{"id":12007,"date":"2026-03-29T15:21:11","date_gmt":"2026-03-29T07:21:11","guid":{"rendered":"https:\/\/safarimw.com\/?p=12007"},"modified":"2026-06-18T14:29:11","modified_gmt":"2026-06-18T06:29:11","slug":"how-to-decode-the-exact-frequency-of-a-2-4ghz-rf-signal","status":"publish","type":"post","link":"https:\/\/safarimw.com\/ja\/how-to-decode-the-exact-frequency-of-a-2-4ghz-rf-signal\/","title":{"rendered":"Struggling with 2.4GHz Noise? Master Resolution Bandwidth Settings"},"content":{"rendered":"<p>\u30ce\u30a4\u30ba\u306e\u591a\u30442.4GHz\u5e2f\u3067\u4fe1\u53f7\u3092\u898b\u3064\u3051\u308b\u306e\u306b\u82e6\u52b4\u3057\u3066\u3044\u307e\u3059\u304b\uff1fWi-Fi\u3084Bluetooth\u304b\u3089\u306e\u5e72\u6e09\u304c\u591a\u3044\u305f\u3081\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u9694\u96e2\u3059\u308b\u306e\u306f\u4e0d\u53ef\u80fd\u306b\u611f\u3058\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u79c1\u304c\u6848\u5185\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u3092\u898b\u3064\u3051\u308b\u306b\u306f <a href=\"https:\/\/www.centurylink.com\/home\/help\/internet\/wireless\/which-frequency-should-you-use.html\" target=\"_blank\" rel=\"noopener noreferrer\">2.4GHz<\/a><sup id=\"fnref-1\"><a href=\"#fn-1\" class=\"footnote-ref\">1<\/a><\/sup> \u4fe1\u53f7\u306e\u6b63\u78ba\u306a\u5468\u6ce2\u6570\u3092\u898b\u3064\u3051\u308b\u306b\u306f\u3001 <a href=\"https:\/\/www.tek.com\/en\/documents\/primer\/what-spectrum-analyzer-and-why-do-you-need-one\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6<\/a><sup id=\"fnref-2\"><a href=\"#fn-2\" class=\"footnote-ref\">2<\/a><\/sup>. \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u4e2d\u5fc3\u5468\u6ce2\u6570\u30922.45GHz\u306b\u8a2d\u5b9a\u3057\u3001\u30b9\u30d1\u30f3\u3092100MHz\u306b\u3057\u307e\u3059\u3002 <a href=\"https:\/\/www.everythingrf.com\/community\/what-is-rbw-and-vbw-in-a-spectrum-analyzer\" target=\"_blank\" rel=\"noopener noreferrer\">\u89e3\u50cf\u5ea6\u5e2f\u57df\u5e45\uff08RBW\uff09<\/a><sup id=\"fnref-3\"><a href=\"#fn-3\" class=\"footnote-ref\">3<\/a><\/sup> \u3092\u4e0b\u3052\u3066\u4fe1\u53f7\u3092\u9694\u96e2\u3057\u3001\u30de\u30fc\u30ab\u30fc\u3092\u4f7f\u3063\u3066\u8868\u793a\u306e\u6700\u3082\u9ad8\u3044\u30d4\u30fc\u30af\u306e\u5468\u6ce2\u6570\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002.<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/safarimw.com\/wp-content\/uploads\/2026\/03\/2.4Gpinpuyi.png\" alt=\"2.4GHz\u5e2f\u306e\u4fe1\u53f7\u3092\u8868\u793a\u3057\u3066\u3044\u308b\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\" title=\"2.4GHz RF\u4fe1\u53f7\u306e\u30c7\u30b3\u30fc\u30c9\"><\/p>\n<p>\u9867\u5ba2\u304b\u3089\u3053\u306e\u3088\u3046\u306a\u8cea\u554f\u3092\u3088\u304f\u53d7\u3051\u307e\u3059\u3002\u79c1\u306e\u4f1a\u793e\u306f <a href=\"https:\/\/www.seimw.com\/blog\/the-beginners-guide-to-rf-components-and-their-functions\/\" target=\"_blank\" rel=\"noopener noreferrer\">RF\u90e8\u54c1<\/a><sup id=\"fnref-4\"><a href=\"#fn-4\" class=\"footnote-ref\">4<\/a><\/sup>, \u306e\u88fd\u9020\u3092\u5c02\u9580\u3068\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u73fe\u5834\u306e\u30e6\u30fc\u30b6\u30fc\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u81ea\u8eab\u3082\u3053\u308c\u3089\u306e\u8ab2\u984c\u306b\u76f4\u9762\u3057\u3001\u9577\u5e74\u306b\u308f\u305f\u308a\u5b66\u3093\u3060\u3053\u3068\u3092\u5171\u6709\u3059\u308b\u306e\u3092\u697d\u3057\u3093\u3067\u3044\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u7c21\u5358\u306b\u805e\u3053\u3048\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u8a73\u7d30\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u30af\u30ea\u30a2\u3067\u6b63\u78ba\u306a\u7d50\u679c\u3092\u5f97\u308b\u9375\u3067\u3059\u3002\u5177\u4f53\u7684\u306a\u624b\u9806\u306b\u5165\u308b\u524d\u306b\u3001\u307e\u305a\u5fc5\u8981\u306a\u9053\u5177\u304c\u63c3\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002.