{"id":491,"date":"2025-11-14T18:23:57","date_gmt":"2025-11-14T10:23:57","guid":{"rendered":"http:\/\/103.236.53.242\/?p=491"},"modified":"2025-11-27T15:21:57","modified_gmt":"2025-11-27T07:21:57","slug":"get-ham-a3","status":"publish","type":"post","link":"http:\/\/www.preluna.xyz\/index.php\/2025\/11\/14\/get-ham-a3\/preluna\/technology\/career-skills\/technology-horizon\/","title":{"rendered":"\u65e0\u7ebf\u7535\u8003\u8bd5A\u8bc1\u8003\u8bd5\u6307\u5357\uff083\uff09"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">NB\u548cSQL<\/h2>\n\n\n\n<p>\u5b83\u4eec\u7684\u8bbe\u8ba1\u76ee\u7684\u548c\u5de5\u4f5c\u539f\u7406\u5b8c\u5168\u4e0d\u540c\u3002\u7b80\u5355\u6765\u8bf4\uff0cSQL\u4e3b\u8981\u7528\u4e8e\u63a7\u5236\u4f55\u65f6\u6253\u5f00\u97f3\u9891\u8f93\u51fa\u4ee5\u4fbf\u542c\u5230\u4fe1\u53f7\uff0c\u800cNB\u5219\u7528\u4e8e\u6539\u5584\u5df2\u7ecf\u6536\u5230\u7684\u4fe1\u53f7\u8d28\u91cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>SQL (\u9759\u566a\u63a7\u5236)<\/th><th>NB (\u566a\u58f0\u6291\u5236\u5668)<\/th><\/tr><\/thead><tbody><tr><td>\u6838\u5fc3\u529f\u80fd<\/td><td>\u63a7\u5236\u626c\u58f0\u5668\u7684\u97f3\u9891\u5f00\u5173<\/td><td>\u6291\u5236\u7279\u5b9a\u7684\u8109\u51b2\u566a\u58f0<\/td><\/tr><tr><td>\u8981\u89e3\u51b3\u7684\u95ee\u9898<\/td><td>\u65e0\u4fe1\u53f7\u65f6\u7684\u80cc\u666f\u7a33\u6001\u566a\u58f0<\/td><td>\u6709\u4fe1\u53f7\u65f6\u7684\u8109\u51b2\u566a\u58f0\u5e72\u6270\uff08\u5982\u7535\u706b\u82b1\uff09<\/td><\/tr><tr><td>\u5de5\u4f5c\u673a\u5236<\/td><td>\u8bbe\u5b9a\u4e00\u4e2a\u4fe1\u53f7\u5f3a\u5ea6\u9608\u503c\uff0c\u53ea\u6709\u9ad8\u4e8e\u6b64\u9608\u503c\u65f6\u624d\u6253\u5f00\u97f3\u9891\u8f93\u51fa<\/td><td>\u68c0\u6d4b\u5e76\u5c1d\u8bd5\u6d88\u9664\u4fe1\u53f7\u4e2d\u7a81\u7136\u7684\u5e45\u5ea6\u5c16\u5cf0<\/td><\/tr><tr><td>\u8c03\u8282\u6548\u679c<\/td><td>\u51b3\u5b9a\u80fd\u201c\u542c\u5230\u201d\u4ec0\u4e48<\/td><td>\u51b3\u5b9a\u542c\u5230\u7684\u58f0\u97f3\u201c\u8d28\u91cf\u201d\u5982\u4f55<\/td><\/tr><tr><td>\u529f\u80fd\u56fe\u6807<\/td><td>\u901a\u5e38\u662f\u4e00\u4e2a\u8bdd\u7b52\u52a0\u4e0a\u659c\u7ebf\u6216Squelch\u5b57\u6837<\/td><td>\u901a\u5e38\u76f4\u63a5\u6807\u6ce8\u4e3aNB\u6216Noise Blanker<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>SQL\uff08\u9759\u566a\u63a7\u5236\uff09\u7684\u8c03\u8282\uff1a\u8fd9\u662f\u4e00\u4e2a\u201c\u95e8\u69db\u201d\u6982\u5ff5\u3002\u6b63\u786e\u7684\u8c03\u8282\u65b9\u6cd5\u662f\uff0c\u5148\u5c06SQL\u65cb\u94ae\u9006\u65f6\u9488\u65cb\u5230\u5e95\uff08\u5173\u95ed\u9759\u566a\uff09\uff0c\u8fd9\u65f6\u4f60\u4f1a\u542c\u5230\u6301\u7eed\u7684\u767d\u566a\u58f0\u3002\u7136\u540e\uff0c\u7f13\u6162\u987a\u65f6\u9488\u65cb\u8f6c\u65cb\u94ae\uff0c\u76f4\u5230\u80cc\u666f\u566a\u58f0\u521a\u597d\u6d88\u5931\u4e3a\u6b62\u3002\u8fd9\u4e2a\u4f4d\u7f6e\u5c31\u662f\u6700\u4f73\u9608\u503c\u3002\u5982\u679c\u65cb\u5f97\u8fc7\u5927\uff0c\u4e00\u4e9b\u8f83\u5f31\u7684\u6709\u6548\u4fe1\u53f7\u4e5f\u4f1a\u88ab\u9759\u566a\u529f\u80fd\u8fc7\u6ee4\u6389\uff0c\u5bfc\u81f4\u4f60\u65e0\u6cd5\u542c\u5230\u3002<\/p>\n\n\n\n<p>NB\uff08\u566a\u58f0\u6291\u5236\u5668\uff09\u7684\u8c03\u8282\uff1aNB\u901a\u5e38\u662f\u4e00\u4e2a\u5f00\u5173\uff0c\u6216\u5728\u5f00\u542f\u540e\u6709\u4e00\u4e2a\u5f3a\u5ea6\u8c03\u8282\u3002\u5f53\u4f60\u542c\u5230\u901a\u4fe1\u4e2d\u5939\u6742\u7740\u89c4\u5f8b\u7684\u201c\u5494\u54d2\u201d\u58f0\u6216\u7206\u88c2\u58f0\u65f6\uff08\u4f8b\u5982\u6c7d\u8f66\u70b9\u706b\u5e72\u6270\uff09\uff0c\u5c31\u53ef\u4ee5\u6253\u5f00NB\u3002\u4f60\u4f1a\u53d1\u73b0\u90a3\u4e9b\u5c16\u9510\u7684\u8109\u51b2\u566a\u58f0\u88ab\u660e\u663e\u524a\u5f31\uff0c\u4ece\u800c\u4f7f\u8bed\u97f3\u4fe1\u53f7\u53d8\u5f97\u6e05\u6670\u3001\u53ef\u61c2\u3002\u5b83\u5bf9\u4e8e\u5904\u7406\u5185\u71c3\u673a\u70b9\u706b\u3001\u7535\u52a8\u9a6c\u8fbe\u7535\u5237\u4ea7\u751f\u7684\u706b\u82b1\u7b49\u5e72\u6270\u7279\u522b\u6709\u6548\u3002<\/p>\n\n\n\n<p>\u5148\u7528SQL\u8ba9\u73af\u5883\u5b89\u9759\u4e0b\u6765\uff0c\u518d\u7528NB\u6765\u51c0\u5316\u4fe1\u53f7\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5feb\u901f\u8ba4\u8bc6AGC<\/h3>\n\n\n\n<p>AGC\uff08\u81ea\u52a8\u589e\u76ca\u63a7\u5236\uff09 \u7684\u6838\u5fc3\u4efb\u52a1\uff0c\u662f\u50cf\u4e00\u4e2a\u667a\u80fd\u97f3\u91cf\u7ba1\u7406\u5458\uff0c\u81ea\u52a8\u8c03\u6574\u63a5\u6536\u673a\u7684\u589e\u76ca\uff08\u653e\u5927\u500d\u6570\uff09\uff0c\u4f7f\u5176\u5728\u4fe1\u53f7\u5f3a\u5ea6\u5267\u70c8\u53d8\u5316\u65f6\uff0c\u80fd\u5c3d\u529b\u63d0\u4f9b\u4e00\u4e2a\u76f8\u5bf9\u7a33\u5b9a\u7684\u8f93\u51fa\u97f3\u91cf\u3002<strong>\u5de5\u4f5c\u903b\u8f91\u901a\u5e38\u662f\uff1a<\/strong><em>\u5f31\u4fe1\u53f7\u6765\u65f6\uff1a<\/em>\u81ea\u52a8\u63d0\u9ad8\u589e\u76ca\uff0c\u8ba9\u4f60\u80fd\u542c\u6e05\u7ec6\u5fae\u7684\u58f0\u97f3\u3002<em>\u5f3a\u4fe1\u53f7\u6765\u65f6\uff1a<\/em>\u81ea\u52a8\u964d\u4f4e\u589e\u76ca\uff0c\u907f\u514d\u58f0\u97f3\u8fc7\u5927\u751a\u81f3\u5931\u771f\u3002<strong>\u7136\u800c\uff0c\u706b\u82b1\u585e\u4ea7\u751f\u7684\u8109\u51b2\u5e72\u6270\u901a\u5e38\u975e\u5e38\u5f3a\u5927\u4e14\u8fc5\u901f\u3002<\/strong>\u8fd9\u79cd\u7a81\u5982\u5176\u6765\u7684\u201c\u5de8\u54cd\u201d\u4f1a\u8ba9AGC\u7cfb\u7edf\u8bef\u4ee5\u4e3a\u6709\u8d85\u5f3a\u4fe1\u53f7\u5230\u6765\uff0c\u4ece\u800c\u8fc7\u65e9\u5730\u3001\u8fc7\u5ea6\u5730\u8c03\u4f4e\u589e\u76ca\u3002\u7ed3\u679c\u5c31\u662f\uff0c\u4f60\u6b63\u5728\u52aa\u529b\u8fa8\u542c\u7684\u90a3\u4e2a\u5fae\u5f31SSB\uff08\u5355\u8fb9\u5e26\uff09\u8bdd\u97f3\u6216CW\uff08\u7b49\u5e45\u62a5\uff09\u4fe1\u53f7\uff0c\u4f1a\u968f\u7740\u589e\u76ca\u7684\u9aa4\u964d\u800c\u88ab\u201c\u538b\u5236\u201d\u751a\u81f3\u77ed\u6682\u201c\u6d88\u5931\u201d\uff0c\u4e25\u91cd\u5f71\u54cd\u6284\u6536\u3002\u5f53\u906d\u9047\u8fd9\u79cd\u8109\u51b2\u5e72\u6270\u65f6\uff0c\u53ef\u901a\u8fc7\u8c03\u6574\u7535\u53f0\u8bbe\u7f6e\u6765 mitigating\uff08\u51cf\u8f7b\uff09\u5176\u5f71\u54cd\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8bbe\u7f6e\u7b56\u7565<\/th><th>\u64cd\u4f5c\u8981\u70b9<\/th><th>\u4e3b\u8981\u76ee\u7684<\/th><\/tr><\/thead><tbody><tr><td>\u8c03\u6574AGC\u6a21\u5f0f<\/td><td>\u4ece\u5feb\uff08Fast\uff09\u5207\u6362\u81f3\u4e2d\uff08Med\uff09\u6216\u6162\uff08Slow\uff09\uff0c\u6216\u76f4\u63a5\u5173\u95ed\uff08Off\uff09<\/td><td>\u964d\u4f4eAGC\u5bf9\u5feb\u901f\u5e72\u6270\u8109\u51b2\u7684\u54cd\u5e94\u901f\u5ea6\uff0c\u907f\u514d\u589e\u76ca\u88ab\u77ac\u95f4\u538b\u5236<\/td><\/tr><tr><td>\u542f\u7528\u524d\u7f6e\u8870\u51cf\u5668<\/td><td>\u5f00\u542fATT\uff08\u901a\u5e38\u6709-10dB, -20dB\u7b49\u6863\u4f4d\uff09<\/td><td>\u5728\u4fe1\u53f7\u8fdb\u5165\u5c04\u9891\u653e\u5927\u524d\u7aef\u524d\uff0c\u7b49\u6bd4\u4f8b\u8870\u51cf\u5305\u62ec\u5e72\u6270\u5728\u5185\u7684\u6240\u6709\u4fe1\u53f7\uff0c\u9632\u6b62\u653e\u5927\u5668\u8fc7\u8f7d<\/td><\/tr><tr><td>\u7cbe\u7ec6\u8c03\u6574RF\u589e\u76ca<\/td><td>\u9002\u5f53\u624b\u52a8\u964d\u4f4eRF