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).
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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.
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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;
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Examples of Spurious emission in a sentence

  • Spurious emission from the EUT is measured in the frequency range of 30 MHz to 1000 MHz using a tuned receiver and appropriate broadband linearly polarized antennas.

  • Spurious emission from any part of the installation other than the antenna and its transmission line should not have an effect greater than would occur if this antenna system were supplied with the maximum permitted power at that spurious emission frequency.

  • Spurious emission: Emission 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.

  • Transceiver weight 1.3 kg ReceiverSensitivity for:12 dB SINAD -119 dBm or 0.25µV p.d.AF rated powerOutput 1 4 W/ 4 ohmsOutput 2 6 W/ 4 ohmsDistortion THD Below 5% Signal/noise ratio Better than 40dB AF response - 6dB/octave Spurious emission Below 2nW Spurious resp.

  • Spurious emission features are marked by ∗, which is caused by molecular absorptions (mostly O−H) in the standard star (BS 6866; G8III).

  • As illustrated below, the isolation can be obtained through: • Antenna spacing• Guardband• External filters Based on previous studies between LTE and GSM, the isolation requirement for spurious emission and receiver blocking are: • Spurious emission: 105 dB• Receiver Blocking: 59 dBIn order to reach such isolation, a >10MHz guardband would be required.

  • Spurious emission from any part of the installation other than the antenna and its transmission line should not have an effect greater than would occur if this antenna system were supplied with the maximum permitted power at that spurious domain emission frequency.

  • TABLE 1 Spurious emission limits – Category A (Recommended attenuation values used to calculate maximum permitted spurious emission power levels intended for use with radio equipment by all countries) TABLE 1 (continued) P : mean power (W) at the antenna transmission line, in accordance with RR No. 152(S1.158).

  • VDL Mode 3 and DSB-AMa) Spurious emission levels shall(138) meet the limits imposed by the transmit mask of Section 3.2.2.2.10.

  • USA/1.2/06 MOD USA/1.2/07 MOD USA/1.2/08 ADDNotes to Table II10) Spurious emission limits for all space services are stated in a 4 kHz reference bandwidth.


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.
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Spurious emission means an emission that occurs on frequencies outside the assigned frequency bands and emanates from a maladjusted transmitter;
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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:

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  • Evaporative emissions means in the context of this UN GTR the hydrocarbon vapours lost from the fuel system of a motor vehicle during parking and immediately before refuelling of a sealed fuel tank.

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

  • 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).

  • Fugitive emission means an emission to air from the permitted installation that is not controlled by an emission limit imposed by a condition of this Permit.

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  • Continuous parameter monitoring system or "CPMS" means all of the equipment necessary to meet the data acquisition and availability requirements of this chapter, to monitor process and control device operational parameters (for example, control device secondary voltages and electric currents) and other information (for example, gas flow rate, oxygen or carbon dioxide concentrations), and to record average operational parameter value on a continuous basis.

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  • Synchronous Optical Network (SONET means the optical interface standard that allows inter-networking of transmission products from multiple vendors. The base rate is 51.84 Mbps (“OC 1/STS 1”) and higher rates are direct multiples of the base rate, up to 13.22 Gbps.

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  • Continuous monitoring system means the total equipment, required under the emission monitoring section in applicable subsections used to sample and condition (if applicable), to analyze, and to provide a permanent record of emissions or process parameters.

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