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The technology used by OPTIMA was first developed for use in military airborne radar warning receivers, but has been adapted through the development ol proprietary Frequency independent Coupling™4 (FIC)'“ Circuitry to work In television applications. One of the key characteristics ol Frequency Independent Coupling and the OPTIMA Antenna is thal the requirement for adjustment of the antenna as you change channels is greatly reduced. You will notice this In your day to day use of the antenna, whe