Gain\uff08\u5c04\u9891\u589e\u76ca\uff09<\/td><td>\u4e3b\u52a8\u63a7\u5236\u4fe1\u53f7\u653e\u5927\u91cf\uff0c\u5728\u53ef\u542c\u5ea6\u548c\u4fe1\u566a\u6bd4\u4e4b\u95f4\u5bfb\u627e\u6700\u4f73\u5e73\u8861\u70b9<\/td><\/tr><tr><td>\u5229\u7528\u6ee4\u6ce2\u5668<\/td><td>\u4f7f\u7528\u6700\u7a84\u5e26\u5bbd\uff08\u5982CW\u6a21\u5f0f\u7528500Hz\u6216250Hz\uff09\uff0c\u5e76\u8c03\u6574\u4e2d\u9891\u6ee4\u6ce2\u5668\u7684\u4e2d\u5fc3\u9891\u7387<\/td><td>\u5c3d\u53ef\u80fd\u5c06\u5e72\u6270\u8109\u51b2\u7684\u5bbd\u9891\u8c31\u6210\u5206\u201c\u6321\u5728\u95e8\u5916\u201d\uff0c\u7a81\u51fa\u6709\u7528\u4fe1\u53f7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u9664\u4e86\u4e0a\u8ff0\u9488\u5bf9\u63a5\u6536\u673a\u7684\u8bbe\u7f6e\uff0c\u8fd8\u53ef\u4ee5\u8003\u8651\uff1a\u68c0\u67e5\u5e76\u6539\u5584\u7535\u53f0\u7684\u4f9b\u7535\u4e0e\u63a5\u5730\uff1a\u826f\u597d\u7684\u63a5\u5730\u548c\u7a33\u5b9a\u7684\u7535\u6e90\u6709\u52a9\u4e8e\u51cf\u5c11\u901a\u8fc7\u7535\u6e90\u7ebf\u5f15\u5165\u7684\u566a\u58f0\u3002\u4f7f\u7528\u5916\u7f6e\u964d\u566a\u8bbe\u5907\uff1a\u4e00\u4e9b\u73b0\u4ee3\u7535\u53f0\u6216\u5916\u7f6eDSP\uff08\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u5668\uff09\u8bbe\u5907\u5e26\u6709\u66f4\u5148\u8fdb\u7684\u964d\u566a\u529f\u80fd\uff08\u5982\u566a\u58f0\u6291\u5236\u6216DSP\u964d\u566a\uff09\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u5f00\u542f\uff0c\u5bf9\u6d88\u9664\u67d0\u4e9b\u89c4\u5f8b\u7684\u8109\u51b2\u566a\u58f0\u6709\u4e0d\u9519\u6548\u679c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">MODE\u3001ATT\u3001AGC\u7684\u57fa\u672c\u5b9a\u4e49\u548c\u529f\u80fd\u3002<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u529f\u80fd\u7f29\u5199<\/th><th>\u82f1\u6587\u5168\u79f0<\/th><th>\u6838\u5fc3\u529f\u80fd<\/th><th>\u8981\u89e3\u51b3\u7684\u5178\u578b\u95ee\u9898<\/th><\/tr><\/thead><tbody><tr><td>MODE<\/td><td>Mode<\/td><td>\u9009\u62e9\u901a\u4fe1\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u5982\u5355\u8fb9\u5e26\uff08SSB\uff09\u3001\u7b49\u5e45\u62a5\uff08CW\uff09\u3001\u8c03\u5e45\uff08AM\uff09\u3001\u8c03\u9891\uff08FM\uff09\u7b49<\/td><td>\u6839\u636e\u4e0d\u540c\u901a\u4fe1\u9700\u6c42\uff08\u5982\u8bed\u97f3\u901a\u8bdd\u3001\u6469\u5c14\u65af\u7535\u7801\u3001\u542c\u5e7f\u64ad\uff09\u9009\u62e9\u5bf9\u5e94\u7684\u4fe1\u53f7\u8c03\u5236\u548c\u89e3\u8c03\u65b9\u5f0f<\/td><\/tr><tr><td>ATT<\/td><td>Attenuator<\/td><td>\u5c04\u9891\u8870\u51cf\u5668\uff0c\u5728\u4fe1\u53f7\u8fdb\u5165\u63a5\u6536\u673a\u524d\u7aef\u65f6\uff0c\u4e3b\u52a8\u3001\u56fa\u5b9a\u5730\u964d\u4f4e\u4fe1\u53f7\u5f3a\u5ea6<\/td><td>\u63a5\u6536\u673a\u56e0\u8fc7\u5f3a\u7684\u4fe1\u53f7\uff08\u5373\u4f7f\u662f\u5f31\u4fe1\u53f7\u4f46\u8bbe\u5907\u975e\u5e38\u7075\u654f\u65f6\u4e5f\u53ef\u80fd\uff09\u800c\u53d1\u751f\u8fc7\u8f7d\u3001\u963b\u585e\u3001\u4ea7\u751f\u6742\u54cd<\/td><\/tr><tr><td>AGC<\/td><td>Automatic Gain Control<\/td><td>\u81ea\u52a8\u589e\u76ca\u63a7\u5236\uff0c\u6839\u636e\u63a5\u6536\u5230\u7684\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u81ea\u52a8\u3001\u5b9e\u65f6\u5730\u8c03\u6574\u63a5\u6536\u673a\u7684\u4e2d\u9891\/\u97f3\u9891\u589e\u76ca<\/td><td>\u907f\u514d\u56e0\u4fe1\u53f7\u5f3a\u5ea6\u5267\u70c8\u6ce2\u52a8\uff08\u5982\u8870\u843d\u73b0\u8c61\u3001\u5bf9\u65b9\u8bed\u97f3\u5f3a\u5f31\u53d8\u5316\uff09\u5bfc\u81f4\u7684\u97f3\u91cf\u5ffd\u5927\u5ffd\u5c0f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>MODE\uff08\u6a21\u5f0f\u9009\u62e9\uff09\uff1a\u8fd9\u4e2a\u6309\u952e\u662f\u4f60\u4e0e\u4e0d\u540c\u201c\u901a\u4fe1\u534f\u8bae\u201d\u4e4b\u95f4\u7684\u6865\u6881\u3002\u9009\u62e9LSB\/USB\u4e3b\u8981\u7528\u4e8e\u6e05\u6670\u7684\u8bed\u97f3\u901a\u4fe1\uff0cCW\u7528\u4e8e\u6469\u5c14\u65af\u7535\u7801\uff0cAM\u7528\u4e8e\u6536\u542c\u5e7f\u64ad\uff0cFM\u5219\u5e38\u7528\u4e8eVHF\/UHF\u6bb5\u7684\u8bed\u97f3\u901a\u4fe1\u3002\u4e0d\u540c\u7684\u6a21\u5f0f\u5bf9\u5e94\u7740\u4e0d\u540c\u7684\u4fe1\u53f7\u5e26\u5bbd\u548c\u8c03\u5236\u89e3\u8c03\u65b9\u6cd5\uff0c\u662f\u901a\u4fe1\u7684\u57fa\u7840\u3002<\/p>\n\n\n\n<p>ATT\uff08\u8870\u51cf\u5668\uff09\u4e0eAGC\uff08\u81ea\u52a8\u589e\u76ca\u63a7\u5236\uff09\u7684\u5173\u7cfb\uff1a\u8fd9\u662f\u7406\u89e3\u63a5\u6536\u673a\u5904\u7406\u5f3a\u4fe1\u53f7\u903b\u8f91\u7684\u5173\u952e\u3002\u4f60\u53ef\u4ee5\u628a\u63a5\u6536\u4fe1\u53f7\u7684\u8fc7\u7a0b\u60f3\u8c61\u6210\u8c03\u8282\u6c34\u6d41\uff1aATT\u5c31\u50cf\u4e00\u4e2a\u603b\u6c34\u95f8\uff0c\u5f53\u6d2a\u6c34\uff08\u6781\u5f3a\u4fe1\u53f7\uff09\u6765\u4e34\u65f6\uff0c\u76f4\u63a5\u5173\u5c0f\u6c34\u95f8\uff0c\u7b49\u6bd4\u4f8b\u5730\u51cf\u5f31\u6240\u6709\u8fdb\u6c34\u91cf\uff0c\u9632\u6b62\u7ba1\u9053\u88ab\u51b2\u57ae\u3002\u800cAGC\u5219\u66f4\u50cf\u4e00\u4e2a\u5b89\u88c5\u5728\u5c4b\u5185\u7684\u81ea\u52a8\u8c03\u8282\u6c34\u9f99\u5934\uff0c\u5b83\u4f1a\u5728\u51fa\u6c34\u53e3\uff08\u626c\u58f0\u5668\uff09\u6839\u636e\u4f60\u7684\u9700\u8981\uff0c\u52aa\u529b\u7ef4\u6301\u51fa\u6c34\u6d41\u91cf\uff08\u97f3\u91cf\uff09\u7684\u7a33\u5b9a\u3002<\/p>\n\n\n\n<p>\u4e4b\u6240\u4ee5\u65e2\u8981\u6709\u201c\u603b\u6c34\u95f8\u201d\uff08ATT\uff09\uff0c\u53c8\u8981\u6709\u201c\u81ea\u52a8\u6c34\u9f99\u5934\u201d\uff08AGC\uff09\uff0c\u662f\u57fa\u4e8e\u4e00\u4e2a\u6838\u5fc3\u7684\u8bbe\u8ba1\u601d\u60f3\uff1a\u5206\u7ea7\u5904\u7406\uff0c\u5404\u53f8\u5176\u804c\u3002<strong>ATT\u8d1f\u8d23\u524d\u7aef\u4fdd\u62a4\uff1a<\/strong>\u5b83\u7684\u4f5c\u7528\u662f\u5e94\u5bf9\u4fe1\u53f7\u5f3a\u5ea6\u7edd\u5bf9\u503c\u8fc7\u9ad8\u7684\u60c5\u51b5\u3002\u5f53\u4e00\u4e2a\u975e\u5e38\u5f3a\u7684\u4fe1\u53f7\uff08\u6bd4\u5982\u9644\u8fd1\u7684\u5927\u529f\u7387\u7535\u53f0\uff09\u8fdb\u5165\u63a5\u6536\u673a\u65f6\uff0c\u4f1a\u4f7f\u5f97\u6700\u521d\u7ea7\u7684\u5c04\u9891\u653e\u5927\u5668\u6216\u6df7\u9891\u5668\u9971\u548c\uff0c\u4ea7\u751f\u5931\u771f\uff0c\u751a\u81f3\u4f1a\u201c\u6c61\u67d3\u201d\u6574\u4e2a\u63a5\u6536\u9891\u6bb5\uff0c\u542c\u5230\u5f88\u591a\u4e0d\u8be5\u6709\u7684\u5e72\u6270\u58f0\u3002\u6b64\u65f6\uff0c<strong>\u542f\u7528ATT\uff0c\u76f4\u63a5\u4ece\u6e90\u5934\u964d\u4f4e\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u662f\u4fdd\u62a4\u63a5\u6536\u673a\u524d\u7aef\u3001<\/strong>\u4fdd\u8bc1\u5176\u6b63\u5e38\u5de5\u4f5c\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002<strong>AGC\u8d1f\u8d23\u540e\u7aef\u7a33\u5e45\uff1a\u5b83\u7684\u4f5c\u7528\u662f\u5904\u7406\u4fe1\u53f7\u5f3a\u5ea6\u7684\u76f8\u5bf9\u53d8\u5316\u3002<\/strong>\u5728\u901a\u4fe1\u4e2d\uff0c\u5373\u4f7f\u4fe1\u53f7\u6574\u4f53\u5f3a\u5ea6\u9002\u4e2d\uff0c\u4e5f\u4f1a\u56e0\u4e3a\u4f20\u64ad\u8ddd\u79bb\u53d8\u5316\u7b49\u539f\u56e0\u4ea7\u751f\u8870\u843d\uff0c\u5bfc\u81f4\u97f3\u91cf\u8d77\u4f0f\u3002<strong>AGC\u901a\u8fc7\u5feb\u901f\u8c03\u6574\u4e2d\u9891\u6216\u97f3\u9891\u653e\u5927\u5668\u7684\u589e\u76ca\uff0c<\/strong>\u6765\u5e73\u6ed1\u8fd9\u79cd\u6ce2\u52a8\uff0c\u4e3a\u4f60\u63d0\u4f9b\u7a33\u5b9a\u8212\u9002\u7684\u542c\u89c9\u4f53\u9a8c\u3002\u7b80\u5355\u6765\u8bf4\uff0c<strong>ATT\u89e3\u51b3\u7684\u662f\u201c\u80fd\u4e0d\u80fd\u6b63\u5e38\u6536\u201d\u7684\u95ee\u9898\uff0c\u800cAGC\u89e3\u51b3\u7684\u662f\u201c\u80fd\u4e0d\u80fd\u542c\u5f97\u6e05\u3001\u542c\u5f97\u8212\u670d\u201d\u7684\u95ee\u9898\u3002<\/strong>\u5f53\u5f3a\u4fe1\u53f7\u5bfc\u81f4\u63a5\u6536\u673a\u524d\u7aef\u8fc7\u8f7d\u65f6\uff0c<strong><em>\u9996\u5148\u8981\u542f\u7528ATT\u6765\u201c\u4fdd\u547d\u201d\uff1b\u5728\u63a5\u6536\u673a\u5de5\u4f5c\u6b63\u5e38\u540e\uff0c\u518d\u4f9d\u9760AGC\u6765\u201c\u4f18\u5316\u201d\u542c\u89c9\u4f53\u9a8c\u3002<\/em><\/strong><\/p>\n\n\n\n<p>\u5728\u5b9e\u9645\u64cd\u4f5c\u4e2d\uff0c\u4e00\u4e2a\u5178\u578b\u7684\u5e94\u5bf9\u5f3a\u4fe1\u53f7\u7684\u601d\u8def\u662f\uff1a1.\u5f53\u542c\u5230\u4e25\u91cd\u5931\u771f\u6216\u6574\u4e2a\u6ce2\u6bb5\u5145\u6ee1\u566a\u97f3\u65f6\uff0c\u9996\u5148\u5c1d\u8bd5\u5f00\u542fATT\uff08\u901a\u5e38\u670910dB\u621620dB\u6863\u4f4d\uff09\u30022.\u5982\u679c\u5931\u771f\u6d88\u5931\u4f46\u4fe1\u53f7\u4ecd\u4e0d\u7a33\u5b9a\uff08\u97f3\u91cf\u5ffd\u5927\u5ffd\u5c0f\uff09\uff0c\u5219\u786e\u4fddAGC\u5904\u4e8e\u5f00\u542f\u72b6\u6001\uff08\u901a\u5e38\u6709\u5feb\u3001\u4e2d\u3001\u6162\u7b49\u6a21\u5f0f\u4ee5\u9002\u5e94\u4e0d\u540c\u901a\u4fe1\u6a21\u5f0f\uff09\u30023.