NSSDCA ID: 1962-049A-03
Mission Name: Alouette 1The purpose of the VLF experiment was to investigate the propagation characteristics of natural and manmade VLF signals. This experiment was a wideband high-gain receiver with a passband from 0.4 to 10 kHz using only the longest (45.7 m) sounder antenna. The receiver output, which sensed the electric field component of the signal strength, was maintained constant by means of an AGC loop. The standard VLF data form was a sonogram (graph) showing signals as a function of time and frequency. Whistlers and radio noise of various origins were observed in this region of radio frequencies. Performance had been nominal since launch, except for interference from the sounder which had not prevented observation of useful data. The sounder operation was most frequent, but a small percentage of observations were VLF only or both VLF and sounder.
Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office
Name | Role | Original Affiliation | |
---|---|---|---|
Mr. Frank H. Palmer | General Contact | Department of Communications/Communications Research Centre | |
Dr. H. G. James | Other Investigator | Department of Communications/Communications Research Centre | james@cancrc.dgrc.doc.ca |
Mr. Frank H. Palmer | Other Investigator | Department of Communications/Communications Research Centre | |
Dr. John S. Belrose | Principal Investigator | Department of Communications/Communications Research Centre |