A switched long-distance telecommunications service formerly provided for official Federal Government use.
Note: FTS has been replaced by Federal Telecommunications Service 2000 (FTS2000).

See FTS2000.

1. To supply a signal to the input of a system, subsystem, equipment, or component, such as a transmission line or antenna.
2. A coupling device between an antenna and its transmission line.
Note: A feed may consist of a distribution network or a primary radiator.
3. A transmission facility between (a) the point of origin of a signal, such… (Read More →)

In the encoder, the signal path from the input of the PCM-to-uniform-PCM converter to the output of the adaptive quantizer. In the decoder, the feed-forward path is the signal path from the input of the feed-forward inverse adaptive quantizer to the output of the synchronous coding adjustment block. [T1.310-1991]

1. The return of a portion of the output, or processed portion of the output, of a (usually active) device to the input.
Note 1: The feedback signal will have a certain magnitude and phase relationship relative to the output signal or the input signal. This relationship can be used to influence the behavior, such as the gain and stability,… (Read More →)

The signal path from the input of the bit-masking block to the output of the adaptive predictor. [T1.310-1991]

Signal distortion resulting from reflected waves in a transmission line that is many wavelengths long and mismatched at both the generator and the load ends.

A radio link from an Earth station at a given location to a space station, or vice versa, conveying information for a space radiocommunication service other than for the fixed-satellite service. The given location may be at a specified fixed point, or at any fixed point within specified areas. [NTIA] [RR]

The boundary of a trusted region [CESG].

The ability of features outside a trusted region to penetrate a fence - thus leading to a potential or actual breach of the System Security Policy [CESG].