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Sub-Space Transmitter

The sub-space transmitter is an example of Tollan technology. Based on principles of advanced physics and the true nature of space, it uses a beam of energy to instantly communicate information across vast distances. The Tollans used the device to contact the Nox from Earth. The SGC acquired a sub-space transmitter from Martouf and has used it to contact the Tok'ra and the Tollans.

Cross Reference: Tollans

Episode Reference: Enigma, Serpent's Song, Show and Tell