UL has various meanings in the Space category. Discover the full forms, definitions, and usage contexts of UL in Space.
A user interface is the means in which a user controls a software program or hardware device. For example, a software interface may include windows, icons, menus, and buttons that allow the user to interact with the program. This is also known as a graphical user interface, or GUI.
SpaceThe radio signal transmitted to a spacecraft from Earth. Uplink The transmission link from an earth station to a communications satellite. Uplink in a cellular system, the commu-nication link from the mobile to the central base station. also downlink.
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