{"id":5021,"date":"2013-07-15T16:08:34","date_gmt":"2013-07-15T07:08:34","guid":{"rendered":"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/?p=5021"},"modified":"2026-07-14T04:45:33","modified_gmt":"2026-07-13T19:45:33","slug":"2850mhz-%e3%83%80%e3%82%a4%e3%83%9d%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%b3%e3%83%86%e3%83%8a","status":"publish","type":"post","link":"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/2013\/07\/15\/2850mhz-%e3%83%80%e3%82%a4%e3%83%9d%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%b3%e3%83%86%e3%83%8a\/","title":{"rendered":"28\/50MHz \u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca"},"content":{"rendered":"<p>\u4eca\u65e5\u306f\u3001\u30aa\u30fc\u30eb\u6a2a\u6d5c\u30b3\u30f3\u30c6\u30b9\u30c8\u3068\u30cf\u30e0\u30e9\u30f3\u30c9\u30b5\u30de\u30fc\u30b3\u30f3\u30c6\u30b9\u30c8\u304c\u958b\u50ac\u3055\u308c\u307e\u3057\u305f\u3002\u3000\u4ed6\u306b\u3082\u30aa\u30fc\u30eb\u6ecb\u8cc0\u30b3\u30f3\u30c6\u30b9\u30c8\u3001\u30a8\u30b9\u30ab\u30eb\u30b46m CW\u30b3\u30f3\u30c6\u30b9\u30c8\u3001\u5168\u56fd\u9ad8\u6821\u30b3\u30f3\u30c6\u30b9\u30c8\u3068\u3001\u30ed\u30fc\u30ab\u30eb\u30b3\u30f3\u30c6\u30b9\u30c8\u304c\u76ee\u767d\u62bc\u3057\u3067\u3059\u3002<\/p>\n<p>\u79c1\u306f\u3001\u30aa\u30fc\u30eb\u6a2a\u6d5c\u30b3\u30f3\u30c6\u30b9\u30c8\u3068\u3001\u30cf\u30e0\u30e9\u30f3\u30c9\u30b5\u30de\u30fc\u30b3\u30f3\u30c6\u30b9\u30c8\u306b\u53c2\u52a0\u3002\u3000\u6691\u304f\u3066\u3001\u305d\u308c\u4ee5\u4e0a\u306f\u7121\u7406\u3067\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u30aa\u30fc\u30eb\u6a2a\u6d5c\u30b3\u30f3\u30c6\u30b9\u30c8\u3068\u30cf\u30e0\u30e9\u30f3\u30c9\u30b5\u30de\u30fc\u30b3\u30f3\u30c6\u30b9\u30c8\u306f\u3001\u4ee5\u524d\u3001\u4e21\u65b9\u3068\u30828\u6708\u5b9f\u65bd\u3067\u3057\u305f\u304c\u3001\u6628\u5e74\u304b\u3089\u304b\u306a\uff1f\u30017\u6708\u306e\u6d77\u306e\u65e5\u306b\u5909\u66f4\u306b\u306a\u3063\u305f\u3088\u3046\u3067\u3059\u3002\u3000\u3053\u306e2\u3064\u306e\u30b3\u30f3\u30c6\u30b9\u30c8\u304c\u30bb\u30c3\u30c8\u3067\u65e5\u7a0b\u5909\u66f4\u306b\u306a\u3063\u305f\u3088\u3046\u3067\u3059\u3002\u3000\u30aa\u30fc\u30eb\u6a2a\u6d5c\u30b3\u30f3\u30c6\u30b9\u30c8\u306f28MHz\u306e\u307f\u3001\u30cf\u30e0\u30e9\u30f3\u30c9\u30b5\u30de\u30fc\u30b3\u30f3\u30c6\u30b9\u30c8\u306f50MHz\u306e\u307f\u3067\u3059\u3002\u3000\u30aa\u30fc\u30eb\u6a2a\u6d5c\u30b3\u30f3\u30c6\u30b9\u30c8\u3067\u306f\u3042\u307e\u308aCW\u5c40\u306e\u51fa\u3066\u3044\u306a\u3044\u3068\u3053\u308d\u306b\u79fb\u52d5\u3059\u308b\u8981\u8acb\u3082\u3042\u308a\u3001\u4eca\u56de28MHz\u3068\u3001\u305d\u306e\u3042\u3068\u884c\u308f\u308c\u308b\u30cf\u30e0\u30e9\u30f3\u30c9\u30b5\u30de\u30fc\u30b3\u30f3\u30c6\u30b9\u30c8\u7528\u306b\u300150MHz\u306e\u3042\u307e\u308a\u5927\u304d\u304f\u306a\u3044\u30a2\u30f3\u30c6\u30ca\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u3000\u3053\u308c\u3089\u30b3\u30f3\u30c6\u30b9\u30c8\u306f\u5e02\u8857\u5730\u79fb\u52d5\u3068\u306a\u308b\u306e\u3067\u3001\u3042\u307e\u308a\u5927\u304d\u306a\u30a2\u30f3\u30c6\u30ca\u306f\u4e0a\u3052\u3089\u308c\u306a\u3044\u305f\u3081\u3067\u3059\u3002\u3000\u99d0\u8eca\u5834\u306e\u30b9\u30da\u30fc\u30b9\u3067\u30a2\u30f3\u30c6\u30ca\u3092\u4e0a\u3052\u308b\u3053\u3068\u3092\u8003\u3048\u3001\u307e\u305f\u6a2a\u6d5c\u5e02\u5185\u3067\u306e\u904b\u7528\u3092\u8003\u3048\u3001\u56db\u65b9\u516b\u65b9\u304b\u3089\u306e\u5165\u611f\u306b\u5bfe\u5fdc\u3059\u3079\u304f\u3001\u3067\u304d\u308b\u3060\u3051\u30d3\u30fc\u30e0\u5fd7\u5411\u6027\u306e\u7121\u3044\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u3068\u3057\u307e\u3057\u305f\u3002\u3000\u307e\u305f\u4e21\u65b9\u306e\u30b3\u30f3\u30c6\u30b9\u30c8\u306b\u51fa\u308b\u305f\u3081\u306b28MHz\u306850MHz\u306e2\u30d0\u30f3\u30c9\u3067\u3042\u308b\u5fc5\u8981\u304b\u3089\u3001\u30ae\u30dc\u30b7\u30a2\u30f3\u30c6\u30ca\u3068\u3057\u307e\u3057\u305f\u3002\u3000\u30a2\u30f3\u30c6\u30ca\u306f10m\u9ad8\u306e\u30dd\u30fc\u30eb\u306b\u4e57\u305b\u308b\u3053\u3068\u3092\u8003\u3048\u307e\u3057\u305f\u3002\u3000\u30a8\u30ec\u30e1\u30f3\u30c8\u306f\u30ae\u30dc\u30b7\u30a2\u30f3\u30c6\u30ca\u3068\u3059\u308b\u306e\u3067\u30ef\u30a4\u30e4\u30fc\u3067\u826f\u3044\u306e\u3067\u3059\u304c\u3001\u30a8\u30ec\u30e1\u30f3\u30c8\u306e\u652f\u3048\u3092\u4f55\u306b\u3059\u308b\u304b\u8003\u3048\u307e\u3057\u305f\u3002<\/p>\n<p>\u65e5\u66dc\u5927\u5de5\u30bb\u30f3\u30bf\u30fc\u3067\u3001\u5712\u82b8\u30b3\u30fc\u30ca\u30fc\u306b\u3042\u308b\u3001\u7dd1\u8272\u306e\u652f\u67f1\u3068\u3001\u30c0\u30f3\u30dd\u30fc\u30eb\u3068\u547c\u3070\u308c\u308b\u30b0\u30e9\u30b9\u30d5\u30a1\u30a4\u30d0\u30fc\u88fd\u306e\u7d30\u3044\u652f\u67f1\u3092\u4f7f\u3046\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002\u3000\u7dd1\u8272\u306e\u592a\u3044\u3082\u306e\u306f1.8m\u9577\u306711mm\u5f84\u306e\u3082\u306e\u3001\u30c0\u30f3\u30dd\u30fc\u30eb\u3068\u547c\u3070\u308c\u308b\u652f\u67f1\u306f6.5mm\u306e2.1m\u306e\u3082\u306e\u30922\u672c\u3001\u4f7f\u3044\u307e\u3057\u305f\u3002\u3000\u3069\u3061\u3089\u3082\u5712\u82b8\u30b3\u30fc\u30ca\u30fc\u3067\u3088\u304f\u898b\u308b\u3082\u306e\u3067\u3059\u3002\u3000\u30c0\u30f3\u30dd\u30fc\u30eb\u306f\u30b0\u30e9\u30b9\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u30dd\u30fc\u30eb\u3092\u7279\u6b8a\u6a39\u8102\u3067\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u305f\u3082\u306e\u3067\u3001\u7d30\u304f\u3066\u8efd\u304f\u3001\u6298\u308c\u306b\u304f\u3044\u69cb\u9020\u3067\u30a2\u30f3\u30c6\u30ca\u306b\u306f\u6700\u9069\u3067\u3059\u3002\u30005.5mm\u5f84\u306e\u307b\u3046\u304c\u4e00\u822c\u7684\u306e\u3088\u3046\u3067\u3059\u304c\u30015.5mm\u3067\u306f\u7d30\u304f\u3066\u3001\u3057\u306a\u308a\u904e\u304e\u3066\u3057\u307e\u3044\u307e\u3059\u306e\u30676.5mm\u5f84\u3092\u4f7f\u7528\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-element.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5035\" alt=\"28_50MHz dipole element\" src=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-element.jpg\" width=\"448\" height=\"336\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-element.jpg 448w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-element-300x224.jpg 300w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n<p>\u3053\u306e\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u309210m\u30dd\u30fc\u30eb\u306b\u53d6\u308a\u4ed8\u3051\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u30a2\u30f3\u30c6\u30ca\u81ea\u4f53\u304c\u8efd\u3044\u306e\u3067\u3001\u30af\u30ed\u30b9\u30de\u30a6\u30f3\u30c8\u306e\u3088\u3046\u306a\u5927\u639b\u304b\u308a\u306a\u3082\u306e\u3067\u306a\u304f\u3066\u3082\u5927\u4e08\u592b\u3001L\u578b\u30a2\u30f3\u30b0\u30eb\u3067\u81ea\u4f5c\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5039\" alt=\"28_50MHz dipole Langle1\" src=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle1.jpg\" width=\"448\" height=\"336\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle1.jpg 448w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle1-300x224.jpg 300w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-balun.