Have you ever tried that famous car trick – holding your key fob to your head to extend its range? It’s not just an urban legend; it actually works! Imagine needing to lock your car from a distance or unlock it for passengers who are already waiting. When your remote central locking seems out of reach, pressing your key fob against your head might just do the trick, often indicated by the flashing hazard lights of your vehicle confirming the action. You might even get a loud beep from some modern cars as confirmation.
Some people dismiss this as simply holding the remote higher, but a quick test proves otherwise. Trying the key fob both against your head and away from it clearly demonstrates the signal boost when it makes contact with your head. But how does this seemingly bizarre method actually work? What’s happening within your body to amplify the signal? To understand the science behind this, we turn to experts like Kyle Hill on YouTube, who delves into the fascinating explanation.
Even the fanciest of keys can be enhanced by the power of your bonce Car key fob range extended using the human head as an antenna.
Kyle breaks down the science in an accessible way, and the key factor is water – something your body has in abundance. Approximately 60% of the human body is composed of water. Interestingly, water reacts in a very specific and helpful way to electromagnetic waves within a confined space, like the human body. When the radio waves emitted from your key fob penetrate your water-rich body, it creates what’s known as a ‘dielectric resonator’. This phenomenon effectively amplifies the amplitude of the radio waves, consequently increasing the effective range of your car key signal.
And surprisingly, you don’t necessarily need a human head to achieve this effect. As Kyle demonstrates, a container of water can also serve the same purpose. So, the next time you find yourself out of range, remember this quirky but effective car trick and the science behind using your head to boost your key fob signal.
