23, 2015, at 4:12 AM, David Halls mailto:david.ha...@toshiba-trel.com>> wrote: > ​Hi guys, > > I am familiar with using functi

Re: [Discuss-gnuradio] question about routing data

ove the unused modulators from the flow graph; this cannot be done inside GRC (unless you use Selector and Valve carefully) but can be done from a Python program (which can interact with things written using GRC via hier blocks). -- Kevin Reid

Re: [Discuss-gnuradio] question about routing data

On Oct 4, 2015, at 6:02, Przemek Lewandowski wrote: > Thank you Kevin for reply. > > I have created small system with "multiply matrix" block. And it works good, > BUT I dont how to change it during runtime :) there is input "set A" - but I > dont know how

Re: [Discuss-gnuradio] question about routing data

On Oct 4, 2015, at 9:19, Przemek Lewandowski wrote: > Kevin, one more small question > > if I want to have for example 3 inputs and 3 outputs, and 2 gui chooser > widgets - for choosing input and output. what will change ? That would be something like [[output_choo

Re: [Discuss-gnuradio] SSB/CW/FM tranceiver

there are no such barriers to using a USRP in this manner. I don't currently have any USRP hardware to test with, though. -- Kevin Reid <http://switchb.org/kpreid/> ___ Discuss-gnuradio mailing list Discus

Re: [Discuss-gnuradio] Relative Newbie Question: PSK Demod Block - RDS/RDBS Data Recovery

Thank you Tom, I will adjust the decimation and then take a look at your other suggestion. I’ll keep you posted as to how it goes. At least I feel that I am on the right track now! Kevin > On Nov 7, 2015, at 11:02 AM, Tom Rondeau wrote: > > > > On Sat, Nov 7, 2015 at

Re: [Discuss-gnuradio] Relative Newbie Question: PSK Demod Block - RDS/RDBS Data Recovery

time decoding. Kevin > On Nov 7, 2015, at 3:53 PM, Kevin McQuiggin wrote: > > Thank you Tom, I will adjust the decimation and then take a look at your > other suggestion. I’ll keep you posted as to how it goes. At least I feel > that I am on the right track now! > >

[Discuss-gnuradio] Lock-Up Time for 2PSK Demodulation

processor. USB3 connection. Any advice would be appreciated! Kevin signature.asc Description: Message signed with OpenPGP using GPGMail ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] New to GNURADIO - DIGITAL MODULATION

ch the excellent series on YouTube by Balint Seeber, he covers a lot of digital modulation topics. The first in the series is at https://www.youtube.com/watch?v=N9SLAnGlGQs <https://www.youtube.com/watch?v=N9SLAnGlGQs>. He has something like a dozen of them. Hope this helps, Kevin > On Nov

Re: [Discuss-gnuradio] gnuradio 3.7.9: Issue with OSX Port of gnuradio-companion

“Kevin’s Programs”) then it generates fine. I will look for where the escape needs to be added… Kevin > On Dec 25, 2015, at 1:49 PM, Kevin McQuiggin wrote: > > Hi All: > > I searched the mailing list archives for this issue with negative results. > > Issue: an unchanged

Re: [Discuss-gnuradio] ham/amateur getting started

hniques. However, this hope is unrealistic, given the changed amateur radio focus and its now primarily non-technical demographic. Here on the list, I think that we'll see that remaining small percentage of amateurs who are technically inclined, and willing to invest time in a steep learning c

Re: [Discuss-gnuradio] ham/amateur getting started

se it. You don’t need a Ph.D., but you do have to read, and think, and invest some time in it. Plus, you’ll have to invest your own time in terms of building, making mistakes, and revising. This is where the guided tutorials come in. In my case, I found these articles super-helpful. With

Re: [Discuss-gnuradio] power amplifiers on TX

ever used or seen one in person. I hear they stand behind their gear, and will also do custom designs. Kevin (VE7ZD) On 15-12-30 04:03 PM, Johnathan Corgan wrote: > On Wed, Dec 30, 2015 at 3:14 PM, James Humphries > mailto:james.humphr...@ettus.com>> wrote: > > >

Re: [Discuss-gnuradio] RDS decoding ?

send you a link to it as well. For this stage, I would recommend checking out the work done by Oona Räisänen. Her web site is http://www.windytan.com, and she has several informative posts about RDS. Kevin > On Jan 10, 2016, at 4:45 AM, Jean-Michel FRIEDT > wrote: > > I have

Re: [Discuss-gnuradio] RDS decoding ?

. Kevin FM-RDS-v10-with-tcp.grc Description: Binary data > On Jan 10, 2016, at 11:54 AM, Kevin McQuiggin wrote: > > Hi Jean-Michel: > > Certainly! It took me a couple of months of reading, experimentation and > head-scratching to figure the DSP side of RDS reception ou

Re: [Discuss-gnuradio] dive into gnu-radio

e. Read for awhile, then see where you're at. It does grow on you with research, but I also have to say that my knowledge is "stone knives and bear skins" to quote a popular Vulcan, compared to the level of knowledge of most of the folks on this list. Hope these comments help i

Re: [Discuss-gnuradio] Antenna compatibility problem

64&sr=8-1&keywords=arrl+antenna+book <http://www.amazon.com/ARRL-Antenna-Radio-Communications-Softcover/dp/1625950446/ref=sr_1_1?ie=UTF8&qid=1458665764&sr=8-1&keywords=arrl+antenna+book> Hope this helps, Kevin > On Mar 22, 2016, at 7:59 AM, Nikos Balkanas wrote: >

Re: [Discuss-gnuradio] How to "close" osmosdr source?

to server restarts, so when a > server disconnection is detected, my sensor tries to restart itself. Instead of recreating the source, why not recreate the connection to the server and keep the source? -- Kevin Reid &

Re: [Discuss-gnuradio] How to "close" osmosdr source?

On Mar 25, 2016, at 7:53, M. Ranganathan wrote: > Kevin, > > Thanks for the answer. My setup is a little more complicated than that. The > sensor reads its configuration from the server. The server could reconfigure > the sensor between restarts. > > I did try stoppi

Re: [Discuss-gnuradio] time triggered filter

could afford some unreliable time delay, you could instead write code to monitor a probe block or message output for your trigger condition and toggle the settings of a 'Copy' (for case (a)) or 'Multiply Matrix' (for case (b)) block. This approach is maximally flexible, but i

Re: [Discuss-gnuradio] time triggered filter

hniques to turn the result into a band-reject filter: see http://www.dspguide.com/ch14/5.htm if you need info. > thank you Kevin, Please make sure to “reply all” (include the mailing list in your replies) so other people can follow the discussion and offer advice. -- Kevi

Re: [Discuss-gnuradio] [Docker] New GNU Radio images with GUI support

Dockerfile ENV line) with "-e DISPLAY=unix$DISPLAY". Of course, this wouldn't work that way for Windows. But I could imagine that devices can cause problems there as well because of the small VM that you need. Hope you find some of this helpful. Greetings, Kevin

Re: [Discuss-gnuradio] [Docker] New GNU Radio images with GUI support

Also, is there a reason not to use the "-j" option in a Dockerfile? Kevin ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Pybombs install fetch fail

4.6.2.tar.gz"; and then retry the pybombs install command. Greetings Kevin ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Looking for Inmarsat Documentation Diagram - "Figure A2-1"

a readable copy of that figure? Thanks in advance, Kevin signature.asc Description: Message signed with OpenPGP using GPGMail ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] INMARSAT wide signal question

k. I'm using a home brew patch antenna, and the LNA4ALL low noise amplifier. Kevin Sent from my iPad > On May 3, 2016, at 12:45 PM, Henry Barton wrote: > > http://rtlsdrblog.rtlsdrblog.netdna-cdn.com/wp-content/uploads/2015/10/sdrplay_lband-1024x573.png > I didn’t see the widest

Re: [Discuss-gnuradio] INMARSAT wide signal question

github yet, I'm an old timer so I'm developing it locally. I can release it once it's ready! Kevin Sent from my iPad > On May 3, 2016, at 8:31 PM, Henry Barton wrote: > > So the control channels are the narrow ones? I’m guessing the really wide > ones are the traffic.

Re: [Discuss-gnuradio] INMARSAT wide signal question

My error, typo I meant GMSK!! Sent from my iPad > On May 3, 2016, at 9:31 PM, Kevin McQuiggin wrote: > > Hi Henry: > > The narrowest channels are 600 bps MPSK, although in Inmarsat parlance they > call it "A-BPSK". There are 1200, 4800, 10200 bps channels as well

Re: [Discuss-gnuradio] Python Unit Tests Running Twice

On Thu, Jun 16, 2016 at 5:21 PM, Dave NotTelling wrote: > I have a solution in place right now that works around the second > test, but it's nasty. Global variables and whatnot. > You wrote originally that the reason the tests can't be run twice is “the radio hardware is never released.” T

Re: [Discuss-gnuradio] Python Unit Tests Running Twice

On Thu, Jun 16, 2016 at 8:48 PM, Dave NotTelling wrote: > The radio is released properly when the destructor is called, but > it's not getting called for some reason. I have several C++ tests that > work like a champ, but the Python test doesn't actually release the > resources that were al

Re: [Discuss-gnuradio] Audio underrun when using Audio Sink

On Jun 18, 2016, at 19:07, Paul S wrote: > Currently, I am trying to send data over ultrasound signals based on [1], > using the audio sink and several sources. The problem is that I get often > consecutive audio underruns (for several seconds straight). > This is my flowgraph: >

Re: [Discuss-gnuradio] proper use of start(), stop(), and wait() to interact with program flow

On Jun 29, 2016, at 07:50, Ed Coleman wrote: > if __name__ == '__main__': > simpleTone().run() > > The code above works fine, however if I make the following substitution: > > if __name__ == '__main__': > simpleTone().start() > simpleTone().wait() > #time.sleep(3) > simpleTon

Re: [Discuss-gnuradio] new user

. You'll love gnuradio once you get it working. Start with some simple flowgraphs, do lots of reading and build on your knowledge from there. Expect a learning curve though! Ask here on the list for good books and reference material. Kevin On 2016-07-05 5:37 AM, Darin Decker wrote:

Re: [Discuss-gnuradio] [USRP-users] pulse generation

Hi Haris: Sounds like a project you are really going to learn a lot from. Take a look at the gnuradio tutorials, they will get you going on how to generate pulses as you require. Kevin From: USRP-users [mailto:usrp-users-boun...@lists.ettus.com] On Behalf Of Haris Tanveer via

Re: [Discuss-gnuradio] Resampler with changing rate during runtime

On Wed, Aug 3, 2016 at 8:29 AM, Sebastian Müller wrote: > Now, the quadrature rate and audio decimation are unknown before runtime, > but calculated by my other blocks while running. For this purpose, I would > like to implement a block, that resamples any given signal to a fixed > output sample

Re: [Discuss-gnuradio] Resampler with changing rate during runtime

On Thu, Aug 4, 2016 at 9:43 AM, Sebastian Müller wrote: > Hi Kevin, > > the problem arises since my blocks detect signals in the spectrum and > estimate their bandwidth. Then, each signal gets filtered and decimated to > the needed sample rate according to Nyquist-Shannon. This

Re: [Discuss-gnuradio] Discuss-gnuradio Digest, Vol 165, Issue 15

the list. Have you reviewed the Gnuradio tutorials? They will explain things and possibly help you answer your own questions. Kevin Sent from my iPad > On Aug 14, 2016, at 9:16 PM, bala vishnu wrote: > > Can anyone please brief me about extracting the information from > us

Re: [Discuss-gnuradio] AUTOMATIC START AND STOP FILE RECORDING

Hi Ernest: Why not just record at the three stations continuously with accurate time stamps going into the files? Then you can line up the three recordings easily using the time stamp values. When the recordings start and stop won't matter. Kevin Sent from my iPad > On Aug 24, 201

Re: [Discuss-gnuradio] Signal Source - frequency control

On Sun, Sep 4, 2016 at 9:48 AM, Gavin Jacobs wrote: > I am building an application to send an APRS message. I have GRC 3.7.9.2 > running on Windows 10, with a Hackrf as the radio. I have a kluge to > transform the bits into an audio signal at 2200 Hz for a 0, and 1200 Hz for > a 1. See the attac