\u5982\u679c\u5f00\u542fATT\u540e\u6709\u7528\u4fe1\u53f7\u4e5f\u53d8\u5f97\u592a\u5f31\u96be\u4ee5\u542c\u6e05\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u5728\u5f00\u542fATT\u7684\u60c5\u51b5\u4e0b\uff0c\u7a0d\u5fae\u589e\u5927\u5c04\u9891\u589e\u76ca\uff08RF Gain\uff09\uff0c\u6216\u8005\u5bfb\u627e\u4e00\u4e2a\u4fe1\u53f7\u5f3a\u5ea6\u4e0e\u5931\u771f\u7a0b\u5ea6\u53ef\u63a5\u53d7\u7684\u5e73\u8861\u70b9\u3002<\/p>\n\n\n\n<p>\u5408\u7406\u8bbe\u7f6e\u63a5\u6536\u673a\u7684\u81ea\u52a8\u589e\u76ca\u63a7\u5236\uff08AGC\uff09\u529f\u80fd\u53ca\u5176\u65f6\u95f4\u5e38\u6570\uff0c\u5bf9\u4fdd\u8bc1\u901a\u4fe1\u8d28\u91cf\u975e\u5e38\u91cd\u8981\u3002\u4e0b\u9762\u8fd9\u4e2a\u8868\u683c\u6c47\u603b\u4e86\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u6838\u5fc3\u8bbe\u7f6e\u601d\u8def\uff0c\u65b9\u4fbf\u4f60\u5feb\u901f\u6293\u4f4f\u8981\u70b9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u573a\u666f\u7279\u5f81<\/th><th>\u63a8\u8350\u64cd\u4f5c (AGC\u529f\u80fd)<\/th><th>\u63a8\u8350\u64cd\u4f5c (\u65f6\u95f4\u5e38\u6570)<\/th><th>\u6838\u5fc3\u76ee\u6807<\/th><\/tr><\/thead><tbody><tr><td>\u5b58\u5728\u5f3a\u8109\u51b2\u5e72\u6270 (\u5982\u706b\u82b1\u585e\u3001\u7535\u673a\u566a\u58f0)<\/td><td>\u5173\u95edAGC<\/td><td>&#8211;<\/td><td>\u9632\u6b62AGC\u88ab\u5e72\u6270\u8109\u51b2\u201c\u8bef\u5bfc\u201d\u800c\u9519\u8bef\u538b\u5236\u6709\u7528\u4fe1\u53f7<\/td><\/tr><tr><td>\u8fdb\u884c\u4fe1\u53f7\u6d4b\u91cf\u6216\u5b9e\u9a8c<\/td><td>\u5173\u95edAGC \u6216 \u4f7f\u7528\u624b\u52a8\u589e\u76ca\u63a7\u5236(MGC)<\/td><td>&#8211;<\/td><td>\u83b7\u5f97\u4e0d\u53d7\u81ea\u52a8\u73af\u8def\u5f71\u54cd\u7684\u3001\u7a33\u5b9a\u7684\u4fe1\u53f7\u7535\u5e73\u8bfb\u6570<\/td><\/tr><tr><td>\u63a5\u6536CW\u7535\u62a5\u3001FT8\/RTTY\u7b49\u6570\u5b57\u4fe1\u53f7<\/td><td>\u5f00\u542f<\/td><td>\u77ed\/\u5feb\u901f (10-100 ms)<\/td><td>\u5feb\u901f\u8ddf\u8e2a\u4fe1\u53f7\u7684\u77ac\u65f6\u53d8\u5316\uff0c\u907f\u514d\u7801\u5143\u91cd\u53e0\u6216\u5931\u771f<\/td><\/tr><tr><td>\u8fdb\u884cSSB\u8bed\u97f3\u901a\u4fe1\u3001\u6536\u542c\u5e7f\u64ad<\/td><td>\u5f00\u542f<\/td><td>\u957f\/\u6162\u901f (0.3-2\u79d2)<\/td><td>\u4fdd\u6301\u8bed\u97f3\u81ea\u7136\u5ea6\uff0c\u907f\u514d\u51fa\u73b0\u201c\u62bd\u5438\u201d\u566a\u58f0\uff0c\u542c\u611f\u8212\u9002<\/td><\/tr><tr><td>\u4fe1\u53f7\u5f3a\u5ea6\u7f13\u6162\u53d8\u5316 (\u5982 fading)<\/td><td>\u5f00\u542f<\/td><td>\u957f\/\u6162\u901f<\/td><td>\u5e73\u6ed1\u5730\u5e94\u5bf9\u4fe1\u53f7\u8d77\u4f0f\uff0c\u907f\u514dAGC\u5f15\u5165\u4e0d\u5fc5\u8981\u7684\u589e\u76ca\u6ce2\u52a8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4f55\u65f6\u5173\u95edAGC\u529f\u80fd?\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\uff0c\u5173\u95edAGC\u662f\u66f4\u660e\u667a\u7684\u9009\u62e9\uff0c\u8fd9\u4e3b\u8981\u57fa\u4e8e\u4e24\u70b9\u8003\u8651\uff1a\u4e00\u662f\u9632\u6b62AGC\u5bf9\u975e\u7406\u60f3\u4fe1\u53f7\uff08\u5982\u8109\u51b2\u5e72\u6270\uff09\u4ea7\u751f\u8fc7\u5ea6\u53cd\u5e94\uff1b\u4e8c\u662f\u4e3a\u4e86\u8fdb\u884c\u7cbe\u786e\u6d4b\u91cf\u3002\u5e94\u5bf9\u8109\u51b2\u5e72\u6270\uff1a\u5f53\u63a5\u6536\u673a\u53d7\u5230\u7c7b\u4f3c\u8f66\u8f86\u706b\u82b1\u585e\u70b9\u706b\u4ea7\u751f\u7684\u5f3a\u8109\u51b2\u5e72\u6270\u65f6\uff0c\u8fd9\u4e9b\u7a81\u53d1\u5f3a\u4fe1\u53f7\u4f1a\u4f7fAGC\u8bef\u4ee5\u4e3a\u6709\u7528\u4fe1\u53f7\u8fc7\u5f3a\uff0c\u4ece\u800c\u5feb\u901f\u964d\u4f4e\u589e\u76ca\u3002\u8fd9\u4f1a\u5bfc\u81f4\u8109\u51b2\u566a\u58f0\u8fc7\u540e\uff0c\u63a5\u6536\u673a\u589e\u76ca\u65e0\u6cd5\u7acb\u5373\u6062\u590d\uff0c\u4f7f\u5f97\u7d27\u968f\u5176\u540e\u7684\u5f31\u6709\u7528\u4fe1\u53f7\u88ab\u6682\u65f6\u201c\u538b\u5236\u201d\u800c\u542c\u4e0d\u6e05\u3002\u6b64\u65f6\u5173\u95edAGC\uff0c\u53ef\u4ee5\u907f\u514d\u63a5\u6536\u673a\u589e\u76ca\u88ab\u5e72\u6270\u4fe1\u53f7\u6240\u7275\u5236\u3002\u8fdb\u884c\u7cbe\u786e\u6d4b\u91cf\uff1a\u5f53\u4f60\u9700\u8981\u7cbe\u786e\u6d4b\u91cf\u4fe1\u53f7\u5f3a\u5ea6\u3001\u89c2\u5bdf\u4fe1\u53f7\u5305\u7edc\u6216\u8fdb\u884c\u9891\u8c31\u5206\u6790\u65f6\uff0cAGC\u7684\u81ea\u52a8\u589e\u76ca\u8c03\u6574\u4f1a\u5f15\u5165\u53d8\u91cf\uff0c\u4f7f\u8bfb\u6570\u4e0d\u7a33\u5b9a\u6216\u5931\u771f\u3002\u5173\u95edAGC\u5e76\u5207\u6362\u81f3\u624b\u52a8\u589e\u76ca\u63a7\u5236\uff08MGC\uff09\u6a21\u5f0f\uff0c\u53ef\u4ee5\u56fa\u5b9a\u63a5\u6536\u673a\u7684\u589e\u76ca\uff0c\u4ece\u800c\u83b7\u5f97\u51c6\u786e\u7684\u6d4b\u91cf\u7ed3\u679c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f55\u65f6\u9009\u62e9\u77ed\u65f6\u95f4\u5e38\u6570\uff08\u5feb\u901fAGC\uff09<\/h3>\n\n\n\n<p>\u77ed\u65f6\u95f4\u5e38\u6570\u610f\u5473\u7740AGC\u73af\u8def\u54cd\u5e94\u975e\u5e38\u8fc5\u901f\uff0c\u80fd\u7d27\u8ddf\u8f93\u5165\u4fe1\u53f7\u7684\u5feb\u901f\u53d8\u5316\u3002\u8fd9\u5c24\u5176\u9002\u7528\u4e8e\u4fe1\u53f7\u672c\u8eab\u5177\u6709\u77ac\u65f6\u7a81\u53d8\u7279\u6027\u7684\u573a\u666f\u3002CW\u7535\u62a5\u4e0e\u6570\u5b57\u6a21\u5f0f\uff1a\u5728\u63a5\u6536\u6469\u5c14\u65af\u7535\u7801\uff08CW\uff09\u6216FT8\u3001RTTY\u7b49\u6570\u5b57\u4fe1\u53f7\u65f6\uff0c\u4fe1\u53f7\u672c\u8eab\u4ee5\u5feb\u901f\u7684\u201c\u6709\u201d\u548c\u201c\u65e0\u201d\u6765\u4f20\u9012\u4fe1\u606f\u3002\u5feb\u901f\u7684AGC\u80fd\u786e\u4fdd\u5728\u6bcf\u4e2a\u201c\u70b9\u201d\u6216\u201c\u5212\u201d\u5f00\u59cb\u7684\u77ac\u95f4\u8fc5\u901f\u964d\u4f4e\u589e\u76ca\uff0c\u5728\u95f4\u9699\u65f6\u53c8\u8fc5\u901f\u6062\u590d\uff0c\u4ece\u800c\u4fdd\u6301\u4fe1\u53f7\u5e45\u5ea6\u7a33\u5b9a\uff0c\u907f\u514d\u7801\u5143\u5931\u771f\uff0c\u6781\u5927\u63d0\u9ad8\u89e3\u8c03\u548c\u89e3\u7801\u7684\u51c6\u786e\u6027\u3002\u7a81\u53d1\u4f20\u8f93\u6a21\u5f0f\uff08TDD\uff09\uff1a\u5728\u4e00\u4e9b\u91c7\u7528\u65f6\u5206\u53cc\u5de5\uff08TDD\uff09\u7684\u7a81\u53d1\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u6570\u636e\u4ee5\u8109\u51b2\u4e32\u7684\u5f62\u5f0f\u4f20\u8f93\u3002\u5feb\u901fAGC\u80fd\u5728\u6bcf\u4e2a\u8109\u51b2\u4e32\u5f00\u59cb\u7684\u5f88\u77ed\u65f6\u95f4\u5185\u8fc5\u901f\u8c03\u6574\u589e\u76ca\u81f3\u6700\u4f73\u72b6\u6001\uff0c\u786e\u4fdd\u5728\u4e3b\u8981\u6570\u636e\u5230\u8fbe\u65f6\u63a5\u6536\u673a\u5df2\u51c6\u5907\u5c31\u7eea\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f55\u65f6\u9009\u62e9\u957f\u65f6\u95f4\u5e38\u6570\uff08\u6162\u901fAGC\uff09<\/h3>\n\n\n\n<p>\u957f\u65f6\u95f4\u5e38\u6570\u610f\u5473\u7740AGC\u54cd\u5e94\u8f83\u4e3a\u8fdf\u7f13\uff0c\u5176\u4f5c\u7528\u662f\u5e73\u6ed1\u6389\u4fe1\u53f7\u7684\u5feb\u901f\u8d77\u4f0f\uff0c\u9002\u7528\u4e8e\u5bf9\u4fe1\u53f7\u4fdd\u771f\u5ea6\u548c\u542c\u89c9\u8212\u9002\u5ea6\u8981\u6c42\u9ad8\u7684\u573a\u666f\u3002SSB\/AM\u8bed\u97f3\u901a\u4fe1\u4e0e\u5e7f\u64ad\u6536\u542c\uff1a\u5728\u63a5\u6536\u5355\u8fb9\u5e26\uff08SSB\uff09\u8bed\u97f3\u3001\u8c03\u5e45\uff08AM\uff09\u5e7f\u64ad\u65f6\uff0c\u4eba\u58f0\u6216\u97f3\u4e50\u7684\u81ea\u7136\u8d77\u4f0f\u662f\u76f8\u5bf9\u7f13\u6162\u7684\u3002\u82e5AGC\u8fc7\u5feb\uff0c\u5b83\u4f1a\u8bd5\u56fe\u201c\u8ffd\u9010\u201d\u8bed\u97f3\u6ce2\u5f62\u4e2d\u7684\u6bcf\u4e2a\u97f3\u8282\u5cf0\u503c\uff0c\u5bfc\u81f4\u80cc\u666f\u566a\u58f0\u968f\u7740\u8bdd\u97f3\u5927\u5c0f\u800c\u8d77\u4f0f\uff0c\u4ea7\u751f\u4ee4\u4eba\u4e0d\u9002\u7684\u201c\u62bd\u5438\u6548\u5e94\u201d\u3002\u6162\u901fAGC\u5219\u53ef\u4ee5\u5e73\u6ed1\u8fd9\u79cd\u53d8\u5316\uff0c\u63d0\u4f9b\u67d4\u548c\u3001\u81ea\u7136\u7684\u542c\u611f\u3002\u5e94\u5bf9\u7f13\u6162\u8870\u843d\uff1a\u5728\u77ed\u6ce2\u901a\u4fe1\u7b49\u573a\u666f\u4e2d\uff0c\u4fe1\u53f7\u4f1a\u56e0\u7535\u79bb\u5c42\u53d8\u5316\u51fa\u73b0\u7f13\u6162\u7684\u201c\u8870\u843d\u201d\uff08\u4fe1\u53f7\u5f3a\u5ea6\u5468\u671f\u6027\u8d77\u4f0f\uff09\u3002\u6162\u901fAGC\u53ef\u4ee5\u5e73\u6ed1\u5730\u8ddf\u968f\u8fd9\u79cd\u7f13\u6162\u53d8\u5316\uff0c\u7ef4\u6301\u7a33\u5b9a\u7684\u97f3\u91cf\uff0c\u540c\u65f6\u907f\u514d\u5c06\u5feb\u901f\u7684\u8870\u843d\u8c37\u5e95\u8bef\u5224\u4e3a\u9700\u8981\u63d0\u5347\u589e\u76ca\u7684\u65f6\u523b\uff0c\u4ece\u800c\u4fdd\u6301\u8f83\u597d\u7684\u4fe1\u566a\u6bd4\u3002<\/p>\n\n\n\n<p><strong>\u6838\u5fc3\u6743\u8861\uff1a<\/strong>AGC\u65f6\u95f4\u5e38\u6570\u7684\u9009\u62e9\uff0c\u672c\u8d28\u4e0a\u662f \u201c\u54cd\u5e94\u901f\u5ea6\u201d \u4e0e \u201c\u7a33\u5b9a\u6027\/\u5e73\u6ed1\u5ea6\u201d \u4e4b\u95f4\u7684\u6743\u8861\u3002\u5feb\u7684AGC\u8ddf\u8e2a\u53d8\u5316\u597d\uff0c\u4f46\u53ef\u80fd\u5f15\u5165\u5931\u771f\u548c\u566a\u58f0\uff1b\u6162\u7684AGC\u542c\u611f\u5e73\u6ed1\uff0c\u4f46\u53ef\u80fd\u65e0\u6cd5\u8ddf\u4e0a\u4fe1\u53f7\u7684\u5feb\u901f\u7a81\u53d8\u3002<strong>\u5b9e\u8df5\u64cd\u4f5c\uff1a<\/strong>\u8bb8\u591a\u7535\u53f0\u7684AGC\u8bbe\u7f6e\u53ef\u80fd\u76f4\u63a5\u6807\u6ce8\u4e3a\u201cFast\u201d\u3001\u201cMed\u201d\u3001\u201cSlow\u201d\uff0c\u6216\u8005\u63d0\u4f9b\u5177\u4f53\u65f6\u95f4\u5e38\u6570\uff08\u59821s\u30010.1s\uff09\u4f9b\u9009\u62e9\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u4e0a\u8ff0\u8868\u683c\u548c\u539f\u7406\uff0c\u7ed3\u5408\u5f53\u524d\u7684\u901a\u4fe1\u6a21\u5f0f\u548c\u73af\u5883\u8fdb\u884c\u8bbe\u5b9a\u3002\u5982\u679c\u4e0d\u786e\u5b9a\uff0c\u4ece\u4e00\u4e2a\u4e2d\u7b49\uff08Med\uff09\u8bbe\u7f6e\u5f00\u59cb\u5c1d\u8bd5\u662f\u4e00\u4e2a\u7a33\u59a5\u7684\u529e\u6cd5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7b26\u53f7<\/th><th>\u6700\u53ef\u80fd\u7684\u542b\u4e49 (\u901a\u4fe1\u76f8\u5173)<\/th><th>\u5176\u4ed6\u5e38\u89c1\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td>PRC<\/td><td>Party Channel (\u56e2\u4f53\u4fe1\u9053) \/ Party Call (\u56e2\u4f53\u547c\u53eb)<\/td><td>) People&#8217;s Republic of China (\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd)<\/td><\/tr><tr><td>A LC<\/td><td>Automatic Level Control (\u81ea\u52a8\u7535\u5e73\u63a7\u5236)<\/td><td>\u5728\u5149\u7ea4\u901a\u4fe1\u4e2d\uff0cLC\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u5149\u7ea4\u8fde\u63a5\u5668\u7c7b\u578b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>PRC\uff08\u56e2\u4f53\u4fe1\u9053\/\u547c\u53eb\uff09\uff1a<\/strong>\u8fd9\u4e2a\u529f\u80fd\u975e\u5e38\u5b9e\u7528\u3002\u5f53\u4f60\u548c\u591a\u4e2a\u540c\u4f34\u5728\u6237\u5916\u6d3b\u52a8\uff08\u5982\u767b\u5c71\u3001\u8f66\u961f\u51fa\u884c\uff09\u65f6\uff0c\u53ef\u4ee5\u5c06\u7535\u53f0\u8bbe\u7f6e\u4e3a\u4e00\u4e2a\u5171\u540c\u7684\u201c\u56e2\u4f53\u4fe1\u9053\u201d\u3002\u4e00\u65e6\u8bbe\u5b9a\uff0c\u53ea\u8981\u5728\u8fd9\u4e2a\u4fe1\u9053\u4e0a\uff0c\u4f60\u6309\u4e0bPTT\uff08\u53d1\u5c04\u952e\uff09\u8bf4\u8bdd\uff0c\u7ec4\u5185\u6240\u6709\u5728\u6b64\u4fe1\u9053\u4e0a\u7684\u6210\u5458\u90fd\u80fd\u542c\u5230\uff0c\u5b9e\u73b0\u9ad8\u6548\u7684\u7fa4\u4f53\u6c9f\u901a\u3002\u8fd9\u907f\u514d\u4e86\u9891\u7e41\u5207\u6362\u4fe1\u9053\u6216\u9010\u4e2a\u547c\u53eb\u7684\u9ebb\u70e6\u3002<strong>A LC\uff08\u81ea\u52a8\u7535\u5e73\u63a7\u5236\uff09\uff1a<\/strong>\u8fd9\u662f\u4e00\u4e2a\u4fdd\u8bc1\u8bed\u97f3\u4f20\u8f93\u8d28\u91cf\u7684\u201c\u667a\u80fd\u201d\u529f\u80fd\u3002\u5b83\u80fd\u81ea\u52a8\u8c03\u8282\u4f60\u8bf4\u8bdd\u8fdb\u5165\u9ea6\u514b\u98ce\u7684\u97f3\u9891\u5f3a\u5ea6\uff0c\u786e\u4fdd\u4fe1\u53f7\u65e2\u4e0d\u4f1a\u8fc7\u5f3a\u5bfc\u81f4\u5931\u771f\u548c\u6742\u97f3\uff0c\u4e5f\u4e0d\u4f1a\u8fc7\u5f31\u8ba9\u5bf9\u65b9\u542c\u4e0d\u6e05\u3002\u901a\u5e38\u8bbe\u5907\u4e0a\u4f1a\u6709\u4e00\u4e2aALC\u6307\u793a\u8868\uff0c\u7406\u60f3\u72b6\u6001\u662f\u8ba9\u6307\u9488\u4fdd\u6301\u5728\u4e00\u5b9a\u7684\u8303\u56f4\u5185\uff0c\u4f46\u4e0d\u8981\u957f\u65f6\u95f4\u6253\u5230\u6700\u9ad8\u70b9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5355\u8fb9\u5e26\uff08SSB\uff09\u901a\u4fe1\u4e2d\u7684\u81ea\u52a8\u7535\u5e73\u63a7\u5236\uff08ALC\uff09<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<h3 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3:1\uff09\u7684\u60c5\u51b5\u4e0b\u5168\u529f\u7387\u53d1\u5c04\uff0c\u7edd\u5927\u90e8\u5206\u53d1\u5c04\u529f\u7387\u4f1a\u88ab\u53cd\u5c04\u56de\u53d1\u5c04\u673a\u672b\u7ea7\u529f\u653e\u7ba1\uff0c\u5bfc\u81f4\u529f\u653e\u7ba1\u56e0\u8fc7\u70ed\u800c\u8fc5\u901f\u635f\u574f\u3002<strong>\u600e\u4e48\u505a\uff1a<\/strong>\u5148\u5c0f\u529f\u7387\u6d4b\u8bd5\uff1a \u9996\u6b21\u6d4b\u8bd5\u6216\u66f4\u6362\u5929\u7ebf\u7cfb\u7edf\u540e\uff0c\u52a1\u5fc5\u5148\u5c06\u53d1\u5c04\u673a\u529f\u7387\u8c03\u5230\u6700\u4f4e\u3002\u5feb\u901f\u6d4b\u91cf\u9a7b\u6ce2\u6bd4\uff1a \u5728\u4f4e\u529f\u7387\u4e0b\u6d4b\u91cf\u9a7b\u6ce2\u6bd4\uff0c\u786e\u8ba4\u5176\u5904\u4e8e\u5b89\u5168\u8303\u56f4\uff08\u901a\u5e38\u8ba4\u4e3a &lt; 1.5:1 \u4f18\u79c0\uff0c&lt; 2:1 \u53ef\u7528\uff0c&gt; 3:1 \u5371\u9669\uff09\u3002\u9010\u6b65\u52a0\u5927\u529f\u7387\uff1a \u786e\u8ba4\u5b89\u5168\u540e\uff0c\u518d\u9010\u6b65\u63d0\u9ad8\u529f\u7387\u5230\u5e38\u7528\u529f\u7387\u8fdb\u884c\u7cbe\u786e\u6d4b\u91cf\u3002<strong><em>2.\u4f7f\u7528\u5047\u8d1f\u8f7d\u8fdb\u884c\u57fa\u51c6\u6d4b\u8bd5\u548c\u8bbe\u5907\u4fdd\u62a4<\/em>\u4e3a\u4ec0\u4e48<\/strong>\uff1a\u63d0\u4f9b\u5b8c\u7f8e\u5339\u914d\uff1a \u5047\u8d1f\u8f7d\u662f\u4e00\u4e2a\u963b\u503c\u7b49\u4e8e\u7cfb\u7edf\u7279\u5f81\u963b\u6297\uff08\u901a\u5e38\u662f50\u6b27\u59c6\uff09\u7684\u7eaf\u7535\u963b\uff0c\u5176\u9a7b\u6ce2\u6bd4\u63a5\u8fd11:1\u3002\u5728\u8fd9\u4e2a\u72b6\u6001\u4e0b\uff0c\u53d1\u5c04\u673a\u7684\u80fd\u91cf\u88ab\u5b8c\u5168\u5438\u6536\uff0c\u4e0d\u4f1a\u8f90\u5c04\uff0c\u4e5f\u4e0d\u4f1a\u4ea7\u751f\u53cd\u5c04\u529f\u7387\uff0c\u662f\u6d4b\u8bd5\u53d1\u5c04\u673a\u672c\u8eab\u6027\u80fd\u7684\u201c\u91d1\u6807\u51c6\u201d\u3002<strong>\u7edd\u5bf9\u5b89\u5168\uff1a <\/strong>\u7531\u4e8e\u4e0d\u8f90\u5c04\uff0c\u4e0d\u4f1a\u5e72\u6270\u5176\u4ed6\u7535\u53f0\uff0c\u53ef\u4ee5\u5728\u4efb\u4f55\u65f6\u95f4\u3001\u4efb\u4f55\u9891\u7387\u8fdb\u884c\u6d4b\u8bd5\uff0c\u662f\u6587\u660e\u548c\u5b89\u5168\u7684\u505a\u6cd5\u3002<strong>\u600e\u4e48\u505a\uff1a<\/strong> \u5728\u8fde\u63a5\u5929\u7ebf\u524d\uff0c\u5148\u5c06\u5047\u8d1f\u8f7d\u63a5\u5165\u53d1\u5c04\u673a\u8f93\u51fa\u53e3\uff0c\u8fdb\u884c\u529f\u7387\u7b49\u53c2\u6570\u7684\u6d4b\u8bd5\u3002\u8fd9\u53ef\u4ee5\u5e2e\u4f60\u5224\u65ad\u662f\u53d1\u5c04\u673a\u672c\u8eab\u95ee\u9898\u8fd8\u662f\u5929\u7ebf\u7cfb\u7edf\u95ee\u9898\u3002<strong><em>3.<\/em><\/strong><em><strong>\u4fdd\u8bc1\u8fde\u63a5\u53ef\u9760\uff0c\u7ebf\u7f06\u4e0e\u4eea\u8868\u72b6\u6001\u826f\u597d<\/strong><\/em><strong>\u4e3a\u4ec0\u4e48\uff1a<\/strong> \u677e\u52a8\u7684\u63a5\u53e3\u3001\u52a3\u5316\u7684\u7ebf\u7f06\u4f1a\u5f15\u5165\u989d\u5916\u7684\u635f\u8017\u548c\u963b\u6297\u4e0d\u8fde\u7eed\u70b9\uff0c\u5bfc\u81f4\u6d4b\u91cf\u8bfb\u6570\u4e25\u91cd\u5931\u51c6\u3002<strong>\u600e\u4e48\u505a\uff1a<\/strong> \u68c0\u67e5\u6240\u6709\u63a5\u53e3\uff08M\u5934\u3001N\u5934\u7b49\uff09\u662f\u5426\u62e7\u7d27\uff0c\u7ebf\u7f06\u65e0\u6298\u635f\uff0c\u4eea\u8868\u672c\u8eab\u7ecf\u8fc7\u6821\u51c6\u3002<strong><em>4.