Spurious emission definition

Spurious emission. In every modulation process additional undesired signals exist. They are summarized under the expression "spurious emissions". Spurious emissions are emissions on a frequency or frequencies, which are outside the necessary bandwidth and the level of which may be reduced without affecting the corresponding transmission of information. Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and frequency conversion products, but exclude out-of-band emissions (Article 1 No. 1.145 of the ITU Radio Regulations).
View Source
Spurious emission means the emission on a frequency or frequencies which are outside necessary bandwidth and the level of which may be reduced without affecting the corresponding transmission of information. Spurious emissions include harmonic emissions, parasite emissions, inter- modulation products and frequency conversion products, but exclude out- of-band emissions;
View Source
Spurious emission means an emission on a frequency or frequencies outside the necessary bandwidth and the level of which may be reduced without affecting the corresponding transmission of information. Spurious emissions include harmonic emission, parasitic emissions intermodulation products and frequency conversion products but exclude out of band emissions.
View Source

More Definitions of Spurious emission

Spurious emission means emission on a frequency or many frequencies which are out- side the necessary bandwidth and the level of which may be reduced without affecting the corresponding transmission of information.
View Source
Spurious emission means an emission that occurs on frequencies outside the assigned frequency bands and emanates from a maladjusted transmitter;
View Source

Related to Spurious emission

  • Continuous emission monitoring system or "CEMS" means the equipment required under section 11 of this rule to sample, analyze, measure, and provide, by means of readings recorded at least once every fifteen (15) minutes, using an automated data acquisition and handling system (DAHS), a permanent record of nitrogen oxides emissions, stack gas volumetric flow rate, stack gas moisture content, and oxygen or carbon dioxide concentration, as applicable, in a manner consistent with 40 CFR 75*. The following systems are the principal types of continuous emission monitoring systems required under section 11 of this rule:

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Evaporative emissions means the hydrocarbon vapours lost from the fuel system of a motor vehicle other than those from exhaust emissions;

  • Continuous emissions monitoring system or “CEMS” means all of the equipment that may be required to meet the data acquisition and availability requirements of this chapter, to sample, to condition (if applicable), to analyze, and to provide a record of emissions on a continuous basis.

  • Continuous emissions rate monitoring system or “CERMS” means the total equipment required for the determination and recording of the pollutant mass emissions rate (in terms of mass per unit of time).