{"id":151,"date":"2024-11-21T12:00:20","date_gmt":"2024-11-21T04:00:20","guid":{"rendered":"https:\/\/www.bihec.com\/selecom\/?p=151"},"modified":"2024-11-21T12:00:20","modified_gmt":"2024-11-21T04:00:20","slug":"%e6%b3%95%e5%9b%bdselecom2g-3g-4g-%e7%9b%b4%e6%94%be%e7%ab%99%e5%be%ae%e5%9e%8b%e4%b8%ad%e7%bb%a7%e5%99%a8gsm900-gsm1800-umts2100","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/selecom\/%e6%b3%95%e5%9b%bdselecom2g-3g-4g-%e7%9b%b4%e6%94%be%e7%ab%99%e5%be%ae%e5%9e%8b%e4%b8%ad%e7%bb%a7%e5%99%a8gsm900-gsm1800-umts2100\/","title":{"rendered":"\u6cd5\u56fdSelecom2G\/3G\/4G \u76f4\u653e\u7ad9\u5fae\u578b\u4e2d\u7ee7\u5668GSM900\/GSM1800\/UMTS2100"},"content":{"rendered":"<h2>\u6cd5\u56fdSeleco<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/m2g-3g-4g-%e7%9b%b4%e6%94%be%e7%ab%99\/\" title=\"View all posts in m2G\/3G\/4G \u76f4\u653e\u7ad9\" target=\"_blank\">m2G\/3G\/4G \u76f4\u653e\u7ad9<\/a><a href=\"https:\/\/www.bihec.com\/selecom\/tag\/%e5%be%ae%e5%9e%8b%e4%b8%ad%e7%bb%a7%e5%99%a8\/\" title=\"View all posts in \u5fae\u578b\u4e2d\u7ee7\u5668\" target=\"_blank\">\u5fae\u578b\u4e2d\u7ee7\u5668<\/a><a href=\"https:\/\/www.bihec.com\/selecom\/tag\/gsm900-gsm1800-umts2100\/\" title=\"View all posts in GSM900\/GSM1800\/UMTS2100\" target=\"_blank\">GSM900\/GSM1800\/UMTS2100<\/a><\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-147 \" src=\"https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eacf64a51b.png\" alt=\"\" width=\"664\" height=\"294\" srcset=\"https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eacf64a51b.png 664w, https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eacf64a51b-300x133.png 300w, https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eacf64a51b-500x221.png 500w\" sizes=\"(max-width: 664px) 100vw, 664px\" \/><\/p>\n<p>\u81ea 1990 \u5e74\u4ee3\u79fb\u52a8\u7535\u8bdd\u7f51\u7edc\u51fa\u73b0\u4ee5\u6765\uff0c<strong>SELECOM \u4e00\u76f4\u5728\u652f\u6301\u8fd0\u8425\u5546\u7684\u90e8\u7f72\u3002<\/strong><\/p>\n<p>SELECOM \u4e3a\u624b\u673a\u63d0\u4f9b\u5168\u7cfb\u5217\u7684<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/%e4%b8%ad%e7%bb%a7%e5%99%a8\/\" title=\"View all posts in \u4e2d\u7ee7\u5668\" target=\"_blank\">\u4e2d\u7ee7\u5668<\/a>\uff1a<\/p>\n<ul>\n<li>2G GSM <a href=\"https:\/\/www.bihec.com\/selecom\/tag\/%e7%9b%b4%e6%94%be%e7%ab%99\/\" title=\"View all posts in \u76f4\u653e\u7ad9\" target=\"_blank\">\u76f4\u653e\u7ad9<\/a><\/li>\n<li>UMTS 