\u7406\u89e3\u4eea\u8868\u7684\u529f\u7387\u5bb9\u91cf\u548c\u9891\u7387\u8303\u56f4:<\/em>\u4e3a\u4ec0\u4e48\uff1a<\/strong> \u529f\u7387\u8ba1\/\u9a7b\u6ce2\u6bd4\u8868\u6709\u6700\u5927\u627f\u53d7\u529f\u7387\uff0c\u8d85\u91cf\u7a0b\u4f1a\u70e7\u6bc1\u3002\u4e0d\u540c\u4eea\u8868\u6709\u5176\u6709\u6548\u5de5\u4f5c\u9891\u7387\u8303\u56f4\uff0c\u5728\u8303\u56f4\u5916\u6d4b\u91cf\u8bfb\u6570\u4e0d\u51c6\u786e\u3002<\/p>\n\n\n\n<p>\u603b\u7ed3\uff1a \u6b64\u90e8\u5206\u8003\u5bdf\u7684\u662f\u7cfb\u7edf\u6027\u7684\u3001\u5b89\u5168\u7684\u6d4b\u8bd5\u6d41\u7a0b\uff1a\u5047\u8d1f\u8f7d\u57fa\u51c6\u6d4b\u8bd5 -&gt; \u5c0f\u529f\u7387\u5929\u7ebf\u7cfb\u7edf\u6d4b\u8bd5 -&gt; \u786e\u8ba4\u5b89\u5168 -&gt; \u5168\u529f\u7387\u7cbe\u786e\u6d4b\u91cf<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e8c\u90e8\u5206\uff1a\u5355\u8fb9\u5e26\u4e1a\u4f59\u7535\u53f0\u6d4b\u8bd5\u68c0\u67e5\u5929\u7ebf\u9a7b\u6ce2\u6bd4\u9700\u8981\u53d1\u5c04\u5e73\u7a33\u7684\u8fde\u7eed\u4fe1\u53f7\uff0c\u6587\u660e\u7684\u505a\u6cd5\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n<p>\u6838\u5fc3\u77e5\u8bc6\u70b9\uff1a 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\u5c06\u7535\u53f0\u5207\u6362\u5230CW\u6a21\u5f0f\uff0c\u5728\u4e0d\u5f00\u542f\u4fa7\u97f3\u7684\u60c5\u51b5\u4e0b\uff0c\u77ed\u6682\u6309\u4e0b\u7535\u952e\uff08PTT\uff09\uff0c\u53d1\u5c04\u4e00\u4e2a\u7b49\u5e45\u6ce2\u3002\u4e3a\u4f55\u6587\u660e\uff1a<strong>1.\u4fe1\u53f7\u5e72\u51c0\uff1a<\/strong> CW\u6a21\u5f0f\u4ea7\u751f\u7684\u662f\u4e00\u4e2a\u5355\u4e00\u9891\u7387\u7684\u3001\u5e45\u5ea6\u7a33\u5b9a\u7684\u7eaf\u8f7d\u6ce2\uff0c\u662f\u7406\u60f3\u7684\u6d4b\u8bd5\u4fe1\u53f7\u3002<strong>2.\u5360\u7528\u5e26\u5bbd\u6781\u7a84\uff1a<\/strong> CW\u4fe1\u53f7\u7684\u9891\u8c31\u5bbd\u5ea6\u975e\u5e38\u7a84\uff0c\u5bf9\u5176\u5b83\u7535\u53f0\u7684\u5e72\u6270\u8fdc\u5c0f\u4e8eSSB\u8bed\u97f3\u6216\u5176\u5b83\u6a21\u5f0f\u3002<strong>3.\u53d1\u5c04\u65f6\u95f4\u77ed\uff1a<\/strong> \u4f60\u53ea\u9700\u8981\u6309\u4e0b\u7535\u952e1-2\u79d2\uff0c\u5c31\u8db3\u4ee5\u8ba9\u4eea\u8868\u6307\u9488\u7a33\u5b9a\u5e76\u8bfb\u53d6\u6570\u636e\uff0c\u5927\u5927\u51cf\u5c11\u4e86\u7a7a\u4e2d\u4e0d\u5fc5\u8981\u7684\u5360\u7528\u65f6\u95f4\u3002<strong><em>\u5176\u4ed6\u53ef\u884c\u7684\u6587\u660e\u505a\u6cd5\uff1a<\/em>\u4f7f\u7528FM\u6a21\u5f0f\uff1a<\/strong> FM\u6a21\u5f0f\u7684\u8f7d\u6ce2\u4e5f\u662f\u8fde\u7eed\u7684\uff0c\u4f46\u5360\u7528\u5e26\u5bbd\u8f83\u5bbd\u3002<strong>\u4f7f\u7528AM\u6a21\u5f0f\uff1a<\/strong> \u8f7d\u6ce2\u4e5f\u662f\u8fde\u7eed\u7684\u3002<strong>\uff08\u4e0d\u63a8\u8350\uff09\u5728\u6307\u5b9a\u9891\u7387\u548c\u6700\u4f4e\u529f\u7387\u4e0b\u7528SSB\u8bed\u97f3\u8bf4\u660e\uff1a <\/strong>\u5728\u67d0\u4e9b\u7d27\u6025\u6d4b\u8bd5\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u5728\u65e0\u4eba\u4f7f\u7528\u7684\u9891\u7387\u4e0a\u7528\u6700\u7b80\u6d01\u7684\u8bed\u97f3\uff08\u5982\u201c\u6d4b\u8bd5\uff0c123\u201d\uff09\u5feb\u901f\u5b8c\u6210\uff0c\u4f46\u8fd9\u4ecd\u7136\u662f\u4e0b\u7b56\u3002<strong>\u7edd\u5bf9\u4e0d\u6587\u660e\u7684\u505a\u6cd5\uff1a<\/strong>\u5728\u516c\u5171\u9891\u7387\u4e0a\u957f\u65f6\u95f4\u3001\u5927\u529f\u7387\u5730\u53d1\u5c04SSB\u8bed\u97f3\uff08\u6bd4\u5982\u201c\u6d4b\u8bd5\u3001\u4e00\u3001\u4e8c\u3001\u4e09\u3001\u5582\u2026\u201d\uff09\u6765\u89c2\u5bdf\u9a7b\u6ce2\u6bd4\u8868\u3002\u8fd9\u79cd\u884c\u4e3a\u4f1a\u4e25\u91cd\u5e72\u6270\u8be5\u9891\u7387\u53ca\u9644\u8fd1\u9891\u7387\u7684\u6b63\u5e38\u901a\u4fe1\uff0c\u662f\u7f3a\u4e4f\u64cd\u4f5c\u7d20\u517b\u7684\u8868\u73b0\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u53d1\u5c04\u673a\u4e0e\u5929\u7ebf\u7cfb\u7edf\u7684\u57fa\u672c\u539f\u7406\uff1a \u7406\u89e3\u9a7b\u6ce2\u6bd4\u3001\u53cd\u5c04\u529f\u7387\u3001\u963b\u6297\u5339\u914d\u4e0e\u529f\u653e\u5b89\u5168\u7684\u5173\u7cfb\u3002<\/li>\n\n\n\n<li>\u65e0\u7ebf\u7535\u6d4b\u91cf\u6280\u672f\uff1a\n<ul class=\"wp-block-list\">\n<li>\u638c\u63e1\u529f\u7387\u3001\u9a7b\u6ce2\u6bd4\u7b49\u5173\u952e\u53c2\u6570\u7684\u6d4b\u91cf\u65b9\u6cd5\u3002<\/li>\n\n\n\n<li>\u7406\u89e3\u4e0d\u540c\u4fe1\u53f7\u6a21\u5f0f\uff08SSB\uff0c CW\uff0c AM\uff0c FM\uff09\u7684\u4ea7\u751f\u673a\u5236\u548c\u9891\u8c31\u7279\u6027\u3002<\/li>\n\n\n\n<li>\u638c\u63e1\u201c\u5047\u8d1f\u8f7d\u201d\u8fd9\u4e00\u5173\u952e\u6d4b\u8bd5\u5de5\u5177\u7684\u4f5c\u7528\u548c\u4f7f\u7528\u573a\u666f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u8bbe\u5907\u5b89\u5168\u64cd\u4f5c\u89c4\u8303\uff1a \u5efa\u7acb\u201c\u5148\u5b89\u5168\uff0c\u540e\u6d4b\u91cf\u201d\u7684\u64cd\u4f5c\u6d41\u7a0b\u610f\u8bc6\uff0c\u61c2\u5f97\u5982\u4f55\u4fdd\u62a4\u6602\u8d35\u7684\u65e0\u7ebf\u7535\u8bbe\u5907\u3002<\/li>\n\n\n\n<li>\u4e1a\u4f59\u65e0\u7ebf\u7535\u64cd\u4f5c\u4f26\u7406\u4e0e\u6587\u660e\uff08\u91cd\u4e2d\u4e4b\u91cd\uff09\uff1a \u6df1\u523b\u7406\u89e3\u201c\u4e0d\u5e72\u6270\u4ed6\u4eba\u201d\u662f\u4e1a\u4f59\u65e0\u7ebf\u7535\u7684\u7b2c\u4e00\u51c6\u5219\u3002\u80fd\u591f\u5c06\u6280\u672f\u9700\u6c42\uff08\u9700\u8981\u6d4b\u8bd5\uff09\u4e0e\u6587\u660e\u64cd\u4f5c\uff08\u5982\u4f55\u4e0d\u6253\u6270\u4ed6\u4eba\u5730\u6d4b\u8bd5\uff09\u5b8c\u7f8e\u7ed3\u5408\u8d77\u6765\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">HF\u901a\u4fe1\u4e0eVHF\/UHF\u901a\u4fe1<\/h2>\n\n\n\n<p>HF\u901a\u4fe1\u4e0eVHF\/UHF\u901a\u4fe1\u662f\u4e24\u79cd\u7279\u6027\u622a\u7136\u4e0d\u540c\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u5b83\u4eec\u7684\u6bd4\u8f83\u662f\u4e1a\u4f59\u65e0\u7ebf\u7535\u77e5\u8bc6\u4f53\u7cfb\u7684\u57fa\u7840\u3002HF\u901a\u4fe1 \u50cf \u6d77\u8fd0\u6216\u6d32\u9645\u822a\u73ed\uff0c\u53ef\u4ee5\u8fde\u63a5\u4e16\u754c\u5404\u5927\u6d32\uff0c\u4f46\u901f\u5ea6\u53ef\u80fd\u8f83\u6162\uff0c\u53d7\u73af\u5883\uff08\u5982\u5929\u6c14\u3001\u7535\u79bb\u5c42\uff09\u5f71\u54cd\u5927\uff0c\u4e14\u201c\u4ea4\u901a\u5de5\u5177\u201d\uff08\u7535\u53f0\u548c\u5929\u7ebf\uff09\u901a\u5e38\u8f83\u5927\u3002VHF\/UHF\u901a\u4fe1 \u50cf \u57ce\u5e02\u5730\u94c1\u6216\u516c\u8def\u7f51\uff0c\u5728\u5c40\u90e8\u533a\u57df\uff08\u89c6\u7ebf\u8303\u56f4\u5185\uff09\u975e\u5e38\u9ad8\u6548\u3001\u7a33\u5b9a\u3001\u6e05\u6670\uff0c\u4f46\u8981\u8fde\u63a5\u5230\u66f4\u8fdc\u7684\u5730\u65b9\u9700\u8981\u5efa\u7acb\u201c\u4e2d\u7ee7\u7ad9\u201d\uff08\u50cf\u9ad8\u901f\u516c\u8def\u7684\u67a2\u7ebd\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027\u7ef4\u5ea6<\/th><th>HF\uff08\u9ad8\u9891\uff1a3-30 MHz\uff09<\/th><th>VHF\uff08\u751a\u9ad8\u9891\uff1a30-300 MHz\uff09 \/ UHF\uff08\u7279\u9ad8\u9891\uff1a300 MHz-3 