Category Archives: Hardware Information

Topics related to AVL hardware and GPS tracking transponders

COCOM GPS Tracking Limits

The U.S. Department of Commerce requires that all exportable GPS products contain performance limitations so that they cannot be used in a manner that could threaten the security of the United States. The following limitations are implemented on the Trimble Copernicus receiver receiver. Immediate access to satellite measurements and navigation results is disabled when the […]

Battery Comparison for GPS Tracking Device

Overview Many different types of batteries may be used with Raveon’s M7 series of GPS transponders.  This Technical Brief describes how well some common battery types will work with the M7 radios. Actual battery life will vary based upon how often the M7 GPS transponder transmits, but the data in this Technical Brief may be […]

M7 Heatsinking and Duty Cycle

The M7 transceiver has a 5-watt RF power output rating.  In a typical application the units is in Standby or Receive mode most of the time.  A small fraction of the time, it is transmitting.  But when it transmits, the M7 begins heating up, dissapating about 8 watts of heat.   This depends upon the RF […]

Trimble Copernicus GPS Receiver

Internal to Raveon’s M7 series of GPS transponders is a GPS receiver module made by Trimble.  It is their Copernicus II GPS receiver module.  Many of the M7’s performance specifications are driven by the use of this receiver module.  The Copernicus II is ideally suited for vehicle tracking systems, AVL, asset tracking, and personal location.   Details […]

M7 I/O Connections

The M7’s I/O Connector On the front of the M7 series of transponders, is an Input / output (I/O) connector used to configure the unit.  This I/O connector supports RS232 serial data (422 optionally), as well as digital input and output. The RS232 9-pin serial I/O connector is a female 9-pin D-subminiature connector having the […]