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

On Tue, May 7, 2019 at 4:19 PM Marcus D. Leech wrote: > On 05/07/2019 04:05 PM, Ben Hilburn wrote: > > Hey Brad - just checking in! This is an interesting experiment, and I > would love to hear how it went! > > Big thanks to Kevin and JMF for providing very helpful guidance, here, too > =) > >

Re: [Discuss-gnuradio] Installing GNURadio On Raspberry Pi

Glen, Beautiful job.  Very impressive. It may be that using Raspbian not Ubuntu is my problem. It would be interesting to know if other have success with Raspbian. Thanks, Pete On 5/7/2019 5:44 PM, Glen I Langston wrote: Hi We’ve put our event detection on three Raspberry Pi 3B + for

Re: [Discuss-gnuradio] Installing GNURadio On Raspberry Pi

Ben, I am sorry if I came across as cynical and sarcastic.  I didn't mean to.  I really wanted to know if anyone could make GNURadio work on a RPi. I'll be the first to say I know nothing about Linux and Python. However, I created the flow graph I need on my windows computer months ago and

Re: [Discuss-gnuradio] Audio source cannot use 2 outputs (Stereo) in windows

Yes all sorted. What I wanted to do was simple. To have two stereo actually IQ inputs and a single 4 channel output Now I have MAP65 working with adaptive phasing using the SDRPlay Uno software with and RSP Duo SDR.Brilliant. Portaudio solved the problem. Marcus stuck with me to get it working. I

Re: [Discuss-gnuradio] Data loss during transmission (OFDM .bmp file)

Hi Ben, I am trying to transmit an image using USRP Tx/RX by implementing OFDM in GNU Radio. I am losing one offset of 96 bytes. I am suspecting there is problem with my synchronization which is not detecting that offset (packet_len = 96 bytes) or probably discarding it. I also tried inserting

Re: [Discuss-gnuradio] FEC Examples with Modulators

Hi Ben, I have looked at them, I recreated the fecapi_tagged_decoders example and switched to file source and file sink to send Hello World. I got that working today. I then tried to add OFDM TX --> OFDM RX (see attached grc flow diagram), but can't get a balance between encoder frame size and

Re: [Discuss-gnuradio] Installing GNURadio On Raspberry Pi

On 05/07/2019 04:20 PM, Ben Hilburn wrote: Hi Pete - Yes, I personally know of multiple. Albin's work of implementing volk kernels for TujaSDR , shared here on the list with some regularity, is an excellent example. On Wed, May 1, 2019 at 5:32 PM P C

Re: [Discuss-gnuradio] Installing GNURadio On Raspberry Pi

Hi Pete - Yes, I personally know of multiple. Albin's work of implementing volk kernels for TujaSDR , shared here on the list with some regularity, is an excellent example. On Wed, May 1, 2019 at 5:32 PM P C wrote: > Problem Solved! .NOT! > Tell me, is anyone running

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

On 05/07/2019 04:05 PM, Ben Hilburn wrote: Hey Brad - just checking in! This is an interesting experiment, and I would love to hear how it went! Big thanks to Kevin and JMF for providing very helpful guidance, here, too =) Cheers, Ben I should perhaps have entered this discussion earlier,

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

Yes I am very eager and hankful for the suggestions. Trying to make time to build out the flow graph and give it a go. Hopefully tonight! [Sent from mobile device] On Tue, May 7, 2019, 4:06 PM Ben Hilburn Hey Brad - just checking in! This is an interesting experiment, and I > would love to hear

Re: [Discuss-gnuradio] Recurring memory leak problems with iterative decoding [ GNU Radio 3.7.11.1]

Hey Moses - This is really cool work! Thanks so much for sharing it. Michael's suggestion of pushing it was a good one. I haven't looked at the code yet, but: The code was able to run smoothly in a C++ application but experienced > memory leaks in GNU Radio. > I'm curious how confident you are

[Discuss-gnuradio] PhD Position in Wireless Communication Systems

Apologies if you receive multiple copies of this posting?! There are openings for highly motivated and energetic MSc/PhD students to work in my research group. The ideal candidate must have a strong mathematical background, very good knowledge of wireless communication systems, and good

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

Hey Brad - just checking in! This is an interesting experiment, and I would love to hear how it went! Big thanks to Kevin and JMF for providing very helpful guidance, here, too =) Cheers, Ben On Thu, May 2, 2019 at 7:12 PM Kevin Reid wrote: > On Thu, May 2, 2019 at 1:22 PM Brad Hein wrote: >

Re: [Discuss-gnuradio] Audio source cannot use 2 outputs (Stereo) in windows

Sounds like you got your issue resolved, Gary? This one was a doozy to follow, and I'm glad you got it sorted. And thanks to Marcus for helping sort through it! Cheers, Ben On Mon, May 6, 2019 at 7:17 AM Gary.Simpkins wrote: > Hi Marcus. > > It was late last night and I missed the errors in

Re: [Discuss-gnuradio] [GSoC19] Accepted student projects announced!