GHz<\/th><\/tr><\/thead><tbody><tr><td>\u4f20\u64ad\u6a21\u5f0f<\/td><td>\u5929\u6ce2\uff1a\u4f9d\u9760\u7535\u79bb\u5c42\u53cd\u5c04\uff0c\u53ef\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u901a\u4fe1<\/td><td>\u89c6\u8ddd\u4f20\u64ad\uff1a\u4fe1\u53f7\u57fa\u672c\u6cbf\u76f4\u7ebf\u4f20\u64ad<\/td><\/tr><tr><td>\u5178\u578b\u901a\u4fe1\u8ddd\u79bb<\/td><td>\u6570\u767e\u516c\u91cc\u81f3\u4e0a\u4e07\u516c\u91cc\uff08\u73af\u7403\uff09<\/td><td>\u901a\u5e38\u51e0\u516c\u91cc\u81f3\u51e0\u5341\u516c\u91cc\uff08\u89c6\u9ad8\u5ea6\u800c\u5b9a\uff09\uff1b\u901a\u8fc7\u4e2d\u7ee7\u53ef\u6269\u5c55<\/td><\/tr><tr><td>\u4fe1\u53f7\u7a33\u5b9a\u6027<\/td><td>\u53d8\u5316\u5927\uff0c\u53d7\u65e5\u7167\u3001\u5b63\u8282\u3001\u592a\u9633\u6d3b\u52a8\u5f71\u54cd<\/td><td>\u76f8\u5bf9\u7a33\u5b9a\uff0c\u53d7\u5730\u5f62\u548c\u969c\u788d\u7269\u5f71\u54cd\u5927<\/td><\/tr><tr><td>\u901a\u8054\u5185\u5bb9<\/td><td>\u4ee5\u5197\u957f\u7684\u8bed\u97f3\u804a\u5929\u548c\u6570\u636e\u6a21\u5f0f\u4e3a\u4e3b<\/td><td>\u4ee5\u7b80\u77ed\u901a\u8054\u3001\u6570\u636e\u901a\u4fe1\u3001\u6570\u5b57\u8bed\u97f3\u4e3a\u4e3b<\/td><\/tr><tr><td>\u5929\u7ebf\u5c3a\u5bf8<\/td><td>\u8f83\u5927\uff08\u6ce2\u957f\u8f83\u957f\uff0c\u901a\u5e38\u51e0\u7c73\u5230\u51e0\u5341\u7c73\uff09<\/td><td>\u8f83\u5c0f\uff08\u6ce2\u957f\u8f83\u77ed\uff0c\u901a\u5e38\u51e0\u5398\u7c73\u5230\u51e0\u7c73\uff09<\/td><\/tr><tr><td>\u8bbe\u5907\u4e0e\u5929\u7ebf<\/td><td>\u7535\u53f0\u590d\u6742\uff0c\u9700\u8981\u5929\u8c03\uff1b\u5929\u7ebf\u5e9e\u5927<\/td><td>\u7535\u53f0\u5c0f\u5de7\uff0c\u624b\u6301\/\u8f66\u8f7d\u4fbf\u643a\uff1b\u5929\u7ebf\u5c0f\u5de7<\/td><\/tr><tr><td>\u5178\u578b\u5e94\u7528<\/td><td>\u8de8\u6d32\u3001\u8de8\u6d0b\u901a\u4fe1\uff0c\u5e94\u6025\u6551\u707e\u901a\u4fe1<\/td><td>\u672c\u5730\u901a\u4fe1\uff0c\u8f66\u961f\u8054\u7edc\uff0c\u6570\u636e\u7f51\u7edc\uff0c\u536b\u661f\u901a\u4fe1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f20\u64ad\u673a\u5236\uff1a\u6839\u672c\u6027\u7684\u533a\u522b,\u8fd9\u662f\u6240\u6709\u5dee\u5f02\u7684\u6839\u6e90\u3002<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HF\uff1a\u4f9d\u9760\u7535\u79bb\u5c42\u53cd\u5c04\uff08\u5929\u6ce2\uff09\n<ul class=\"wp-block-list\">\n<li>HF\u7535\u6ce2\u53ef\u4ee5\u88ab\u8ddd\u79bb\u5730\u9762\u6570\u5341\u5230\u6570\u767e\u516c\u91cc\u9ad8\u7684\u7535\u79bb\u5c42\u53cd\u5c04\u56de\u5730\u9762\uff0c\u4ece\u800c\u5b9e\u73b0\u8d85\u8d8a\u5730\u5e73\u7ebf\u7684\u8d85\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>\u7279\u70b9\uff1a\u4f20\u64ad\u8def\u5f84\u4e0d\u7a33\u5b9a\uff0c\u53d7\u592a\u9633\u6d3b\u52a8\u3001\u65e5\u591c\u4ea4\u66ff\u3001\u5b63\u8282\u53d8\u5316\u5f71\u54cd\u6781\u5927\u3002\u67d0\u4e2a\u9891\u6bb5\u53ef\u80fd\u5728\u767d\u5929\u5f00\u901a\uff0c\u665a\u4e0a\u5173\u95ed\u3002\u8fd9\u662f\u4e00\u79cd\u201c\u968f\u7f18\u201d\u7684\u3001\u63a2\u7d22\u6027\u7684\u901a\u4fe1\uff0c\u5145\u6ee1\u4e86\u4e0d\u786e\u5b9a\u6027\u5e26\u6765\u7684\u4e50\u8da3\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>VHF\/UHF\uff1a\u4e3b\u8981\u662f\u89c6\u8ddd\u4f20\u64ad\n<ul class=\"wp-block-list\">\n<li>\u8fd9\u4e9b\u9891\u7387\u7684\u7535\u6ce2\u4f1a\u7a7f\u900f\u7535\u79bb\u5c42\uff0c\u4e0d\u4f1a\u88ab\u53cd\u5c04\u56de\u6765\uff0c\u56e0\u6b64\u4e3b\u8981\u6cbf\u76f4\u7ebf\u4f20\u64ad\u3002\u5176\u901a\u4fe1\u8ddd\u79bb\u57fa\u672c\u88ab\u9650\u5236\u5728\u53cc\u65b9\u5929\u7ebf\u6240\u80fd\u201c\u770b\u5230\u201d\u7684\u8303\u56f4\u5185\u3002<\/li>\n\n\n\n<li>\u7279\u70b9\uff1a\u4fe1\u53f7\u7a33\u5b9a\u3001\u53ef\u9760\uff0c\u53ea\u8981\u5728\u89c6\u8ddd\u5185\u4e14\u65e0\u969c\u788d\u7269\uff0c\u901a\u4fe1\u8d28\u91cf\u5c31\u5f88\u597d\u3002\u901a\u4fe1\u8ddd\u79bb\u4e3b\u8981\u53d6\u51b3\u4e8e\u5929\u7ebf\u7684\u9ad8\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u901a\u4fe1\u8ddd\u79bb\u4e0e\u4e2d\u7ee7\u4f7f\u7528<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HF\uff1a\u5929\u7136\u8fdc\u8ddd\u79bb\n<ul class=\"wp-block-list\">\n<li>\u65e0\u9700\u4efb\u4f55\u4e2d\u7ee7\u7ad9\uff0c\u5229\u7528\u7535\u79bb\u5c42\u7684\u4e00\u6b21\u6216\u591a\u6b21\u53cd\u5c04\uff0c\u5373\u53ef\u4e0e\u5168\u4e16\u754c\u901a\u8054\u3002\u8fd9\u662fHF\u6700\u8ff7\u4eba\u7684\u5730\u65b9\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>VHF\/UHF\uff1a\u4f9d\u8d56\u9ad8\u5ea6\u548c\u4e2d\u7ee7\n<ul class=\"wp-block-list\">\n<li>\u81ea\u7136\u8ddd\u79bb\uff1a\u53d7\u5730\u7403\u66f2\u7387\u5f71\u54cd\uff0c\u5730\u9762\u4e24\u70b9\u95f4\u7684\u89c6\u8ddd\u8ddd\u79bb\u6709\u9650\u3002\u516c\u5f0f\u8fd1\u4f3c\u4e3a\uff1aD(km)=4.12x(H<sub>1<\/sub>(m)<sup>1\/2<\/sup> +H<sub>2<\/sub>(m)<sup>1\/2<\/sup>)\u5176\u4e2dH1\u548cH2\u662f\u53cc\u65b9\u5929\u7ebf\u9ad8\u5ea6\u3002<\/li>\n\n\n\n<li>\u4e2d\u7ee7\u7ad9\uff1a\u4e3a\u4e86\u6269\u5c55\u901a\u4fe1\u8303\u56f4\uff0c\u4e1a\u4f59\u65e0\u7ebf\u7535\u7231\u597d\u8005\u5efa\u7acb\u4e86\u5927\u91cf\u7684\u4e2d\u7ee7\u53f0\u3002\u5b83\u4eec\u901a\u5e38\u67b6\u8bbe\u5728\u9ad8\u5c71\u6216\u9ad8\u697c\u4e0a\uff0c\u8d1f\u8d23\u63a5\u6536\u5fae\u5f31\u4fe1\u53f7\u5e76\u653e\u5927\u3001\u8f6c\u53d1\uff0c\u4ece\u800c\u5c06\u4e2a\u4eba\u7535\u53f0\u7684\u901a\u4fe1\u8303\u56f4\u4ece\u51e0\u516c\u91cc\u6269\u5c55\u5230\u4e0a\u767e\u516c\u91cc\u3002<\/li>\n\n\n\n<li>\u5176\u4ed6\u6a21\u5f0f\uff1aVHF\/UHF\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5bf9\u6d41\u5c42\u6563\u5c04\u3001EME\u6216\u4e1a\u4f59\u536b\u661f\u5b9e\u73b0\u8d85\u89c6\u8ddd\u901a\u4fe1\uff0c\u4f46\u8fd9\u4e9b\u662f\u66f4\u4e13\u4e1a\u7684\u9886\u57df\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fe1\u53f7\u7279\u6027\u4e0e\u901a\u8054\u5185\u5bb9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HF\uff1a\u4e0d\u7a33\u5b9a\uff0c\u9002\u5408\u6df1\u5ea6\u4ea4\u6d41\n<ul class=\"wp-block-list\">\n<li>\u4fe1\u53f7\u53ef\u80fd\u5b58\u5728\u8870\u843d\u3001\u5931\u771f\u548c\u5e72\u6270\u3002\u901a\u8054\u8282\u594f\u8f83\u6162\uff0c\u53cc\u65b9\u9700\u8981\u8010\u5fc3\u62a5\u547c\u53f7\u3001\u4fe1\u53f7\u62a5\u544a\u548c\u4f4d\u7f6e\uff0c\u901a\u8bdd\u5185\u5bb9\u5f80\u5f80\u66f4\u4fa7\u91cd\u4e8e\u6280\u672f\u548c\u751f\u6d3b\u4ea4\u6d41\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>VHF\/UHF\uff1a\u6e05\u6670\u7a33\u5b9a\uff0c\u9002\u5408\u9ad8\u6548\u901a\u4fe1\n<ul class=\"wp-block-list\">\n<li>\u4fe1\u53f7\u8d28\u91cf\u901a\u5e38\u5f88\u9ad8\uff0c\u80cc\u666f\u566a\u97f3\u5c0f\uff0c\u8bed\u97f3\u6e05\u6670\u3002\u8fd9\u4f7f\u5176\u975e\u5e38\u9002\u5408\u5e94\u6025\u901a\u4fe1\u3001\u8f66\u961f\u8054\u7edc\u3001\u6d3b\u52a8\u73b0\u573a\u8c03\u5ea6\u7b49\u9700\u8981\u5feb\u901f\u3001\u51c6\u786e\u4f20\u9012\u4fe1\u606f\u7684\u573a\u666f\u3002\u901a\u8054\u901a\u5e38\u975e\u5e38\u7b80\u77ed\u660e\u4e86\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u8bbe\u5907\u4e0e\u5929\u7ebf<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HF\uff1a\u5e9e\u5927\u800c\u590d\u6742\n<ul class=\"wp-block-list\">\n<li>\u5929\u7ebf\uff1a\u7531\u4e8e\u6ce2\u957f\u957f\uff08\u598220\u7c73\u6ce2\u6bb5\u7684\u6ce2\u957f\u5c31\u662f20\u7c73\uff09\uff0c\u9ad8\u6548\u7684\u5929\u7ebf\u5c3a\u5bf8\u5de8\u5927\uff0c\u5bf9\u67b6\u8bbe\u7a7a\u95f4\u8981\u6c42\u9ad8\u3002<\/li>\n\n\n\n<li>\u7535\u53f0\uff1a\u9700\u8981\u5f3a\u5927\u7684\u529f\u653e\u548c\u590d\u6742\u7684\u6ee4\u6ce2\u7535\u8def\u6765\u5e94\u5bf9\u62e5\u6324\u7684HF\u6ce2\u6bb5\u548c\u5e72\u6270\u3002\u901a\u5e38\u5185\u7f6e\u6216\u5916\u63a5\u5929\u7ebf\u8c03\u8c10\u5668\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>VHF\/UHF\uff1a\u5c0f\u5de7\u800c\u4fbf\u643a\n<ul class=\"wp-block-list\">\n<li>\u5929\u7ebf\uff1a\u5929\u7ebf\u53ef\u4ee5\u505a\u5f97\u975e\u5e38\u5c0f\u5de7\uff0c\u751a\u81f3\u53ef\u4ee5\u96c6\u6210\u5728\u624b\u53f0\uff08\u5bf9\u8bb2\u673a\uff09\u4e0a\u3002<\/li>\n\n\n\n<li>\u7535\u53f0\uff1a\u8bbe\u5907\u53ef\u4ee5\u975e\u5e38\u5c0f\u5de7\uff0c\u4fbf\u4e8e\u79fb\u52a8\u548c\u643a\u5e26\u3002\u624b\u6301\u5bf9\u8bb2\u673a\u662f\u5176\u5178\u578b\u4ee3\u8868\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5929\u7ebf\u5982\u4f55\u5b9a\u5411\u805a\u96c6\u80fd\u91cf<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5929\u7ebf\u7684\u589e\u76ca\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n<p>\u5929\u7ebf\u7684\u589e\u76ca\uff0c\u672c\u8d28\u4e0a\u63cf\u8ff0\u7684\u662f\u5929\u7ebf\u5b9a\u5411\u805a\u96c6\u80fd\u91cf\u7684\u80fd\u529b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u4e2a\u751f\u52a8\u7684\u6bd4\u55bb\uff1a \u60f3\u8c61\u4e00\u4e2a\u666e\u901a\u706f\u6ce1\u548c\u4e00\u4e2a\u624b\u7535\u7b52\u3002\n<ul