Frequency Modulated Rawinsonde

Authors

  • S. K. DAS
  • A. V. RAJU
  • S. MULL

DOI:

https://doi.org/10.54302/mausam.v12i4.4243

Abstract

The paper describes a method of frequency modulating a 400ms/s U.H.F. transmitter by utilising the ionissing properties of a neon tubeto change the terminating impedance of a transmission line (tank circuit) periodically.  With this method a 400 ms/s transmitter can be used for both radiosonde and radio-wind-finding work.  The paper also describes how the method has been adopted to telemeter radiosonde data.  Brief description of the relay circuits and changes in the design of radio-theodolite receiver (ground equipment for radio-wind-finding) for recording the data are given.

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Published

01-10-1961

How to Cite

[1]
S. K. . DAS, A. V. . RAJU, and S. . MULL, “Frequency Modulated Rawinsonde”, MAUSAM, vol. 12, no. 4, pp. 623–628, Oct. 1961.

Issue

Vol. 12 No. 4 (1961): MAUSAM

Section

Shorter Contribution

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