<\/p>\n<h2>RF\u4fe1\u53f7\u306e\u30c7\u30b3\u30fc\u30c9\u3092\u59cb\u3081\u308b\u306b\u306f\u3069\u3093\u306a\u30c4\u30fc\u30eb\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/h2>\n<p>RF\u4fe1\u53f7\u3092\u89e3\u6790\u3057\u305f\u3044\u3051\u308c\u3069\u3001\u5fc5\u8981\u306a\u30c4\u30fc\u30eb\u304c\u308f\u304b\u3089\u306a\u3044\u3067\u3059\u304b\uff1f\u9593\u9055\u3063\u305f\u6a5f\u5668\u3092\u9078\u3076\u306e\u306f\u30b3\u30b9\u30c8\u306e\u304b\u304b\u308b\u30df\u30b9\u3067\u3042\u308a\u3001\u6b63\u3057\u3044\u7d50\u679c\u306b\u306f\u7e4b\u304c\u308a\u307e\u305b\u3093\u3002\u79c1\u306f\u306f\u3063\u304d\u308a\u3068\u3057\u305f\u30ea\u30b9\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u4e3b\u306a\u30c4\u30fc\u30eb\u306f <a href=\"https:\/\/www.tek.com\/en\/documents\/primer\/what-spectrum-analyzer-and-why-do-you-need-one\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6<\/a><sup id=\"fnref-2\"><a href=\"#fn-2\" class=\"footnote-ref\">2<\/a><\/sup>. \u3067\u3059\u30022.4GHz\u5e2f\u306b\u5bfe\u5fdc\u3057\u305f\u30a2\u30f3\u30c6\u30ca\u3068\u3001\u30a2\u30f3\u30c6\u30ca\u3092\u30a2\u30ca\u30e9\u30a4\u30b6\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u9ad8\u54c1\u8cea\u306aRF\u30b1\u30fc\u30d6\u30eb\uff08\u4f8b\uff1aSMA\uff09\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u308c\u30893\u3064\u304c\u57fa\u672c\u7684\u306aRF\u4fe1\u53f7\u5206\u6790\u30ad\u30c3\u30c8\u3092\u69cb\u6210\u3057\u307e\u3059\u3002.<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/safarimw.com\/wp-content\/uploads\/2026\/03\/RF-signal-analyzer-laid-out-on-a-table.png\" alt=\"\u30c6\u30fc\u30d6\u30eb\u306b\u914d\u7f6e\u3055\u308c\u305fRF\u4fe1\u53f7\u89e3\u6790\u306e\u305f\u3081\u306e\u5fc5\u9808\u30c4\u30fc\u30eb\" title=\"RF\u89e3\u6790\u30c4\u30fc\u30eb\"><\/p>\n<p>\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u3092\u305d\u308c\u305e\u308c\u8a73\u3057\u304f\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4e88\u7b97\u3068\u30cb\u30fc\u30ba\u306b\u5408\u3063\u305f\u3082\u306e\u3092\u9078\u3076\u3053\u3068\u304c\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u6700\u521d\u306b\u59cb\u3081\u305f\u9803\u3092\u601d\u3044\u51fa\u3059\u3068\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3057\u3088\u3046\u3068\u3057\u3066\u3001\u4fe1\u53f7\u304c\u5931\u308f\u308c\u308b\u524d\u306b\u5206\u6790\u5668\u306b\u5c4a\u304f\u524d\u306b\u898b\u3064\u3051\u308b\u306e\u306b\u4f55\u6642\u9593\u3082\u82e6\u52b4\u3057\u305f\u3053\u3068\u3092\u899a\u3048\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>\u30b7\u30b0\u30ca\u30eb\u30cf\u30f3\u30c6\u30a3\u30f3\u30b0\u306e\u305f\u3081\u306e\u30b3\u30a2\u30c4\u30fc\u30eb<\/h3>\n<p>\u3042\u306a\u305f\u306e\u6210\u529f\u306f\u307b\u3068\u3093\u3069\u5b8c\u5168\u306b\u4e09\u3064\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<ol>\n<li><strong>\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\uff1a<\/strong> \u3053\u308c\u306f\u3042\u306a\u305f\u306e\u8a2d\u5b9a\u306e\u6838\u5fc3\u90e8\u5206\u3067\u3059\u3002\u6e2c\u5b9a\u3057\u3066\u8868\u793a\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3067\u3059\u3002 <a href=\"https:\/\/electronics.stackexchange.com\/questions\/98033\/how-can-the-signal-strength-of-an-rf-signal-be-measured\" target=\"_blank\" rel=\"noopener noreferrer\">\u96fb\u6ce2\u5f37\u5ea6<\/a><sup id=\"fnref-5\"><a href=\"#fn-5\" class=\"footnote-ref\">5<\/a><\/sup> a<a href=\"https:\/\/www.reddit.com\/r\/HamRadio\/comments\/17q7g3q\/can_someone_explain_gain_to_me_with_antennas\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u5229\u76ca<\/a><sup id=\"fnref-6\"><a href=\"#fn-6\" class=\"footnote-ref\">6<\/a><\/sup>\u6700\u983b\u5468\u6ce2\u6570\u3002\u307e\u308b\u3067\u898b\u3048\u306a\u3044\u96fb\u6ce2\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u76ee\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u624b\u9803\u306a\u4fa1\u683c\u306e\u9078\u629e\u80a2\u3068\u3057\u3066\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Software-defined_radio\" target=\"_blank\" rel=\"noopener noreferrer\">USB\u3092\u5229\u7528\u3057\u305f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5b9a\u7fa9\u7121\u7dda\u6a5f\uff08SDR\uff09<\/a><sup id=\"fnref-7\"><a href=\"#fn-7\" class=\"footnote-ref\">7<\/a><\/sup>, \u5b66\u7fd2\u306b\u6700\u9069\u3067\u3059\u3002\u5c02\u9580\u7684\u306a\u4f5c\u696d\u306b\u306f\u3001\u5c02\u7528\u306e <a href=\"https:\/\/www.keysight.com\/used\/us\/en\/knowledge\/glossary\/oscilloscopes\/what-is-a-spectrum-analyzer\" target=\"_blank\" rel=\"noopener noreferrer\">\u5353\u4e0a\u5206\u6790\u88c5\u7f6e<\/a><sup id=\"fnref-8\"><a href=\"#fn-8\" class=\"footnote-ref\">8<\/a><\/sup> \u611f\u5ea6\u3068\u901f\u5ea6\u306e\u9762\u3067\u306f\u308b\u304b\u306b\u512a\u308c\u305f\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u30a2\u30f3\u30c6\u30ca\uff1a<\/strong> \u30a2\u30f3\u30c6\u30ca\u306f\u3042\u306a\u305f\u306e\u8033\u3067\u3059\u3002\u7a7a\u6c17\u4e2d\u306eRF\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u6349\u3048\u307e\u3059\u30022.4GHz\u306e\u5834\u5408\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u300c\u30e9\u30d0\u30fc\u30c0\u30c3\u30ad\u30fc\u300d\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u304c\u4e00\u822c\u7684\u306a\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5f31\u3044\u4fe1\u53f7\u3084\u9060\u304f\u306e\u4fe1\u53f7\u3092\u63a2\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Directional_antenna\" target=\"_blank\" rel=\"noopener noreferrer\">\u6307\u5411\u6027\u30a2\u30f3\u30c6\u30ca<\/a><sup id=\"fnref-9\"><a href=\"#fn-9\" class=\"footnote-ref\">9<\/a><\/sup> \u516b\u6728\u3084\u30d1\u30c3\u30c1\u30a2\u30f3\u30c6\u30ca\u306e\u65b9\u304c\u306f\u308b\u304b\u306b\u52b9\u679c\u7684\u306b\u52d5\u4f5c\u3057\u307e\u3059\u3002.<\/li>\n<li><strong>\u30b1\u30fc\u30d6\u30eb\u3068\u30a2\u30c0\u30d7\u30bf\u30fc\uff1a<\/strong> \u3053\u308c\u3089\u306f\u3059\u3079\u3066\u3092\u3064\u306a\u3050\u795e\u7d4c\u3067\u3059\u3002\u826f\u3044\u30b1\u30fc\u30d6\u30eb\u306e\u91cd\u8981\u6027\u3092\u904e\u5c0f\u8a55\u4fa1\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u5b89\u4fa1\u3067\u640d\u5931\u306e\u591a\u3044\u30b1\u30fc\u30d6\u30eb\u306f\u4fe1\u53f7\u3092\u53f0\u7121\u3057\u306b\u3057\u307e\u3059\u3002\u4f4e\u640d\u5931\u306e\u3082\u306e\u3092\u63a2\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.truecable.com\/blogs\/cable-academy\/rg59-vs-rg6-which-coaxial-cable-is-right-for-your-needs?srsltid=AfmBOop4l15q8iUjTbG8a1wEw5qDaKA1xoDcXf8bFbPWixZZRQyx6k5Y\" target=\"_blank\" rel=\"noopener noreferrer\">\u540c\u8ef8\u30b1\u30fc\u30d6\u30eb<\/a><sup id=\"fnref-10\"><a href=\"#fn-10\" class=\"footnote-ref\">10<\/a><\/sup> \u3053\u306e\u5468\u6ce2\u6570\u7bc4\u56f2\u306b\u306f\u901a\u5e38SMA\u30bf\u30a4\u30d7\u306e\u6b63\u3057\u3044\u30b3\u30cd\u30af\u30bf\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002.<\/li>\n<\/ol>\n<p>\u3053\u3061\u3089\u306f\u9078\u629e\u80a2\u3092\u6bd4\u8f03\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u8868\u3067\u3059\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30c4\u30fc\u30eb<\/th>\n<th>\u4e88\u7b97\u306b\u512a\u3057\u3044\u30aa\u30d7\u30b7\u30e7\u30f3<\/th>\n<th>\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u30b0\u30ec\u30fc\u30c9\u306e\u30aa\u30d7\u30b7\u30e7\u30f3<\/th>\n<th>\u8003\u616e\u3059\u3079\u304d\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6<\/strong><\/td>\n<td>USB\u30d9\u30fc\u30b9\u306eSDR\uff08\u4f8b\uff1aRTL-SDR\u3001HackRF\uff09<\/td>\n<td>\u5353\u4e0a\u578b\u30a2\u30ca\u30e9\u30a4\u30b6\uff08\u4f8b\uff1aKeysight\u3001R&amp;S\uff09<\/td>\n<td>\u5468\u6ce2\u6570\u7bc4\u56f2, <a href=\"https:\/\/www.everythingrf.com\/community\/what-is-rbw-and-vbw-in-a-spectrum-analyzer\" target=\"_blank\" rel=\"noopener noreferrer\">\u89e3\u50cf\u5ea6\u5e2f\u57df\u5e45\uff08RBW\uff09<\/a><sup id=\"fnref-3\"><a href=\"#fn-3\" class=\"footnote-ref\">3<\/a><\/sup><\/td>\n<\/tr>\n<tr>\n<td><strong>\u30a2\u30f3\u30c6\u30ca<\/strong><\/td>\n<td>\u5168\u65b9\u5411\u6027\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca<\/td>\n<td>\u6307\u5411\u6027\u30e4\u30ae\u30a2\u30f3\u30c6\u30ca\u307e\u305f\u306f\u9ad8\u5229\u5f97\u30d1\u30c3\u30c1\u30a2\u30f3\u30c6\u30ca<\/td>\n<td>\u5229\u5f97\u3001\u6307\u5411\u6027\u3001\u5468\u6ce2\u6570\u306e\u4e00\u81f4<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30b1\u30fc\u30d6\u30eb<\/strong><\/td>\n<td>\u6a19\u6e96\u306eRG58\u540c\u8ef8\u30b1\u30fc\u30d6\u30eb<\/td>\n<td>\u4f4e\u640d\u5931\u306eLMR-400\u307e\u305f\u306f\u985e\u4f3c\u306e\u30b1\u30fc\u30d6\u30eb<\/td>\n<td>\u4fe1\u53f7\u640d\u5931\uff08dB\/m\uff09\u3001\u30b3\u30cd\u30af\u30bf\u306e\u54c1\u8cea<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/h2>\n<p>\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u3092\u898b\u3066\u3044\u307e\u3059\u304c\u3001\u753b\u9762\u306b\u306f\u30ce\u30a4\u30ba\u3060\u3089\u3051\u3067\u3059\u3002\u4fe1\u53f7\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u8a2d\u5b9a\u3059\u3079\u304d\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u307e\u305a\u3001\u4e2d\u5fc3\u5468\u6ce2\u6570\u30922.45 GHz\u306b\u8a2d\u5b9a\u3057\u3001\u30b9\u30d1\u30f3\u3092100 MHz\u306b\u3057\u3066\u5168\u4f53\u3092\u8868\u793a\u3057\u307e\u3059 <a href=\"https:\/\/www.retevis.com\/blog\/what-is-ism-band-radio-frequency-band?srsltid=AfmBOoomnjivPyhh6Nka827Bv3aZRhppyagn5pS4IVMUdbxo2zLCajL-\" target=\"_blank\" rel=\"noopener noreferrer\">ISM\u30d0\u30f3\u30c9<\/a><sup id=\"fnref-11\"><a href=\"#fn-11\" class=\"footnote-ref\">11<\/a><\/sup>. \u3092\u8868\u793a\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u4fe1\u53f7\u30d4\u30fc\u30af\u304c\u4e0a\u90e8\u4ed8\u8fd1\u306b\u6765\u308b\u307e\u3067\u57fa\u6e96\u30ec\u30d9\u30eb\u3092\u8abf\u6574\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001 <a href=\"https:\/\/www.everythingrf.com\/community\/what-is-rbw-and-vbw-in-a-spectrum-analyzer\" target=\"_blank\" rel=\"noopener noreferrer\">\u89e3\u50cf\u5ea6\u5e2f\u57df\u5e45\uff08RBW\uff09<\/a><sup id=\"fnref-3\"><a href=\"#fn-3\" class=\"footnote-ref\">3<\/a><\/sup> \u500b\u5225\u306e\u4fe1\u53f7\u3092\u30ce\u30a4\u30ba\u304b\u3089\u5206\u96e2\u3059\u308b\u3053\u3068\u3002.<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/safarimw.com\/wp-content\/uploads\/2026\/03\/pinpuyishiyitu-1.png\" alt=\"\u91cd\u8981\u306a\u8a2d\u5b9a\u3092\u793a\u3059\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u753b\u9762\u306e\u30af\u30ed\u30fc\u30ba\u30a2\u30c3\u30d7\" title=\"\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u306e\u8a2d\u5b9a\"><\/p>\n<p>\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u6b63\u3057\u304f\u8abf\u6574\u3059\u308b\u3053\u3068\u306f\u6700\u521d\u306f\u79d1\u5b66\u3088\u308a\u3082\u82b8\u8853\u306b\u8fd1\u3044\u3067\u3059\u304c\u3001\u3059\u3050\u306b\u611f\u899a\u3092\u3064\u304b\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u624b\u52d5\u30e9\u30b8\u30aa\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u30c0\u30a4\u30e4\u30eb\u3092\u614e\u91cd\u306b\u8abf\u6574\u3057\u3066\u5468\u6ce2\u6570\u3092\u898b\u3064\u3051\u3001\u6b21\u306b\u5fae\u8abf\u6574\u3057\u3066\u30af\u30ea\u30a2\u306a\u97f3\u58f0\u3092\u5f97\u308b\u306e\u3067\u3059\u3002\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u3082\u975e\u5e38\u306b\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u306f\u8996\u899a\u7684\u3067\u3059\u3002\u76ee\u6a19\u306e\u4fe1\u53f7\u3092\u4ed6\u306e\u3059\u3079\u3066\u304b\u3089\u306f\u3063\u304d\u308a\u3068\u969b\u7acb\u305f\u305b\u308b\u3053\u3068\u304c\u76ee\u7684\u3067\u3059\u3002\u3053\u308c\u304b\u3089\u3001\u6700\u3082\u91cd\u8981\u306a3\u3064\u306e\u8a2d\u5b9a\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002.<\/p>\n<h3>\u300c\u30d3\u30c3\u30b0\u30b9\u30ea\u30fc\u300d\u8a2d\u5b9a\u306e\u30de\u30b9\u30bf\u30fc<\/h3>\n<p>\u4fe1\u53f7\u3092\u898b\u3064\u3051\u308b\u80fd\u529b\u306f\u3001\u30a2\u30ca\u30e9\u30a4\u30b6\u306e3\u3064\u306e\u4e3b\u8981\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u3069\u308c\u3060\u3051\u3046\u307e\u304f\u64cd\u4f5c\u3067\u304d\u308b\u304b\u306b\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n<ol>\n<li>\n<h3>\u4e2d\u5fc3\u5468\u6ce2\u6570\u3068\u30b9\u30d1\u30f3<\/h3>\n<p>\u3053\u308c\u306f\u30ab\u30e1\u30e9\u306e\u30ba\u30fc\u30e0\u3068\u30d1\u30f3\u6a5f\u80fd\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002 <strong>\u4e2d\u5fc3\u5468\u6ce2\u6570<\/strong> \u306f\u8996\u70b9\u3092\u5411\u3051\u308b\u5834\u6240\u3067\u3042\u308a\u3001 <strong>\u30b9\u30d1\u30f3<\/strong> \u306f\u8996\u91ce\u306e\u5e83\u3055\u3067\u3059\u30022.4GHz\u306e\u4fe1\u53f7\u3092\u898b\u3064\u3051\u308b\u306b\u306f\u3001\u826f\u3044\u51fa\u767a\u70b9\u3068\u3057\u3066\u4e2d\u5fc3\u5468\u6ce2\u6570\u30922.45 GHz\u3001\u30b9\u30d1\u30f3\u3092100 MHz\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30012.4 GHz\u304b\u30892.5 GHz\u307e\u3067\u306e\u672a\u8a31\u53ef\u30d0\u30f3\u30c9\u5168\u4f53\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u8208\u5473\u306e\u3042\u308b\u4fe1\u53f7\u304c\u898b\u3048\u305f\u3089\u3001\u30b9\u30d1\u30f3\u3092\u72ed\u3081\u3066\u4e2d\u5fc3\u5468\u6ce2\u6570\u3092\u8abf\u6574\u3057\u3001\u3088\u308a\u8a73\u7d30\u306b\u300c\u30ba\u30fc\u30e0\u30a4\u30f3\u300d\u3057\u3066\u89b3\u5bdf\u3067\u304d\u307e\u3059\u3002.