Hi everyone, I am really excited about doing some awesome work with GNU Radio this summer and I hope that my work will be a nice extension to the GNU Radio project. I'll be posting weekly blogs about the current state of my project and will also remain in frequent touch with the mentors

Re: [Discuss-gnuradio] Data loss during transmission (OFDM .bmp file)

Hey Simran - All of this is to say that your communications system design does not appear to be robust to the impairments and complexities of wireless channels, some of which Marcus mentioned. Can you share what your specific goal is or why you're undertaking this work? Depending on what you are

Re: [Discuss-gnuradio] How to get precise time tag from blocks_meta_data_sink

Hi Ziang - I'm not sure I completely follow your system set-up, so I'm not sure how to answer all of your questions, exactly. There are almost certainly a couple of things at play here, including the source of your time (is it on the radio? your PC?), and the data representation of the time tag

Re: [Discuss-gnuradio] Question on PMT boolean messages

Excellent! So glad you got it working, Ali, and thanks for sharing the solution to your issue! Cheers, Ben On Wed, May 1, 2019 at 3:45 PM Ali Dormiani wrote: > I figured this out today. I used a handle_msg and simply connected a > message strobe to the 'junk' msg input. My custom block works

Re: [Discuss-gnuradio] FEC Examples with Modulators

Hi Alex - Have you tried any of the examples in gr-fec/examples? If so and they didn't work for you, what issues have you encountered? Cheers, Ben On Sat, May 4, 2019 at 9:20 PM Alex Roberts wrote: > Hello GNURadio Users, > > I'm learning about convolutional encoders in school and would like

Re: [Discuss-gnuradio] Software Defined Radio Academy: Programme is ready

That's quite the program, Markus! I can't make the event, but I'm really looking forward to the recordings! Cheers, Ben On Thu, May 2, 2019 at 6:58 PM Markus Heller wrote: > Dear community, > > please see our programme web site. > > The programme of the Software Defined Radio Academy 2019 on

Re: [Discuss-gnuradio] New/Updated GPredict Interfacing Blocks

Congrats on the awesome work, Mike! This is really cool. The auto trigger & close for file recordings is a nice touch. You know this could be part of a pretty awesome GRCon talk ;) Cheers, Ben On Mon, May 6, 2019 at 9:17 PM GhostOp14 wrote: > Hi everyone, > > I've been doing a good bit of

Re: [Discuss-gnuradio] libvolk NEON support progress update

This really is great work, Albin! Thanks so much for sharing your work and keeping the community posted on your progress! And wow, the speedup on the rotator is impressive. I'm really looking forward to your work getting upstreamed =) Cheers, Ben On Tue, May 7, 2019 at 12:50 PM Martin Braun

Re: [Discuss-gnuradio] [GSoC19] Accepted student projects announced!

Congratulations, Arpit and Bowen! I look forward to tracking your development this Summer and working with you in the community! Cheers, Ben On Tue, May 7, 2019 at 2:27 PM Wunsch, Felix (CEL) wrote: > Hi all, > > > Google has announced the accepted student projects for GSoC 2019: Arpit > Gupta

Re: [Discuss-gnuradio] Getting "Environment Error" when trying to use USRP X310

On 05/07/2019 02:30 PM, Jose Ruvalcaba wrote: Yes I do. However, I've noticed that when I reboot the radio, the issue does not appear. However, after I switch to another flowgraph, the issue shows up and I need to reboot the radio again. I've attached a screenshot of the issue after trying the

[Discuss-gnuradio] [GSoC19] Accepted student projects announced!

Hi all, Google has announced the accepted student projects for GSoC 2019: Arpit Gupta and Bowen Hu will be contributing to GNU Radio during the summer - congratulations to both of them! Arpit will work on a tool for parsing GNU Radio header files to create YAML descriptions that can be used

Re: [Discuss-gnuradio] Getting "Environment Error" when trying to use USRP X310

If you use one of the test tools like uhd_fft or any of the purely UHD tools do you see the same issue? Sent from my iPhone > On May 7, 2019, at 1:14 PM, Jose Ruvalcaba wrote: > > Hi Marcus, > > I was using a 1 Msps sample rate in my flowgraph. As for the Ethernet > controller, I was

Re: [Discuss-gnuradio] Getting "Environment Error" when trying to use USRP X310

Hi Marcus, I was using a 1 Msps sample rate in my flowgraph. As for the Ethernet controller, I was currently using my standard 1 GigE Ethernet port on my PC, however, this issue also shows up when using a 10GigE connection. If it helps, the 10 GigE Ethernet card I have is the desktop card sold by

Re: [Discuss-gnuradio] libvolk NEON support progress update

Very cool! Looking forward to your PR! On Tue, May 7, 2019 at 7:04 AM Albin Stigö wrote: > Hi, > > Just a quick progress update. I have completed NEON support for 34 out > of 74 libvolk kernels that were missing NEON implementations. > > Average speedup is around 4x depending on kernel, not

Re: [Discuss-gnuradio] Getting "Environment Error" when trying to use USRP X310

On 05/07/2019 02:23 AM, Jose Ruvalcaba wrote: Hello, I recently installed GNU Radio 3.7.13.4 with UHD 3.14 ,using PyBOMBS, and tried to use my X310 radio with it. It asked me to update its FPGA image, and after updating it, I began to see an error whenever I tried using the USRP sink and

[Discuss-gnuradio] libvolk NEON support progress update

Hi, Just a quick progress update. I have completed NEON support for 34 out of 74 libvolk kernels that were missing NEON implementations. Average speedup is around 4x depending on kernel, not very surprising since NEON SIMD vector size for float32 is 4... Biggest surprise was

[Discuss-gnuradio] Getting "Environment Error" when trying to use USRP X310

Hello, I recently installed GNU Radio 3.7.13.4 with UHD 3.14 ,using PyBOMBS, and tried to use my X310 radio with it. It asked me to update its FPGA image, and after updating it, I began to see an error whenever I tried using the USRP sink and source block In GNU Radio. The error reads: