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    <marc:controlfield tag="008">190916e197712##onc||||#o    f00| 0|eng d</marc:controlfield>
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      <marc:subfield code="a">Co24-200/1977E-PDF</marc:subfield>
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      <marc:subfield code="a">UHF duplexer feasibility for space application.</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 Canada], </marc:subfield>
      <marc:subfield code="c">December 1977.</marc:subfield>
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      <marc:subfield code="a">1 online resource (73 pages) : </marc:subfield>
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      <marc:subfield code="a">online resource</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 48).</marc:subfield>
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      <marc:subfield code="a">"This is the final report on the work carried out for the design and development of a high power, low passive intermodulation (PIM) UHF duplexer to determine the feasibility of such a unit for space application"--Summary, page 1.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/isde-ised/Co24/Co24-200-1977-eng.pdf</marc:subfield>
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