<\/p>\n<\/li>\n<li>\n<h3>\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30ec\u30d9\u30eb<\/h3>\n<p>\u3053\u308c\u306f\u753b\u9762\u306e\u5782\u76f4\u8ef8\u306e\u4e0a\u7aef\u306e\u96fb\u529b\u30ec\u30d9\u30eb\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u4fe1\u53f7\u304c\u9ad8\u3059\u304e\u3066\u753b\u9762\u304b\u3089\u306f\u307f\u51fa\u3059\u5834\u5408\u306f\u3001\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30ec\u30d9\u30eb\u3092\u4e0a\u3052\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u9006\u306b\u3001\u4fe1\u53f7\u304c\u4f4e\u3059\u304e\u3066\u30ce\u30a4\u30ba\u306e\u4e2d\u306b\u57cb\u3082\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30ec\u30d9\u30eb\u3092\u4e0b\u3052\u307e\u3059\u3002\u3053\u306e\u8a2d\u5b9a\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u3001\u4fe1\u53f7\u304c\u304d\u308c\u3044\u306b\u30d5\u30ec\u30fc\u30df\u30f3\u30b0\u3055\u308c\u3001\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u5185\u90e8\u6e1b\u8870\u5668\u3068\u4f75\u7528\u3057\u3066\u3001\u5f37\u3044\u4fe1\u53f7\u306b\u3088\u308b\u30a2\u30ca\u30e9\u30a4\u30b6\u306e\u611f\u5ea6\u306e\u904e\u8ca0\u8377\u3092\u9632\u304e\u307e\u3059\u3002.<\/p>\n<\/li>\n<li>\n<h3>\u89e3\u50cf\u5ea6\u5e2f\u57df\u5e45\uff08RBW\uff09<\/h3>\n<p>\u3053\u308c\u306f\u6700\u3082\u91cd\u8981\u306a\u8a2d\u5b9a\u3067\u3042\u308a\u3001\u660e\u77ad\u3055\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002RBW\u306f\u3001\u30ec\u30f3\u30ba\u306e\u5927\u304d\u3055\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u5c0f\u3055\u306aRBW\u306f\u3088\u308a\u30b7\u30e3\u30fc\u30d7\u3067\u8a73\u7d30\u306a\u8996\u754c\u3092\u63d0\u4f9b\u3057\u3001\u975e\u5e38\u306b\u8fd1\u3044\u5468\u6ce2\u6570\u306e\u4fe1\u53f7\u3092\u5206\u96e2\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5c0f\u3055\u306aRBW\u306f\u30b9\u30ad\u30e3\u30f3\u6642\u9593\u3082\u9045\u304f\u306a\u308a\u307e\u3059\u3002\u5927\u304d\u306aRBW\u306f\u9ad8\u901f\u3067\u3059\u304c\u3001\u5f31\u3044\u4fe1\u53f7\u3084\u96a3\u63a5\u3059\u308b\u4fe1\u53f7\u3092\u307c\u3084\u3051\u3055\u305b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30d0\u30e9\u30f3\u30b9\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n<\/li>\n<\/ol>\n<table>\n<thead>\n<tr>\n<th>\u8a2d\u5b9a<\/th>\n<th>\u305d\u308c\u304c\u5236\u5fa1\u3059\u308b\u3082\u306e<\/th>\n<th>\u5024\u3092\u4e0b\u3052\u308b\u3068\u3069\u3046\u306a\u308b\u304b...<\/th>\n<th>\u5024\u3092\u4e0a\u3052\u308b\u3068\u3069\u3046\u306a\u308b\u304b...<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u30b9\u30d1\u30f3<\/strong><\/td>\n<td>\u898b\u3048\u308b\u5468\u6ce2\u6570\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u5e45\u3002.<\/td>\n<td>\u3088\u308a\u72ed\u3044\u5468\u6ce2\u6570\u7bc4\u56f2\u306b\u30ba\u30fc\u30e0\u30a4\u30f3\u3057\u307e\u3059\u3002.<\/td>\n<td>\u3088\u308a\u5e83\u3044\u7bc4\u56f2\u3092\u898b\u308b\u305f\u3081\u306b\u30ba\u30fc\u30e0\u30a2\u30a6\u30c8\u3057\u307e\u3059\u3002.<\/td>\n<\/tr>\n<tr>\n<td><strong>RBW<\/strong><\/td>\n<td>\u6e2c\u5b9a\u30d5\u30a3\u30eb\u30bf\u30fc\u306e\u300c\u7d30\u304b\u3055\u300d\u3002.<\/td>\n<td>\u3088\u308a\u826f\u3044\u4fe1\u53f7\u5206\u96e2\u3001\u3057\u304b\u3057\u30b9\u30a4\u30fc\u30d7\u901f\u5ea6\u306f\u9045\u304f\u306a\u308a\u307e\u3059\u3002.<\/td>\n<td>\u3088\u308a\u9ad8\u901f\u306a\u30b9\u30a4\u30fc\u30d7\u3001\u3057\u304b\u3057\u4fe1\u53f7\u5206\u96e2\u306f\u52a3\u308a\u307e\u3059\u3002.<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30ec\u30d9\u30eb<\/strong><\/td>\n<td>\u753b\u9762\u4e0a\u90e8\u306e\u96fb\u529b\u30ec\u30d9\u30eb\u3002.<\/td>\n<td>\u30c8\u30ec\u30fc\u30b9\u5168\u4f53\u304c\u753b\u9762\u4e0b\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002.<\/td>\n<td>\u30c8\u30ec\u30fc\u30b9\u5168\u4f53\u304c\u753b\u9762\u4e0a\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u3069\u306e\u3088\u3046\u306a\u4e00\u822c\u7684\u306a\u8ab2\u984c\u306b\u76f4\u9762\u3057\u3001\u3069\u306e\u3088\u3046\u306b\u514b\u670d\u3057\u307e\u3059\u304b\uff1f<\/h2>\n<p>\u3059\u3079\u3066\u8a2d\u5b9a\u3092\u5b8c\u4e86\u3057\u307e\u3057\u305f\u304c\u3001\u4fe1\u53f7\u304c\u5f31\u3044\u3001\u4e0d\u5b89\u5b9a\u3001\u307e\u305f\u306f\u4ed6\u306e\u4fe1\u53f7\u306b\u96a0\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u4e00\u822c\u7684\u3067\u30a4\u30e9\u30a4\u30e9\u3059\u308b\u554f\u984c\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u5f31\u3044\u4fe1\u53f7\u306e\u5834\u5408\u306f\u3001 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Low-noise_amplifier\" target=\"_blank\" rel=\"noopener noreferrer\">\u30ed\u30fc\u30ce\u30a4\u30ba\u5897\u5e45\u5668\uff08LNA\uff09<\/a><sup id=\"fnref-12\"><a href=\"#fn-12\" class=\"footnote-ref\">12<\/a><\/sup>. \u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e0d\u5b89\u5b9a\u306b\u30b8\u30e3\u30f3\u30d7\u3059\u308b\u4fe1\u53f7\u306b\u306f\u3001\u300c\u6700\u5927\u30db\u30fc\u30eb\u30c9\u300d\u6a5f\u80fd\u3092\u4f7f\u3063\u3066\u5168\u5e2f\u57df\u5e45\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002\u30ce\u30a4\u30ba\u304b\u3089\u4fe1\u53f7\u3092\u53d6\u308a\u51fa\u3059\u306b\u306f\u3001RBW\u3092\u4e0b\u3052\u3066\u30c8\u30ec\u30fc\u30b9\u5e73\u5747\u5316\u3092\u6709\u52b9\u306b\u3057\u3001\u8868\u793a\u3092\u6ed1\u3089\u304b\u306b\u3057\u307e\u3059\u3002.