Re: GnuRadio4 build on msys2 / ucrt64

2025-04-21 Thread John Sallay
I think it would be great to submit issues and PRs for windows. I don't believe that we have any test infrastructure set up for Windows, but it will be less painful to get it working the sooner we address these issues. On Mon, Apr 21, 2025, 4:41 PM Chris Gorman wrote: > Hello All, > > I just spe

Open Position at AnySignal: Space RF Electronics Engineer

2024-12-16 Thread John Malsbury
technical leverage, you’ll help field innovations at a rate *unseen in the industry*. For more details, check out the job posting here <https://jobs.lever.co/anysignal/62289443-f27e-4196-addd-3f53f8e7b0ea>, or feel free to message me directly. Best regards, *John Malsbury* CEO | AnySignal

Re: Rational resample before FFT, and FFT rate

2024-04-30 Thread John Ackermann N8UR
ector sink,. It's getting late here so let me experiment more tomorrow and get back with some results. Thanks! John

Re: Rational resample before FFT, and FFT rate

2024-04-30 Thread John Ackermann N8UR
ll end up with something like one frame per 10 seconds, but before I can play with that I need to understand what is wrong with my processing to get the amplitude of the maximum bin per frame. John

Re: Rational resample before FFT, and FFT rate

2024-04-29 Thread John Ackermann N8UR
articular, am I doing something wrong with the stream and vector conversions around the FFT and MAX blocks? Thanks, John On 4/29/24 19:06, Gary Schafer wrote: It sounds to me as if you're trying to move the signal to the center of a FFT bin so that you don't have to deal with

Rational resample before FFT, and FFT rate

2024-04-28 Thread John Ackermann N8UR
about once per second. Am I doing something wrong that the maximum value doesn't update with each new vector? Thanks, John drf_get_max_pwr.pdf Description: Adobe PDF document

Re: Strategies to save/display low sample-rate data

2024-04-10 Thread John Ackermann N8UR
#x27;t throttle and when set to false it does. Go figure. Thanks to Franco for pointing me toward the alternative block! John

Re: Strategies to save/display low sample-rate data

2024-04-10 Thread John Ackermann N8UR
On 4/10/24 11:29, Fons Adriaensen wrote: Both the decimation and 80 size 1024 FFTs per second should be peanuts for any modern PC... And of course you don't need to do the FFT again for every sample, it just generates a lot of redundant data. I understood that if you have a 1024 bin waterfall

Strategies to save/display low sample-rate data

2024-04-10 Thread John Ackermann N8UR
locks would be used to read/write that data? Are there other tricks for selecting a very narrow chunk of a wide bandwidth signal to display at higher resolution at better speed? Thanks! John

forecast() function usage with static addition of bits

2024-01-25 Thread John Moon
output being forecasted. I'm relatively new to GR, so apologies for any blatant misunderstandings and thank you so much for your time! - John

AnySignal SDR Gathering(s)

2023-10-16 Thread John Malsbury
bc8> - Of course, I can't post to the list without the hiring plug. We need more engineers across all disciplines, and bus dev/sales. If you do a thing you don't see here just message me: https://jobs.lever.co/anysignal . Cheers, John CEO | AnySignal [image: image.png]

Re: gr-adsb

2023-07-03 Thread John Sallay
I've used this package recently and it would not be trivial to convert from rx to tx. With that said, ADS-B is a pretty simple signal, I don't think it would be a monumental effort to do it. You would need to write the reverse of the decoder block that would create ADS-B messages from your input

Re: How to force the decimation to schedule at least 16 output samples

2023-03-15 Thread John Sallay
lways receive at least 16 samples and that the number of samples is a multiple of 16. It's not the best solution but it gets the job done. John On Wed, Mar 15, 2023 at 12:37 PM Jeff Long wrote: > The function is there. Perhaps you're not calling it correctly, but I > can'

Re: Installation of Gnuradio on Windows 11

2023-02-06 Thread John Sallay
Ryan has done a great job maintaining Windows support in conda. I'll throw out that if you prefer, you can use the Windows subsystem for Linux to run Linux based docker containers. On Mon, Feb 6, 2023, 2:03 PM Ryan Volz wrote: > Hi George, > > The conda installation method and radioconda should

