First a few things to note about the HackRF, it leaks RF all over the spectrum. When I would do a sweep, on the frequencies my Ham could Rx/Tx on and then listen in on my Ham on the IDed frequencies it was nothing of importance. So I started a few very professional trial and error methods "moving around and tapping on the HackRF" and noticed a change in the white noise then when I unplugged it the Tx stopped. Also when you Tx on a frequency that the HackRF ins't already leaking on, then stop the program "GNURadio" the HackRF will continue to transmit on that frequency.
On to Jamming. First thing I wanted to mess with was my car, I don't know much about it but I am guessing it uses a rolling code so therefore replay was out, but jamming would be ok :) After a quick check of its FCC ID I found the frequency. To my surprise it was in the range of my Ham! First thing I did was listen to it on my Ham when I hit the lock button on my fob I could hear little beeps, my car locked and boy was I excited! So then I keyed up my radio and hit the lock button on my fob again, this time nothing!! I stopped Tx on my radio and I could once again lock my car. My Ham Tx was more powerful then the fobs Tx so it was jammed!
Next up was a motorized bed we got a few years back. It has a remote to control the head, foot, and vibrate functions. It does not have an IR Led so I figured it must be RF. I opened it and there was an FCC ID. Again it was in the range of my radio! After listening to the beeps on my radio and getting a good message, I keyed up my radio and the remote stopped working, lol.
Thats all I have for now, but there is more to come on this topic! One thing for sure, there are way more commercial products using Ham frequencies then I first originally thought, it should be fun breaking them. I have had a blast so far and look forward to playing with the HackRF and my Ham more! Might make my own bed remote with a doggy style position/mode or something lol! Happy Hacking.