<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/safarimw.com\/wp-content\/uploads\/2026\/03\/fuzaxinhao.png\" alt=\"\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u306e\u8868\u793a\u306b\u5e72\u6e09\u304c\u3042\u308b\u8907\u96d1\u306aRF\u4fe1\u53f7\" title=\"RF\u4fe1\u53f7\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\"><\/p>\n<p>\u3059\u3079\u3066\u306eRF\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u7d4c\u9a13\u3057\u3066\u3044\u307e\u3059\u3002\u4fe1\u53f7\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u306f\u308f\u304b\u3063\u3066\u3044\u308b\u304c\u3001\u304d\u308c\u3044\u306b\u30ed\u30c3\u30af\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u30022.4GHz\u5e2f\u306f\u7279\u306b\u96e3\u3057\u3044\u3067\u3059\u3002\u3053\u308c\u306f\u5171\u6709\u30b9\u30da\u30fc\u30b9\u3060\u304b\u3089\u3067\u3059\u3002\u307e\u308b\u3067\u9a12\u304c\u3057\u3044\u6df7\u96d1\u3057\u305f\u90e8\u5c4b\u3067\u8ab0\u304b\u306e\u3055\u3055\u3084\u304d\u3092\u805e\u3053\u3046\u3068\u3059\u308b\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u826f\u3044\u30cb\u30e5\u30fc\u30b9\u306f\u3001\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u306b\u306f\u3053\u308c\u3089\u306e\u72b6\u6cc1\u306b\u5bfe\u5fdc\u3059\u308b\u7279\u6b8a\u306a\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u79c1\u306f\u3053\u308c\u3089\u306e\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u4f55\u6642\u9593\u3082\u8cbb\u3084\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u89e3\u6c7a\u7b56\u306f\u77e5\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u7406\u89e3\u3059\u308c\u3070\u975e\u5e38\u306b\u7c21\u5358\u3067\u3059\u3002.<\/p>\n<h3>\u4e00\u822c\u7684\u306a\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u7b56<\/h3>\n<p>\u6700\u3082\u983b\u7e41\u306b\u8d77\u3053\u308b3\u3064\u306e\u554f\u984c\u3068\u305d\u306e\u4fee\u6b63\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<ol>\n<li>\n<h3>\u554f\u984c\uff1a\u4fe1\u53f7\u304c\u5f31\u3059\u304e\u308b<\/h3>\n<p>\u6642\u306b\u306f\u4fe1\u53f7\u304c\u30a2\u30ca\u30e9\u30a4\u30b6\u306e\u30ce\u30a4\u30ba\u30d5\u30ed\u30a2\u4ee5\u4e0b\u306b\u306a\u308a\u3001\u898b\u3048\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u89e3\u6c7a\u7b56\u306f\u5897\u5e45\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u306f\u3001 <strong>\u30ed\u30fc\u30ce\u30a4\u30ba\u5897\u5e45\u5668\uff08LNA\uff09<\/strong> \u30a2\u30f3\u30c6\u30ca\u3068\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u306e\u9593\u306b\u633f\u5165\u3057\u307e\u3059\u3002LNA\u306f\u53d7\u4fe1\u3057\u305f\u3059\u3079\u3066\u306e\u4fe1\u53f7\u306e\u96fb\u529b\u3092\u5897\u5e45\u3057\u307e\u3059\u304c\u3001\u305d\u306e\u4e3b\u306a\u7279\u5fb4\u306f\u975e\u5e38\u306b\u5c11\u306a\u3044\u30ce\u30a4\u30ba\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Signal-to-noise_ratio\" target=\"_blank\" rel=\"noopener noreferrer\">\u4fe1\u53f7\u5bfe\u30ce\u30a4\u30ba\u6bd4<\/a><sup id=\"fnref-13\"><a href=\"#fn-13\" class=\"footnote-ref\">13<\/a><\/sup>, \u3042\u306a\u305f\u306e\u5f31\u3044\u4fe1\u53f7\u3092\u30ce\u30a4\u30ba\u30d5\u30ed\u30a2\u304b\u3089\u969b\u7acb\u305f\u305b\u307e\u3059\u3002\u5f53\u793e\u306f\u3053\u306e\u76ee\u7684\u306e\u305f\u3081\u306bLNA\u3092\u88fd\u9020\u3057\u3066\u304a\u308a\u3001\u5c02\u9580\u7684\u306a\u7528\u9014\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002 <a href=\"https:\/\/www.reddit.com\/r\/RTLSDR\/comments\/1hmbuxc\/signal_hunting_techniques\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b7\u30b0\u30ca\u30eb\u30cf\u30f3\u30c6\u30a3\u30f3\u30b0<\/a><sup id=\"fnref-14\"><a href=\"#fn-14\" class=\"footnote-ref\">14<\/a><\/sup>.