{"id":22298,"date":"2023-09-10T20:11:00","date_gmt":"2023-09-10T11:11:00","guid":{"rendered":"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/?p=22298"},"modified":"2023-09-13T05:01:17","modified_gmt":"2023-09-12T20:01:17","slug":"wwv%e3%81%a7%e3%82%b9%e3%83%9a%e3%82%a2%e3%83%8a%e6%a0%a1%e6%ad%a3","status":"publish","type":"post","link":"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/2023\/09\/10\/wwv%e3%81%a7%e3%82%b9%e3%83%9a%e3%82%a2%e3%83%8a%e6%a0%a1%e6%ad%a3\/","title":{"rendered":"WWV\u3067\u30b9\u30da\u30a2\u30ca\u6821\u6b63"},"content":{"rendered":"<p>\u4eca\u65e5\u3001YouTube\u3092\u3044\u308d\u3044\u308d\u3068\u898b\u3066\u3044\u308b\u4e2d\u3067\u8208\u5473\u306e\u3042\u308b\u30bf\u30a4\u30c8\u30eb\u3092\u898b\u3064\u3051\u307e\u3057\u305f\u3002<\/p>\n<p>WWV\u4fe1\u53f7\u3067RIGOL\u306e\u30b9\u30da\u30a2\u30caDSA 815\u306e\u5468\u6ce2\u6570\u6821\u6b63\u3092\u884c\u3046\u3068\u3044\u3046\u30d3\u30c7\u30aa\u3067\u3059\u3002<\/p>\n<p>WWV\u306f\u30a2\u30e1\u30ea\u30ab\u3001\u30b3\u30ed\u30e9\u30c9\u5dde\u306b\u3042\u308b\u6a19\u6e96\u5468\u6ce2\u6570\u6642\u5831\u5c40\u3067\u3042\u308a\u30011922\u5e74\u304b\u3089\u6a19\u6e96\u5468\u6ce2\u6570\u5c40\u3068\u3057\u3066\u904b\u7528\u3092\u958b\u59cb\u300110MHz\u3067\u306e\u904b\u7528\u306f1935\u5e74\u306b\u958b\u59cb\u3057\u307e\u3057\u305f\u3002\u30001991\u5e74\u306b\u306f\u73fe\u5728\u306e\u539f\u5b50\u767a\u632f\u5668\u3092\u4f7f\u3063\u305f10e-13\u306e\u7cbe\u5ea6\u3067\u6a19\u6e96\u5468\u6ce2\u6570\u3092\u9001\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002\u3000\u3053\u306e10MHz\u306e\u4fe1\u53f7\u306f\u65e5\u672c\u3067\u3082\u53d7\u4fe1\u3067\u304d\u307e\u3059\u3002\u3000\u4ee5\u524d\u306f\u65e5\u672c\u306b\u308210MHz\u306e\u6a19\u6e96\u5468\u6ce2\u6570\u6642\u5831\u5c40JJY\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u30012001\u5e74\u306b\u904b\u7528\u3092\u505c\u6b62\u3057\u3001\u73fe\u5728\u306f40kHz\u3067\u798f\u5cf6\u770c\u7530\u6751\u5e02\u306e\u304a\u304a\u305f\u304b\u3069\u3084\u5c71\u9001\u4fe1\u6240\u306860kHz\u3067\u4f50\u8cc0\u770c\u4f50\u8cc0\u5e02\u306e\u306f\u304c\u306d\u5c71\u9001\u4fe1\u6240\u304b\u3089\u9577\u6ce2\u306e\u6a19\u6e96\u5468\u6ce2\u6570\u6642\u5831\u4fe1\u53f7\u304c\u9001\u4fe1\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3000\u3053\u308c\u304c\u96fb\u6ce2\u6642\u8a08\u306e\u6642\u523b\u6821\u6b63\u306e\u6a19\u6e96\u6642\u3068\u3057\u3066\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3055\u3066WWV\u3067\u672c\u5f53\u306b\u305d\u3093\u306a\u306b\u6b63\u78ba\u306b\u5468\u6ce2\u6570\u6821\u6b63\u304c\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u3000\u3053\u308c\u304c\u305d\u306e\u30d3\u30c7\u30aa\u306e\u5185\u5bb9\u3067\u3059\u3002<\/p>\n<p><iframe loading=\"lazy\" title=\"DSA 815 Calibration using WWV\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/E82NL086VrE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>\u5468\u6ce2\u6570\u6821\u6b63\u306e\u65b9\u6cd5\u306f\u30d3\u30c7\u30aa\u306b\u3042\u308b\u901a\u308a\u3067\u3059\u304c\u3001\u6700\u65b0\u7248\u306eFW\u3067\u306f\u64cd\u4f5c\u304c\u9055\u3046\u3068\u3053\u308d\u304c\u3042\u308b\u3088\u3046\u306a\u306e\u3067\u3001\u4e0b\u8a18\u306b\u624b\u9806\u3092\u66f8\u3044\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u300cSystem\u300d\u300cCalibrate\u300d\u300cSelf-Cal\u300d\u3092Off\u306b\u8a2d\u5b9a\u3002\u3000\u3053\u308c\u306fOn\u3060\u306810\u5206\u6bce\u306b\u30bb\u30eb\u30d5\u30ad\u30e3\u30ea\u30d6\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u5165\u308b\u305f\u3081\u3053\u308c\u3092\u4e00\u6642\u7684\u306b\u6b62\u3081\u3066\u304a\u304f\u305f\u3081\u3067\u3059\u3002<\/li>\n<li>\u300cFreq\u300d\u300cCenter