Equipment, called as Es Interference Canceller, which compensates the TV picture impaired by Es interference waves due to the reflection by sporadic-E ionospere, is developed for TV relay stations. Experiment and theoretical analysis are made and more than 40 dB interference wave suppression is achieved. When the interference wave is a sigle, the picture is almost perfectly compensated. Even when multiple waves, more than 1 grade improvement is attained.
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