A terminal device searches for a satellite signal by performing a correlation process over a predetermined first accumulation time within a predetermined frequency range in units of search frequencies at specific intervals. This is achieved by illuminating water flowing upward using a light source directing its light output upward through the water. These results are inputted to a computerized data handling system for data collection, storage and analysis for comparison to predetermined acceptable ranges to show deviation from acceptable ranges. The processor monitors breathing sounds from a microphone and causes a presentation in a second portion of the display device representing an actual breathing pattern of a user.