RF Solutions attempts to dispel a few common myths about radio technology.
1. The range of a remote control system is determined by the receiver.
MYTH! The range a remote control system can achieve is determined by BOTH the transmitter and receiver being used. For example, when used with our ELITE receiver, our FOBBER key fob can achieve a range of up to 200m as it is a compact low power transmitter with an internal antenna. Whereas our ELITE-XT can achieve a 1km range as it is a larger handheld transmitter with an external antenna.
2. It is illegal to transmit constantly.
TRUE! When using a standard Licence Free frequency (868MHz/433MHz) it is actually illegal to constantly transmit. The reason for this is because if a transmitter is constantly transmitting it can flood the radio spectrum and block any other signal on that frequency in the area from getting through.
3. My neighbour and I have the same remote control system, so I can open his garage door with my key fob.
As handy as this may be, it is a MYTH! Whether there are two systems next door to each other, or a mile apart, when it comes to RF Solutions’ systems one transmitter will not be able to control the other system’s receiver without being paired.
Remote control systems can often look very similar but, just like our mother’s told us: “it’s what’s on the inside that counts!” The firmware and hardware can differ, meaning that a transmitter should only communicate with the receiver it is designed for, and paired to. This is not always the case. For instance, years ago radio devices were not designed to be a secure technology.
As you may have seen in some old movies, thieves could clone or copy signals required to unlock buildings and cars fitted with this technology.
4. Transmitters require power to work.
This is unfortunately TRUE! It is a frequent misconception that a transmitter doesn’t need a battery replacing. Just like our TV remotes, transmitter batteries will have a life dependent on their usage.
However, technology is constantly improving and we’re working on lower power and energy harvesting systems such as our KAPRION battery-less range.
5. The higher the frequency, the further it can travel.
MYTH! The main factors, including the power output and the frequency, determine the range achievable from radio. It is usually the lower the frequency, the better the range and penetration that is achievable.
However, legislation also affects this. In Europe, for example, 433MHz is not allowed as high-a power output as an 868MHz system. This means it is, in fact, possible to get a better range out of an 868MHZ system than a 433MHz one.
