Figuring out… PacketTracer!

For my study we have tot work with a program called packettracer.

This is a piece of software wich let you build a computer network and simulates how it works.

It works quiet simple, you log in to the website, download the lesson, enter your username and password and you are ready to go!

Hack-RF one and repeating radio signals

While I was recently playing with my new Hack-RF one some theory popped into my mind:

“If you can repeat certain radio signals it should be possible to let a device think a legit signal is received and it would preform an sort of action,

(for example the signal of a garage door opener should open the garage if replayed).”

So at that point I started searching for radio signals around 433 MHz also known as the ISM band,