An Improved Cosmic-Ray Radio Sonde

Abstract

The technique of the radio transmission of cosmic‐ray information from the stratosphere has been improved as a result of field experience. The instrument described herein is believed to be a definite improvement over the previous instrument. The scaling down of the cosmic‐ray counts is now done at the ground station instead of at the transmitter. This necessitated a new means of modulating the transmitter, a new receiver, and a new recorder.