Abstract: The present invention relates to a system, method and apparatus for transmitting data reports at adjustable reporting rates based on detected rates of change in the heading of a tracked asset. According to a preferred embodiment, upon detection of a heading change, the device of the present invention may preferably power a location detection device (e.g., a GPS receiver or the like) to determine an accurate location. At the same time, the asset device may preferably monitor and store both the current heading and the rate of change of the heading. Based on the detected rate of change of the heading, the system may preferably select and update a report frequency based on a lookup table. Preferably, the lookup table may be based on a correlation between a given rate of heading change and predetermined temporal sample rates. According to a preferred embodiment, the higher the rate of change in heading may correspond to a higher temporal sample rate.