Hiring @ AnySignal

2022-09-28 Thread John Malsbury
content is limited right now (not a priority), but happy to share more once we connect. Cheers, John Malsbury | AnySignal

Re: Determining peak instantaneous power in waveform

2022-05-18 Thread John Ackermann N8UR
Hi Ron -- Your papr.c program looks like it will do just what I want. I'll grab it. Thanks again for the help you provide! John On 5/18/22 00:23, Ron Economos wrote: I have a block that may be useful for you. It just prints the peak IQ level. It's usually placed just before

Determining peak instantaneous power in waveform

2022-05-17 Thread John Ackermann N8UR
the peak instantaneous power seen in the file, relative to 100% (ie, I don't need calibrated numbers, just to know how to set the gain in Gnuradio for undistorted playback). Thanks! John

Re: Realtime Kernel, UHD 4.0, GNURadio

2022-05-05 Thread John Sallay
I have found that using chrt can make a big difference with USRP performance.When using rx hardware I will run my flowgraph with chrt -f 99 python3 my_flowgraph.py. Even when I run the ettus provided benchmarks, I have found that I will eventually drop data without realtime priority. If you ar

Re: VOLK C++ core

2021-12-21 Thread John Sallay
If nothing else I think there is a lot of value in adding c++ wrappers to volk. I don't have a strong opinion on an underlying base of c or c++, but would like for it to be easier to use in c++. A common approach with other c libraries like zeromq is to make a header only c++ wrapper. This would ta

Re: Undefined symbol _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES5_

2021-11-10 Thread John Coppens
On Wed, 10 Nov 2021 09:47:42 +0200 Vasil Velichkov wrote: > So most probably your OOT has been built with an older pmt.h from > gnuradio 3.7.*. To find where pmt.h has been included from go in the > gr-osmosdr's build directory and grep pmt.h recursively > > grep -R pmt.h . > > You can als

Re: Undefined symbol _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES5_

2021-11-09 Thread John Coppens
Hi Vasil. Thanks for replying! Below are the outputs of the commands you proposed. As you can see from the 'find', there is only one libgnuradio-runtime installed. Also, the 'ldd' on osmosdr seems to confirm the missing symbols, and everything is linked against the same libgnuradio-runtime.so.

Re: Undefined symbol _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES5_

2021-11-09 Thread John Coppens
On Mon, 8 Nov 2021 16:28:30 +0100 Marcus Müller wrote: > Hi John, > > as discussed on chat: this happens if, and only if, you're linking at > build time to a different library than your runtime shared library > loader finds. > > The fix is simple: make sure you'v

Undefined symbol _ZN2gr12msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEES5_

2021-11-04 Thread John Coppens
r problem seems to be the only remaining issue. Can anyone indicate me where to search? John

qt waterfall sink time axis

2021-07-02 Thread John Murphy
waterfall which I see now. I'd expect that this is an oft-used block. So I am hoping that asking maybe someone knows how to do this. Thanks folks. John

flowgraph ret -11 when oot block calls gr::filter::firdes::low_pass_2

2021-06-26 Thread John Murphy
Tom's old example. If I comment out both versions of trying to call firdes to generate taps, then it prints all the goodies and the flowgraph runs fine. I must be doing something wrong at a basic level here. Any ideas? Thanks. John

Re: Getting OOT's to run in GRC

2021-06-14 Thread John Murphy
wrote: > Hi John, > > On 13/06/2021 14.34, John Murphy wrote: > > The blocks pull in > > gr-fft and (for the lfsr stuff) gr-digital. There is a source block, a > > general block, and a couple noblock utility classes in the custom OOT > > module. > > But when I

Getting OOT's to run in GRC

2021-06-13 Thread John Murphy
t this to work in Manjaro (current with linux 5.10.something), but if that can't be done then getting it to work in Ubuntu LTS (20.04 or if an older LTS version works better let me know) will have to do. Would someone give me some ideas to try? Many thanks, John

Re: Job Opportunities at SpaceX

2021-04-16 Thread John Malsbury
https://www.washingtonpost.com/technology/2021/04/16/nasa-lunar-lander-contract-spacex/ https://i.kym-cdn.com/photos/images/original/000/353/279/e31.jpg On Wed, Apr 14, 2021 at 10:32 AM John Malsbury wrote: > Greetings all, > > I wanted to share an exciting job post from SpaceX

