definition: A device used to increase the strength of electrical signals.

definition: Path for electrical communication between two facilities. Also called a circuit, link or path.

definition: A device used to unscramble encrypted or "scrambled" television signals.

definition: Occurs when a satellite passes through the line between the earth and the sun or the earth and another satellite, resulting in a service outage.

definition: Process of electronically ciphering a signal so it cannot be received without a decoder.

definition: When the sun passes behind a satellite in relation to the earth and the sun's energy momentarily interferes with the satellite signals. Occurs two times each year during spring and fall equinox.