#gnuradio — Public Fediverse posts

Status Update to the Laserdisc Project

https://youtu.be/zE6gzwquq9g

#laserdisc #retro #gnuradio

It seems my #gnuradio #correlator actually works, though I am still somewhat skeptical.

This is from a #limesdr correlating its two mu-mimo inputs.

The second picture is what happens when you disconnect one of the antenna from the input showings its not just correlating its own noise.

The NTSC "cross hatch" test signal was modulated via #gnuradio into an LD RF signal, demodulated by PAL #Laserdisc player hardware, and displayed on a PAL CRT. The image is not very good, but the test pattern is still easily recognizable.

I was able to reconnect with #hams from #maryland and people I met at #hamsci, #cedar, #hamvention and #gnuradio conferences. Some folx I haven't seen since the #pandemic! It was good to be out and about. Everyone was cool but no one who was still working wanted their photos shared on #socialmedia because they were concerned about security issues and fear of a #facist planet. This is what it has come down to. SMH 4/4

I was able to reconnect with #hams from #maryland and people I met at #hamsci, #cedar, #hamvention and #gnuradio conferences. Some folx I haven't seen since the #pandemic! It was good to be out and about. Everyone was cool but no one who was still working wanted their photos shared on #socialmedia because they were concerned about security issues and fear of a #facist planet. This is what it has come down to. SMH 4/4

I was able to reconnect with #hams from #maryland and people I met at #hamsci, #cedar, #hamvention and #gnuradio conferences. Some folx I haven't seen since the #pandemic! It was good to be out and about. Everyone was cool but no one who was still working wanted their photos shared on #socialmedia because they were concerned about security issues and fear of a #facist planet. This is what it has come down to. SMH 4/4

@samirparikh
Thanks. It relies on existing building blocks though, like #MMDVM , #GNURadio and the #DMR trunking controller (DMRTC) which has been in development for more than two years.

Just posted about #SOURCE issue 4 and the future! Originally I committed to 4 issues, but, as a spoiler for the blog post, I'm going to carry on! Post mentions #opensource #gnuradio #freecad #openvsp #OSHWA #git and more!

https://concretedog.blogspot.com/2026/02/source-issue-4-and-future.html

Just posted about #SOURCE issue 4 and the future! Originally I committed to 4 issues, but, as a spoiler for the blog post, I'm going to carry on! Post mentions #opensource #gnuradio #freecad #openvsp #OSHWA #git and more!

https://concretedog.blogspot.com/2026/02/source-issue-4-and-future.html

Just posted about #SOURCE issue 4 and the future! Originally I committed to 4 issues, but, as a spoiler for the blog post, I'm going to carry on! Post mentions #opensource #gnuradio #freecad #openvsp #OSHWA #git and more!

https://concretedog.blogspot.com/2026/02/source-issue-4-and-future.html

Just posted about #SOURCE issue 4 and the future! Originally I committed to 4 issues, but, as a spoiler for the blog post, I'm going to carry on! Post mentions #opensource #gnuradio #freecad #openvsp #OSHWA #git and more!

https://concretedog.blogspot.com/2026/02/source-issue-4-and-future.html

Just posted about #SOURCE issue 4 and the future! Originally I committed to 4 issues, but, as a spoiler for the blog post, I'm going to carry on! Post mentions #opensource #gnuradio #freecad #openvsp #OSHWA #git and more!

https://concretedog.blogspot.com/2026/02/source-issue-4-and-future.html

#gnuradio

On #macos #tahoe installed with #conda, I'm going slightly insane.

gnuradio (v3.10.12.0) depends on qt-main (v5.15.15)

gnuradio also depends on qwt (v6.3.0) which depends on qt6-main (v6.10.1)

So, now I have both qt5 and qt6 installed .. by the installer .. that fails when you attempt to run anything because there's two versions of qt installed.

Anyone?

I had the curiosity to do some tests transmitting and receiving DMR DMO with an unmodified #plutosdr

Normally DMR in repeater mode requires establishing a time base from the BS transmission in order to fit into one of the timeslots.

However, in DMO mode, there is no such requirement. When starting a DMO transmission, every terminal establishes its own time base, and the receiving radio must synchronize to it.

So DMR in DMO mode can work fine with the Pluto.

#DMR #DMO #ADALMPluto #gnuradio

Having some fun tonight. #hackrf #gnuradio

Having some fun tonight. #hackrf #gnuradio

Having some fun tonight. #hackrf #gnuradio

Having some fun tonight. #hackrf #gnuradio

Having some fun tonight. #hackrf #gnuradio

I already had #gqrx and #gnuradio on this machine.

I had to install dependencies:

libconfig++-dev
libcodec2-dev
libftdi-dev
liblimesuite-dev
libuhd-dev
libzmq3-dev
libjpeg-dev
liblog4cpp5v5
liblog4cpp5-dev

Should have had tried harder a few months ago.