Re: [Discuss-gnuradio] Dynamically Changing the File Name for the File Sink

On Sun, Sep 4, 2016 at 11:10 PM, Hasini Abeywickrama wrote: > I have a flowgraph that users a USRP to receive signal and writes it to a > file using a file sink. > > I want to start writing to the file and a specific time precisely. I > modified the code to start running the flowgraph at a specif

Re: [Discuss-gnuradio] Fw: Signal Source - frequency control

On Sep 5, 2016, at 16:04, Gavin Jacobs wrote: > Now here's the frustrating part, when I tried to use another embedded python > block to implement the bit banger, I got confusing runtime errors indicating > that the top block was getting the two blocks mixed up(e.g. size mismatch). > Is there a

Re: [Discuss-gnuradio] File Sink Output Size Problem

On Thu, Sep 8, 2016 at 6:34 PM, Pavan Yedavalli wrote: > My current flowgraph consists of a signal source (cosine) -> > stream_to_vector of size 1024 -> forward FFT of size 1024 -> complex_to_mag > of size 1024 -> file sink of size 1024 (unbuffered OFF and append set to > overwrite). > > After I

Re: [Discuss-gnuradio] File Sink Output Size Problem

On Thu, Sep 8, 2016 at 7:08 PM, Pavan Yedavalli wrote: > Maybe the Head block is a good option - it looks like I should put that in > between the complex_to_mag and the file_sink blocks, right? > You can put it anywhere as long as you understand how much data is flowing through that point and ad

Re: [Discuss-gnuradio] Transmitter Control

On Fri, Sep 9, 2016 at 8:49 AM, Gavin Jacobs wrote: I am working on a flow graph to send APRS packets. I have made good > progress from the UDP source up to the GR-OSMOSDR sink, but I am a bit > stuck on how to enable/disable the transmitter of the hackrf. Unfortunately, gr-osmosdr does not sup

Re: [Discuss-gnuradio] Transmitter Control

On Fri, Sep 9, 2016 at 9:12 AM, Marcus D. Leech wrote: > On 09/09/2016 11:59 AM, Kevin Reid wrote: > >> If you are only transmitting, however, there is a theoretically simpler >> solution: let the HackRF remain in transmit mode, and just transmit zeros >> when you do not

Re: [Discuss-gnuradio] slicing up a 'file-sink' capture?

On Fri, Sep 23, 2016 at 4:02 PM, wrote: > > Can you suggest a tool that I can use to "slice out" - the sections > of interest? I'm not sure about 750MB files but in general if you are just trying to identify high signal power and slice that out, audio file editing tools that allow reading "

Re: [Discuss-gnuradio] simple mod-demod combinations doesn't work

On Tue, Oct 25, 2016 at 2:21 PM, Fons Adriaensen wrote: > Between the two incoherent domains there is a buffer and a resampler. The > resampler is adjusted so that the average number of samples 'in the > pipeline' is constant. The problem is finding a reliable and noise-free > estimate of that nu

Re: [Discuss-gnuradio] What Is The Proper Way To Change Block Parameters While Running

On Tue, Dec 20, 2016 at 8:38 AM, Sean Horton wrote: > What is the best way to change settings such as gain, taps, frequency > values, etc of various blocks while running? The current setup I'm > refactoring receives new configs over tcp, and a block outputs the new > config values to probe signal

Re: [Discuss-gnuradio] Reconfiguring OFDM flow graph at run time gives "FATAL: Missing a required length tag on port 0 at item" error

On Sat, Dec 24, 2016 at 9:46 AM, Damindra Bandara < damindra.band...@gmail.com> wrote: > > Also, I get the error only when I try to reconfigure a flow graph. Could > you please let me know the correct way to reconfigure a flow graph when > they are using tags. > Both reconfiguration and tags are l

Re: [Discuss-gnuradio] RunTime error in runtime_swig.py

On Mon, Jan 30, 2017 at 11:12 AM, Sonny Rajagopalan < sonny.rajagopa...@gmail.com> wrote: > RuntimeError: list contains invalid format! > FWIW, I've seen this error before, and if I remember correctly it's a symptom of multiple versions installed (such that the GR Python code is not the same vers

