A radiosonde is a unit for use in weather balloons that measures various atmospheric parameters and transmits them to a fixed receiver. A frequency band[?] at 403 MHz is reserved for radiosondes.
The weight of a radiosonde is typically 250 grams. A major manufacturer is Vaisala[?] in Finland.
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... 1545 the opening of the Council of Trent began the Counter-Reformation, and Charles won to the Catholic cause some of the princes of the Holy Roman Empire. He also ...