Actually Chuck – Not as you state.  No, sharing facts of science is not making 
oneself an accessory, at least not in the free world.   In the US, what you 
state is not against the law.  Interfering with other services is against 
administrative law.  In most cases, one is asked politely to stop.  In extreme 
cases and when there is intent, equipment has been confiscated.  I don’t think 
I have ever heard of criminal penalties.

 

I also think you mis-interpreted Matteo’s request.  I think he means “Within 
equipment”, not in the sense of a broadcast signal.   However, in the US, one 
can do that, if the signal is confined within private property or so as not to 
interfere with another service.  I’ve done that many times, and for decades. 
I’ve never gotten a phone call or letter of complaint.

 

I doubt one could take a course in RF engineering without interfering with a 
signal, albeit in confined circumstances – but often not that confined.

 

Matteo – I have a suggestion for you.  Mike Ossman recommends this in his 
videos (which you should also watch).  It’s a book called “Practical Signal 
Processing” by Mark Owen.  I’ve found it quite enlightening and it covers many 
of the subjects of your questions, probably better than any of us can.

 

Geoff

 

From: HackRF-dev [mailto:hackrf-dev-boun...@greatscottgadgets.com] On Behalf Of 
Chuck McManis
Sent: Thursday, May 10, 2018 1:47 PM
To: Matteo Terzi
Cc: hackrf-dev
Subject: Re: [Hackrf-dev] Disturb a RF signal

 

Hi Matteo,

 

Interfering or intentionally disturbing another RF transmission (even in the 
unlicensed bands)  is illegal in pretty much every country in the world. Thus 
any help someone might offer for you to interfere with a signal would make them 
an accessory to that offense. 

 

Typically such interference has occurred during times of war or during 
espionage. Because of that the places where you might go to learn about how 
governments have historically interfered with radio signals is a book on 
Electronic Warfare available at your library or amazon. 

 

--Chuck

 

 

On Thu, May 10, 2018 at 3:03 AM, Matteo Terzi <matteo.terz...@gmail.com> wrote:

Hi all,

anybody know how can I disturb radio signal with hackrf?

I'd like to eliminate a certain value of frequency. I read something about the 
radio signal noise and I know that I should use the same frequency, same 
modulation and with a power higher or equal. Is it correct?

Thanks

 

Matteo

 

-- 

Matteo TERZI

Google Gmail Member


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