Job Opportunities at SpaceX

2021-04-14 Thread John Malsbury
follow up ASAP as I’m pushing hard to get these positions filled quickly. -John

PMT thoughts

2021-03-25 Thread John Sallay
deprecate, but maintain the current functions for dealing with PMTs. I believe that these changes could be made without breaking existing code. To be clear, I haven't implemented any of this. My goal right now is just to see if there is interest in doing something like this. If there is, I am happy to look into it and try to create a proof of concept. I'm also open to suggestions and feedback. Thanks, John

Re: More on IQ modulation

2021-02-22 Thread John Byrne
. But you're saying it doesn't. Have I completely misunderstood how down-mixing works? Sorry if these are silly questions. On Mon, 22 Feb 2021, at 5:21 PM, Christophe Seguinot wrote: > Hi > Some rapid answers inside the original email > Christophe > On 22/02/2021 19:48,

More on IQ modulation

2021-02-22 Thread John Byrne
n the Rx will be identical to each other, except for a phase difference right? And we need to combine them to get the full power? Thanks John

Re: finding my cell phone signal in the spectrum

2021-02-18 Thread John Byrne
1Mhz to 6Ghz. Don't know why I couldn't see it before! On Thu, 18 Feb 2021, at 12:36 PM, Christophe Seguinot wrote: > 564 is an ARFCN > see https://en.wikipedia.org/wiki/Absolute_radio-frequency_channel_number > to calculate Downlink (Mobile ->network) frequency FDL > O

Re: finding my cell phone signal in the spectrum

2021-02-18 Thread John Byrne
o find the uplink freq for a given channel other than by using that calculator, but I'll figure it out eventually. Thanks for all the help everyone :) -John On Thu, 18 Feb 2021, at 11:26 AM, John Byrne wrote: > > Thanks for the input everyone, that has been very helpful. > &g

Re: finding my cell phone signal in the spectrum

2021-02-18 Thread John Byrne
> > Gqrx is good to look at the spectrum and also gr-gsm to sniff packets over > 2G-3G networks. I see TMobile still has 2G <>=1990mhzand all you need is a > good receiver. > > There's plenty of stuff online to research for. Good luck. > > On Thu,

finding my cell phone signal in the spectrum

2021-02-18 Thread John Byrne
ecause it's proving so tricky. Is it reasonably to expect to find this? Or is there some kind of frequency hopping that makes it impossible to see? Any suggestions for how to go about it? Thanks! -John

Logging not working in OOT module

2020-06-02 Thread John Langworthy
Hi, On my ubuntu desktop installation using GR 3.8.1.0, my OOT module happily sends its log output to the python console. Perfect. My embedded ubuntu server installation, also GR 3.8.1.0, does not send log output to the console. Messages disappear, somewhere, and I do rather need them. Both were bu

Thank You and Congrats

2020-05-30 Thread John Malsbury
Just wanted to say “thank you” and “congrats” The cumulative intellect and work products of this community were seen in action by lots of people today (more than ever I think) - whether they realize it or not. :) Ben, I realize that I probably misused a hyphen there.

RE: Building gnuradio and hooking into neonv8

2020-05-30 Thread John Langworthy
rdfp_native.cmake ../Give it a try and post your cmake result.Also, you should install orc. Some kernels can be faster with orc.sudo apt-get install liborc-0.4-devRonOn 5/30/20 03:06, John Langworthy wrote:Hi,  I am trying to build gnuradio 3.8.10 on a raspberry pi 4 under 64 bit ubuntu server. I am u

RE: Building gnuradio and hooking into neonv8

2020-05-30 Thread John Langworthy
irst.cmake -DCMAKE_TOOLCHAIN_FILE=../volk/cmake/Toolchains/arm_cortex_a72_hardfp_native.cmake ../Give it a try and post your cmake result.Also, you should install orc. Some kernels can be faster with orc.sudo apt-get install liborc-0.4-devRonOn 5/30/20 03:06, John Langworthy wrote:Hi,  I am trying to buil

