GPS L1 (1570 to 1620 MHz) is the oldest and most widely used signal band in the global positioning system. As the first band available for civilian use, L1 provides global coverage and wide accessibility. More than 90% of civilian GPS devices rely on the L1 band to operate, and are widely used in navigation, smart device positioning (such as mobile phones, car navigation systems), logistics tracking and other fields. However, due to the lower frequency, L1 has weak signal stability in high-density obstacle environments and is susceptible to external interference.

In response to the signal management needs in specific scenarios, GPS jammer came into being. By jamming L1 band signals, it provides users with a means to protect privacy and prevent unauthorized tracking or monitoring, while giving users flexible signal control capabilities. Depending on the use requirements, the GPS blocking device can be a simple car cigarette lighter plug-in or a powerful and complex military jammer system.

Working principle of GPS jamming device:

Just connect the jamming device to a power source (such as a vehicle cigarette lighter or USB port) and place it near the target device. After activation, the jammer will emit a specific signal within a range of 5-10 meters (or even further), covering the L1 band, blocking the reception of GPS satellite signals, and causing positioning failure. Once the signal blocker is turned off, the GPS device will return to normal.

Why choose a GPS Scrambler that blocks the L1 band?

The core concept of the L1 jammer is not to completely block GPS, but to provide a limited and precise signal management method that does not destroy the entire navigation ecosystem and gives users a certain degree of autonomy. Compared with multi-band jammers, it has unique advantages:

Privacy protection: Only the L1 band is blocked to avoid interference with L2, L5 and other bands used by military, aviation or emergency services, ensuring that key services are not affected, and taking into account practicality and safety.

Wide adaptation: Since the L1 band covers the vast majority of civilian GPS devices, jamming L1 is sufficient to cope with most daily tracking and positioning scenarios.

Accurate positioning: Focusing on the most mainstream frequency bands at present, the gps tracker jammer achieves complex needs in a simple way, while reserving space for future technology upgrades.