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    "abbrevTitle": "SMPTE J",
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    "abstract": "WRAL-HD conducted one of the nation's first digital television (DTV) field tests. This report will explain the testing methods, results, and analysis of this test, with the final section devoted to comparisons with measured NTSC reception. The testing consisted of four phases that explored different aspects of the new transmission service. In the different areas of testing, the results showed that outdoor service availability of the 100-kW high-definition television (HDTV) service was 89.6% when measured to 65 miles. Also, a horizontally polarized transmitting antenna was compared to a circularly polarized transmitting antenna with no significant advantage or disadvantage found for either antenna to existing receive antennas. Testing was included from the inside of various residences and showed that the problems, which have always affected indoor NTSC reception, will need to be addressed with DTV. Finally, WRAL-HD's sidemounted DTV transmitting antenna was tested for pattern nulls and receiver white noise enhancement and showed that the tower does have an effect on the DTV transmission, but it is minimal and should not prevent the implementation of this type antenna. This report also contains some detailed comparisons between a 5000-kW NTSC signal and the DTV signal. With the NTSC signal enjoying not only a greater power but other transmission advantages as well, the outdoor service availability of the NTSC was 92.5% and for the DTV signal it was 91.8%. These comparisons were also evaluated for indoor reception. This report will detail these and other findings.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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    "authors": [
      {
        "affiliation": "WRAL-HD/Capital Broadcasting Co., Raleigh, NC 27606",
        "bio": "Luther Ritchie is currently the HDTV Developmental Engineer for Capitol Broadcasting and WRAL-HD in Raleigh, N.C. Ritchie, an engineer's engineer, began his career at WLTX-TV, then moved to WPTF-TV, and finally landed at WRAL-TV. In 1997, he conducted the first DTV RF field testing since the ACATS testing was conducted in Charlotte, N.C. All of his research is available at www.wral-hd.com . Ritchie is an active member of SMPTE, IEEE, and The Model HDTV Station Committee in Washington, D.C. He has helped many of the industry's broadcasting and manufacturing leaders with issues concerning HDTV.",
        "name": "Luther H. Ritchie"
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      "holder": "Society of Motion Picture and Television Engineers, Inc.",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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        "updated": "2026-05-22T19:19:44.900Z",
        "version": "smpte-journal-article-nlm@v1"
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      "year": "1999",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
        "source": "parsed",
        "updated": "2026-05-22T19:19:44.900Z",
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      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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    "docId": "10.5594-J08368",
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      "note": "Derived from DOI 10.5594/J08368",
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      "updated": "2026-05-22T19:19:44.900Z",
      "version": "smpte-journal-article-nlm@v1"
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      "note": "Composed from journal title, volume, issue and date",
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    "docTitle": "WRAL-HD DTV Complete Field Test Report",
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      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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    "doi": "10.5594/J08368",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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      "updated": "2026-05-22T19:19:44.900Z",
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      "confidence": "high",
      "note": "Constructed from DOI 10.5594/J08368",
      "source": "inferred",
      "updated": "2026-05-22T19:19:44.900Z",
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    "issn": {
      "print": "0036-1682",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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        "updated": "2026-05-22T19:19:44.900Z",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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      "updated": "2026-05-22T19:19:44.900Z",
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    "journalAcronym": "MIJR",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07132015 BACKFILE FOR JOURNAL/smptej_108_6/MIJR15Vol108No6.xml)",
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    "journalTitle": "SMPTE Journal",
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      "confidence": "high",
      "note": "Era-accurate journal title from SMPTE canonical repository (periodical parent at time of publication) (smpte-canonical-audit/canonicalLibrary.*.json)",
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      "updated": "2026-07-08T00:35:38.133Z",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
      "source": "parsed",
      "updated": "2026-05-22T19:19:44.900Z",
      "version": "smpte-journal-article-nlm@v1"
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    "pages": "374–393",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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      "updated": "2026-05-22T19:19:44.900Z",
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      "confidence": "high",
      "note": "Day absent in NLM source — padded to 01",
      "source": "parsed",
      "updated": "2026-05-22T19:19:44.900Z",
      "version": "smpte-journal-article-nlm@v1"
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    "publisher": "SMPTE",
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      "confidence": "high",
      "note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)",
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      "updated": "2026-05-22T19:19:44.900Z",
      "version": "smpte-journal-article-nlm@v1"
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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        "updated": "2026-05-22T19:19:44.900Z",
        "version": "smpte-journal-article-nlm@v1"
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      "country": "USA",
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        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07132015 BACKFILE FOR JOURNAL/smptej_108_6/MIJR15Vol108No6.xml)",
        "source": "parsed",
        "updated": "2026-06-16T16:11:59.617Z",
        "version": "smpte-journal-issue-xml@v1"
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J08368.xml)",
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      "updated": "2026-05-22T19:19:44.900Z",
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        "confidence": "medium",
        "note": "No explicit status in NLM source — journal articles default active",
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        "updated": "2026-05-22T19:19:44.900Z",
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      "confidence": "high",
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