Dtf sites

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Sunlight exposure can change the dielectric properties of the antenna housing, causing the antenna bandwidth to drift.Antennas and transmission lines used on-board ships and aircraft may be degraded due to salt water corrosion.

Transmission lines are typically the most common failure point.Eventually these problems cause intermittent outage and failures at exactly the times they are least welcome, such as during storms or during extreme periods of cold.With DTF available, the root causes of RF problems can be identified.The FDR measurement technique requires a swept frequency input to the transmission line.An inverse FFT (Fast Fourier Transform) is performed on the reflected signals transforming this information into the time domain.

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