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GNU Radio 3.8
- mtreis86 7y agoThat is a lot of changes. Finally got rid of wxgui.
- avian 7y agoWhat was wrong with wxgui? I never understood that. For years everyone was saying don’t use it, but wxgui widgets always seemed much more polished and usable. For example, the wxgui waterfall diagram was far beyond anything I could find in qtgui. I haven’t used GNU radio in maybe a year, so I don’t know what this release brings.
- FraKtus 7y agoI agree with you; a wxgui will call the native graphic API of the platform directly while Qt is reimplementing everything, and most of the time it's not GPU accelerated. I am currious to hear about how CPU intensive are the 2 versions, wxgui vs Qt.
- mtreis86 7y agoI have no personal issue with it, it's just that the developers have been saying not to use it for a while, at some point I begin to wonder why even include it any longer.
- madengr 7y agoKudos to the GR team. Now I have some stuff to move to 3.8.
- codesushi42 7y agoExcellent. What a great tool for SDR. And for hacking car key fobs.
- rgovostes 7y agoOut of curiosity, has anyone implemented a dial-up modem with GNU Radio? Or if not, what would need to be implemented, V.92?
- Zenst 7y agoI found this from 2010, that uses GNU radio piped into a soft modem: http://oz9aec.net/radios/gnu-radio/connecting-gnu-radio-to-the-multimon-software-modem http://oz9aec.net/radios/gnu-radio/connecting-gnu-radio-to-t... Which would be the easiest way, unsure if you could do it purly in GNU Radio as not that up upon it, though software modems been around for a while, and more optimised code for the task. Historically the earliest software modems date back to the 90's.
- abbeyj 7y agoNot using GNU Radio but perhaps you might be interested in http://www.whence.com/minimodem/ http://www.whence.com/minimodem/. It only supports really old standards, up to 1200bps. But later modems should, in theory, be backward compatible so if you don't care about speed this could possibly work.
- rasz 7y agohttp://www.whence.com/minimodem/ http://www.whence.com/minimodem/ does bell 103 https://www.youtube.com/watch?v=1Pmxkt9mYgM https://www.youtube.com/watch?v=1Pmxkt9mYgM This dude https://www-users.cs.york.ac.uk/~fisher/modem/ https://www-users.cs.york.ac.uk/~fisher/modem/ wrote V.32 soft modem stack for SGI Indy back in 1996 I remember reading back in the day in hacker zines about magic police modem tapping boxes, but no idea how would that work in the age of echo cancellation.
- drmpeg 7y agoStupid GNU Radio tricks. http://www.w6rz.net/spectrumpaint.mp4 http://www.w6rz.net/spectrumpaint.mp4
- drmpeg 7y agoPorted to 3.8. https://github.com/drmpeg/gr-paint38 https://github.com/drmpeg/gr-paint38
- justinjlynn 7y agoOw, my spectrum.
- rhinoceraptor 7y agoYou can do this safely, just connect two SDRs together with an attenuator :)
- qubex 7y agoI have a LimeSDR. This is where a plugin that allows it to interoperable with GnuRadio can be found: https://wiki.myriadrf.org/Gr-limesdr_Plugin_for_GNURadio https://wiki.myriadrf.org/Gr-limesdr_Plugin_for_GNURadio Highly recommended.
- platz 7y agoDid you remove the filters on your lime?
- qubex 7y agoNo.
- daze42 7y agoI just bought a LimeSDR Mini a few days ago and I've realized it's hard to find software that supports it. Which OS/viewing software have you found that works best with it?
- qubex 7y agoI use it under Ubuntu (19.4) and pipe it into Mathematica.
- crankylinuxuser 7y agoI've designed and took my creation, the RadioInstigator, to Defcon. https://hackaday.com/2019/06/05/mobile-sigint-hacking-on-a-civilians-budget/ https://hackaday.com/2019/06/05/mobile-sigint-hacking-on-a-c... Runs 3.7 GnuRadio along with a whole slew of tools and antennas to boot. I even put the guy who runs the Wall of Sheep... on the Wall of Sheep. He was running a Logitech clone dongle. Pwned. My device is GPL3 and on https://gitlab.com/crankylinuxuser/siginttablet https://gitlab.com/crankylinuxuser/siginttablet . It costs around $150 to build.
- quixoticelixer- 7y agoWhat would i use GNU Radio for?
- ggm 7y agopicking up airplane position-indicator feeds with a DTV USB-stick and mapping the into a display in an rPi?
- OrgNet 7y agoYou could use it for that but there is software made specifically for this, like dump1090 for Linux (here for other options: https://www.rtl-sdr.com/adsb-aircraft-radar-with-rtl-sdr/ https://www.rtl-sdr.com/adsb-aircraft-radar-with-rtl-sdr/)... What I found funny when I tried it is that many small airplanes don't broadcast that signal... are they FBI's planes? Another interesting use can be reading your electric meter (and the ones of your neighbors), using GNU Radio or https://github.com/bemasher/rtlamr https://github.com/bemasher/rtlamr . Another one, is reading TPMS from your car wheels (or cars that are passing by): https://www.rtl-sdr.com/receiving-decoding-tire-pressure-monitor-systems-using-rtl-sdr/ https://www.rtl-sdr.com/receiving-decoding-tire-pressure-mon... , https://github.com/jboone/tpms https://github.com/jboone/tpms
- rhinoceraptor 7y agoHalf of the fun is implementing the radios yourself, it's a great learning exercise.
- OrgNet 7y agoFor me it is a quarter of the fun.... much more fun to see all the data that is available to anyone over the air....
