The Gulton Noise Analysis Data System is designed to select, analyze, and transmit data from a towed vehcile to the towing ship, utilizing only four conductors of the tow cable. Twelve data-acquisition channels are available which are monitored at the on-deck console of the system. Sensor inputs to the data channels from the underwater unit include three accelerometer, three hydrophone, and six potentiometric transducers. The input channels are monitored sequentially, with the selection of a specific channel for analysis controlled by the operator at the console. Data is stored on magnetic tape and simultaneously printed out by the USL Automated Data System ADS.