An identification beam was a method whereby a ship could be identified.

In 2267, the USS Enterprise encountered a ship in Nadorian space which did not broadcast an identification beam. (TOS novel: Gemini)

References

• TOS episode: "Mudd's Women"
• TOS novel: Gemini
• ENT novel: The Good That Men Do

External link

• Identification beam article at Memory Alpha, the wiki for canon Star Trek.