I wanted to check out #Meshtastic in my area, before I buy any Meshtastic compatible #LoRa hardware. With the [meshtastic_sdr](https://gitlab.com/crankylinuxuser/meshtastic_sdr) project it is possible to receive Meshtastic data with an #RTLSDR dongle. It comes as a #GNURadio flow and a Python script to decode the messages into readable text. You can even decode all Meshtastic presets at the same time. Awesome project!

A few pics with the signals right at the output of my ADALM-Pluto in the 2390 MHz band, before amplification. In order or appearance: 4FSK, DQPSK, GMSK. I don't normally use the GMSK modem due to it's slightly lower performance, it's just there to spite my D-Star-using friends. Audio payloads are Codec2 and Opus.

The amplification chain has two stages: first to ~16 dBm, second one to ~36 dBm.
@n8dmt

#ADALM-Pluto #SDR #GNURadio #plutosdr #hamradio

Hello hams. I've published my #fm #receiver demonstration files for #gnuradio companion here for the #hydrasdr #RFone here for your enjoyment:
https://github.com/wb2ifs/HydraSDR-graphs

Got #gnuradio #FM #receiver demo #tutorial working with the #hydrasdr #rfone #SDR 😎 #swl #hamradio #npr #ubuntu #linux

@kb6nu I'm also playing around with #gnuradio trying to get it working with #hydrasdr #rfone radio.

@funkylab I tried that first and I got #gnuradio to open but it wouldn’t recognize the #hydrasdr. So I backed the install out and built it from source. Still no joy.

Okay. I’m getting segmentation faults when I try to start #gnuradio on #unbuntu #linux. I’m trying to use the #hydrasdr #rfone and I can get #sdrpp to work fine but not #gnuradio. 🤔

HackRF + GNU Radio = WBFM Transmitter

Продолжаю цикл статей посвященных легендарному HackRF. В этом материале я хотел бы разобрать изнанку GNU Radio и описать широкими мазками то, каким образом оно устроено под капотом и сделать какой-нибудь минимально интересный проект с его использованием. Для себя я выбрал простую передачу аудиосигнала с микрофона с одного HackRF на другой через коаксиальный кабель с использованием OFDM-модуляции. Посмотрим на созвездия, спектр, принимаемый сигнал во времени и по частотам. Добро пожаловать под кат, будет интересно! 🙂

https://habr.com/ru/companies/beget/articles/955956/

#hackrf #gnuradio #wbfm #fmрадио #sdr

#gnuradio #plutosdr

https://youtu.be/9rqR_uWuhsY?si=kmzQkWfRhds93vat

🤩 ongoing work by @dkozel ; join the @gnuradio matrix chat ( #gnuradio:gnuradio.org ; https://matrix.to/#/#gnuradio:gnuradio.org ) if you want to discuss things such as getting #gqrx 's waterfall plot usable as separate visualization.
https://www.youtube.com/watch?v=TH7Gb9MgbeE

#AskFedi How would I go about converting a #GNURadio "script" into a standalone application?

#RTLSDR #SoftwareDefinedRadio

PSA: Please reload your https://grcon.stream ; we had to replace our stream URL to enable subtitles.
#GRCon25 #gnuradio #livestreamig

GNU Radio Conference 2025 kicked off!
https://grcon.stream
#GRCon25 #gnuradio

Reverse Engineering a (Toy) Fire Engine https://hackaday.com/2025/09/06/reverse-engineering-a-toy-fire-engine/ #ReverseEngineering #WirelessHacks #RadioHacks #gnuradio #RTL-SDR

Reverse Engineering a (Toy) Fire Engine - Your kid has a toy remote control fire truck. You have an RTL SDR. See where this ... - https://hackaday.com/2025/09/06/reverse-engineering-a-toy-fire-engine/ #reverseengineering #wirelesshacks #radiohacks #gnuradio #rtl-sdr

Roll Your Own SSB Receiver https://hackaday.com/2025/08/19/roll-your-own-ssb-receiver/ #software-definedradio #Singlesidedband #WirelessHacks #gnuradio #hamradio #sdr #ssb

Roll Your Own SSB Receiver - [Paul Maine] was experimenting with GNU Radio and an RTL-SDR dongle. He created an... - https://hackaday.com/2025/08/19/roll-your-own-ssb-receiver/ #software-definedradio #singlesidedband #wirelesshacks #gnuradio #hamradio #sdr #ssb

🚀 THE COUNTDOWN IS OVER! 🚀
https://hydrasdr.com is NOW LIVE with MAJOR open-source release !
✅Complete host tools / API and firmware
✅SDR++ / SatDump (until official support is available)
✅SoapyHydraSDR, GNU Radio (gr-osmosdr)
✅urh, luaradio support
✅Full software ecosystem coverage
📂GitHub: https://github.com/hydrasdr
🛒Buy HydraSDR RFOne @digikey
: https://digikey.com/en/products/detail/benjamin-vernoux/hydrasdr-rfone/26256067
Professional SDR meets open source ! 🇺🇸🇫🇷
#HydraSDR #SDR #OpenSource #SDRPlusPlus #GNURadio #SatDump

Open Source DMR Modem Implementation in SDR with GNU Radio and Codec2

https://qradiolink.org/open-source-DMR-transceiver-implementation.html

#HackerNews #OpenSource #DMR #SDR #GNURadio #Codec2 #DigitalCommunications

The #GRCon #CTF is under way, and runs until Thursday at 16:00 EDT (20:00 UTC). There's something for everyone; no prior #GNURadio experience necessary. https://ctf-2024.gnuradio.org/ flag{go0d_lucK!}

Honored to be part of this lineup!
https://www.dsponlineconference.com/

I'll be doing my thing - DSP, the @gnuradio way!