Building gnuradio and hooking into neonv8

2020-05-30 Thread John Langworthy
Hi,  I am trying to build gnuradio 3.8.10 on a raspberry pi 4 under 64 bit ubuntu server. I am unconvinced from the cmake output that it is going to plan. I know I could cross-compile, I’ll do that later.  Environment:gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0Linux raspberry 5.3.0-1026-raspi2 #

Finding performance issues

2020-05-26 Thread John Langworthy
headroom is left? Thanks  John

BER Calculations with QPSK Modulation and USRP

2020-03-05 Thread John Bauer
a file sink to compare bit error rates of the transmitted data. However, it seems like the data is being shifted and I am unable to make sense of the received data. What changes must be made to perform the BER calculations? Thanks for your help, John

Re: Lunar Orbiting Platform Gateway

2019-10-30 Thread John Malsbury
der strong consideration. > > Please feel free to respond directly if additional information is needed > and I’ll strive to assist. > > Kevin > -- > *From:* Discuss-gnuradio colorado@gnu.org> on behalf of John Malsbury < > jmalsbury.perso.

Re: Lunar Orbiting Platform Gateway

2019-10-30 Thread John Malsbury
It was a cheap joke on my part (and not at all commentary on the gateway concept). Disregard. I'd be down to collaborate on something open source. Could you point to publicly available documents that summarize the standards/specs? -John On Wed, Oct 30, 2019 at 8:50 AM Michelle Tho

Re: Lunar Orbiting Platform Gateway

2019-10-29 Thread John Malsbury
Definitely not On Tue, Oct 29, 2019 at 3:59 PM Michelle Thompson < mountain.miche...@gmail.com> wrote: > Anyone working on blocks specifically for Lunar Orbiting Platform Gateway? > Or interested in doing so? > > -Michelle W5NYV > -- > -Michelle W5NYV > > "Potestatem obscuri lateris nescis." > >

[Discuss-gnuradio] Looking for DSP/FIRMWARE Engineers

2019-08-24 Thread John Malsbury
Cool space stuff. If interested, send resume to john.malsb...@spacex.com ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Discuss-gnuradio Digest, Vol 201, Issue 22

2019-07-18 Thread John Mikulskis
't want to pass in 10 different int values. Is the best fix to this problem to pass the parameter as a string and convert it into an int array in the block, or does anyone know a cleaner way to fix this problem? Thank you, John On Thu, Jul 18, 2019 at 12:00 PM wrote: > Send Discuss-gnu

Re: [Discuss-gnuradio] Tuning in VLF with a sound card

2019-05-15 Thread John Coppens
the antenna (no need for a supply). The op-amp amplifier would cover a larger bandwidth. (it would also offer some protection for your computer). John ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] RPi Filesystem Image

2019-05-08 Thread John Ackermann N8UR
There is some magic involved in shrinking a RPi image so that it will then expand when reinstalled, like the original Raspbian. I went through the pain a while ago and documented it here: https://blog.febo.com/?p=283 John On 5/8/19 12:45 PM, Philip Balister wrote: > On 05/08/2019 12:09

Re: [Discuss-gnuradio] Capturing maximum complex value

2019-03-17 Thread John Ackermann N8UR
That's great! Thanks, Ron! On 3/17/19 3:30 PM, Ron Economos wrote: I have a block that does what you need. https://github.com/drmpeg/gr-iqlevels Ron On 3/17/19 08:09, John Ackermann N8UR wrote: I'm working on a flowgraph that generates an output waveform about 375 kHz wide with

Re: [Discuss-gnuradio] Capturing maximum complex value

2019-03-17 Thread John Ackermann N8UR
On 3/17/19 3:45 PM, Kevin Reid wrote: If you want to detect clipping, you want to know if the magnitude of any sample is greater than 1.0 — that's all there is to it. No FFT. My code happens to divide the stream into vectors but that is the only similarity. Performing a FFT will not help you

Re: [Discuss-gnuradio] Capturing maximum complex value

2019-03-17 Thread John Ackermann N8UR
On 3/17/19 3:01 PM, Kevin Reid wrote: One of the AGC blocks that has separate attack and decay rates (agc2_cc or agc3_cc) could be used to do this: set attack to 1, decay to 0, ignore the output, and read (1.0 / agc.gain()) to find the peak-hold magnitude. In my own application, I am using t

Re: [Discuss-gnuradio] Capturing maximum complex value

2019-03-17 Thread John Ackermann N8UR
On 3/17/19 12:55 PM, Marcus D. Leech wrote: On 03/17/2019 11:09 AM, John Ackermann N8UR wrote: I'm working on a flowgraph that generates an output waveform about 375 kHz wide with very high peak-to-average power -- at least 20 dB.  This is sent into a USRP1 with BasicTX board to genera

[Discuss-gnuradio] Capturing maximum complex value

2019-03-17 Thread John Ackermann N8UR
the distortion likely caused by the complex output being driven into digital clipping when enough vectors add up, or is this a function of the analog conversion in the USRP? i.e., is the problem likely to be on the input or output side of the DAC?

Re: [Discuss-gnuradio] GNU RADIO on Ubuntu Server

2019-03-04 Thread john
I have run a python based gnuradio application on Odroid C2 and recently XU4.  It will come done to what you are trying to do (amount of sample rate you require and what kind of processing you are doing).   Also, I just recently heard about and used volk_profile.  This helped me with performanc

Re: [Discuss-gnuradio] build-gnuradio.sh and Linux Mint 19

2018-10-29 Thread John Ackermann. N8UR
>compiling. > >On Mon, Oct 29, 2018 at 2:56 PM Ron Economos wrote: > >> It's probably checking out the wrong version of GNU Radio and/or >VOLK. >> These days, you need to checkout the maint-3.7 branch and do a >submodule >> update. >> >> git

Re: [Discuss-gnuradio] build-gnuradio.sh and Linux Mint 19

2018-10-29 Thread John Ackermann N8UR
arget 'gr-fec/lib/CMakeFiles/gnuradio-fec.dir/all' failed make[1]: *** [gr-fec/lib/CMakeFiles/gnuradio-fec.dir/all] Error 2 Makefile:162: recipe for target 'all' failed make: *** [all] Error 2 make failed Exiting Gnu Radio build/install This one is beyond my ability to di

Re: [Discuss-gnuradio] build-gnuradio.sh and Linux Mint 19

2018-10-29 Thread John Ackermann N8UR
you there directly. I'm now rerunning the script. BTW, this install is on a fresh Mint 19 with no development stuff pre-installed, so there shouldn't be anything weird in my setup. John On 10/29/18 1:28 PM, Marcus D. Leech wrote: On 10/29/2018 11:18 AM, John Ackermann N8UR wro

Re: [Discuss-gnuradio] build-gnuradio.sh and Linux Mint 19

2018-10-29 Thread John Ackermann N8UR
Well, this was unexpected... I got a failure in the UHD build phase: UHD build apparently failed Exiting UHD build I just re-ran with logging turned on; the results are in the attached build-gnuradio.log.gz file. On 10/29/18 10:59 AM, John Ackermann N8UR wrote: Hi Marcus -- I did as James

Re: [Discuss-gnuradio] build-gnuradio.sh and Linux Mint 19

2018-10-29 Thread John Ackermann N8UR
Well, this was unexpected... I got a failure in the UHD build phase: UHD build apparently failed Exiting UHD build I just re-ran with logging turned on; the results are in the attached build-gnuradio.log.gz file. On 10/29/18 10:59 AM, John Ackermann N8UR wrote: Hi Marcus -- I did as James

Re: [Discuss-gnuradio] build-gnuradio.sh and Linux Mint 19

2018-10-29 Thread John Ackermann N8UR
sense of it all. The script is still building UHD. I'll report back whether it successfully finishes. John On 10/29/18 10:42 AM, Marcus D. Leech wrote: On 10/29/2018 10:17 AM, Neel Pandeya wrote: Hello John: It looks like support for Linux Mint 19 has not yet been added. See l

Re: [Discuss-gnuradio] build-gnuradio.sh and Linux Mint 19

2018-10-29 Thread John Ackermann N8UR
Thanks, Neel! However, I just downloaded the version on github and it fails with the same error; the page indicates that the last mods were 11 months ago, which predates Mint 19. John On 10/29/18 10:07 AM, Neel Pandeya wrote: The "build-gnuradio" script is now being mai

