This document revised 30/04/14; new information highlighted in blue.

Item #: SCP-2998

Object Class: Euclid

Special Containment Procedures: The Foundation has modified radio frequency and electronics manufacturing standards worldwide to avoid civilian production of devices capable of receiving SCP-2998. Internet, radio, and print communications monitoring efforts by relevant Foundation departments are to be on alert for images or descriptions relating to SCP-2998. Additionally, personnel and D-class are to be exposed to the signal associated with SCP-2998 in order to determine eligibility for Project Rosetta and permanent assignment to SCP-2998; no other method has thus far been developed of determining the presence of a functional Rosetta cluster in humans.

The frequency on which SCP-2998 is broadcast is to be monitored regularly for any change in SCP-2998 content. Additionally, individuals determined to be Rosetta-positive are to be exposed to SCP-2998 for at least twelve hours of every day, followed by debriefing to gather more intelligence regarding SCP-2998 and the species responsible for its generation. All extraterrestrial vessels and probes are to be modified covertly to include equipment designed to monitor for the presence of SCP-2998 off-world. Research to determine more information regarding the source of SCP-2998 and further background behind its content is to continue as a Class 2 priority effort.

Description: SCP-2998 is an electromagnetic signal with a constant frequency of 2485 MHz. Its power and origin cannot be determined; the signal appears to be invariably present at all locations throughout the known solar system. The signal seems to lack a single point of origin; rather, current analysis suggests SCP-2998 is being broadcast with a power of 1.86 mW, which in combination with the large coverage area of SCP-2998 suggests that the signal is being broadcast in a fashion that transcends 4-dimensional space, emerging into conventional space in a three-dimensional grid pattern with transmission points spaced approximately three meters apart. As the signal has been found to be ubiquitous by every receiver capable of detecting it both on- and off-Earth, it is presently believed that SCP-2998 may be broadcasting throughout the universe simultaneously.

The signal was believed initially to be an anomalous but innocuous white noise present at that frequency; minor variances suggested the presence of some other information within the signal, but no means to decode SCP-2998 were developed until 2011, and more complete methods of determining SCP-2998's full content have been developed since.

The signal was found to contain a digital video transmission with a monaural track. The video appears to depict a humanoid entity of an unknown species floating in a dark room; while no context is provided for the image, the reflexive body language and high-pitched noises being emitted by the entity seem to suggest it is in extreme physical distress. No other entities have been seen within the video feed and no external source of harm has been noted. However, certain features within the image suggest that some sort of abnormal telekinetic phenomena are occurring; the entity frequently appears to be pushed or moved, and brief images of background objects within the room suggest that some gravitational field is present, implying the entity's midair position is not due to zero-gravity conditions and the entity is being held in place by an unknown force.

In addition to the video and audio tracks, an additional component of the signal is perceivable only by individuals possessing a specific abnormal nerve bundle connecting Brodmann areas 41 and 42 to the dorsal amygdala in the temporal lobe of the brain. Individuals possessing the nerve bundle report hearing an unusual high-pitched sound alongside the monaural audio of SCP-2998, then begin experiencing a form of mesial temporal lobe epilepsy characterized by complex partial seizures. During seizures, affected individuals begin speaking in a form of glossolalia, speaking near-constantly without any apparent meaning. The seizures will continue as long as the individual is exposed to the SCP-2998 audio track; the glossolalia will develop over time into a more coherent messages. The nerve bundle has been nicknamed the "Rosetta cluster" by Foundation Medical's research division, due to the ability of individuals in possession of it to "translate" the signal's otherwise indecipherable components. Both individuals thus far found to be in possession of the Rosetta cluster have retained some memories from their experiences.

Addendum 2998-A: Debriefings of Rosetta-positive personnel after initial exposure to SCP-2998

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