Index - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A-Z
KEYSET - A telephone instrument having capacity for two or more telephone lines which are accessed by depressing a button (key) on the face of the set.
Ka BAND - Microwave radio frequencies in the region of 20 to 30 gigahertz, portions of which are used for local microwave " bypass ," notably the region near 23 gigahertz , while future satellite applications have allocations reserved as well.
KEY SYSTEM - The equipment utilized to provide features associated with key sets, including keysets, multipair cable (rapidly disappearing from the scene), key service unit, distribution blocks, and miscellaneous devices.
KSR - Telegraphic nomenclature for "Keyboard Send/Receive," denoting a terminal capable only of transmitting and receiving on line; not able to store sent or received messages. Contrast with ASR .
Ku BAND - Microwave radio frequencies in the region of 10 to 20 gigahertz, portions of which are used for satellite (notably VSAT ) operations at 12 to 14 gigahertz and local terrestrial " bypass " at 10 and 18 gigahertz.