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전파시계 - 편집 역사
2026-04-26T11:53:45Z
이 문서의 편집 역사
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2025년 2월 12일 (수) 13:32에 Togotech님의 편집
2025-02-12T13:32:08Z
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">2025년 2월 12일 (수) 13:32 판</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l2" >2번째 줄:</td>
<td colspan="2" class="diff-lineno">2번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[전자부품]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[전자부품]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"><ol></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"><li>대분류</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[시계]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[시계]]</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l10" >10번째 줄:</td>
<td colspan="2" class="diff-lineno">8번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[GDK-001 전파 벽시계]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[GDK-001 전파 벽시계]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></ol></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l39" >39번째 줄:</td>
<td colspan="2" class="diff-lineno">36번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>주요 외국</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>주요 외국</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li>지도</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li><ins class="diffchange diffchange-inline">[[</ins>지도<ins class="diffchange diffchange-inline">]]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:clock_radio00_001_001.png | 미국</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:clock_radio00_001_001.png | 미국</div></td></tr>
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Togotech
https://www.togotech.co.kr/index.php?title=%EC%A0%84%ED%8C%8C%EC%8B%9C%EA%B3%84&diff=74849&oldid=prev
2024년 4월 30일 (화) 00:56에 Togotech님의 편집
2024-04-30T00:56:27Z
<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<col class="diff-content" />
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← 이전 판</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">2024년 4월 30일 (화) 00:56 판</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l102" >102번째 줄:</td>
<td colspan="2" class="diff-lineno">102번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>Radio-Controlled Battery Clock Movement</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>Radio-Controlled Battery Clock Movement</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ol></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ol></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ol></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><li>수신 모듈</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><ol></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><li>MJU823RCC 라는 모듈을 인터넷에서 5000원 이하가격으로 판다. 출력 디지털신호를 Arduino 등으로 해석하면 된다.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><ol></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><li>Finland 핀란드 Micro Analog Systems Oy(MAS)회사 MAS6181B, AM Receiver IC 를 사용한다.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><ol></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><li>데이터시트 </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><ol></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><li>40kHz~100kHz 신호를 처리한다.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><li>일본 RCC를 위해서는 40003Hz 및 60003Hz 튜닝포크를 사용한다. 두 주파수 선택을 위해 C에 의해 선택적 안테나 매칭을 한다.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><li>사용 예 회로도</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><gallery></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">image:rcc_ic01_001.png</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></gallery></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ol></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
</table>
Togotech