class=\"wp-block-list\">\n<li>\u666e\u901a\u706f\u6ce1\uff08\u65e0\u65b9\u5411\u6027\u5929\u7ebf\uff09\uff1a \u5b83\u5411\u56db\u9762\u516b\u65b9\uff08360\u5ea6\uff09\u5747\u5300\u5730\u53d1\u5149\u3002\u867d\u7136\u603b\u7684\u5149\u80fd\u91cf\u4e0d\u5c0f\uff0c\u4f46\u4efb\u4f55\u4e00\u4e2a\u65b9\u5411\u4e0a\u7684\u5149\u5f3a\u90fd\u4e0d\u9ad8\uff0c\u7167\u4e0d\u8fdc\u3002<\/li>\n\n\n\n<li>\u624b\u7535\u7b52\uff08\u6709\u589e\u76ca\u5929\u7ebf\uff09\uff1a \u5b83\u901a\u8fc7\u53cd\u5c04\u7897\uff08\u7c7b\u4f3c\u5929\u7ebf\u7684\u632f\u5b50\u548c\u5f15\u5411\u5668\uff09\u5c06\u5149\u7ebf\u805a\u7126\u6210\u4e00\u4e2a\u5149\u675f\u3002\u5728\u8fd9\u4e2a\u5149\u675f\u7684\u65b9\u5411\u4e0a\uff0c\u5149\u5f3a\u8fdc\u8fdc\u8d85\u8fc7\u706f\u6ce1\uff0c\u53ef\u4ee5\u7167\u5f97\u5f88\u8fdc\u3002\u624b\u7535\u7b52\u7684\u201c\u589e\u76ca\u201d\uff0c\u5c31\u662f\u5b83\u4e3b\u5149\u675f\u4e2d\u5fc3\u7684\u5149\u5f3a\uff0c\u6bd4\u706f\u6ce1\u5e73\u5747\u5149\u5f3a\u5927\u7684\u500d\u6570\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u65e0\u7ebf\u7535\u4e2d\u7684\u5b9a\u4e49\uff1a \u5929\u7ebf\u589e\u76ca\u662f\u6307\u5728\u8f93\u5165\u529f\u7387\u76f8\u540c\u7684\u6761\u4ef6\u4e0b\uff0c\u5b9e\u9645\u5929\u7ebf\u5728\u7a7a\u95f4\u6700\u5927\u8f90\u5c04\u65b9\u5411\u4e0a\u7684\u529f\u7387\u901a\u91cf\u5bc6\u5ea6\uff0c\u4e0e\u4e00\u4e2a\u7406\u60f3\u5316\u7684\u53c2\u8003\u5929\u7ebf\u5728\u6700\u5927\u8f90\u5c04\u65b9\u5411\u4e0a\u7684\u529f\u7387\u901a\u91cf\u5bc6\u5ea6\u7684\u6bd4\u503c<\/li>\n<\/ul>\n\n\n\n<p>\u5929\u7ebf\u589e\u76ca\u4e0d\u662f\u201c\u653e\u5927\u201d\uff0c\u800c\u662f\u201c\u91cd\u65b0\u5206\u914d\u201d\u3002\u5b83\u901a\u8fc7\u727a\u7272\u67d0\u4e9b\u65b9\u5411\u7684\u8f90\u5c04\u80fd\u91cf\uff0c\u6765\u589e\u5f3a\u7279\u5b9a\u65b9\u5411\u7684\u80fd\u91cf\u3002\u5b83\u7528\u6574\u4f53\u7684\u8986\u76d6\u8303\u56f4\uff0c\u6362\u53d6\u4e86\u7279\u5b9a\u65b9\u5411\u4e0a\u7684\u8ddd\u79bb\u548c\u5f3a\u5ea6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7406\u60f3\u70b9\u6e90\u5929\u7ebf\u53ca\u5176\u610f\u4e49<\/h3>\n\n\n\n<p>\u8981\u91cf\u5316\u589e\u76ca\uff0c\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u516c\u5e73\u7684\u201c\u53c2\u7167\u7269\u201d\u3002\u8fd9\u5c31\u662f\u7406\u60f3\u70b9\u6e90\u5929\u7ebf\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b83\u662f\u4ec0\u4e48\uff1f \u7406\u60f3\u70b9\u6e90\u5929\u7ebf\uff0c\u4e5f\u79f0\u4e3a\u5404\u5411\u540c\u6027\u5929\u7ebf\u3002\u5b83\u662f\u4e00\u4e2a\u5728\u73b0\u5b9e\u4e2d\u65e0\u6cd5\u5b9e\u73b0\u7684\u3001\u5b58\u5728\u4e8e\u7406\u8bba\u4e2d\u7684\u5929\u7ebf\u3002<\/li>\n\n\n\n<li>\u5b83\u7684\u7279\u6027\uff1a \u5b83\u5728\u6240\u6709\u65b9\u5411\u4e0a\u7684\u8f90\u5c04\u548c\u63a5\u6536\u80fd\u529b\u90fd\u5b8c\u5168\u76f8\u540c\uff0c\u5176\u8f90\u5c04\u6a21\u5f0f\u662f\u4e00\u4e2a\u5b8c\u7f8e\u7684\u7403\u4f53\u3002<\/li>\n\n\n\n<li>\u5b83\u7684\u610f\u4e49\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5b8c\u7f8e\u7684\u53c2\u8003\u57fa\u51c6\uff1a \u56e0\u4e3a\u5b83\u7edd\u5bf9\u5747\u5300\u3001\u65e0\u4efb\u4f55\u65b9\u5411\u6027\uff0c\u6240\u4ee5\u662f\u8ba1\u7b97\u548c\u6bd4\u8f83\u5929\u7ebf\u589e\u76ca\u6700\u7406\u60f3\u3001\u6700\u65e0\u6b67\u4e49\u7684\u57fa\u51c6\u3002<\/li>\n\n\n\n<li>\u7406\u8bba\u57fa\u77f3\uff1a \u5b83\u662f\u5929\u7ebf\u7406\u8bba\u548c\u7535\u6ce2\u4f20\u64ad\u8ba1\u7b97\u4e2d\u7684\u57fa\u672c\u6a21\u578b\uff0c\u8bb8\u591a\u590d\u6742\u7684\u5206\u6790\u90fd\u4ece\u8fd9\u91cc\u5f00\u59cb\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<p><strong>\u589e\u76ca\u7684\u5355\u4f4d dBi \u4e0e dBd<\/strong><\/p>\n\n\n\n<p>\u56e0\u4e3a\u589e\u76ca\u662f\u4e00\u4e2a\u6bd4\u503c\uff0c\u6240\u4ee5\u901a\u5e38\u7528\u5206\u8d1d\u6765\u8868\u793a\u3002\u5206\u8d1d\u7684\u4e0d\u540c\uff0c\u6e90\u4e8e\u9009\u62e9\u7684\u53c2\u8003\u57fa\u51c6\u4e0d\u540c\u3002<\/p>\n\n\n\n<p>1.\u4ee5 dBi \u4e3a\u5355\u4f4d\u7684\u5929\u7ebf\u589e\u76ca<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53c2\u8003\u57fa\u51c6\uff1a \u5404\u5411\u540c\u6027\u5929\u7ebf\u3002<\/li>\n\n\n\n<li>\u542b\u4e49\uff1a \u5929\u7ebf\u7684\u6700\u5927\u8f90\u5c04\u65b9\u5411\u5f3a\u5ea6\uff0c\u6bd4\u7406\u60f3\u70b9\u6e90\u5929\u7ebf\u5f3a\u591a\u5c11\u5206\u8d1d\u3002<\/li>\n\n\n\n<li>\u4e3e\u4f8b\uff1a \u4e00\u4e2a\u589e\u76ca\u4e3a 10 dBi \u7684\u5929\u7ebf\uff0c\u610f\u5473\u7740\u5728\u6700\u5927\u8f90\u5c04\u65b9\u5411\u4e0a\uff0c\u5176\u8f90\u5c04\u5f3a\u5ea6\u662f\u7406\u60f3\u70b9\u6e90\u5929\u7ebf\u7684 10 \u500d\uff08\u5728\u5206\u8d1d\u8ba1\u7b97\u4e2d\uff0c10dB \u5bf9\u5e94 10 \u500d\u529f\u7387\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>2.\u4ee5 dBd \u4e3a\u5355\u4f4d\u7684\u5929\u7ebf\u589e\u76ca<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53c2\u8003\u57fa\u51c6\uff1a \u534a\u6ce2\u5076\u6781\u5929\u7ebf\u3002\u8fd9\u662f\u5728\u73b0\u5b9e\u4e2d\u975e\u5e38\u5e38\u89c1\u4e14\u6613\u4e8e\u5b9e\u73b0\u7684\u6807\u51c6\u5929\u7ebf\u3002<\/li>\n\n\n\n<li>\u542b\u4e49\uff1a \u5929\u7ebf\u7684\u6700\u5927\u8f90\u5c04\u65b9\u5411\u5f3a\u5ea6\uff0c\u6bd4\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u5f3a\u591a\u5c11\u5206\u8d1d\u3002<\/li>\n\n\n\n<li>\u4e3e\u4f8b\uff1a \u4e00\u4e2a\u589e\u76ca\u4e3a 8 dBd \u7684\u5929\u7ebf\uff0c\u610f\u5473\u7740\u5176\u8f90\u5c04\u5f3a\u5ea6\u662f\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u7684 8 \u500d\u3002<\/li>\n<\/ul>\n\n\n\n<p>3.dBi \u4e0e dBd \u7684\u6362\u7b97\u5173\u7cfb<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<p>\u7531\u4e8e\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u672c\u8eab\u76f8\u5bf9\u4e8e\u5404\u5411\u540c\u6027\u5929\u7ebf\u5c31\u6709\u589e\u76ca\uff08\u56e0\u4e3a\u5b83\u5c06\u80fd\u91cf\u96c6\u4e2d\u5728\u8d64\u9053\u5e73\u9762\u4e0a\uff0c\u800c\u4e0d\u662f\u4e0a\u4e0b\u4e24\u6781\uff09\uff0c\u6240\u4ee5\uff1a\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u7684\u589e\u76ca \u2248 2.15 dBi\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0cdBi \u548c dBd \u4e4b\u95f4\u5b58\u5728\u4e00\u4e2a\u56fa\u5b9a\u7684\u6362\u7b97\u5173\u7cfb\uff1a&#8221;\u589e\u76ca(dBi) = \u589e\u76ca(dBd) + 2.15&#8243;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u4e2a 0 dBd \u7684\u5929\u7ebf\uff0c\u5176\u589e\u76ca\u5c31\u662f 2.15 dBi\u3002<\/li>\n\n\n\n<li>\u4e00\u4e2a 10 dBi \u7684\u5929\u7ebf\uff0c\u5176\u589e\u76ca\u5c31\u662f 7.85 dBd\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u95ee\u9898\u7684\u5173\u952e\u2014\u2014\u4e3a\u4f55\u5fc5\u987b\u6307\u660e\u53c2\u8003\u57fa\u51c6<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5982\u679c\u8bf4\u5929\u7ebf\u7684\u589e\u76ca\u6307\u6807\u4ee5dB\u4e3a\u5355\u4f4d\uff0c\u5176\u610f\u4e49\u662f\u4ec0\u4e48\uff1f<\/li>\n<\/ol>\n\n\n\n<p>\u5982\u679c\u5382\u5bb6\u6216\u8d44\u6599\u4e0a\u53ea\u5199\u201c\u589e\u76ca\uff1a10 dB\u201d\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e0d\u5b8c\u6574\u3001\u4e0d\u4e13\u4e1a\u3001\u5177\u6709\u8bef\u5bfc\u6027\u7684\u8868\u8ff0\u3002\u56e0\u4e3a\u201cdB\u201d\u672c\u8eab\u53ea\u662f\u4e00\u4e2a\u6bd4\u503c\uff0c\u5b83\u5fc5\u987b\u57fa\u4e8e\u4e00\u4e2a\u53c2\u8003\u57fa\u51c6\u624d\u6709\u610f\u4e49\u3002\u8fd9\u4e2a\u201c10 dB\u201d\u5230\u5e95\u662f\u76f8\u5bf9\u4e8e\u8c01\uff1f\u662f dBi \u8fd8\u662f dBd\uff1f\u8fd9\u4f1a\u9020\u6210\u5de8\u5927\u7684\u5dee\u5f02\u3002<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u4e3a\u4ec0\u4e48\u8bf4\u672a\u6307\u660e\u8ba1\u7b97\u65b9\u6cd5\u548c\u4f7f\u7528\u57fa\u51c6\u5c31\u7f3a\u4e4f\u53c2\u8003\u610f\u4e49\uff1f<\/li>\n<\/ol>\n\n\n\n<p>\u56e0\u4e3a\u8fd9\u4f1a\u5bfc\u81f4\u6df7\u6dc6\u548c\u9519\u8bef\u7684\u6bd4\u8f83\uff0c\u4e3b\u8981\u6709\u4e24\u79cd\u60c5\u51b5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u60c5\u51b5\u4e00\uff1a\u6545\u610f\u6a21\u7cca\uff0c\u5938\u5927\u6307\u6807\uff08\u6700\u5e38\u89c1\u7684\u5546\u4e1a\u4f0e\u4fe9\uff09\n<ul