Digital telemetering and control for an irrigation system using multiaperature magnetic logic

This paper reviews the operational and design features of a digital telemetering and control system installed to measure and control water flow in the Salt River Project system. Solid-state devices and multiaperture magnetic logic elements are used throughout the design providing a fail-safe error-detecting highly accurate telemetering and control system capable of withstanding severe environmental conditions. A VHF (very-high-frequency) radio communications channel is used for data transmission between the master and remote stations.