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Radio Beacon

NSSDCA ID: 1965-032A-01

Mission Name: BE-C
Principal Investigator:Mr. Leo J. Blumle


A radio beacon radiated a plane-polarized signal at 20.005 MHz, 40.010 MHz, 41.010 MHz, and 360.090 MHz, all harmonics of 1.00025 MHz. The plane of polarization of the three lower frequencies underwent an appreciable number of rotations due to electron concentration. The polarization plane of highest frequency did not rotate appreciably. Several methods were used to analyze these rotations and determine the total electron content between the satellite and a ground receiver. The beacons were on until the satellite operation terminated on May 6, 1968. On February 13, 1970, the beacons were again turned on to replace the 64-064A (BE-B) beacons which had completely failed by the end of January 1970.

Alternate Names

  • BE-C/RadioBeacon
  • Ionosphere Beacon


  • Space Physics: Ionospheric Studies

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Mr. Leo J. BlumlePrincipal InvestigatorNASA Goddard Space Flight
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