class=\"wp-block-list\">\n<li>\u4e00\u4e2a\u5929\u7ebf\uff0c\u5982\u679c\u6807\u6ce8\u201c\u589e\u76ca\uff1a10 dB\u201d\uff0c\u6d88\u8d39\u8005\u5f88\u53ef\u80fd\u4f1a\u8bef\u4ee5\u4e3a\u662f 10 dBd\uff0c\u89c9\u5f97\u8fd9\u662f\u4e00\u4e2a\u9ad8\u589e\u76ca\u5929\u7ebf\u3002<\/li>\n\n\n\n<li>\u4f46\u5b9e\u9645\u4e0a\uff0c\u5382\u5bb6\u53ef\u80fd\u7528\u7684\u662f dBi \u57fa\u51c6\uff0c\u90a3\u4e48\u5b83\u7684\u5b9e\u9645\u589e\u76ca\u5c31\u662f 10 dBi\u3002\u6362\u7b97\u6210 dBd\uff0c\u53ea\u6709 10 &#8211; 2.15 = 7.85 \\text{ dBd} \u3002<\/li>\n\n\n\n<li>\u7ed3\u679c\uff1a \u7528 dBi \u7684\u6570\u503c\u53bb\u548c\u6d88\u8d39\u8005\u5fc3\u4e2d\u9ed8\u8ba4\u7684 dBd \u6982\u5ff5\u6bd4\u8f83\uff0c\u9020\u6210\u4e86\u5929\u7ebf\u6027\u80fd\u201c\u865a\u9ad8\u201d\u7684\u5047\u8c61\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u60c5\u51b5\u4e8c\uff1a\u57fa\u51c6\u4e0d\u660e\uff0c\u65e0\u6cd5\u8fdb\u884c\u79d1\u5b66\u6bd4\u8f83\n<ul class=\"wp-block-list\">\n<li>\u4f60\u6709\u4e24\u4e2a\u5929\u7ebf\uff0cA \u6807\u79f0 8 dB\uff0cB \u6807\u79f0 5 dB\u3002\u4f60\u80fd\u8bf4 A \u4e00\u5b9a\u6bd4 B \u597d\u5417\uff1f<\/li>\n\n\n\n<li>\u4e0d\u80fd\uff01 \u5982\u679c A \u7684 8 dB \u662f 8 dBd\uff08\u5373 10.15 dBi\uff09\uff0c\u800c B \u7684 5 dB \u662f 5 dBi\uff0c\u90a3\u4e48\u5b9e\u9645\u4e0a A\uff0810.15 dBi\uff09\u786e\u5b9e\u8fdc\u597d\u4e8e B\uff085 dBi\uff09\u3002<\/li>\n\n\n\n<li>\u4f46\u5982\u679c A \u662f 8 dBi\uff08\u5373 5.85 dBd\uff09\uff0c\u800c B \u662f 5 dBd\uff08\u5373 7.15 dBi\uff09\uff0c\u90a3\u4e48\u5b9e\u9645\u4e0a B \u7684\u6027\u80fd\u53cd\u800c\u6bd4 A \u8981\u597d\u3002<\/li>\n\n\n\n<li>\u7ed3\u679c\uff1a \u4e0d\u6307\u660e\u57fa\u51c6\uff0c\u4efb\u4f55\u6bd4\u8f83\u90fd\u662f\u65e0\u6548\u7684\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u603b\u7ed3:\u5929\u7ebf\u589e\u76ca\u662f\u5b9a\u5411\u805a\u96c6\u80fd\u91cf\u7684\u80fd\u529b\uff0c\u7528\u5206\u8d1d\u8868\u793a\u3002<\/p>\n\n\n\n<p>dBi \u4ee5\u7406\u8bba\u4e0a\u7684\u5404\u5411\u540c\u6027\u5929\u7ebf\u4e3a\u57fa\u51c6\uff0c\u662f\u5b66\u672f\u548c\u6807\u51c6\u5316\u7684\u5355\u4f4d\u3002<\/p>\n\n\n\n<p>dBd \u4ee5\u73b0\u5b9e\u4e2d\u5e38\u7528\u7684\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u4e3a\u57fa\u51c6\uff0c\u5728\u5de5\u7a0b\u5b9e\u8df5\u4e2d\u66f4\u76f4\u89c2\u3002<\/p>\n\n\n\n<p>\u6838\u5fc3\u5173\u7cfb\uff1a<br><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5929\u7ebf\u589e\u76ca\u662f\u5b9a\u5411\u805a\u96c6\u80fd\u91cf\u7684\u80fd\u529b\uff0c\u7528\u5206\u8d1d\u8868\u793a\u3002<\/li>\n\n\n\n<li>dBi \u4ee5\u7406\u8bba\u4e0a\u7684\u5404\u5411\u540c\u6027\u5929\u7ebf\u4e3a\u57fa\u51c6\uff0c\u662f\u5b66\u672f\u548c\u6807\u51c6\u5316\u7684\u5355\u4f4d\u3002<\/li>\n\n\n\n<li>dBd \u4ee5\u73b0\u5b9e\u4e2d\u5e38\u7528\u7684\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u4e3a\u57fa\u51c6\uff0c\u5728\u5de5\u7a0b\u5b9e\u8df5\u4e2d\u66f4\u76f4\u89c2\u3002<\/li>\n\n\n\n<li>\u6838\u5fc3\u5173\u7cfb\uff1a&#8221;dBi = dBd + 2.15&#8243;\u3002<\/li>\n\n\n\n<li>\u6700\u91cd\u8981\u7684\u539f\u5219\uff1a \u4efb\u4f55\u6709\u610f\u4e49\u7684\u589e\u76ca\u6307\u6807\u5fc5\u987b\u660e\u786e\u5176\u53c2\u8003\u57fa\u51c6\uff08dBi \u6216 dBd\uff09\u3002\u53ea\u5199\u201cdB\u201d\u662f\u4e0d\u8d1f\u8d23\u4efb\u7684\uff0c\u5728\u9009\u8d2d\u548c\u6bd4\u8f83\u5929\u7ebf\u65f6\uff0c\u52a1\u5fc5\u8be2\u95ee\u6e05\u695a\u6216\u8fdb\u884c\u6362\u7b97\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">dBi \u548c dBd \u7684\u5173\u7cfb<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>dBd\uff1a\u4ee5 \u534a\u6ce2\u5076\u6781\u5929\u7ebf \u81ea\u8eab\u4f5c\u4e3a\u53c2\u8003\u57fa\u51c6\uff080 dBd\uff09\u3002<\/li>\n\n\n\n<li>dBi\uff1a\u4ee5 \u7406\u60f3\u70b9\u6e90\u5929\u7ebf\uff08\u5404\u5411\u540c\u6027\u5929\u7ebf\uff09 \u4f5c\u4e3a\u53c2\u8003\u57fa\u51c6\uff080 dBi\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u90a3\u4e48\uff0c\u4e00\u4e2a\u81ea\u7136\u800c\u7136\u7684\u95ee\u9898\u5c31\u662f\uff1a\u4e00\u4e2a\u4f5c\u4e3a\u57fa\u51c6\u7684\u534a\u6ce2\u5076\u6781\u5929\u7ebf\uff080 dBd\uff09\uff0c\u5b83\u6bd4\u7406\u60f3\u70b9\u6e90\u5929\u7ebf\u5f3a\u591a\u5c11\u5462\uff1f\u8fd9\u4e2a\u5dee\u503c\u662f\u4e00\u4e2a\u56fa\u5b9a\u7684\u5e38\u6570\uff0c\u60a8\u9700\u8981\u8bb0\u4f4f\u5b83\uff1a<strong><em>\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u76f8\u5bf9\u4e8e\u5404\u5411\u540c\u6027\u5929\u7ebf\u7684\u589e\u76ca \u2248 2.15 dBi\u3002<\/em><\/strong>\u7528\u516c\u5f0f\u8868\u8fbe\u5c31\u662f:<strong><em>&#8220;\u589e\u76ca(dBi) = \u589e\u76ca(dBd) + 2.15&#8221;<\/em><\/strong><\/p>\n\n\n\n<p>\u9898\u76ee\u8bf4\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u7684\u589e\u76ca\u662f 0 dBd\u3002\u6211\u4eec\u73b0\u5728\u9700\u8981\u6c42\u7684\u662f\u4ee5 dBi \u4e3a\u5355\u4f4d\u7684\u589e\u76ca\u3002\u76f4\u63a5\u5957\u7528\u4e0a\u9762\u7684\u516c\u5f0f\uff1a&#8221;\u589e\u76ca(dBi) = 0 dBd + 2.15&#8243;,\u6240\u4ee5\uff0c\u7b54\u6848\u662f 2.15 dBi\u3002<\/p>\n\n\n\n<p>\u8fd9\u610f\u5473\u7740\uff0c\u5728\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u8f90\u5c04\u6700\u5f3a\u7684\u65b9\u5411\uff08\u901a\u5e38\u662f\u5782\u76f4\u4e8e\u632f\u5b50\u7684\u8d64\u9053\u9762\uff09\uff0c\u5b83\u7684\u8f90\u5c04\u5f3a\u5ea6\u662f\u90a3\u4e2a\u5411\u56db\u9762\u516b\u65b9\u5747\u5300\u8f90\u5c04\u7684\u7406\u60f3\u70b9\u6e90\u5929\u7ebf\u7684 2.15\u500d\u3002\u4e3a\u4ec0\u4e48\u4f1a\u6709\u589e\u76ca\uff1f \u56e0\u4e3a\u534a\u6ce2\u5076\u6781\u5929\u7ebf\u4e0d\u662f\u5411\u6240\u6709\u65b9\u5411\u5747\u5300\u8f90\u5c04\u7684\u3002\u5b83\u628a\u672c\u8be5\u5411\u4e0a\u3001\u5411\u4e0b\u8f90\u5c04\u7684\u80fd\u91cf\u201c\u8282\u7701\u201d\u4e0b\u6765\uff0c\u96c6\u4e2d\u5230\u4e86\u6c34\u5e73\u65b9\u5411\u4e0a\u3002\u8fd9\u79cd\u80fd\u91cf\u7684\u201c\u91cd\u65b0\u5206\u914d\u201d\u5bfc\u81f4\u4e86\u5728\u4e3b\u8981\u8f90\u5c04\u65b9\u5411\u4e0a\u5f3a\u5ea6\u7684\u63d0\u5347\u3002<\/p>\n\n\n\n<p>\u4eca\u540e\u9047\u5230\u8fd9\u7c7b\u9898\u76ee\uff0c\u8bf7\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8bc6\u522b\u57fa\u51c6\uff1a\u770b\u6e05\u9898\u76ee\u7ed9\u51fa\u7684\u589e\u76ca\u5355\u4f4d\u662f dBi \u8fd8\u662f dBd\u3002<\/li>\n\n\n\n<li>\u660e\u786e\u95ee\u9898\uff1a\u770b\u6e05\u9898\u76ee\u662f\u8981\u6c42\u4ece dBd \u6362\u7b97\u5230 dBi\uff0c\u8fd8\u662f\u53cd\u8fc7\u6765\u3002<\/li>\n\n\n\n<li>\u5e94\u7528\u516c\u5f0f\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5df2\u77e5 dBd\uff0c \u6c42 dBi\uff1a<br>&#8220;dBi = dBd + 2.15&#8221;<\/li>\n\n\n\n<li>\u5df2\u77e5 dBi\uff0c \u6c42 dBd\uff1a<br>&#8220;dBd = dBi &#8211; 2.15&#8221;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">1\/4\u6ce2\u957f\u5782\u76f4\u63a5\u5730\u5929\u7ebf<\/h2>\n\n\n\n<p><strong><em>\u5782\u76f4\u63a5\u5730\u5929\u7ebf\u7684\u957f\u5ea6\u9009\u62e9<\/em><\/strong>\u5982\u679c\u5782\u76f4\u63a5\u5730\u5929\u7ebf\u5728\u5927\u4f53\u4e3a\u96f6\u4ef0\u89d2\u7684\u6c34\u5e73\u53d1\u5c04\u4e0b\u5177\u6709\u4e3b\u8f90\u5c04\u74e3\uff0c\u5e76\u53ef\u4ee5\u4e0e\u540c\u8f74\u7535\u7f06\u5782\u76f4\u8026\u5408\uff0c\u5176\u6b63\u786e\u7684\u957f\u5ea6\u5e94\u9009\u4e3a\u591a\u5c11\uff1f<strong>\u5176\u7406\u60f3\u957f\u5ea6\u5e94\u9009\u4e3a 1\/4 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