There's a reason why it's called organized crime: criminals have more and more resources at their disposal to carry out highway robberies. One of the most dangerous is the use of jammers. But do you know how they work and how to prevent a robbery where this device is used?

Understanding how jammers work will help you protect yourself and find the best technology to thwart a theft in which the signal from your unit is blocked. Read on to find out more.

What is a jammer?

Imagine you are talking to someone on the street, and suddenly a train passes right next to you. The noise of the train makes communication practically impossible, as it prevents the other person from hearing what you are saying. Jammers work in a similar way: they are electronic devices that emit electromagnetic pollution on multiple channels, such as GPS, cell phones, and radios, acting like the "train" in the previous example and completely blocking the signal.

How do anti-jammers work?

It is truly impossible to counteract the effect of a jammer: the signal cannot be returned to the equipment while the jammer is turned on. So, what does an anti-jammer do? Anti-jammers are systems installed in the unit that automatically detect the presence of a jammer and block the unit so that it cannot be moved, meaning that criminals cannot take it away.These classic anti-jammers come with their own problems. For example, there are places where jammers are used legally, such as some prisons, booths, or borders. Less sophisticated anti-jammers even consider the absence of a signal to be a jammer. These situations cause false alarms and waste a lot of time for operators. In addition, most traditional anti-jammers lock the unit for a few hours, without the possibility for the operator to unlock the unit safely on site. This results in additional costs and wasted time by requiring tow trucks and additional technical services.

What is the difference between this and an advanced anti-jammer system such as Logitrack?

At Logitrack, we identified these two main problems and developed our own advanced anti-jammer system to solve them. The main differences between a traditional anti-jammer and Logitrack's advanced anti-jammer protection system are: On-site unlocking with dynamic keys. Once it has been confirmed that there is no risk of theft, the operator can unlock the unit locally using our keyboards with dynamic keys, similar to a bank token.

Continuous operation

Through an extension button combined with strict security protocols, the operator is able to identify false alarm situations and continue their journey without unnecessary interruptions.

Anti-tampering system

Our anti-jammer system features anti-sabotage technology through decoy wiring and automatic throttle locks in the event of cable cuts, power loss, or attempts to bypass cables.

According to figures from the Executive Secretariat of the National Public Security System, in 2024 alone, more than 11,000 cargo thefts were reported in the country. Logistics security experts warn that in more than 80% of cases, criminals used signal jammers to neutralize satellite tracking, communication, and remote response systems.

One of the most recent methods detected on Mexican highways involves the use of jammers hidden in vehicles that overtake cargo units, creating areas of interference before carrying out the assault. The use of drones modified with jammers has also emerged, which approach vehicles to disable their devices without the need for physical contact. This scenario reaffirms the need for active anti-jammer technology and intelligent monitoring systems, such as those offered by Logitrack, which allow for immediate reaction to attempts at electronic sabotage. If you would like to learn more about Logitrack's advanced security systems for freight transport.