By a sample record we show that the radio beacon experiments which utilize the Faraday rotation technique and the scintillation observations can be used to observe equatorial ionization bubbles. In a two-hour period 5 isolated bubbles have been identified. The depleted total electron content for one such bubble is 2.2¿1016 electrons/m2 and the east-west dimension is about 72 km. This translates to a total depletion of 1.6¿1021 electron per meter in the north-south direction.