Car alarm is the most important part of the security system, so you need to choose it wisely. It’s no secret that a brand new, yes, and not so new, car often becomes a tasty morsel for those who live from thefts. So, how can you protect your Swallow so that she can stay with you as long as possible? Of course, purchase and install a two-way alarm with feedback from our website .
See this article about one-way and two-way alarms, features and advantages of feedback alarms.
Single-sided or double-sided: what's the difference
As you can guess from the names, the first involves one-way transmission of commands from the user to the car via a radio channel, and the second implies the possibility of feedback between the car and the driver. And this ability to receive signals on a key fob costs additional money, so two-sided options are significantly more expensive than one-sided ones.
As practice shows, it is not worth saving on alarm systems. After all, scammers have long learned to read commands for one-way signaling. For these purposes, they have such a “toy” as a code grabber, with its help the necessary combination of data is intercepted, stored and, in the absence of the driver, supplied to the car. There is probably no need to remind you exactly what these commands are - opening and closing the hood doors, siren operation, remote control of the central locking, shock sensor, engine blocking. Having fallen into the hands of a fraudster, the car, “suspecting nothing,” opens up to him completely.
Therefore, if you do not want to take risks and are committed to comprehensive, reliable protection of your car when you are away from it for a long time, choose a two-way alarm system with feedback. It is generally accepted that one-way options are more suitable for those who leave their car for a short time and only in well-guarded parking lots.
What is feedback signaling
Alarm with feedback is high-class equipment that can protect against theft almost 100 percent. Especially if we are talking about an expensive branded option, for example, StarLine, Pandect, AMS, Pandora, Sigma, Fort.
The user receives information on the key fob, which is equipped with a liquid crystal display. It is possible to receive data about the condition of the car on a smartphone. Notifications are sent if the car window is broken, the doors are opened, or the hood is raised. It is important that we are not only talking about safety features, but also about comfort options. With the help of such an “assistant” you can easily start the engine remotely to warm up the interior, set up alerts about the operation of various sensors and much more.
Advantages of closed-loop signaling
The main advantage of car alarms with feedback is the ability to not only transmit, but also receive commands via radio: from the key fob to the main unit of the car, and from the main unit to the key fob or smartphone. It is important that this happens in real time, and transmission is possible over a fairly large distance: up to one and a half kilometers.
The operating range parameter affects the cost of the equipment. But another advantage of two-way signaling is considered more significant: the commands here are not based on primitive signals of the same type, which can easily be considered a code grabber, but on data packets that can only be calculated analytically, and not immediately.
Car alarms that are invulnerable to the actions of intruders - alarms with interactive signal coding. In this case, to issue each command, an individual data packet is generated, which is not stored and is used when “communicating” between the machine and the key fob only once, so it is impossible to intercept it. Car alarms with feedback and dialogue coding are considered the most reliable and prestigious.