#onlineconference #dsp #gnuradio #sdr

Ceren Gülsüm Karaköse putting us into orbit at #EUGRDays24 at @FAIR_GSI_de with @gnuradio -based ground station and satellite data links!
#gnuradio #spaaaaaaace #sdr #satellites

Through the application of #gnuradio and an #rtlsdr dongle I have determined there are no other obvious interfering users of the 868 #mhz band. I just have very thick Victorian stone walls between two of the three nodes of the network. This could be a problem because the two energy diverting devices need a single common source of truth when it comes to the #grid load.

1. Good department meeting with the dean today.
2. Ordered a lot of hardware for next semester’s classes.
3. Got #GnuRadio working natively on my ARM Mac with my #HackRFOne.

#ThreeGoodThings @threegoodthings

Уходящий в историю стандарт. Запускаем базовую станцию 3G (UMTS)

Приветствую всех! 2023 год стал началом массового отключения ныне уже устаревших сетей третьего поколения. Многие операторы по всему миру уже вывели из эксплуатации эти сети или запланировали это на ближайшие годы. Самое время для того, чтобы поднять такую базовую станцию у себя. И, как выяснилось в процессе, это не так просто, как может показаться. Итак, в сегодняшней статье разберёмся с тем, как собрать и заставить работать софт для поднятия сотовой сети типа UMTS. Узнаем, как устроены и работают такие сети. Традиционно будет много интересного.

https://habr.com/ru/companies/timeweb/articles/786198/

#timeweb_статьи #3g #umts #gsm #опсос #ran #arfcn #sdr #usrp #gnuradio #xubuntu #iptables #wcdma #utran #openbts #osmocom #asterisk #sipauthserve

Уходящий в историю стандарт. Запускаем базовую станцию 3G (UMTS)

Приветствую всех! 2023 год стал началом массового отключения ныне уже устаревших сетей третьего поколения. Многие операторы по всему миру уже вывели из эксплуатации эти сети или запланировали это на ближайшие годы. Самое время для того, чтобы поднять такую базовую станцию у себя. И, как выяснилось в процессе, это не так просто, как может показаться. Итак, в сегодняшней статье разберёмся с тем, как собрать и заставить работать софт для поднятия сотовой сети типа UMTS. Узнаем, как устроены и работают такие сети. Традиционно будет много интересного.

https://habr.com/ru/companies/timeweb/articles/786198/

#timeweb_статьи #3g #umts #gsm #опсос #ran #arfcn #sdr #usrp #gnuradio #xubuntu #iptables #wcdma #utran #openbts #osmocom #asterisk #sipauthserve

Уходящий в историю стандарт. Запускаем базовую станцию 3G (UMTS)

Приветствую всех! 2023 год стал началом массового отключения ныне уже устаревших сетей третьего поколения. Многие операторы по всему миру уже вывели из эксплуатации эти сети или запланировали это на ближайшие годы. Самое время для того, чтобы поднять такую базовую станцию у себя. И, как выяснилось в процессе, это не так просто, как может показаться. Итак, в сегодняшней статье разберёмся с тем, как собрать и заставить работать софт для поднятия сотовой сети типа UMTS. Узнаем, как устроены и работают такие сети. Традиционно будет много интересного.

https://habr.com/ru/companies/timeweb/articles/786198/

#timeweb_статьи #3g #umts #gsm #опсос #ran #arfcn #sdr #usrp #gnuradio #xubuntu #iptables #wcdma #utran #openbts #osmocom #asterisk #sipauthserve

Today I learnt that #GNUradio Companion (GRC) has the ability to export C++. I think that this means that I can compile the C++ and run it natively on a #PlutoSDR.

Time will tell what the gap between theory and practice is :)

Picked up a #hackrfone ; Excited to play with #gnuradio and RF!

Problem reproducing a bug:

Does anyone have a #MacOS machine with #gnuradio installed through standard ways?

Does your audio source work on the first try, i.e., does it just work or at least ask for permission to use the microphone?

https://github.com/gnuradio/gnuradio/issues/3415

flowgraph file: https://gist.githubusercontent.com/marcusmueller/eb13db71a2b7b3b95c020f703722fc98/raw/c997f80ba5e6381991d99f132347d231da8ffa8b/repro3451.grc

(If you wonder what an easy way of installing GNU Radio on Mac OS is: https://wiki.gnuradio.org/index.php?title=InstallingGR#Quick_Start)

#FOSS #BugTriage #GNURadio #HelpWanted