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      <marc:subfield code="a">Co24-3/7-1352-1982E-PDF</marc:subfield>
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      <marc:subfield code="a">Chow, S. M., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="2">
      <marc:subfield code="a">A method of measuring and recording the impulse response of the ionospheric channel / </marc:subfield>
      <marc:subfield code="c">by S.M. Chow.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Ottawa : </marc:subfield>
      <marc:subfield code="b">Communications Research Centre, </marc:subfield>
      <marc:subfield code="c">1982.</marc:subfield>
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      <marc:subfield code="a">1 online resource (iii, 10 pages) : </marc:subfield>
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      <marc:subfield code="a">CRC report ; </marc:subfield>
      <marc:subfield code="v">no. 1352</marc:subfield>
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      <marc:subfield code="a">"January 1982."</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Innovation, Science and Economic Development Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 9).</marc:subfield>
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    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"This report describes a simple method by which the propagation modes of an ionospheric communication channels can be measured and recorded. Experimental results are included as illustration of the technique"--Abstract, page 1.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Ionospheric radio wave propagation</marc:subfield>
      <marc:subfield code="x">Measurement.</marc:subfield>
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    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Pulse-code modulation</marc:subfield>
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      <marc:subfield code="a">Ondes radioélectriques</marc:subfield>
      <marc:subfield code="x">Propagation dans l'ionosphère</marc:subfield>
      <marc:subfield code="x">Mesure.</marc:subfield>
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      <marc:subfield code="a">Modulation par impulsions codées</marc:subfield>
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      <marc:subfield code="a">Communications Research Centre (Canada), </marc:subfield>
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      <marc:subfield code="a">CRC report ;</marc:subfield>
      <marc:subfield code="v">no. 1352.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.882492</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">835 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-7-1352-1982-eng.pdf</marc:subfield>
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