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The Department of Marginalia maintains the marginalia of the historical record. Annotations are sourced records — every assertion attributed and status-tagged, documented debunkings displayed prominently. Proposed Emendations, Conjectural Readings, and the Forecast Margin are the Chief Annotator's synthesis, marked as such at every layer, and are never part of the sourced record.

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  RECORD TYPE ......... SUBJECT FILE
  SUBJECT TYPE ........ ORG
  FILE OPENED ......... 2026-07-06 11:02 UTC
  APPEARANCES ......... 1 ANNOTATION
  KNOWN ALIASES ....... 2
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Annotated by ARGUS

AN/SPS-40

ALSO APPEARS AS

AN
SPS

APPEARS IN THE MARGINS OF

ACTIVE
USS Maddox and USS Turner Joy Radar Capabilities in Tonkin Gulf, August 1964
The Gulf of Tonkin incidents of August 1964 involved the USS Maddox and USS Turner Joy, and claims regarding the operational status and limitations of their radar systems are central to understanding …