Freq\u300d\u309210MHz\u306b\u8a2d\u5b9a\u3002<\/li>\n<li>\u300cSpan\u300d\u3067100Hz\u3092\u8a2d\u5b9a\u3002<\/li>\n<li>\u300cAmpt\u300d\u3067\u30ec\u30d9\u30eb\u3092\u3000\u2010100dBm\u7a0b\u5ea6\u306b\u3059\u308b\u3068\u30ce\u30a4\u30ba\u30d5\u30ed\u30a2\u304c\u898b\u3048\u3066\u304d\u307e\u3059\u3002\u3000\u3000\u30d3\u30c7\u30aa\u306e2\u5206\u304f\u3089\u3044\u306e\u3068\u3053\u308d\u3067\u3001\u30a2\u30f3\u30c6\u30ca\u3092\u63a5\u7d9a\u3057\u306a\u304f\u3066\u308210MHz\u306e\u30ad\u30e3\u30ea\u30a2\u304c\u898b\u3048\u3066\u3044\u3066\u3001\u3053\u308c\u306f\u5185\u90e8\u304b\u3089\u306e\u6f0f\u308cSpur\u3060\u3068\u8a00\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u6f0f\u308c\u4fe1\u53f7\u3067\u306f\u306a\u304f\u3001\u30a2\u30f3\u30c6\u30ca\u63a5\u7d9a\u7121\u3057\u3067\u3001\u3059\u3067\u306bWWV\u4fe1\u53f7\u3092\u53d7\u4fe1\u3067\u304d\u3066\u3044\u308b\u305f\u3081\u3068\u601d\u3044\u307e\u3059\u3002\u6211\u304c\u5bb6\u3067\u306f\u30a2\u30f3\u30c6\u30ca\u63a5\u7d9a\u7121\u3057\u3067\u306f10MHz\u306b\u306f\u4f55\u3082\u898b\u3048\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3055\u3059\u304c\u7c73\u56fd\u3067\u306f\u4fe1\u53f7\u5f37\u5ea6\u3082\u5f37\u3044\u3088\u3046\u3067\u3059\u3002<\/li>\n<li>\u30a2\u30f3\u30c6\u30ca\u3092\u63a5\u7d9a\u3002\u3000\u53d7\u4fe1\u3060\u3051\u306a\u306e\u3067HF\u306e\u30a2\u30f3\u30c6\u30ca\u3067\u3042\u308c\u3070\u4f55\u3067\u3082OK\u3068\u601d\u3044\u307e\u3059\u3002\u300010MHz\u306e\u30a2\u30f3\u30c6\u30ca\u304c\u3042\u308c\u3070\u305d\u308c\u306b\u8d8a\u3057\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<li>\u300cBW\/Det\u300d\u300cRBW\u300d\u306710Hz\u306b\u8a2d\u5b9a\u3000\u300cVBW\u300d\u3082\u540c\u6642\u306b10Hz\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li>\u300cTrace\/P\/F\u300d\u300cTrace Type\u300d\u3067\u300cVideo Avg\u300d\u3092\u9078\u629e\u3002 QSB\u306a\u3069\u4f1d\u642c\u4e0a\u306e\u5f71\u97ff\u3092\u6291\u3048\u308b\u305f\u3081\u3067\u3059\u306d\u3002<\/li>\n<li>\u3053\u3053\u3067\u79c1\u306e\u5834\u5408\u306f\u30d4\u30fc\u30af\u306e\u6e2c\u5b9a\u5024\u304c10.000000MHz\u306eWWV\u4fe1\u53f7\u3068\u3074\u3063\u305f\u308a\u4e00\u81f4\u3057\u3066\u3044\u307e\u3059\u3002\u3000\u3053\u306e\u305f\u3081\u6821\u6b63\u3092\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/1.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-22299\" src=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/1.bmp\" alt=\"\" width=\"800\" height=\"480\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/1.bmp 800w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/1-300x180.jpg 300w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/1-150x90.jpg 150w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/1-768x461.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<ul>\n<li>\u3082\u3057\u3053\u306e\u30d4\u30fc\u30af\u5024\u304c\u305a\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u306b\u5165\u3063\u3066\u8abf\u6574\u3092\u3057\u307e\u3059\u3002\u3000\u30d3\u30c7\u30aa\u306e\u4e2d\u3067\u3082\u8a00\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u306e\u30d3\u30c7\u30aa\u3067\u306f\u5224\u308a\u3084\u3059\u3044\u3088\u3046\u306b\u3042\u3089\u304b\u3058\u30816Hz \u7a0b\u305a\u3089\u3057\u3066\u3042\u308b\u3088\u3046\u3067\u3059\u3002<\/li>\n<li><span style=\"color: #ff0000;\"><strong>\u3053\u3053\u304b\u3089\u306e\u8a2d\u5b9a\u306f\u81ea\u5df1\u8cac\u4efb\u3067\u3084\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6271\u3044\u65b9\u3092\u9593\u9055\u3048\u308b\u3068\u3059\u3079\u3066\u306e\u6821\u6b63\u30c7\u30fc\u30bf\u304c\u6d88\u6ec5\u3057\u307e\u3059\u3002<\/strong><\/span><\/li>\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u306b\u5165\u308b\u65b9\u6cd5\u306f\u30d3\u30c7\u30aa\u306e\u3084\u308a\u65b9\u3067\u306f\u73fe\u5728\u306eFW\u3067\u306f\u52d5\u4f5c\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3000\u3044\u308d\u3044\u308d\u3068\u8abf\u3079\u305f\u7d50\u679c\u3001\u6b21\u306e\u3088\u3046\u306b\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u306b\u5165\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3000\u300cTrace\/P\/F\u300d\u300cTG\u300d\u300cMarker Fcn\u300d\u300cMeas Setup\u300d\u300cSystem\u300d\u300cPrint Setup\u300d\u300cStorage\u300d\u300cMeas Setup\u300d\u300cMeas Setup\u300d \u3053\u306e\u9806\u306b9\u500b\u306e\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u307e\u3059\u3002\u3000\u3059\u308b\u3068\u300cWelcome to Maintenance Mode\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u753b\u9762\u306b\u51fa\u307e\u3059\u3002<\/li>\n<li>\u3053\u306e\u72b6\u614b\u3067\u300cSystem\u300d\u306e2\u30da\u30fc\u30b8\u76ee\u306bService\u3068\u3044\u3046\u30e1\u30cb\u30e5\u30fc\u304c\u51fa\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<a href=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/4.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-22303\" src=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/4.bmp\" alt=\"\" width=\"800\" height=\"480\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/4.bmp 800w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/4-300x180.jpg 300w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/4-150x90.jpg 150w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/4-768x461.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a> <a href=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/2.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-22301\" src=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/2.bmp\" alt=\"\" width=\"800\" height=\"480\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/2.bmp 800w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/2-300x180.jpg 300w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/2-150x90.jpg 150w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/2-768x461.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/li>\n<li>\u3053\u3053\u304b\u3089\u300cService\u300d\u300cCalibration\u300d\u3067\u51fa\u3066\u304f\u308b\u30e1\u30cb\u30e5\u30fc\u306e\u300cRef DAC\u300d\u306e\u6570\u5b57\u3092\u5909\u3048\u308b\u3053\u3068\u3067\u6821\u6b63\u304c\u3067\u304d\u307e\u3059\u3002<a href=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/3.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-22302\" src=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/3.bmp\" alt=\"\" width=\"800\" height=\"480\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/3.bmp 800w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/3-300x180.jpg 300w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/3-150x90.jpg 150w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2023\/09\/3-768x461.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/li>\n<\/ul>\n<p><strong><span style=\"color: #ff0000;\">\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u306e\u64cd\u4f5c\u306f\u96a0\u3057\u30b3\u30de\u30f3\u30c9\u306a\u306e\u3067\u304f\u308c\u3050\u308c\u3082\u64cd\u4f5c\u306f\u9593\u9055\u3044\u306e\u306a\u3044\u3088\u3046\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3000\u81ea\u5df1\u8cac\u4efb\u3067\u3059\u3002\u3000\u7279\u306bCalibration\u30e1\u30cb\u30e5\u30fc\u306eClr Int 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