The Gosse Field is the foundation of interstellar travel and communication. Created by Christian Gosse and his research team it gave humanity the ability to surpass the faster than light barrier. While it took humanity many centuries to apply this technology to physically traverse the vast interstellar distances, the Gosse field allowed for instant communication within the Earth solar system.
There are two types of Gosse transceivers that are used, broad-spectrum and focused. Broad-spectrum transceivers are used to beam signals in a sphere around the transceiver itself. These are shorter ranged than a focused transceiver and can be detected by any other Gosse transceiver within range. Most commonly broad-spectrum transceivers are used for emergency beacons and signals as well as for entertainment. Focused transceivers are used for direct communication between two points. This type of transceiver requires a connection to a ship’s mainframe and the Receiver Locator System (RLS) that is stored there. This system stores the frequency and stellar location of almost all static registered transceivers available. Without access to this system the sender would have to know the stellar location data (parsec, system, and planetary identifiers) as well as the frequency that the receiver is set to. While not impossible to find out, it is a research intensive task.
The RLS is typically updated each time the vessel docks at a port as part of the regular maintenance and flight status routine. It is possible for transceivers to be ‘unregistered’, a practice that is common among military and pirate vessels. Each major government maintains their own RLS with parts of the system available for commercial and private owners and other parts restricted for governmental and military use.
Shipboard transceivers are a bit different which is why Gate plans for starships are important. When not translated into H-space, most shipboard transceivers are connected to the local RLS network. While in H-space the only way a transmission can find its intended vessel is by beaming it through their sending or receiving Gate.