Tracking equipment improves service and aids in scheduling. Computerized time-tracking systems help dispatchers queue up trucks at the job site with maximum efficiency and will help dispatchers locate trucks. Time-tracking systems are an add-on to scheduling software. Tracking systems store data from previous deliveries and cut radio calls from dispatchers. Mounted in the cab of a delivery truck, a data transmission unit interfaces with the existing radio. Benefits are increased driver productivity, improved working conditions for dispatchers, and data recording may be used to solve payment disputes. KEYWORDS: radio, tracking