Environmental data acquisition telemetry system

The Environmental Data Acquisition Telemetry System is a versatile, flexible and economical means to accumulate unattended data from multiple sensors at remote locations over an extended period of time. The data are normally stored on punched paper tape for data reduction and analysis by computer. The basic system consists of a master station and as many as 15 remote stations which can be located as far away as 30 miles (line-of-sight) from the master station. The master station sequentially interrogates the remote stations, and converts the received data to a digital format and stores the data on punched paper tape. The remote station receives the interrogate signal which initiates the transducer sequencing. Various parameters may be measured and the information transmitted via an FM radio link to the master station for processing. Options such as magnetic tape storage, remote display and/or recording, variable scan rate, and additional sensors at the remote station are available.