How does it work?
The antenna captures the radio waves from the key fob operating at a frequency of 433 MHz, converting them into an audio signal through the microphone input during sound recording.
This process is facilitated by the key fob's use of On-Off Keying (OOK) modulation, which involves encoding data by alternating between the presence and absence of a carrier frequency of 433 MHz.
The low frequency of these changes allows the captured audio signal to visibly contain the data, despite the sound card's inability to directly process signals at the 433 MHz frequency.
A diode is utilized to ensure only the positive oscillation wave forms are fed into the microphone input. This is necessary because the oscillation amplitudes in the circuit are balanced; without a diode, the input to the microphone would effectively cancel out, rendering the digitized signal void.
Additionally, a capacitor is used to prevent any direct current (DC) from the microphone port from affecting the resonant circuit. Sound cards provide a small amount of DC to the microphone port as it's essential for microphone operation.
In this video, audio recording is performed using Audacity, and the resulting .WAV file is analyzed with Universal Radio Hacker (URH), applying the Princeton preset to decode the signal.
This example underscores the futility of trying to prohibit devices like the Flipper Zero based on the potential for radio signal interception.
Such an approach would necessitate banning virtually all electronics, including commonplace items like headphones, an approach that is clearly impractical.
SIGN THE PETITION!
End the unreasonable prohibition of Flipper Zero in Canada!
Sign the petition using the link below:
www.change.org/p/stop-the-abs...
Dear Karen,
KZitem, and anybody else who watches this without being able to understand the context to which it has been made:
Hacking is NOT a crime.
Owning and using a hammer is also NOT a crime.
Using either to commit crime IS crime.
It's not that complex.
Hacking is a lifestyle and a mindset.
DISCLAIMER:
The hacking-related content presented in my videos is for educational and informational purposes only.
The aim is to increase awareness about cyber security, promote ethical hacking practices, and empower you with knowledge to protect yourself against cyber threats.
I strictly condemn illegal hacking activities and urge you to respect all applicable laws and ethical guidelines in your practices.
Any techniques and tools discussed are to be used in a legal and responsible manner.
By watching my videos, you acknowledge and agree to use this information ethically and lawfully.
I DO NOT ENDORSE ILLEGAL, UNETHICAL, OR UNSAFE BEHAVIOUR, and neither should you!
Help bring balance to this artificial world!
With great knowledge comes, don't be an egg!
BE ETHICAL!
LINKS:
Audacity: www.audacityteam.org/
Universal Radio Hacker: github.com/jopohl/urh
---------------------------------------------------------------------------------------
Send all your SPAM, phishing, and hate mail to: Dick@head.8shield.net:
I read it ALL, click on all links, and use the same password for everything, which is: PA55W0RD1! (because nobody will ever guess that, trust me... I'm a PRO!)
Негізгі бет Тәжірибелік нұсқаулар және стиль Read Sub-GHz like Flipper Zero with a piece of wire!
Пікірлер: 9