[Discuss-gnuradio] build-gnuradio.sh and Linux Mint 19

2018-10-29 Thread John Ackermann N8UR
y with v19? Or is sbrac.org no longer the place to find the current version of the script? Thanks, John ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] QT GUI Entry Block issue

2018-07-13 Thread John Makous
Ok, thanks for the heads up! John On Fri, Jul 13, 2018 at 1:48 PM, Müller, Marcus (CEL) wrote: > Hi John, > > thanks for the info! > Please don't install 3.7.12, but directly go for the most recent > release 3.7.13.3 > > Best regards, > Marcus > > On Fri, 201

[Discuss-gnuradio] QT GUI Entry Block issue

2018-07-13 Thread John Makous
that it installs. John Makous ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] GNURadio master and UHD RFNOC Version Issue

2018-07-12 Thread John Medrano
software? Thanks, John On Fri, May 25, 2018 at 7:41 AM, Derek Kozel wrote: > Hello John, > > I'm looking at this right now and can confirm that the head of rfnoc-devel > is compatible with the latest GNU Radio. Can you please try rerunning cmake > on UHD with -DRFNOC_ENABLE=t

Re: [Discuss-gnuradio] QT GUI Entry block issue

2018-07-12 Thread John Makous
My OS is Ubuntu 18.04 LTS, and I am using Python 2.7.15. On Thu, Jul 12, 2018 at 11:39 AM, Marcus D. Leech wrote: > On 07/12/2018 10:18 AM, John Makous wrote: > >> I am trying to use the QT GUI Entry block to change variables while a >> program is running. However, I have disc

[Discuss-gnuradio] QT GUI Entry Block issue

2018-07-12 Thread John Makous
able to run the test file I created and change the frequency without the system crashing, and the frequency changed as expected. I am wondering if this is all there is to this problem, or if there is something deeper going on. Would this fix work universally for everyone? John

[Discuss-gnuradio] QT GUI Entry block issue

2018-07-12 Thread John Makous
while the program is running will cause a crash. Anyone familiar with this problem? Thanks! John Makous QTGUI_EntryBLock_test.grc Description: application/gnuradio-grc ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mail

Re: [Discuss-gnuradio] GNURadio Help

2018-06-13 Thread John Medrano
chine (I use the USRP E310 board) to display the > data. > In fact, it should be such a broadband spectrum analyzer not in real time. > > 2018-06-13 17:57 GMT+03:00 John Medrano : > >> Hello. >> >> If I understand what you are saying correctly, you would like to proc

Re: [Discuss-gnuradio] GNURadio Help

2018-06-13 Thread John Medrano
hem to > the buffer. And so up to 6GHz. Then when the buffer is full, I transfer > the data to the host machine (I use the USRP E310 board) to display the > data. > In fact, it should be such a broadband spectrum analyzer not in real time. > > 2018-06-13 17:57 GMT+03:00 John Medrano

Re: [Discuss-gnuradio] GNURadio Help

2018-06-13 Thread John Medrano
Hello. If I understand what you are saying correctly, you would like to process wide band data. And you mention 70 MHz to 6 GHz. Even with RFNOC there is a limitation on the amount of data you can process simultaneously, and that is about 200 MHz. There is no way possible to simultaneously proces

Re: [Discuss-gnuradio] Custom block not showing up in gnuradio-companion blocks list (but ok in Linux)

2018-06-02 Thread John Medrano
You need to check directory " /opt/local/share/gnuradio/grc/blocks" to see if your xml file is present. If it is not, then look at output from "sudo make install" to see if file is being installed or updated. >From what it looks like, given that it works in on previous and other platforms. I susp

Re: [Discuss-gnuradio] qa test failed!

