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: <3.0M 50% CEP

·         DGPS (WAAS/EGNOS/MASA/GAGAN)

·         Multi-path Compensation ; E-GSM-900 Band Rejection

Rich Interface and Protocol Support:

·         UART (TTL), USB Interface Support; 1PPS Support

·         NMEA 0183 and PMTK protocol support

E911, RoHS Compliance