A Cosmic-Ray Radio Sonde

Abstract

The cosmic‐ray radio sonde described in this paper was used for observations in the stratosphere near the magnetic equator. The instrument can be used for single counters or coincidences up to fourfold. It includes the necessary amplifiers and scaling circuits to operate a relay which keys the radio‐transmitter. High voltage for the counters is provided by a buzzer and transformer unit. Small storage batteries are used for power to operate the unit for about three hours. Pressure and temperature signals are sent at eight‐minute intervals. The complete instrument ready for flight, weighs about 3300 grams. The receiving equipment consists of a super‐regenerative receiver with the signal output recorded on a paper tape.