2018-05-28 Thread John Medrano
Your line: self.tb.connect(detec. dst) Should be: self.tb.connect(detec, dst) You have period instead of comma. On Mon, May 28, 2018 at 3:55 PM, Linda20071 wrote: > I created a module named detector0 with one input argument: int len. In > the python qa file, I set the len to 20. However, whe

Re: [Discuss-gnuradio] GNURadio master and UHD RFNOC Version Issue

2018-05-25 Thread John Medrano
help me to look back at and see which GNU Radio versions are compatible with the rfnoc-devel branch. Thank you again. On Fri, May 25, 2018 at 6:46 AM, Müller, Marcus (CEL) wrote: > Hi John, > On Fri, 2018-05-25 at 06:39 -0600, John Medrano wrote: > > Thank you for the response. >

Re: [Discuss-gnuradio] GNURadio master and UHD RFNOC Version Issue

2018-05-25 Thread John Medrano
, Müller, Marcus (CEL) wrote: > Hi John, > GNU Radio versioning is totally independent from UHD versioning, and > that's what's defining the compatibility with the FPGA image. > So, you need to install the UHD that fits your FPGA image (or use an > FPGA image that fits your

[Discuss-gnuradio] GNURadio master and UHD RFNOC Version Issue

2018-05-24 Thread John Medrano
Fedora 28? Please advise, Thank you, John ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] How do I interface my X310 with an NVIDIA K80 GPU in GNURadio

2018-05-02 Thread John Ferguson
related to the recording question. I hope that helped. John On Wed, May 2, 2018 at 10:32 AM, Eads, LJ D. wrote: > Derek, > > > > Oops! The error was actually from just a simple WBFM Receiver block which > has the audio sink. No soundcard involved in my setup. > > I

[Discuss-gnuradio] High Pass and Low Pass performance not inverse

2018-03-13 Thread John Ackermann N8UR
ar windows because I want to get the actual noise power for the given bandwidth.) Any thoughts on why this is happening, or on ways to make the two responses more precisely mirror each other? Thanks, John ___ Discuss-gnuradio mailing list Discus

Re: [Discuss-gnuradio] Rounding values in QT Number

2018-03-07 Thread John Ackermann N8UR
so this patch is fixed at two places, but at least it shows what needs to change to work. (I'm also not sure if this broke things for an integer rather than float input.) John On 03/06/2018 10:41 AM, John Ackermann N8UR wrote: I must now reflect and ponder to wisely choose my pat

Re: [Discuss-gnuradio] Rounding values in QT Number

2018-03-06 Thread John Ackermann N8UR
Well, good news on one front. I just built gnuradio from github on a fresh Linux Mint 18.3 install and the osmocom/rtlsdr stuff seems to work fine. So whatever problem was there has now been cleaned up. Thanks to whoever was responsible for that! Now on to patching QT Number sink... John

Re: [Discuss-gnuradio] Rounding values in QT Number

2018-03-06 Thread John Ackermann N8UR
osmosdr list at the time reporting the issue, but never got any indication that it was addressed. So I am reluctant to go that way unless I'm sure that whatever happened has been corrected. I suppose I really should set up another machine and test build-gnuradio on it. John On 03/06

Re: [Discuss-gnuradio] Rounding values in QT Number

2018-03-06 Thread John Ackermann N8UR
an existing GRC block and convert it to an OOT module? I'd be happy to do that but don't know how to go about it. Thanks, John On 03/06/2018 08:47 AM, Müller, Marcus (CEL) wrote: Hi John, there's no dumb questions, maybe badly researched ones, and you definitely don&#

[Discuss-gnuradio] Rounding values in QT Number

2018-03-05 Thread John Ackermann N8UR
hey're just now set to zero. Is there any trick to round or even just truncate the number of decimal places shown in the QT Number Sink? Thanks, John ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Lost samples from RTL2832 dongle

2018-01-23 Thread john cooper
Thanks! Really appreciated. John On Tue, 23 Jan 2018, 12:57 Müller, Marcus (CEL), wrote: > You'll find instructions at > https://osmocom.org/projects/sdr/wiki/rtl-sdr#rtl_tcp > > On Tue, 2018-01-23 at 12:50 +, john cooper wrote: > > Hello Marcus, good idea, I will r

[Discuss-gnuradio] Lost samples from RTL2832 dongle

2018-01-23 Thread john cooper
advance. John <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=w

Re: [Discuss-gnuradio] Write WAV file in integer format?

2018-01-08 Thread John Ackermann N8UR
at worked just fine. Without the multiplication, I think the very low level (-100 dB range) stuff was lost in the conversion. John On 01/07/2018 06:19 PM, Andy Walls wrote: From: John Ackermann N8UR Date: Sun, 7 Jan 2018 16:59:32 -0500 I need to output IQ data from a Gnuradio script i

[Discuss-gnuradio] Write WAV file in integer format?

