- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
- Company Profile:
ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
The logic or algorithm that implements a particular security enforcing or security relevant function in hardware and software.
Industry:Telecommunications
The locus of points surrounding a transmitter where the predicted median field strength of the signal from that transmitter is the maximum field strength that is not considered to cause interference at the service contour of another transmitter.
Industry:Telecommunications
The locus of points at which direct rays from an antenna are tangential to the surface of the Earth. Note: If the Earth were a perfect sphere and there were no atmospheric anomalies, the radio horizon would be a circle. In practice, the distance to the radio horizon is affected by the height of the transmitting antenna, the height of the receiving antenna, atmospheric conditions, and the presence of obstructions, e.g., mountains.
Industry:Telecommunications
The location of one or more local switching systems; a location where customer loops converge.
Industry:Telecommunications
The location at which there is a transition between a telecommunications carrier facility and the local lines serving the individual customers.
Industry:Telecommunications
The locating of a radio transmitter by bearings taken from two or more direction finding stations, the site of the transmitter being at the point of intersection. 2. The location of a ship or aircraft by determining the direction of radio signals coming to the ship or aircraft from two or more sending stations, the locations of which are known.
Industry:Telecommunications
The load connected to a transmission line, circuit, or device. Note: For a uniform transmission line, if the termination impedance is equal to the characteristic impedance of the line, wave reflections from the end of the line will be avoided. 2. In hollow metallic waveguides, the point at which energy propagating in the waveguide continues in a nonwaveguide propagation mode into a load. 3. An impedance, often resistive, that is connected to a transmission line or piece of equipment as a dummy load, for test purposes.
Industry:Telecommunications
The live exchange of information among persons and machines remote from one another but linked by a telecommunications system. Note: The telecommunications system may support the teleconference by providing audio, video, and data services by one or more means, such as telephone, telegraph, teletype, radio, and television.
Industry:Telecommunications
The lines of force of a magnetic field. 2. Obsolete synonym for radiant power.
Industry:Telecommunications
The line-of-sight distance between two points, not at the same level relative to a specific datum. Note: An example of slant range is the distance to an airborne radar target, e.g., an airplane flying at high altitude with respect to that of the radar antenna. The slant range is the hypotenuse of the triangle represented by the altitude of the airplane and the distance between the radar antenna and the airplane's ground track (the point on the Earth at which it is directly overhead. ) In the absence of altitude information, the aircraft location would be plotted farther from the antenna than its actual ground track.
Industry:Telecommunications
