Difference between revisions of "Ring around"

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Latest revision as of 00:19, 25 February 2009

4-3-485

Ring around (in secondary radar)

1. The undesired triggering of a transponder by its own transmitter.

2. The triggering of a transponder at all bearings causing a ring presentation on a P.P.I.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)