Gmm-u5j is one of the newest members of the u5 series GPS module featuring “Anti-J.A.C.K”, or Anti-Jamming Assessment Command Feedback system: a powerful, easy to use jamming-detect and notification system designed specifically for critical asset protection and security.
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.
New Features in Gmm-u5j:
Anti-J.A.C.K.: (Anti-Jamming Assessment Command Feedback)
• Jamming Sensitivity: -50dBm (high sensitivity) & -40dBm (low sensitivity)
• Auto Jamming Sensitivity Selection based on Antenna Type (Active vs. Passive)
• Jammer Status Report via Customized NMEA and Hardware Pin Voltage Output
• Power Saving Mode for Jammer Detection
• Jammer Detection Power Consumption: 16mA typical (operation)
Antenna Advisor:
• Active /Passive Antenna Detection & Notification
• Open Circuit Detection & Notification
• Short Circuit Protection & Notification
Popular Form Factor:
• 22.4 x 17 x 2.2mm SMD
Low Power Consumption:
• 32 mA Acquisition, 26 mA Tracking (typical) without Jamming enabled
High Sensitive, Performance:
• MediaTek MT3329 Chipset, L1 Frequency, C/A code, 66 Channels
• -165 dBm Tracking (typical), TCXO design
• Position Accuracy:
