Title :
Range-adjusting radiosonde recorder
Author :
Beggs, George E.
Author_Institution :
Leeds and Northrup Company, Philadelphia, Pa.
Abstract :
A RADIOSONDE is the air-borne unit of an air-to-ground telemetering system. This equipment transmits audio frequencies in time sequence, which represent temperature and humidity, and a fixed reference signal, covering a range from 8 to about 200 cycles per second.
Keywords :
Automatic frequency control; Calibration; Frequency conversion; Humidity; Radiofrequency integrated circuits; Temperature measurement;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1949.6443233
