The jammer prevents the sale and use of mobile phones

A few years ago, we saw how easy it is to disable Zwave systems with jammers. With the help of radio frequency jammers, the system no longer responds to orders at all. Zwave is not wrong, but this is not a special case. Anything that affects radio waves can be stuck in the same way: wireless home automation systems, but also alarm systems, garage door controls, and even the car’s central door lock. . In fact, with a good jammer, it is easy to disturb the waves and cause the system to stop responding. In France, the sale and use of these jammers is prohibited. However, it is very easy to get it on the Internet at a very affordable price. It is not an inescapable thief, who uses it to disarm the alarm, or to ensure that when you turn off remotely, it greatly facilitates the theft of your car without a lock. In order to solve this problem, Ziblue showed us a new feature: Jam’Alert, at an event held in Smarthome Europe last week.

The operation of the jammer is relatively simple: it will saturate the designed radio frequency. Generally, in terms of safety and comfort, the most commonly used frequencies are 433Mhz and 868Mhz. Some alarm systems try to respond to this, such as switching to 433Mhz when the 868Mhz frequency is scrambled. Unless the cell phone jammer works on these two well-known frequencies, the alarm system will be completely cut off.

RFPlayer can also work on these two frequencies, usually enabling it to make home automation systems compatible with many home automation devices. However, an update has just been released, which adds the JAM alert function, the radio interference detection function. If RFPlayer detects the saturation of the wave it is processing, it will be able to issue an alert. There are two possibilities.

In the case of detecting a paper jam, Rfplayer will alert the system. Then, we can of course trigger scenarios, such as receiving alerts via email or SMS. One can also imagine triggering a wired siren to eliminate radio interference (for example, a wired siren connected to an IPX800), which is self-evident. Therefore, even in the event of interference, an alarm will be issued to prevent theft, even before the intrusion has been discovered.

The second possibility: use devices running Android: recyclable smartphones, tablets or TV boxes, and we find many of these devices today are cheaper. We insert Rfplayer, and then install the Jam Alert application:

The application is already available on Google Play and will be fully ready within a few days to send text messages (5 free, then packaged services will be provided, 5 text messages will be sent for 50 euros). If a paper jam is detected, the user will receive a text message to remind him. By using the Android system, RFplayer becomes a fully autonomous anti-jamming solution without any home automation system. It is even conceivable to use it as a nomadic solution: for example, after connecting to a smartphone, a security guard can wear it on his body to remind him to try the slightest interference, especially in a parking lot.

Important details to remember: RFPlayer will not detect interference from zwave, specific alarms or specific brand cars here. Regardless of the protocol and equipment, it can detect any interference on the 868Mhz and 433Mhz frequencies. My Jeedom system has RFPlayer and this Jam Alert function, so it can be used not only to know if my Zwave is stuck, but also to know my Somfy Protect alert. , And the two systems cannot communicate. This is the point of this new feature. With the help of the Android app, Rfplayer may be of interest to anyone equipped with a siren, even if they do not have a home automation system. RFPlayer adds extra security to ensure that the waves will not be disturbed, so the alarm system can operate correctly. Because even if some alarm systems claim to be protected from interference, the technology used to resist interference is still ineffective.