GNU Radio Tutorials: Part 3 - Types, Channel Selection & Graphical Sinks

[@23RaySan]

dude, writing port 8080 as 8.08k is crazy! but awesome tutorial series. i think you are good at explaining rather complex things in an understandable way. thanks for the affort you put into this!

[@balint256]

If you're looking at any signal from an academic perspective, there is still plenty to learn even if at a higher level the information is encrypted. It's good practice to play around with an appropriate demodulator, analyse various aspects of the signal to gain an insight into its construction, etc. You never know - you might even discover something new (e.g. a security flaw) that has thus far been unknown! :)

[@goofypettiger]

Balint, THANK YOU for making these tutorials available. I have a B200 that I use with OpenBTS but want to do more of the hardcore signal analysis like you did in that walkabout video of yours (San Fran Bay, Airport). Any and all material you publish is highly appreciated!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@MrQwertymnb]

Is there any way to download the GRC files? That would be super useful. :)

[@balint256]

Thanks for watching! To a limited degree you could, yes - a GSM channel is 200 kHz wide, which will definitely fit in the dongle's bandwidth. Just bear in mind that GSM operates on a odd time base (270.833 K symbols/sec with GMSK), and also that the dongle has a smaller (8-bit) dynamic range so YMMV depending on what you wish to achieve.

[@galileo_rs]

Great tutorial, I guess now I have to get a book about gnuradio since I'm hooked :) Thanks Balint

[@raymon432]

Great tutorial! Is it possible to analyse gsm signals with the cheap realtek usb dvb-t stick discussed in your other videos?

[@balint256]

Yes, you can certainly use whichever SDR you wish.

[@jimmyandrianto]

Hi Balint, thanks for your video. Could i ask how to add BORIP block at GNU radio? I am using GNU Radio companion version 3.7.12.0 at Ubuntu 18.04.1 LTS. I can't find the BORIP at my GNU Radio. Could you or somebody assist me. Many thanks

[@linuxbrad]

9:40 - this will make my life 10000 times easier!

[@melonpun]

Thanks a lot for the great videos. I have a question regarding Wi-Fi signals. Currently I am using the HackRF One as a receiver for the 5GHz band router, I want only to observe the behavior of the 5GHz, so is there a way to cancel out the noise and only pass the 5GHz band?

[@amulyavishwanath850]

When I place a UHD:USRP Source block in GRC, it has an input port for the block named as command. Can you please brief about this?

[@ZheminLin]

Thanks a lot! The tutorial is very helpful!

[@akinyeleitamakinde7727]

balint , u are doing good work. pls i need a video for channel sounding, giving details of interface between ready installed PC ( with Ubuntu and gnu radio) and usrp-2920. also, flow graph of both transmitter and receiver. thanks

[@roycohen2013]

wouldn't analyzing gsm be useless because of encryption and the like?

[@jeffscaparra6985]

balint keep up the great work. Are there any good programming tutorials for C++ or python (prefer C++).

[@vinhduong1330]

thanks a lot!!!

[@franklinzhang1600]

balint256 has post the grc files of these tutorials here. github.com/balint256/gr-baz/tree/master/samples/tutorial

[@huzaifasajid6830]

speed x1.25