<\/p>\n<\/li>\n<li>\n<h3>\u554f\u984c\uff1a\u4fe1\u53f7\u304c\u5468\u6ce2\u6570\u3092\u30b8\u30e3\u30f3\u30d7\u3057\u3066\u3044\u307e\u3059<\/h3>\n<p>\u4e00\u77ac\u3060\u3051\u8868\u793a\u3055\u308c\u3066\u3059\u3050\u306b\u6d88\u3048\u308b\u4fe1\u53f7\u3084\u3001\u3042\u3061\u3053\u3061\u306b\u98db\u3073\u56de\u3063\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u308b\u5834\u5408\u306f\u3001\u304a\u305d\u3089\u304f\u6b21\u306e\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Frequency-hopping_spread_spectrum\" target=\"_blank\" rel=\"noopener noreferrer\">\u5468\u6ce2\u6570\u30db\u30c3\u30d4\u30f3\u30b0\u62e1\u6563\u30b9\u30da\u30af\u30c8\u30eb\uff08FHSS\uff09<\/a><sup id=\"fnref-15\"><a href=\"#fn-15\" class=\"footnote-ref\">15<\/a><\/sup> \u30b7\u30b0\u30ca\u30eb\u3002Bluetooth\u306f\u3053\u308c\u306e\u5b8c\u74a7\u306a\u4f8b\u3067\u3059\u3002\u898b\u308b\u306b\u306f\u3001\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <strong>\"\u6700\u5927\u30db\u30fc\u30eb\u30c9\"<\/strong> \u3053\u306e\u95a2\u6570\u306f\u3001\u3042\u306a\u305f\u306e\u89e3\u6790\u5668\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u3001\u753b\u9762\u4e0a\u306e\u5404\u5468\u6ce2\u6570\u70b9\u3067\u6e2c\u5b9a\u3055\u308c\u305f\u6700\u9ad8\u96fb\u529b\u30ec\u30d9\u30eb\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002\u6570\u79d2\u9593\u306b\u308f\u305f\u308a\u3001\u4fe1\u53f7\u304c\u4f7f\u7528\u3057\u3066\u3044\u308b\u5168\u5468\u6ce2\u6570\u7bc4\u56f2\u306e\u300c\u7d75\u300d\u3092\u63cf\u304d\u51fa\u3057\u307e\u3059\u3002.<\/p>\n<\/li>\n<li>\n<h3>\u554f\u984c\uff1a\u5f37\u3044\u4fe1\u53f7\u304c\u3042\u306a\u305f\u306e\u5f31\u3044\u4fe1\u53f7\u3092\u96a0\u3057\u3066\u3044\u308b<\/h3>\n<p>\u4fe1\u53f7\u304c\u975e\u5e38\u306b\u5f37\u3044Wi-Fi\u30c1\u30e3\u30f3\u30cd\u30eb\u306e\u3059\u3050\u96a3\u306b\u3042\u308b\u5834\u5408\u306f\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\uff1f\u5f37\u3044\u4fe1\u53f7\u304c\u89e3\u6790\u5668\u3092\u5727\u5012\u3057\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u96a0\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3053\u308c\u3067\u3059\u3002 <strong>\u89e3\u50cf\u5ea6\u5e2f\u57df\u5e45\uff08RBW\uff09\u3092\u6e1b\u3089\u3057\u3066\u304f\u3060\u3055\u3044<\/strong>. \u3088\u308a\u5c0f\u3055\u306aRBW\u306f\u3001\u5206\u6790\u5668\u306e\u7126\u70b9\u3092\u7d5e\u308a\u3001\u975e\u5e38\u306b\u8fd1\u63a5\u3057\u305f2\u3064\u306e\u4fe1\u53f7\u3092\u533a\u5225\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u6b21\u306e\u3088\u3046\u306b\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002 <strong>\u30c8\u30ec\u30fc\u30b9\u5e73\u5747\u5316<\/strong>, \u8907\u6570\u306e\u30b9\u30a4\u30fc\u30d7\u3092\u5e73\u5747\u5316\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u30ce\u30a4\u30ba\u3092\u9664\u53bb\u3057\u3001\u3042\u306a\u305f\u306e\u3088\u3046\u306a\u5b89\u5b9a\u3057\u305f\u4fe1\u53f7\u3092\u660e\u78ba\u3067\u5b89\u5b9a\u3057\u305f\u72b6\u614b\u306b\u4fdd\u3061\u307e\u3059\u3002.<\/p>\n<\/li>\n<\/ol>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b <a href=\"https:\/\/www.centurylink.com\/home\/help\/internet\/wireless\/which-frequency-should-you-use.html\" target=\"_blank\" rel=\"noopener noreferrer\">2.4GHz<\/a><sup id=\"fnref-1\"><a href=\"#fn-1\" class=\"footnote-ref\">1<\/a><\/sup> \u30b7\u30b0\u30ca\u30eb\u306f\u3001\u9069\u5207\u306a\u30c4\u30fc\u30eb\u3092\u6301\u3061\u3001RBW\u306a\u3069\u306e\u91cd\u8981\u306a\u8a2d\u5b9a\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3001\u4e00\u822c\u7684\u306a\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u65b9\u6cd5\u3092\u77e5\u308b\u3053\u3068\u306b\u95a2\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u5b9f\u7528\u7684\u306a\u30ac\u30a4\u30c9\u304c\u3042\u306a\u305f\u306e\u6210\u529f\u306b\u5f79\u7acb\u3064\u3053\u3068\u3092\u9858\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n<hr><div class=\"footnotes\"><hr><ol><li id=\"fn-1\"><p>2.4GHz\u5e2f\u306e\u3055\u307e\u3056\u307e\u306a\u7528\u9014\u3092\u63a2\u6c42\u3057\u3066\u3001\u77e5\u8b58\u3092\u6df1\u3081\u307e\u3057\u3087\u3046\u3002.\r <a href=\"#fnref-1\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-2\"><p>\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u52b9\u679c\u7684\u306aRF\u4fe1\u53f7\u89e3\u6790\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002.\r <a href=\"#fnref-2\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-3\"><p>RBW\u304c\u4fe1\u53f7\u306e\u9bae\u660e\u3055\u3068\u6e2c\u5b9a\u7cbe\u5ea6\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002.\r <a href=\"#fnref-3\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-4\"><p>RF\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u7406\u89e3\u306f\u3001\u52b9\u679c\u7684\u306a\u4fe1\u53f7\u30cf\u30f3\u30c6\u30a3\u30f3\u30b0\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.\r <a href=\"#fnref-4\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-5\"><p>\u4fe1\u53f7\u5f37\u5ea6\u6e2c\u5b9a\u306e\u7406\u89e3\u306f\u3001\u52b9\u679c\u7684\u306a\u5206\u6790\u306e\u9375\u3067\u3059\u3002.