Re: [Discuss-gnuradio] File Sink - Question

On Sat, Feb 25, 2017 at 8:09 AM, Ellie White wrote: > > self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_float*512, > "C:\Users\Ellie\fm_data.dat", False) > Your problem is here. Those backslashes need to be escaped in the string literal. Since this code was generated by GRC then this wo

Re: [Discuss-gnuradio] File Sink - Question

On Sat, Feb 25, 2017 at 8:29 AM, Marcus D. Leech wrote: > On 02/25/2017 11:14 AM, Kevin Reid wrote: > > On Sat, Feb 25, 2017 at 8:09 AM, Ellie White > wrote: >> >> self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_float*512, >> "C:\Users\Ellie\fm_data.

Re: [Discuss-gnuradio] Audio latency keeps increasing

On Sun, Mar 12, 2017 at 11:32 AM, Phil Frost wrote: > I'm prototyping some software which uses a PulseAudio sink/source pair > which I wrote[1]. Even doing something as simple as having the audio source > go into a GUI sink and the audio sink, I'm having an issue where as the > program runs longe

Re: [Discuss-gnuradio] Controlling Flowgraph Variables from a Webpage/ External Application.

On Tue, Mar 14, 2017 at 8:28 AM, Mehmeto wrote: > I would like to control the variables in realtime of a GNU Radio Flowgraph > (like Sampling Rate, Center Frequency, Demodulator type etc.) from a > Webpage > or external application. > I imagine that we need a webserver/ external application that

[Discuss-gnuradio] How do I actually activate ControlPort?

I wanted to use the performance counters feature of GNU Radio, which requires getting ControlPort working. However, there seems to be a gap in the documentation. I have read the information at http://gnuradio.org/ redmine/projects/gnuradio/wiki/ControlPort and http://gnuradio.org/doc/ doxygen/page

Re: [Discuss-gnuradio] How do I actually activate ControlPort?

On Thu, Mar 16, 2017 at 6:20 AM, Jawad Seddar wrote: > Hi Kevin, > > I don't know about using the config line in .gnuradio/config.conf as mine > looks something like this: > > [ControlPort] > on = True > edges_list = True > [PerfCounters] > on = True > expor

Re: [Discuss-gnuradio] Help needed to obtain AM Depth of Modulation

On Wed, May 10, 2017 at 3:31 AM, Matt Cooper wrote: > Hi guys! > > I am trying to calculate the Depth of Modulation > of > an AM signal using GNU Radio, but I just can't make it work. > ... > - In GNU Radio, I'm using this

Re: [Discuss-gnuradio] Mixing multiple streams to audio

On Tue, May 23, 2017 at 11:31 AM, John Ackermann N8UR wrote: > I'm continuing to work on a multi-channel NBFM receiver using the > polyphase filter. I have the basic system working, but am hung up on how > to get audio out of the system; most of my attempts end up either with > audio underruns,

Re: [Discuss-gnuradio] GNURadio in SUDO Mode?

On Thu, Jun 15, 2017 at 6:49 PM, Taylor Eisman wrote: > I've been having trouble writing a file to a folder on Linux - Ubuntu. > I've attached a screenshot of the error below. If you have any further > questions, please ask! > For the future — It's better to copy and paste the text rather than

Re: [Discuss-gnuradio] FM Modulation problem/question

On Mon, Jun 26, 2017 at 10:07 AM, Brashendeavours wrote: > Where my results differ from what I expect, is approximately above 100Hz. > Using an baseband of 1200Hz, I no longer get a signal sweeping from -ive to > +ive, I get [a constant frequency of 1200Hz on the waterfall]( > http://imgur.com/Bq

Re: [Discuss-gnuradio] FM Modulation problem/question

On Mon, Jun 26, 2017 at 10:48 AM, Brashendeavours wrote: > My next question then, is since the deviation is affected by both > amplitude and frequency, how would you recommend I empirically > determine/set a peak deviation of 2400Hz for 1200Hz baseband? > The *deviation* is determined by the mod

Re: [Discuss-gnuradio] Interpolating FIR filter with runtime adjustable interpolation value