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5038\" alt=\"28_50MHz dipole balun\" src=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-balun.jpg\" width=\"448\" height=\"336\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-balun.jpg 448w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-balun-300x224.jpg 300w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5036\" alt=\"28_50MHz dipole Langle3\" src=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle3.jpg\" width=\"448\" height=\"336\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle3.jpg 448w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle3-300x224.jpg 300w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n<p>\u5199\u771f\u306e\u3088\u3046\u306bL\u578b\u30a2\u30f3\u30b0\u30eb\u306bU\u30dc\u30eb\u30c8\u3092\u3064\u3051\u3001\u8776\u30cd\u30b8\u3067\u6b62\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u3000\u305d\u3057\u3066\u7dd1\u8272\u306e\u5712\u82b8\u30dd\u30fc\u30eb\u3092\u3001L\u578b\u30a2\u30f3\u30b0\u30eb\u3068\u540c\u3058\u3088\u3046\u306a\u5e73\u578b\u306e\u677f\u3067\u631f\u3093\u3067\u56fa\u5b9a\u3057\u307e\u3059\u3002\u3000\u30cd\u30b8\u306f4mm\u30cd\u30b88\u672c\u3067\u56fa\u5b9a\u3002\u3000\u305d\u306e\u3046\u3061\u4e00\u672c\u3060\u3051\u5c11\u3057\u9577\u3044\u3082\u306e\u3068\u3057\u3066\u304a\u304d\u3001\u3053\u3053\u306b\u30d0\u30e9\u30f3\u3092\u56fa\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5037\" alt=\"28_50MHz dipole Langle2\" src=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle2.jpg\" width=\"448\" height=\"336\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle2.jpg 448w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-Langle2-300x224.jpg 300w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n<p>\u3042\u3068\u306f\u7dd1\u8272\u306e\u30dd\u30fc\u30eb\u3068\u3001\u30c0\u30f3\u30dd\u30fc\u30eb\u3092\u30a4\u30f3\u30b7\u30e5\u30ed\u30c3\u30af\u30bf\u30a4\u3067\u3064\u306a\u3044\u3067\u3001\u30a2\u30f3\u30c6\u30ca\u30a8\u30ec\u30e1\u30f3\u30c8\u3092\u3053\u306e\u652f\u67f1\u306b\u6cbf\u3063\u3066\u6b62\u3081\u3066\u3044\u3051\u3070\u5b8c\u6210\u3002\u3000\u9014\u4e2d\u3067\u30ae\u30dc\u30b7\u7aef\u5b50\u3092\u5165\u308c\u306650MHz\u3067\u3082\u4f7f\u3048\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5041\" alt=\"28_50MHz dipole2\" src=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole2.jpg\" width=\"336\" height=\"448\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole2.jpg 336w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole2-224x300.jpg 224w\" sizes=\"auto, (max-width: 336px) 100vw, 336px\" \/><\/a><\/p>\n<p>\u65e5\u66dc\u306e\u5348\u5f8c\u3060\u3051\u3067\u4f5c\u6210\u3057\u305f\u8d85\u7c21\u5358\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u3067\u3059\u304c\u3001\u30d5\u30eb\u30b5\u30a4\u30ba\u306e\u30c0\u30a4\u30dd\u30fc\u30eb\u3060\u3051\u3042\u308a\u3001\u5e2f\u57df\u3082\u5e83\u304f\u3001SWR\u3082\u3070\u3063\u3061\u308a\u843d\u3061\u3066\u3044\u307e\u3059\u3002\u3000\u8efd\u304f\u3066\u3001\u4e08\u592b\u306a\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u306e\u5b8c\u6210\u3067\u3059\u3002<\/p>\n<p><a href=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5040\" alt=\"28_50MHz dipole\" src=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole.jpg\" width=\"448\" height=\"336\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole.jpg 448w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2013\/07\/28_50MHz-dipole-300x224.jpg 300w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\u8ffd\u8a18\u30002013\/7\/23 \u3000<a href=\"http:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/2013\/07\/23\/2850mhz-%E3%83%80%E3%82%A4%E3%83%9D%E3%83%BC%E3%83%AB%E3%82%A2%E3%83%B3%E3%83%86%E3%83%8A%E6%94%B9%E8%89%AF\/\" target=\"_blank\" rel=\"noopener\">28\/50MHz 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