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Title: Spread Spectrum Radio Systems In Efm And Scada
Author: King Peon
Source: 2003 International School of Hydrocarbon Measurement
Year Published: 2003
Abstract: Communications is an important part of SCADA and EFM systems. Data generated by the RTUs (Remote Terminal Units) and flow computers must be transferred from the field back to the host computer so it can be distributed and used by different parties. Various types of communication equipment systems are used in SCADA and EFM systems. This equipment consists of modems that interface to dial up networks or leased lines, licensed radios, satellite and microwave. Licensed radios are data radios that use dedicated frequencies to transmit data back and forth. This type of radio requires an FCC license to operate. As these licenses for dedicated frequencies get more difficult to obtain in the United States, spread spectrum radios are becoming very popular in SCADA and EFM networks.

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