GlobalTop Technology… Jukin’ The Jam (GPS)

[SatNews] Asset protection and security is a crucial need for GPS product providers…

GlobalTop Technology Inc., a market leader in Mediatek chipset based GPS module, has expanded their u5 family series. The Company has introduction the Gmm-u5j, a unique standalone GPS module featuring Anti-J.A.C.K.™, or Anti-Jamming Assessment Command Feedback, for critical asset protection and security. Even though GPS is depended upon by millions worldwide for its positioning and timing capabilities, GPS signals, after traveling through 20,000 kilometers of unpredictable atmosphere, are weak and prone to be interrupted by the simplest GPS jammer. With the rapid increase in the availability of low-cost, highly illegal GPS jamming devices, there exists a major security hole that compromises the safety of traceable assets or fleet workers. Insurance companies around the world have reported a significant drop (up to 20 percent) in stolen vehicle recovery due to the use of GPS jammers.

Anti-JACK™ is a powerful, easy to use GPS jammer detection and notification system designed to enhance security with double-layer of protections. Anti-JACK™ is able to alert the security system embedded with Gmm-u5j GPS receiver on nearby GPS jammers through its customized NMEA protocol, or via direct voltage level with dedicated hardware pin out. System integrators can transmit the protocol to a cellular radio of his choice to remotely alert users, or have it connect to a physical alarm or siren that blast out loud when the system is tempered with. Using its special circuitry, Anti-JACK™ is able to provide two levels of jamming sensitivity that can automatically adapt to different antenna setup (active or passive antenna). A total of four different GPS jammer detection mode is offered, including a smart power saving mode that reduces power consumption used by jammer detection when the GPS signal reception is above acceptable. Last but not least, all Anti-JACK™ settings can be easily toggled with simple packet commands. In addition, Gmm-u5j comes with “Antenna Advisor”, a smart antenna system that enables the GPS module to detect and notify external active antenna connection. It also features antenna short circuit protection to safeguard the module from being damaged by short circuiting at the external antenna I/O end. Antenna Advisor is very easy to implement and requires only a single additional resistor.