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- Standing_wave_ratio abstract "In telecommunications, standing wave ratio (SWR) is the ratio of the amplitude of a partial standing wave at an antinode (maximum) to the amplitude at an adjacent node (minimum), in an electrical transmission line.The SWR is usually defined as a voltage ratio called the VSWR, (sometimes pronounced "viswar"), for voltage standing wave ratio. For example, the VSWR value 1.2:1 denotes a maximum standing wave amplitude that is 1.2 times greater than the minimum standing wave value. It is also possible to define the SWR in terms of current, resulting in the ISWR, which has the same numerical value. The power standing wave ratio (PSWR) is defined as the square of the VSWR. To avoid confusion, wherever SWR is used without modification in this article, assume it is referring to the VSWR.SWR is used as an efficiency measure for transmission lines, electrical cables that conduct radio frequency signals, used for purposes such as connecting radio transmitters and receivers with their antennas, and distributing cable television signals. A problem with transmission lines is that impedance mismatches in the cable tend to reflect the radio waves back toward the source end of the cable, preventing all the power from reaching the destination end. SWR measures the relative size of these reflections. An ideal transmission line would have an SWR of 1:1, with all the power reaching the destination and none of the power reflected back. An infinite SWR represents complete reflection, with all the power reflected back down the cable. The SWR of a transmission line can be measured with an instrument called an SWR meter, and checking the SWR is a standard part of installing and maintaining transmission lines.".
- Standing_wave_ratio thumbnail Standing_Wave_Ratio.svg?width=300.
- Standing_wave_ratio wikiPageExternalLink vswr.pl.
- Standing_wave_ratio wikiPageExternalLink vswr.php.
- Standing_wave_ratio wikiPageExternalLink reflection.html.
- Standing_wave_ratio wikiPageExternalLink an_1287-1.pdf.
- Standing_wave_ratio wikiPageID "41742".
- Standing_wave_ratio wikiPageRevisionID "603574581".
- Standing_wave_ratio hasPhotoCollection Standing_wave_ratio.
- Standing_wave_ratio subject Category:Antennas_(radio).
- Standing_wave_ratio subject Category:Engineering_ratios.
- Standing_wave_ratio subject Category:Radio_electronics.
- Standing_wave_ratio subject Category:Wave_mechanics.
- Standing_wave_ratio type Abstraction100002137.
- Standing_wave_ratio type EngineeringRatios.
- Standing_wave_ratio type MagnitudeRelation113815152.
- Standing_wave_ratio type Ratio113819207.
- Standing_wave_ratio type Relation100031921.
- Standing_wave_ratio comment "In telecommunications, standing wave ratio (SWR) is the ratio of the amplitude of a partial standing wave at an antinode (maximum) to the amplitude at an adjacent node (minimum), in an electrical transmission line.The SWR is usually defined as a voltage ratio called the VSWR, (sometimes pronounced "viswar"), for voltage standing wave ratio. For example, the VSWR value 1.2:1 denotes a maximum standing wave amplitude that is 1.2 times greater than the minimum standing wave value.".
- Standing_wave_ratio label "Rapport d'onde stationnaire".
- Standing_wave_ratio label "Razón de onda estacionaria".
- Standing_wave_ratio label "Relação de ondas estacionárias".
- Standing_wave_ratio label "Staande-golfverhouding".
- Standing_wave_ratio label "Standing wave ratio".
- Standing_wave_ratio label "Stehwellenverhältnis".
- Standing_wave_ratio label "VSWR".
- Standing_wave_ratio label "Współczynnik fali stojącej".
- Standing_wave_ratio label "Коэффициент стоячей волны".
- Standing_wave_ratio label "定在波比".
- Standing_wave_ratio sameAs Stehwellenverhältnis.
- Standing_wave_ratio sameAs Razón_de_onda_estacionaria.
- Standing_wave_ratio sameAs Rapport_d'onde_stationnaire.
- Standing_wave_ratio sameAs VSWR.
- Standing_wave_ratio sameAs 定在波比.
- Standing_wave_ratio sameAs Staande-golfverhouding.
- Standing_wave_ratio sameAs Współczynnik_fali_stojącej.
- Standing_wave_ratio sameAs Relação_de_ondas_estacionárias.
- Standing_wave_ratio sameAs m.0bgqs.
- Standing_wave_ratio sameAs Q188364.
- Standing_wave_ratio sameAs Q188364.
- Standing_wave_ratio sameAs Standing_wave_ratio.
- Standing_wave_ratio wasDerivedFrom Standing_wave_ratio?oldid=603574581.
- Standing_wave_ratio depiction Standing_Wave_Ratio.svg.
- Standing_wave_ratio isPrimaryTopicOf Standing_wave_ratio.