On Tue, Jun 27, 2017 at 4:16 PM, Joe K wrote: > In reality my interpolating filter is part of a Python-based hierarchical > block, which is based off of the gmsk_mod in gr-digital. I'm essentially > trying to decouple my symbol rate from the hardware sample rate by > adjusting the modulator's sa

[Discuss-gnuradio] What does "Feedback" mean in the issue tracker?

e it and got no response (#667), and in the other the update reads like just diagnosing the bug (#713). I'd like to get this clarified so I can be assured I'm doing the right thing in my bug reporting. -- Kevin Reid

Re: [Discuss-gnuradio] What does "Feedback" mean in the issue tracker?

On Oct 25, 2014, at 5:27, Jeff Long wrote: > On 10/24/2014 09:02 PM, Kevin Reid wrote: >> What does it mean in the GNU Radio issue tracker for an issue to have the >> status "Feedback"? > > Usually "Feedback" does mean "waiting for user feedbac

[Discuss-gnuradio] First project: Garmin Rino GPS/FRS/GMRS?

n discern the encoding of the digital information. Thanks for any pointers anyone can think of to begin working on this system. -Kevin ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Switching flow between two paths.

of either of these strategies is that you're paying the CPU cost of both encoders all of the time.) -- Kevin Reid <http://switchb.org/kpreid/> ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] gr-ais fails?

l/376 I, too, would like to use gr-ais and hope this problem gets resolved soon (either by gnuradio accepting the patch or gr-ais offering a “stable branch”). -- Kevin Reid <http://switchb.org/kpreid/> ___ D

Re: [Discuss-gnuradio] Two rtl2832 dongles in a GRC project

EEPROM serials instead, which is useful for consistent selection. (Note that most dongles come from the factory with a serial number like '01', so you'll have to use the rtl_eeprom tool to rewrite them to unique text of your cho

Re: [Discuss-gnuradio] QT Freq Sink Display not centering correctly?

equency content of the signal is displayed, you could use the rotator_cc block before the sink. -- Kevin Reid <http://switchb.org/kpreid/> ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Gnuradio FFT - Graph concatenation

sterday..." Perhaps he should be encouraged to move it beyond prototype status! -- Kevin Reid <http://switchb.org/kpreid/> ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Where to find the "Decimating FIR Filter" for gr-lte

R > for the ~50 taps in Kristians filter. fft_filter is a drop-in replacement for fir_filter, so feel free to try it out and see if it improves performance. The last machine I tested on, it was potentially helpful for anything over 10 taps. -- Kevin Reid

[Discuss-gnuradio] First Post - Question - GRC Repeat Block

scoured the Wiki, docs, Google, etc, and having not found an answer, I thought I’d make my first post and ask. Thanks in advance, Kevin signature.asc Description: Message signed with OpenPGP using GPGMail ___ Discuss-gnuradio mailing list Discuss

Re: [Discuss-gnuradio] First Post - Question - GRC Repeat Block

I should have added that I am running gnuradio version 3.7.7.1 under OSX 10.10.4. > On Jul 25, 2015, at 8:26 PM, Kevin McQuiggin wrote: > > Hi All: > > I would like to use a repeat block to stretch the duration of vectored input > dynamically. For example, (0,1,0,1,…) i

[Discuss-gnuradio] Newbie Question on set_interpolation and a New Variable Repeat Block

nterp) in my callback function. Newbie deficiencies are evident and I am turing to the list for some suggestions. I am using Ubuntu 14.04 and the latest gnuradio, built through the build-bnuradio script. Thanks in advance, Kevin signature.asc Description: Message signed w

[Discuss-gnuradio] Solved! Repeat Block/New Repeat Block

explanation. I learned a lot through this process. Kevin signature.asc Description: Message signed with OpenPGP using GPGMail ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Solved! Repeat Block/New Repeat Block

> Kevin, > > Yes, the qtgui sinks can only accept streams coming in at the same sample > rate, and the repeat block would change that. Glad you figured it out. I > really thought that I had added that warning to the manual page, but I don't > see it in the published man