\r <a href=\"#fnref-5\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-6\"><p>\u30b2\u30a4\u30f3\u306e\u7406\u89e3\u306f\u3001\u30cb\u30fc\u30ba\u306b\u5408\u3063\u305f\u9069\u5207\u306a\u30a2\u30f3\u30c6\u30ca\u3092\u9078\u629e\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002.\r <a href=\"#fnref-6\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-7\"><p>RF\u89e3\u6790\u3092\u5b66\u3076\u305f\u3081\u306e\u4e88\u7b97\u306b\u512a\u3057\u3044\u9078\u629e\u80a2\u3068\u3057\u3066\u306eSDR\u3092\u63a2\u7d22\u3057\u307e\u3057\u3087\u3046\u3002.\r <a href=\"#fnref-7\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-8\"><p>\u672c\u683c\u7684\u306a\u4f5c\u696d\u306b\u9069\u3057\u305f\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u30b0\u30ec\u30fc\u30c9\u306e\u30a2\u30ca\u30e9\u30a4\u30b6\u306e\u5229\u70b9\u3092\u767a\u898b\u3057\u307e\u3057\u3087\u3046\u3002.\r <a href=\"#fnref-8\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-9\"><p>\u6307\u5411\u6027\u30a2\u30f3\u30c6\u30ca\u306e\u7406\u89e3\u306f\u3001\u4fe1\u53f7\u306e\u63a2\u7d22\u80fd\u529b\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.\r <a href=\"#fnref-9\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-10\"><p>\u4fe1\u53f7\u640d\u5931\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u306b\u9069\u5207\u306a\u540c\u8ef8\u30b1\u30fc\u30d6\u30eb\u3092\u9078\u3076\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002.\r <a href=\"#fnref-10\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-11\"><p>\u7121\u7dda\u901a\u4fe1\u306b\u304a\u3051\u308bISM\u30d0\u30f3\u30c9\u306e\u91cd\u8981\u6027\u3092\u63a2\u6c42\u3057\u307e\u3057\u3087\u3046\u3002.\r <a href=\"#fnref-11\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-12\"><p>LNA\uff08\u4f4e\u96d1\u97f3\u5897\u5e45\u5668\uff09\u304c\u5f31\u3044\u4fe1\u53f7\u306e\u691c\u51fa\u3092\u5927\u5e45\u306b\u6539\u5584\u3059\u308b\u65b9\u6cd5\u3092\u767a\u898b\u3057\u307e\u3057\u3087\u3046\u3002.\r <a href=\"#fnref-12\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-13\"><p>SNR\uff08\u4fe1\u53f7\u5bfe\u96d1\u97f3\u6bd4\uff09\u306e\u7406\u89e3\u306f\u3001\u52b9\u679c\u7684\u306a\u4fe1\u53f7\u89e3\u6790\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.\r <a href=\"#fnref-13\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-14\"><p>\u3055\u307e\u3056\u307e\u306a\u6280\u8853\u3092\u63a2\u7d22\u3057\u3066\u3001\u4fe1\u53f7\u63a2\u7d22\u30b9\u30ad\u30eb\u3092\u5411\u4e0a\u3055\u305b\u307e\u3057\u3087\u3046\u3002.\r <a href=\"#fnref-14\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><li id=\"fn-15\"><p>FHSS\uff08\u5468\u6ce2\u6570\u30db\u30c3\u30d4\u30f3\u30b0\u62e1\u6563\u30b9\u30da\u30af\u30c8\u30e9\u30e0\uff09\u306b\u3064\u3044\u3066\u5b66\u3073\u3001\u7279\u5b9a\u306eRF\u4fe1\u53f7\u306e\u6319\u52d5\u3092\u3088\u308a\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002.\r <a href=\"#fnref-15\" class=\"footnote-backref\">\u21a9<\/a><\/p><\/li><\/ol><\/div>","protected":false},"excerpt":{"rendered":"<p>Struggling to find a signal in the noisy 2.4GHz band? With so much interference from Wi-Fi and Bluetooth, isolating your target can feel impossible. I will guide you through it. To find a 2.4GHz1 signal&#8217;s exact frequency, use a spectrum analyzer2. Set the center frequency to 2.45GHz with a 100MHz span. Lower the Resolution Bandwidth (RBW)3 to isolate signals and use a marker to measure the frequency of the highest peak on the display. I often get questions like this from customers. Even though my company focuses on manufacturing RF components4, our engineers are also users in the field. We have faced these same challenges ourselves, and we enjoy sharing [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-12007","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/posts\/12007","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/comments?post=12007"}],"version-history":[{"count":7,"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/posts\/12007\/revisions"}],"predecessor-version":[{"id":12793,"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/posts\/12007\/revisions\/12793"}],"wp:attachment":[{"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/media?parent=12007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/categories?post=12007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/safarimw.com\/ja\/wp-json\/wp\/v2\/tags?post=12007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}