https://www.togotech.co.kr/index.php?title=%EC%A0%84%ED%8C%8C%EC%8B%9C%EA%B3%84&diff=73377&oldid=prev
Togotech: 새 문서: 전파시계 <ol> <li> 전자부품 <ol> <li>대분류 <ol> <li> 시계 <ol> <li> 전파시계 - 이 페이지 <ol> <li> GDK-001 전파 벽시계 </ol> </ol> </ol> </o...
2024-02-17T07:04:24Z
<p>새 문서: 전파시계 <ol> <li> <a href="/index.php/%EC%A0%84%EC%9E%90%EB%B6%80%ED%92%88" title="전자부품" data-bs-title="전자부품">전자부품</a> <ol> <li>대분류 <ol> <li> <a href="/index.php/%EC%8B%9C%EA%B3%84" title="시계" data-bs-title="시계">시계</a> <ol> <li> <a href="/index.php/%EC%A0%84%ED%8C%8C%EC%8B%9C%EA%B3%84" title="전파시계" data-bs-title="전파시계">전파시계</a> - 이 페이지 <ol> <li> <a href="/index.php/GDK-001_%EC%A0%84%ED%8C%8C_%EB%B2%BD%EC%8B%9C%EA%B3%84" title="GDK-001 전파 벽시계" data-bs-title="GDK-001_전파_벽시계">GDK-001 전파 벽시계</a> </ol> </ol> </ol> </o...</p>
<p><b>새 문서</b></p><div>전파시계<br />
<ol><br />
<li> [[전자부품]]<br />
<ol><br />
<li>대분류<br />
<ol><br />
<li> [[시계]]<br />
<ol><br />
<li> [[전파시계]] - 이 페이지<br />
<ol><br />
<li> [[GDK-001 전파 벽시계]]<br />
</ol><br />
</ol><br />
</ol><br />
</ol><br />
<li>기술정보<br />
<ol><br />
<li>전파시계, Radio wave clock, radio-controlled clock(RCC)<br />
<ol><br />
<li>나무위키 전파 시계 https://namu.wiki/w/%EC%A0%84%ED%8C%8C%20%EC%8B%9C%EA%B3%84<br />
<li>위키페디아 Radio clock https://en.wikipedia.org/wiki/Radio_clock<br />
</ol><br />
</ol><br />
<li>우리나라 전파시계는 현재 계획만 존재<br />
<ol><br />
<li>단파: 1984/11/24일부터 대전 한국표준과학연구원(KRISS) 표준주파수국에서 5MHz 단파(호출부호 HLA)에 시간정보를 실어 24시간 송출하고 있다.<br />
<ol><br />
<li>2010년에 장비 현대화<br />
<li>5kW 출력. 비교적 출력이 낮아 전파 음영지역이 나타난다.<br />
<li>(전원선을 이용하는) 안테나 길이는 2.85m 이다.<br />
</ol><br />
<li>장파: 65kHz 반송파에서 1kHz 대역폭을 갖도록 계획<br />
<ol><br />
<li>2019/12/11, 여주시 능서면 국가표준시보 시험방송국에서 135m 높이 안테나를 설치하여 50kW 출력 시험 방송을 시작하여 2020년 12월에 운용 종료되어 철거하였다.<br />
<li>200비트, 200bps, ASK<br />
<li>시험방송은 200km 반경을 목표로 송출하고, 향후 국내 전역을 포함하는 1,000km 도달거리를 갖는 본 방송국을 구축할 계획만 수립<br />
</ol><br />
</ol><br />
<li>주요 외국<br />
<ol><br />
<li>지도<br />
<gallery><br />
image:clock_radio00_001_001.png | 미국<br />
image:clock_radio00_001_002.png | 유럽(독일,영국)<br />
image:clock_radio00_001_003.png | 일본<br />
image:clock_radio00_001_004.png | 중국<br />
</gallery><br />
<li>일본 JJY, JJY-40과 JJY-60이 있다.<br />
<ol><br />
<li>위키<br />
<ol><br />
<li>위키페디아 https://en.wikipedia.org/wiki/JJY<br />
<li>Signal Identification Wiki https://www.sigidwiki.com/wiki/JJY<br />
</ol><br />
<li>호출부호 JJY<br />
<ol><br />
<li>40kHz, 50kW 후쿠시마현 타무라시<br />
<li>60kHz, 50kW 큐슈 사가현 하가네 산 - 한반도 전역에서 수신가능하다.<br />
</ol><br />
<li>JJY 시뮬레이터<br />
<ol><br />
<li>전파가 도달되지 않는 곳이라면, PC로 신호를 만들어 송출하는 프로그램이다.<br />
<li>홈페이지 http://www.starstonesoft.com/JJY_Simulator.htm<br />
<li>설명<br />
<ol><br />
<li>PC에 시뮬레이터 프로그램을 설치한 후, 스피커 단자에 안테나를 만들어 연결한다.<br />
<li>이 프로그램에서 13.333kHz 소리를 발생시키는데 앰프출력을 최대로 하여 사각파(square wave)를 발생시키면 3차 고조파성분인 40kHz 신호도 발생되도록 한다.<br />
<li>즉, 후쿠시마현 타무라시 송신탑 신호인 40kHz를 시뮬레이션한다.<br />
<li>사각파에 가깝게 출력을 외곡시킬수록(볼륨 최대) 성능이 좋아진다.<br />
<li>보통 시계는 하루에 몇번만 수신하므로, 시간을 맞추기 위해서는 강제로 수신버튼을 눌러 맞춘다.<br />
<li>(안테나로 사용되는) 헤드폰에 매우 가깝게 시계를 위치시킨다.<br />
<ol><br />
<li>40kHz에 맞게 제작된 [[AM 안테나]]를 연결하면 도달거리가 더 멀어진다.<br />
</ol><br />
</ol><br />
</ol><br />
</ol><br />
<li>독일 DFC77<br />
<ol><br />
<li>위키페디아 DCF77 https://en.wikipedia.org/wiki/DCF77<br />
<ol><br />
<li>독일 프랑크푸르트암마인 근처에서 77.5kHz 주파수로 출력은 50kW이다.<br />
<li>도달 범위는 약 2000km 이다.<br />
<li>독일 철도회사의 역시계를 동기화하는데 사용한다.<br />
</ol><br />
</ol><br />
<li>영국 MSF<br />
<ol><br />
<li>위키페디아 https://en.wikipedia.org/wiki/Time_from_NPL_(MSF)<br />
<ol><br />
<li>60kHz 주파수로 17kW 출력<br />
</ol><br />
</ol><br />
<li>중국 BPC<br />
<ol><br />
<li>위키페디아 https://en.wikipedia.org/wiki/BPC_(time_signal)<br />
<ol><br />
<li>2002년 4월 25일부터 Shangqiu, Henan Province 위치에서 가동하고 있다.<br />
<li>68.5kHz 주파수로 매일 20시간동안 90kW 출력한다.<br />
</ol><br />
<li>무브먼트 상품: ZD-9688<br />
<ol><br />
<li>Radio-Controlled Battery Clock Movement<br />
</ol><br />
</ol><br />
</ol><br />
</ol></div>
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