A subspace beacon was an omnidirectional repeating signal transmitted in the subspace realm.
A standard Starfleet combadge could be modified to emit a subspace beacon.
In an alternate timeline, Kathryn Janeway activated the subspace beacon in her combadge when she and Tom Paris were thrown back in time on an unknown Class M planet. The senior staff of the USS Voyager used the beacon to locate and attempt to retrieve Janeway and Paris. (VOY: "Time and Again")
Federation escape pods were equipped with subspace beacons, allowing personnel to track evacuating crew. (VOY: "Year of Hell")
Subspace communication |
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amplifier • antenna • bandwidth • beacon • frequency • hyper- • interference • interplexing beacon • link • log • monitor • neural transceiver • relay • relay network • relay station • signal • static • transceiver • transmission • transmitter • transponder • wide-band |