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008201217s1980    oncab   ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn---
0861 |aCo24-3/7-1340-1980E-PDF
1001 |aLoo, Chun,|d1937- |eauthor.
24510|aSubjective evaluation of FM/FM protection ratio for television broadcasting by satellite / |cby Chun Loo ; appendices A and F contributed by G. Chouinard and W.B. Tonner.
264 1|aOttawa : |bCommunications Research Centre, |c1980.
300 |a1 online resource (iii, 77 pages) : |billustrations.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
4901 |aCRC report ; |vno. 1340
500 |a"December 1980."
500 |a"Space Technology and Applications Branch."
500 |aDigitized edition from print [produced by Innovation, Science and Economic Development Canada].
504 |aIncludes bibliographical references.
520 |a"This report describes subjective measurements of the interference between two FM TV signals at the same carrier frequency and at different carrier frequencies. The results show that there is no masking of the interference due to additive Gaussian noise in the wanted channel as reported by others. Also, the results do not support the conclusion that an impairment grade of 4.5 on the CCIR scale is subjectively equivalent to just perceptible interference. Finally, a comparison of results of measurements of the protection ratio and its variation with frequency offset with those obtained by others shows reasonably good agreement"--Abstract, page 1.
650 0|aTelevision|xPicture quality|xEvaluation.
650 0|aTelevision|xTransmitters and transmission.
650 0|aArtificial satellites in telecommunication|zCanada.
650 6|aTélévision|xQualité de l'image|xÉvaluation.
650 6|aTélévision|xÉmetteurs et transmission.
650 6|aSatellites artificiels dans les télécommunications|zCanada.
7102 |aCommunications Research Centre (Canada), |eissuing body.
830#0|aCRC report ;|vno. 1340.|w(CaOODSP)9.882492
85640|qPDF|s1.11 MB|uhttps://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-7-1340-1980-eng.pdf