2018-01-07 Thread John Ackermann N8UR
quot; but Google isn't helping me find it. Thanks, John ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] cant see any signals with limesdr on osmocom source

2017-12-13 Thread John Shields
ersus the other?     Kind Regards, John On 13/12/17 08:18, ogün levent wrote: Hi there I am trying to use limesdr with gnuradio on ubuntu 16.04 When I use osmocom_fft tool from the cli eveything seems ok but when i switch back to gnuradio and connected osmocom sourc

Re: [Discuss-gnuradio] PFB mapping: M < N?

2017-12-07 Thread John Ackermann N8UR
Thanks, Michael. It's always reassuring to find out "it's not me..." Although I don't currently need the M < N capability (I was mainly trying to make sure I understood the docs), I'd like to get your blocks if you don't mind. Thanks! John On 12/0

[Discuss-gnuradio] PFB mapping: M < N?

2017-12-04 Thread John Ackermann N8UR
want map less than N elements? There seems to be no benefit to doing so. Is this documentation contradictory, or confusing, or am I missing something? Thanks, John From https://gnuradio.org/doc/sphinx-3.7.0/filter/channelizers_blk.html: " The map should have the same number of elements

Re: [Discuss-gnuradio] Capturing channel power at desired rate

2017-12-02 Thread John Ackermann N8UR
In experimenting, I discovered that I needed to add a log10 block at the output of the complex-to-mag^2 block. With that put in, I'm getting what seem to be quite solid results, and avoiding some of the issues that the max-from-fft approach might suffer. John On 12/01/2017 03:

[Discuss-gnuradio] Capturing channel power at desired rate

2017-12-01 Thread John Ackermann N8UR
_samples" parameter is set to 0, I don't want that file to be created at all; if it's 1, then the file should be created and data dumped to it. If this isn't the right way to accomplish that, I'd appreciate suggestions. (This will be set at the beginning of the run, and

Re: [Discuss-gnuradio] FFT size constraints?

2017-12-01 Thread John Ackermann N8UR
Thanks, Sylvain! On 12/01/2017 11:19 AM, Sylvain Munaut wrote: By convention, FFT sizes seem to be powers of 2. And Gnu Radio Companion throws an error if you try to set a size of 16384 -- but will accept 16383. Probably related to the size of the buffers or something like that. Is using a

Re: [Discuss-gnuradio] FFT size constraints?

2017-12-01 Thread John Ackermann N8UR
Attached is a screenshot of the error I get when trying to set the FFT size in the QT Frequency Sink to 16384. It's possible, I suppose, that it could be the sink block, and not the FFT itself, that poses the limitation. John On 12/01/2017 12:02 PM, Müller, Marcus (CEL) wrote: What

Re: [Discuss-gnuradio] FFT size constraints?

2017-12-01 Thread John Ackermann N8UR
Thanks! The mailing list seems to have been clogged up overnight, so after posting I did some experiments and found that an FFT of 100 bins to match 100 samples/second worked just fine and gives me exactly what I want -- nicely spaced results at 1 second intervals. On 12/01/2017 11:19 AM, Syl

[Discuss-gnuradio] FFT size constraints?

2017-12-01 Thread John Ackermann N8UR
itation as ">8192" rather than "<16384". Thanks, John ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Rounding errors in PFB channelizer?

2017-12-01 Thread John Ackermann N8UR
ling filter response that might have ripple and aliases. Thanks for that suggestion, Marcus! I have the resampler version running right now but will change to use the channel count idea instead. John ___ Discuss-gnuradio mailing list Discuss-gn

Re: [Discuss-gnuradio] Rounding errors in PFB channelizer?

2017-11-29 Thread John Ackermann N8UR
And the resampler did the trick.  Carriers are now nicely aligned.  Thanks again! On Nov 29, 2017, 4:48 PM, at 4:48 PM, John Ackermann N8UR wrote: >Hi Marcus -- > >First, thanks for catching the typo in the channel map. There was no >plan to skip any channels; the goal is to get

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