EMC performance measurements for professional wireless microphone systems

Bernhard Auinger, Philipp Franz Freidl, Michael Ernst Gadringer, Christian Glawan, Gunter Winkler, Wolfgang Bösch

Research output: Contribution to journalArticleResearchpeer-review

Abstract

With shrinking spectral bandwidths and more intense use of the remaining frequency areas, the importance of good electromagnetic compatibility (EMC) performance of professional wireless microphone systems, as used by broadcasters, is increasing. A wireless microphone system consists of one or more pocket or handheld transmitters and usually the same amount of receivers. Both have to be immune against disturbances, and on the other hand they should not produce interferences. This paper deals with electromagnetic compatibility (EMC) performance tests of three analogue professional wireless microphone systems. The authors describe the complete measurement procedure using two different setups. These setups employ the pocket transmitter or the receiver as device under test (DUT). Different disturbance signals are used utilizing amplitude modulation (AM), frequency modulation (FM) or digital video broadcast-terrestrial (DVB-T). The audio quality of the transmission system is rated with the total harmonic distortion plus noise (THD+N). Additionally, the authors investigate intermodulations (third harmonic) caused by the transmitter. The results of all performance tests are extensively discussed.
Original languageEnglish
Pages (from-to)1-7
Journale&i - Elektrotechnik und Informationstechnik
Issue number2
DOIs
Publication statusPublished - 2016

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Electromagnetic compatibility
Microphones
Transmitters
Intermodulation
Amplitude modulation
Harmonic distortion
Frequency modulation
Bandwidth

Fields of Expertise

  • Information, Communication & Computing

Treatment code (Nähere Zuordnung)

  • Experimental

Cite this

EMC performance measurements for professional wireless microphone systems. / Auinger, Bernhard; Freidl, Philipp Franz; Gadringer, Michael Ernst; Glawan, Christian; Winkler, Gunter; Bösch, Wolfgang.

In: e&i - Elektrotechnik und Informationstechnik, No. 2, 2016, p. 1-7.

Research output: Contribution to journalArticleResearchpeer-review

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