In telecommunications, insertion loss is the loss of signal power resulting from the insertion of a device in a transmission line or optical fiber and is usually expressed in decibels (dB). ...
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http://en.wikipedia.org/wiki/Insertion_loss
the ratio, generally expressed in decibels, of the apparent power at a point in a transmission channel to the power at the same point after insertion of a given two-port device into the transmission channel immediately ahead of this point NOTE - If the ratio defining the insertion loss is less than one, its decibel value is negative, and its conver...
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resulting from the insertion of a network into a transmission system, the ratio of the power delivered to that part of the system following the network, before insertion of the network, to the power delivered to that same part after insertion of the network NOTE - The insertion loss is generally expressed in decibels.
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the extra optical attenuation caused by the insertion of an extra optical component into an optical system
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The loss in power caused by the insertion of a network between a source and a load.
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: See Attenuation
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Insertion loss is a decrease in the strength of a signal over the electrical length of the module. Insertion loss is caused by a loss of electrical energy in the resistance of the PCB, jacks and extra components. This loss of energy is expressed in decibels (dB). Lower insertion loss values correspond to better module performance. For example, when comparing the performance of two modules at a particular frequency, a module with an insertion loss of 0.1 dB performs better than a module with an insertion loss of 0.2 dB.
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The extra optical attenuation caused by the insertion of a component into an optical system.
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Insertion loss refers to the loss of a signal's measurable power when a filter (or similar device) is inserted into an optical fiber or transmission line. It is calculated by finding the ratio (measured in decibels) of signal voltage measured from source to load before a filter is inserted as compared to the amount of voltage measured from source t...
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http://www.used-line.com/glossaries/glossary.cfm?g_id=3
Insertion loss refers to the decrease in a load's power caused by the insertion of a separate component or instrument at a given point in a transmission system. This figure is most commonly represented by a ratio measured in decibels and is expressed as follows: the amount of power received at the load prior to the insertion of the exterior device ...
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AcousticsThis may be applied to a silencer or other sound-reducing element, in a specified frequency band, the decrease in sound power level, measured at the location of the receiver, when a sound insulator or a sound attenuator is inserted in the transmission path between the source and the receiver.ElectronicsThe loss in power caused by the inser...
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https://www.encyclo.co.uk/local/20687
The loss of voltage (or power), as measured in db, resulting from placing a resistor (or some other
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https://www.encyclo.co.uk/local/22369
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