- 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.
Irradiance per unit wavelength interval at a given wavelength, usually expressed in watts per unit area per unit wavelength interval.
Industry:Telecommunications
Irregular scattered patches of relatively dense ionization that develop seasonally within the E region and that reflect and scatter frequencies up to 150 MHz. Note 1: The sporadic E is a regular daytime occurrence over the equatorial regions and is common in the temperate latitudes in late spring, early summer and, to a lesser degree, in early winter. Note 2: At high, i.e., polar, latitudes, sporadic E can accompany auroras and associated disturbed magnetic conditions. Note 3: The sporadic E can sometimes support reflections for distances up to 2,400 km at frequencies up to 150 MHz. Synonym sporadic E propagation.
Industry:Telecommunications
Irregular scattered patches of relatively dense ionization that develop seasonally within the E region and that reflect and scatter frequencies up to 150 MHz. Note 1: The sporadic E is a regular daytime occurrence over the equatorial regions and is common in the temperate latitudes in late spring, early summer and, to a lesser degree, in early winter. Note 2: At high, i.e., polar, latitudes, sporadic E can accompany auroras and associated disturbed magnetic conditions. Note 3: The sporadic E can sometimes support reflections for distances up to 2,400 km at frequencies up to 150 MHz. Synonym sporadic E propagation.
Industry:Telecommunications
Is the name used to describe the center which administers and maintains Data Networks (e.g., X. 75 Gateways. )
Industry:Telecommunications
Is where an individual circuit exceeds the transmission limits or where the quality of service is diminished. A circuit is also impaired if its signaling functions (e.g., seizure, disconnect, ANI) is experiencing intermittent failures.
Industry:Telecommunications
Is where an individual circuit will not function in service (e.g., open, shorted) or cannot transmit address signaling in either direction.
Industry:Telecommunications
ITAR are the regulations covering the exporting of weapons and weapons related technology from the United States. For some strange reason, the government claims that data encryption is a weapon and comes under the ITAR regulations. There is presently a move in Congress to relax the section of ITAR dealing with cryptographic technology.
Industry:Telecommunications
Jamming accomplished by transmitting a band of frequencies that is large with respect to the bandwidth of a single emitter. Note: Barrage jamming may be accomplished by presetting multiple jammers on adjacent frequencies or by using a single wideband transmitter. Barrage jamming makes it possible to jam emitters on different frequencies simultaneously and reduces the need for operator assistance or complex control equipment. These advantages are gained at the expense of reduced jamming power at any given frequency.
Industry:Telecommunications
Jamming in which (a) a narrow frequency band of jamming energy is repeatedly swept over a relatively wide frequency band, (b) the sweep rate is such as to be on any given frequency only long enough to accomplish its jamming task, returning to that frequency again before the expiration of the jammed circuit recovery time. Note 1: Sweep jamming combines the advantages of both spot- and barrage-jamming by rapid electronic sweeping of a narrow band of jamming signals over a broad frequency spectrum. Note 2: The disadvantage of sweep-jamming is its high susceptibility to electronic counter-countermeasures.
Industry:Telecommunications
