Kept on Wikipedia: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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