k

Abbreviation for kilo (SI prefix for 10³). See International System of Units.

K

Abbreviation for kelvin(s). See thermodynamic temperature. 2. When referring to data storage capacity, 2¹⁰, or 1024 in decimal notation; however this usage of an upper case K is deprecated.

k-factors

In tropospheric radio propagation, the ratio of the effective Earth radius to the actual Earth radius. Note: The k-factor is approximately 4/3. 2. In ionospheric radio propagation, a correction factor that (a) is applied in calculations related to curved layers, and (b) is a function of distance and the real height of ionospheric reflection.

K-type patch bay

A patching facility designed for patching and monitoring of balanced digital data circuits that support data rates up to 1 Mb/s.

kT

See noise power density.

KA9Q

A popular implementation of TCP/IP and associated protocols for amateur packet radio systems.

Kalman filter

A computational algorithm that processes measurements to deduce an optimum estimate of the past, present, or future state of a linear system by using a time sequence of measurements of the system behavior, plus a statistical model that characterizes the system and measurement errors, plus initial condition information.

Kbps

Kilobits per Second

KBps

Kilobytes per Second

KDC

Abbreviation for key distribution center.

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