RedPort Global, providers of marine satellite data, voice routers and services, launch GPS tracking service with the RedPort Optimizer. When connected to a GPS-enabled satellite phone or terminal, Optimizer works as a GPS Satellite Tracker , and can transmit the device’s GPS location at user-defined intervals, working with select tracking services to let users view GPS locations online or input them directly into their existing tracking systems. “Reliable, affordable GPS vessel tracking is a critical part of any vessel operations – from the smallest boat to the largest ship,” said Dr.