A modern precision automatic SINAD meter, distortion meter and true RMS voltmeter

Hans-Otto Modler, Ralf Rudersdorfer

Research output: Contribution to journalArticle

Abstract

In all receiver engineering with similar types of modulation the data for the redeiver performance refer to signal-to-noise ratio and noise figure either directly or indirectly. The quality of the audio signal is evaluated by the distortion factor or signal breakdown. To simplify the measurement procedures a SINAD meter is used. The equipment presented in this paper combines a distortion factor meter with a true RMS voltmeter with 102 dB range and a automatic SINAD meter, in fact all the capabilities of a laboratory instrument (for the AF side) to make measurements precisely and efficiently. A CCITT weighting filter permits, if required, correct evaluation according to the standard.
Original languageGerman (Austria)
Pages (from-to)77-101
Number of pages25
JournalVHF Communications
Volume39
Issue number2
Publication statusPublished - 2007

Fields of science

  • 202012 Electrical measurement technology
  • 202 Electrical Engineering, Electronics, Information Engineering
  • 202001 Audio technology

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