We might hide or we might discuss ... jamming systems are less than 10 euros on amazon [0] for any script-kiddie to play with including myself [1]. Why anyone one would want to implement this in SDR rather than a NE555+VCO is beyond my understanding by why not ... we even got to reverse engineer such a device to check its performance. The military will pay you for doing this [2] (and a bit more) so rather than hiding from the real world we might as well face it and educate users.
My (useless) 2 cents, but thank you for the most informative reference and its introductory citation JM [0] https://www.amazon.fr/IrahdBowen-Bloqueur-Bouclier-Brouilleur-Disjoncteur/dp/B07KSC5LLD [1] http://jmfriedt.free.fr/misc_deleurrage.pdf [in French] on GPS jamming and jamming cancellation [2] https://www.defense.gouv.fr/aid/appels-a-projets/appel-a-projets-pour-une-mini-charge-utile-d-appui-electronique-sur-drones [in French] -- JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe, 25000 Besancon, France January 17, 2021 6:24 PM, "Aditya Arun Kumar" <adityaarunkumar...@gmail.com> wrote: > Hi Derek, > Yeah, I accept all the things, after all, I have to, as I tend to wireless > systems and their > security and some more stuff with regards to radios and SDR and things. But > what I suggest is that > we guys start a separate application/discussion area for these kinds of > things (because I > personally as well to some extent historically believe[ > https://doi.org/10.1080/03071847709428739 > ]) that this must be an integral part of the ecosystem. I accept the part > where one needs to have > proper RF enclosures or a SCIF to conduct these emission experiments (unless > it a wide range of > open testing). > > I propose that we have a separate discussion for things like this, just for > educational purposes, > because I feel that there is too much "Telecommunications" research > happening, but very quiet a > limited discussion regarding "What is the best way to build a signal for a > jammer from its spectra" > or "What happens in spatial resolution compromise in a RADAR system and how > this can be a problem". > Basically, I am trying to say let's break the taboo about the discussion > about EW and SIGINT and > ELINT using SDR and GRC. After all, radios are fun. > > This part goes to Mr.Robert > In my humble opinion sir, I don't agree with you not one bit. Technology is a > dual-edged sword, and > radio is a knife with jagged and pointy edges everywhere. There is no concept > of morality (at least > it cannot be quantified by any metric). EW is an integral part of our life > now. And people who are > into it can and should be able to learn it, no matter what, no matter the > cost. This is knowledge > and as I can say GRC taught me a lot, in terms of learning and sharing their > knowledge be it in > blogs or conferences or this mail list. In fact, this kind of question needs > to be encouraged but > with significant warning labels around them. > > On Sun, Jan 17, 2021 at 9:32 PM Robert Heerekop <robertheere...@gmail.com> > wrote: > >> To my humble opinion, this is simply not allowed and must therefore from a >> moral point-a-view not >> be promoted. >> >> Op zo 17 jan. 2021 16:29 schreef Aditya Arun Kumar >> <adityaarunkumar...@gmail.com>: >> >>> On a serious note, I know that all of us know how to build a jammer, in >>> case of questions like this >>> how do we deal with it? >>> I mean I can do both sides, in the spirit of sharing the knowledge I think >>> that someone should tell >>> the person who is doing it on how to build a jammer (in this case) or >>> should we not help the >>> person? >>> Or should we condemn these acts? >>> >>> On Sun, Jan 17, 2021 at 10:15 AM Doug McGarrett <dmcgarr...@optonline.net> >>> wrote: >>> >>>> On 1/16/21 10:58 PM, paulles...@mailo.com wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> Mailo *1 fichier disponible au téléchargement* >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> * hackrf2.png (35 Ko) >>>>> >>>>> Vous pouvez télécharger ce fichier en cliquant sur ce lien ou en le >>>>> copiant dans la barre d'adresse de votre navigateur >>>>> >>>> <https://www.mailo.com/attachlinks.php?id=MTg2NDQuPGVhLW1pbWUtNjAwM2I1Y2ItMTRjNS0yN2Q0OGNlZUB3d3ctMS >>>> tYWlsby5jb20%2b> >>>>> >>>>> >>>> https://www.mailo.com/attachlinks.php?id=MTg2NDQuPGVhLW1pbWUtNjAwM2I1Y2ItMTRjNS0yN2Q0OGNlZUB3d3ctMS5 >>>> YWlsby5jb20%2b >>>>> >>>>> Ce lien restera valable pendant 30 jours. >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> Hello, I have build a VCO jammer using gnuradio and I would like to >>>>> emit the jamming signal on a Wi-Fi channel but nothing is being emitted. >>>>> >>>>> Can anyone please help me ? >>>>> >>>>> I am newbie to signal processing. >>>>> >>>>> PL >>>>> >>>>> >>>> Probably even in France it is illegal to jam radio signals. I sure hope >>>> that NOBODY helps you! >>>> --doug >>> >>> -- >>> S. Aditya Arun KumarSecurity Researcher, Comms+919123517465 > > --S. Aditya Arun KumarSecurity Researcher, Comms+919123517465
