The area where the coverage contour of an FM translator or booster station is within the protected contour of the associated primary station (i.e., predicted
0. 5 mV/m contour for commercial Class B stations, predicted
0. 7 mV/m contour for commercial Class B1 stations, and predicted 1 mV/m contour for all other classes of stations). [47 CFR
7
4. 1201]

A signal unit that is transmitted when there are no message signal units or link status signal units to be transmitted. It contains only error control and delimitation information. [T1.226-1992]

A cable that has a nonhygroscopic material, usually a gel, inside the jacket or sheath.
Note 1: The nonhygroscopic material fills the spaces between the interior parts of the cable, preventing moisture from entering minor leaks in the sheath and migrating inside the cable.
Note 2: A metallic cable, such as a coaxial cable or a metal waveguide, filled with… (Read More →)

Abbreviation for first-in last-out.

In electronics, a device which transmits only part of the incident energy and may thereby change the spectral distribution of energy:
(a) high pass filters transmit energy above a certain frequency;
(b) low pass filters transmit energy below a certain frequency;
(c) band pass filters transmit energy of a certain bandwidth;
(d) band stop filters transmit energy outside a specific… (Read More →)

A method of encoding information for digital transmission in which (a) a binary 0 is encoded as a +90° change in the carrier phase and a binary 1 is encoded as a -90° change in the carrier phase, and (b) abrupt phase transitions are smoothed by filtering or other functionally equivalent pulse shaping techniques.

A last-choice trunk group that receives overflow traffic, may receive first-route traffic and for which there is no alternate route. There are various types of final trunk groups, differentiated by the type of traffic that they carry. [T
1. Rpt 11-1991]

A computer-operating-system command for accessing limited network-user-account information.
Note: Finger is limited to providing information such as the full name of the account holder and address information, intentionally made public by the account holder. Finger is also used to establish the existence of an address and to discover whether or not the account is currently logged on.

1. In an information transaction, a call in which the call originator or call receiver terminates the communication and goes on hook, i.e., hangs up.
2. In an information transfer transaction, the termination of the information transfer phase.

Acronym for Federal Information Processing.