- LeonM 7y agoYou use it to program/run a Software Defined Radio (SDR). SDR makes radios cheap, versatile and programmable. As a non-licensed radio operator you can get a cheap USB connected receiver and use GNU radio to receive, demodulate and decode all sorts of signals. It's fun to learn about how to decode certain signals. You start with a simple AM demodulator to listen to music stations and before you know it you're tracking airplanes and hacking keyfobs.
- cameronbrown 7y agoGNU Radio is one of those examples of free software being hyper-niche yet super successful. It's something I want to start playing with in the near future. Anyone got any advice on where to start?
- Stratoscope 7y agoI don't know the specifics of GNU Radio, but if you want to transmit, start by getting your amateur radio license. In the US, you should be able to get your Technician license with a half day of study and a quick test. Here's one good place to get started: https://hamstudy.org/ https://hamstudy.org/
- rhinoceraptor 7y agoIME getting a license is not really that valuable unless you care about phone or CW. Also, if you do get a license, register it to a PO box.
- sciurus 7y agoYou need a license to transmit in the digital portions of the amateur bands as well.
- rhinoceraptor 7y agoTrue, but there are a ton of cool things you can do just in ISM. And depending on where you are, your local repeater may not be the most welcoming place, especially if you're not the typical middle age white male.
- ac29 7y agoDepends what you're looking to do. ISM bands are limited to 1W transmit power, and the lowest frequency band with more than a few kHz available in the US is the 902-928 band. High frequency and low power combined tend to mean relatively short range. That being said, I work with 900MHz radio for a living (among other bands), and you can get impressive results in the 1-20 mile range with the right technology and infrastructure. A $10 ham license opens up a significant amount of bandwidth, and power up to 1500W.
- londons_explore 7y agoI have found gnu radio rather hard to use... I just want a GUI tool which lets me take data streams, mix them, add them, run a function over them, preview them as a scope, power spectrum or IQ chart, play them through a speaker, decode them as mpeg, GPS signals, or anything else. It seems GNU radio offers all that, but is so fiendishly hard to use it's easier just to write code in C to process my data as I want and plot it with matplotlib.
- michal_f 7y agoSame here. I needed a CLI based RTTY decoder but could not get it done in GNU radio. It turned out to be easier to code this in C++ [1], though I had to learn a lot on the way. GNU radio has step learning curve... [1] https://github.com/ogre/habdec https://github.com/ogre/habdec
- roamingryan 7y agoNot quite what you are describing, but Universal Radio Hacker is a useful tool for reverse engineering protocols. https://github.com/jopohl/urh https://github.com/jopohl/urh
- thom 7y agoAnyone got any recommendations for hardware and a few first projects to learn about SDR, especially kid-friendly stuff?
- therealx 7y agoJust get a $30 RTLSDR kit from Amazon. Plenty of easy/fun projects, only caveat is its read(listen) only. Track planes, listen to TV/Radio/watch your garage door clicker/listen to satellites/the space station/a million other things. If you like it and want to take things further, buy a limesdr mini or bladerf or something. By then you'll feel constrained by the rtlsdr and know better what you want.
- gsich 7y agoAdalm Pluto if you also want to send.
- swebs 7y agoThe Install Gentoo wiki from /g/ has a good beginner's guide. Unfortunately, it looks like the wiki is down right now, but here's an archive of the SDR page. http://archive.is/eJYEy http://archive.is/eJYEy
- unixhero 7y agoGreat documentation, but strange that they include a screenshot from a Windows application...
- qubex 7y agoLimeSDR mini.
- rv-de 7y agoWould it be possible to use this as the infrastructure for a clandestine, low-bandwidth, text-based mesh network? An internet for nerds kind of thing.
- bobowzki 7y agoYes.
- LfLxfxxLxfxx 7y agoShh... don't tell anyone!
- jdietrich 7y agoYes, for a definition of "low-bandwidth" that you'll probably find disappointing. The WSJT digital modes are capable of long-range communication at well below the noise floor, but we're talking about single-digit bits per second in typical use. https://www.physics.princeton.edu/pulsar/K1JT/ https://www.physics.princeton.edu/pulsar/K1JT/
- pmoriarty 7y agoWhat about short, rare bursts of high bandwidth transmissions from a mobile platform? Depending on how creative one was about the locations and operation times of the transmitter, I'd expect it'd be pretty difficult to find.
- superkuh 7y agoThose transmissions won't go more than the next slight rise in the ground or valley. High data rate requires line of sight which requires height above terrain which requires either money or rare luck.
- pmoriarty 7y ago"High data rate requires line of sight which requires height above terrain which requires either money or rare luck." What about a transmitter temporarily sent aloft on a balloon, model rocket, or drone, then making its brief high-bandwidth transmission and then parachuting or landing, being retrieved by its operator who then disappears until the next transmission from another location? It might even be disposable, and potentially either deliberately sink itself in to an ocean or other difficult to access place, and/or self-destruct to make recovery and forensics more difficult.
- acd 7y agoGnu radio is great thanks to all the developers for the latest realease enjoy fun tinkering with radio!
- person_of_color 7y agoBeen out of the SDR community a while. What's the best SDR transceiver that can transmit? I used bladeRF last.
- doom2 7y agoFor licensed ham radio operators, can GNU Radio work with platforms like the FlexRadio transceivers? Can it send PSK-31 or JT65? I see a lot of projects/documentation related to using it for all sorts of wireless communication, but can't find a ton of stuff as it relates to ham radio.