A Meter for Measuring Signal-to-Noise Ratio in Television Transmission Systems

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Three independent characteristic factors affect TV transmission picture quality: linear distortions, nonlinear distortions and noise. A new improved instrument has been developed for the measurement and analysis of video noise in accordance with CCIR Recommendation 421.2. This video noise meter has both true rms and peak-to-peak calibration for objective measurement of random, periodic and impulse noise. Highpass, lowpass and weighting filters permit detailed qualitative and quantitative analysis of the noise, including hum. By interchanging filter modules and resetting an internal switch, one can use the same instrument for both NTSC and PAL Standards. A built-in sag and tilt compensating circuit eliminates pseudonoise components such as are generated by shading of video pickup tubes. The instrument has an accuracy and repeatability of better than 0.5 dB and has a dynamic range of 85 dB, permitting testing of both subassemblies and complete systems.
Publication Date: 1973-04-01
DOI: 10.5594/J08886
Link: https://doi.org/10.5594/J08886
Author(s): George Stoeppel

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George Stoeppel; A Meter for Measuring Signal-to-Noise Ratio in Television Transmission Systems, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J08886

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George Stoeppel; A Meter for Measuring Signal-to-Noise Ratio in Television Transmission Systems, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J08886

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<span class="citation">George Stoeppel; <cite>A Meter for Measuring Signal-to-Noise Ratio in Television Transmission Systems</cite>, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973. Available at <a href="https://doi.org/10.5594/J08886" target="_blank" rel="noopener">https://doi.org/10.5594/J08886</a></span>

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George Stoeppel; A Meter for Measuring Signal-to-Noise Ratio in Television Transmission Systems, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973
doi: 10.5594/J08886
url: https://doi.org/10.5594/J08886

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George Stoeppel; <cite id="bib-10-5594-j08886">A Meter for Measuring Signal-to-Noise Ratio in Television Transmission Systems</cite>, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973
<span class="doi">10.5594/J08886</span>
</li>