Ringaround

In telecommunication, the term ringaround has the following meanings:

  1. The improper routing of a call back through a switching center already engaged in attempting to complete the same call.
  2. In secondary surveillance radar, the presence of false targets declared as a result of transponder interrogation by side lobes of the interrogating antenna.

References
  •  This article incorporates public domain material from the General Services Administration document: "Federal Standard 1037C".
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