Time Signal Transmitter (시보 전송국)

<div class="table-wrap"><table data-ke-type="table" data-ke-align="alignLeft" style="width: 91.07%; height: 145px;" border="1"><tbody><tr style="height: 22px;"><td style="width: 11%; height: 22px;">Name</td><td style="width: 29.33%; height: 22px;">Frequency</td><td style="width: 34.65%; height: 22px;">Location</td><td style="width: 15.96%; height: 22px;">Status</td></tr><tr style="height: 10px;"><td style="width: 11%; height: 10px;">BPM</td><td style="width: 29.33%; height: 10px;">2.5, 5, 10 and 15 MHz</td><td style="width: 34.65%; height: 10px;">Pucheng County, Shaanxi, China </td><td style="width: 15.96%; height: 10px;">alive</td></tr><tr style="height: 10px;"><td style="width: 11%; height: 10px;">BSF</td><td style="width: 29.33%; height: 10px;">5 and 15 MHz</td><td style="width: 34.65%; height: 10px;">Chung-Li, Taiwan, Rep. of China </td><td style="width: 15.96%; height: 10px;">alive</td></tr><tr style="height: 10px;"><td style="width: 11%; height: 10px;">HLA</td><td style="width: 29.33%; height: 10px;">5 MHz</td><td style="width: 34.65%; height: 10px;">Taedok, Science Town, Rep. of Korea</td><td style="width: 15.96%; height: 10px;">alive</td></tr><tr style="height: 13px;"><td style="width: 11%; height: 13px;">IAM</td><td style="width: 29.33%; height: 13px;">5 MHz</td><td style="width: 34.65%; height: 13px;">Roma, Italy</td><td style="width: 15.96%; height: 13px;">alive</td></tr><tr style="height: 10px;"><td style="width: 11%; height: 10px;">LOL</td><td style="width: 29.33%; height: 10px;">5, 10 and 15 MHz</td><td style="width: 34.65%; height: 10px;">Buenos Aires, Argentina</td><td style="width: 15.96%; height: 10px;">alive</td></tr><tr style="height: 10px;"><td style="width: 11%; height: 10px;">WWVH</td><td style="width: 29.33%; height: 10px;">2.5, 5, 10 and 15.0 MHz</td><td style="width: 34.65%; height: 10px;">Kauai, Hawai, USA</td><td style="width: 15.96%; height: 10px;">alive</td></tr><tr style="height: 21px;"><td style="width: 11%; height: 21px;">WWV</td><td style="width: 29.33%; height: 21px;">2.5, 5, 10, 15 and 20 MHz</td><td style="width: 34.65%; height: 21px;">Fort Collins, Colorado, USA</td><td style="width: 15.96%; height: 21px;">alive</td></tr><tr style="height: 11px;"><td style="width: 11%; height: 11px;">YVTO</td><td style="width: 29.33%; height: 11px;">5 MHz</td><td style="width: 34.65%; height: 11px;">Caracas, Venezuela</td><td style="width: 15.96%; height: 11px;">alive</td></tr><tr style="height: 10px;"><td style="width: 11%; height: 10px;">ATA</td><td style="width: 29.33%; height: 10px;">10 MHz</td><td style="width: 34.65%; height: 10px;">Greater Kailash, New Delhi, India</td><td style="width: 15.96%; height: 10px;">suspended</td></tr><tr style="height: 18px;"><td style="width: 11%; height: 18px;">MSF</td><td style="width: 29.33%; height: 18px;">60 kHz</td><td style="width: 34.65%; height: 18px;">Anthorn, United Kingdom </td><td style="width: 15.96%; height: 18px;">alive</td></tr></tbody></table></div>예전에는 통상 시보 수신을 J3E TEL - 2.5, 5, 10, 15 MHz로 수신하여 Stopwatch이용 측정하여 Choronometer를 조정하였으나 요즈음 GPS에 의해 시간 정보를 받을 수 있으므로 상기 주파수 이용하여 시보 수신을 하지 않고 있으며 기존 시보 송신국들도 GNSS(GPS, GLONASS, GALILEO, BEIDOU) 사용으로 점차 서비스 중단하고 있음.(상기 외 장파, 중파주파수로 방송을 하는 국가들도 있으나 생략. 예) 상기 MSF국)