Using GNU Radio Companion Part 1

A walk through of using GNU Radio with no radio. The example displays an FFT of a fixed signal source or input from a soundcard. You'll learn about data types, GUI layout, and more and be ready to look at an actual SDR build in part 2.
Hackaday post: hackaday.com/?p=175516

[@alfagulf]

I learned so much in this short video than days and weeks going through other videos and tutorials. Thanks and eagerly waiting for part 2.

[@skidmoremusictech528]

This is a totally awesome video! Thanks to you, I was able to make the exact same flow graphs for the very first time and use the GNU radio companion for the first time. This just rocks! You are awesome! Thanks so much for bringing new information and new methods for digital signal generation! Fantastic!

[@braintube76]

A perfect introduction to GNU Radio. Thanks!

[@stefanhennig]

I just stumbled over the GNU radio companion while searching for tools to do some audio filter design. Talk about software engineers selecting names... This software is just outstanding. But without a tutorial like yours, I would never have known. You have made a humble engineer quite happy!

[@everythingquads]

This is an excellent tutorial, I thoroughly enjoyed it. looking forward to part 2. Thanks for taking the time to make it.

[@vic8084]

I have to use GNU Radio for programming a future project I have no knowledge this is by far the best introduction. Thank you so much for taking the time and going over this I know this was 6 years ago. It is still very relevant. Thank

[@PeteSnipe]

I am late to this one but wanted to say I appreciate such a straight forward introduction (that I could follow along) enabling me to start to understand this useful tool. Thank you.

[@Michael-lo3ht]

I just bought a Kenwood TS940S-AT. Though it's an old radio I've already used the audio out to my pc with Fldigi. But then I remembered seeing this a few months ago. Now I'm anxious to get to use a real world scenario. Now I can play with making filters, doing some conversions, etc.

[@shinew]

Thanks for making the much needed gnuradio tutorial! one suggestion I would like to make is to spend less time teaching how to adjust the UI aspect of it and focus more on explaining the core concept and functions on choosing & using each block. To a new user(such as myself) who doesn't see the whole picture yet, tweaking the UIs back & forth can confuse things a bit. Great video otherwise though, thank you!

[@marcusjenkins]

Superb video, Al. As you say, GNURadio doesn't have to be used for SDR, but I think (and hope) that inexpensive SDR will spark a little renaissance in participation in Amateur Radio. Materials like your video are key to that happening since GNURadio is free and super-powerful but pretty tough to get to grips with to start with. Well done! 73, Marcus EA5IGC

[@alhajee]

This is so intuitive, great video 👌

[@helmutzollner5496]

Great stuff! Thank you for sharing this!

[@acestudioscouk-Ace-G0ACE]

Very clearly put, thank-you.

[@mohamedsayedhussein]

Great job

[@ganeshkgm1874]

Good demonstration

[@BloodBlight]

Great video, demystified the UI for me in no time! Though a few "headphone" warnings would have been nice. ;)

[@batoolkzn9150]

Thanks for your your efforts,I was wondering if I could input audio waves through a microphone and do the same frequency analysis? any help would be much appreciated.

[@bennguyen1313]

Regarding the 22m50s mark, did he mean to refer to the speakers as 'Audio Sink' not 'Audio Source'? Also is there a way to send data to GRC's FFT block, from an external USB data-acquisition device? Or have it continuously opening a file for the source data?

[@jalrheemalugao7249]

Wonderful tutorial. I was wondering how and where we can download certain blocks like PlutoSDR block. I am using ADALM-Pluto SDR. Thank you

[@Andrey43915]

Can I do custom signal processing using SDR + GNU Radio? And custom modulation schemes and so on?

[@sitehost]

ok So Selector is Missing.. what are we using in its place?

[@poyaful]

Gracias!!

[@ko-Daegu]

2 years no dislike that’s a record for me ... Keep it up guys

[@shrirangsapate]

how can this be used to detect hydrogen line of the sun?

[@kevinspeth]

omg this is so cool

[@tempusFugit1337]

Hi i have the following question. Is the HackRF One usable with GNU Radio under Windwos 10 or Windows 7 ? If yes, could you recommend me a website or tutorial where the Installation of HackRF One under Windows is explained and get it Running in GNU-Radio ? Thx

[@rajpreetgulati1195]

Please guide me regarding GNU studio software

[@piaopeter]

Where does the noises from? my result is static

[@phillybruce]

Having trouble with the demo. It seams to run in a one shot manor instead of a continues waveform. In other words the display comes up with a reasonable trace but it never changes. Even when I adjust the slider. I noticed that my Sig Source has a gay input tab that is labelled "freq". No error messages in the console. I am using GRC version 3.7.10. Thanks!

[@phillybruce]

Fixed it. Not sure how. I just deleted Frequency Sink and put a new instance on. Thanks anyhow!

[@maxpolaris99]

Yes thank you great video! Anyone know if gnu plot connects to this anyway?

[@djdonbentley2141]

gnu radio is far more superior to what you can do in windows, however, you almost have to know a precompiled file of what your trying to do, unless your an engineer, this gui is actually allowing you to manipulate real software controlled channel data ,etc, very intricate. its extremely hard to match the blocks together, and make them do exactly what you want.

[@djdonbentley2141]

What I mean is it seems like the Linux version can do more . by the way when I wrote this statement only Linux had a stable good version , the windows version was barely out then .

[@4SHO421]

Nyquist = Sample rate must be at least twice the bandwidth.

[@yungwarlock]

Am new to this, Please is the program connected to any hardware

[@user-or5xy4ht2l]

can it handle tv?

[@karenpena2664]

subtitulos :'(