Re: [Discuss-gnuradio] OOT block not showing in GRC

k it first. Hope this helps, Kevin > On Aug 8, 2015, at 3:33 PM, Washbourne, Logan > wrote: > > Hello all, > > I am trying to create a simple OOT block. Eventually I would like to create a > block that lets a transmitting agent know if their message was received or > no

Re: [Discuss-gnuradio] OOT block not showing in GRC

found a much better way to do... So I don’t “need” the block myself anymore, but nonetheless it is handy to have around. Kevin > On Aug 8, 2015, at 3:56 PM, Washbourne, Logan > wrote: > > Kevin, > > It worked! I really appreciate your help!! > > Ron, > > So

Re: [Discuss-gnuradio] Block Method called at end of Simulation

On Sat, Jul 15, 2017 at 11:33 AM, Vamsi Krishna Adsumilli < vamsi...@yahoo.com> wrote: > Is there a method (API) in each block which is being called when flow > graph is ended (simulation stopped), to clean up resources like closing > files, disconnecting database or killing threads. > > tb.stop()

Re: [Discuss-gnuradio] QT Freqency Sink vs. Log Power FFT values

On Sun, Aug 6, 2017 at 1:57 PM, John Ackermann N8UR wrote: > I also have a QT Frequency Sink as eye candy, and notice that its display > is about 6dB different than the Log Power FFT output. I can think of a > number of reasons why that could be, but my simple question is... is there > an approp

Re: [Discuss-gnuradio] Time sinks out of sync after adding and removing noise in simple FSK simulation

On Thu, Sep 14, 2017 at 12:08 AM, James Wanga wrote: > I recently decided to simulate an FSK modulation scheme with a constant > source, a noice source and 2 time sinks. The first time sink is > pre-modulation and the second is post-modulation. When I first start the > simulation, both time sinks

Re: [Discuss-gnuradio] GRCON2017

On Mon, Sep 18, 2017 at 7:01 PM, Ben Hilburn wrote: > Presentations are now live: https://www.youtube.com/channel/ > UCceoapZVEDCQ4s8y16M7Fng > > There are some missing, but we'll get them up as soon as we get them. Same > with the talk recordings, which will get posted to our YouTube channel. >

Re: [Discuss-gnuradio] Python Tutorial for MAC OS 10.12

On Sun, Sep 24, 2017 at 10:00 AM, Luis Felipe Albarracin Sanchez < lfasanc...@gmail.com> wrote: > i started from scratch the Tutorial, and i placed all blocks according > to the Tutorial. After that i clicked on "generate the flowgraph". Once i > did this in the folder where the GRC is saved Py

Re: [Discuss-gnuradio] Analyzing an Arbitrary Length Sequence in a Python Block

On Sun, Oct 15, 2017 at 10:59 PM, Gilad Beeri (ApolloShield) < gi...@apolloshield.com> wrote: > I'm writing a Python block that, in general, does the following: > Input: a stream of numbers (assume integers for the sake of discussion). > Output: a stream of numbers > … > Note: The sequences can b

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

o/2012-04/msg00318.html Does this issue still persist? or known? -- Regards Kevin 151/213 Testing: qa_constellation_receiver 151/213 Test: qa_constellation_receiver Command: "/bin/sh" "/tmp/workarea-gnuradio/gnuradio/build/gr-digital/python/digital/qa_constellation_receiver_tes

Re: [Discuss-gnuradio] Just wondering why?

On Wed, Nov 1, 2017 at 9:23 PM, Cinaed Simson wrote: > >> Not a problem for me most of my testing is done with my test set, the > RF gain > >> set at 14 dB means I can receive signals down to -115 dBm, I tend to use > >> signals at around -80 dBm so I am far away from the -5 dBm maximum for > the

Re: [Discuss-gnuradio] nlog10: do we consider "normalizes log10(x <= 0) to -18" as API?

On Mon, Nov 20, 2017 at 7:52 AM, Marcus Müller wrote: > I was about to commit a PR VOLKizing nlog10 [1], but it struck me that > my processor (imho, correctly) says that log(0) == nan and log(-10) == > nan. > > Whereas the old nlog10 test case asserts that it's log_10(x<=0) == -18. > > So, am I a

  1   2   3   >