3G \u4e2d\u7ee7\u5668<\/li>\n<li>4G LTE \u76f4\u653e\u7ad9<\/li>\n<li>DAS\uff08\u5206\u914d\u5929\u7ebf\u7cfb\u7edf\uff092G\u30013G\u30014G<\/li>\n<li>\u4e2d\u7ee7\u5668 800 MHz\u3001900 MHz\u30011800 MHz\u30012100 MHz\u30012600 MHz<\/li>\n<li>\u529f\u7387\uff1a \u5fae\u76f4\u653e\u7ad9\u3001\u5fae\u578b\u76f4\u653e\u7ad9\u3001\u4e2d\u529f\u7387\u76f4\u653e\u7ad9\u548c\u9ad8\u529f\u7387\u76f4\u653e\u7ad9<\/li>\n<li>\u6280\u672f\uff1a RF\/RF \u4e2d\u7ee7\u5668\uff0c RF\/FO \u4e2d\u7ee7\u5668<\/li>\n<li>\u76d1\u63a7\uff1a\u4e32\u884c\u94fe\u8def\u3001SMS\u3001IP\u3001OMC\u3001\u4e91\u76d1\u63a7<\/li>\n<li>SELECOM \u4e2d\u7ee7\u5668\u89e3\u51b3\u65b9\u6848\u8fd8\u5141\u8bb8\uff1a\n<ul>\n<li>\u5728\u57ce\u5e02\u548c\u519c\u6751\u5730\u533a\u6269\u5c55\u00a0<strong><a href=\"https:\/\/www.bihec.com\/selecom\/tag\/bts-%e7%9a%84%e7%bd%91%e7%bb%9c%e8%a6%86%e7%9b%96%e8%8c%83%e5%9b%b4\/\" title=\"View all posts in BTS \u7684\u7f51\u7edc\u8986\u76d6\u8303\u56f4\" target=\"_blank\">BTS \u7684\u7f51\u7edc\u8986\u76d6\u8303\u56f4<\/a><\/strong><\/li>\n<li>\u586b\u5145\u519c\u6751\u548c\u5c71\u533a\u7684<strong>\u767d\u8272\u533a\u57df<\/strong><\/li>\n<li>\u8986\u76d6\u96a7\u9053\u3001\u8d2d\u7269\u4e2d\u5fc3\u3001\u5730\u4e0b\u505c\u8f66\u573a\u3001\u5546\u4e1a\u5927\u697c\u3001\u516c\u53f8\u68da\u5c4b\u3001\u5de5\u5382\u7b49<strong>\u57fa\u7840\u8bbe\u65bd<\/strong>\u3002<\/li>\n<\/ul>\n<p>\u4e2d\u7ee7\u5668\u7684\u4f18\u70b9\u662f\uff1a<\/p>\n<ul>\n<li>\u4e0e BTS \u76f8\u6bd4<strong>\uff0c\u5b83\u7684<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/%e6%88%90%e6%9c%ac%e8%be%83%e4%bd%8e\/\" title=\"View all posts in \u6210\u672c\u8f83\u4f4e\" target=\"_blank\">\u6210\u672c\u8f83\u4f4e<\/a><\/strong><\/li>\n<li><strong>\u6613\u4e8e\u5b89\u88c5\u548c\u4f7f\u7528<\/strong><\/li>\n<li>\u6781\u9ad8\u7684\u53ef\u9760\u6027<\/li>\n<li>\n<h2>\u591a\u9891\u6bb5\u548c\u591a\u6807\u51c6\u4e2d\u7ee7\u5668<\/h2>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.bihec.com\/selecom\/tag\/digirep\/\" title=\"View all posts in DIGIREP\" target=\"_blank\">DIGIREP<\/a>\u00ae \u6570\u5b57\u76f4\u653e\u7ad9\u7cfb\u5217\u4e0e<strong>\u6240\u6709 GSM 2G\u3001UMTS 3G\u3001LTE 4G \u6807\u51c6<\/strong>\u548c\u9891\u7387\u8303\u56f4\u517c\u5bb9\uff1a<\/p>\n<p>&nbsp;<\/p>\n<table border=\"1\" summary=\"Plans de fr\u00e9quence des r\u00e9p\u00e9teurs TETRA \/ TETRAPOL 400 MHz SELECOM\" width=\"435\" cellspacing=\"1\" cellpadding=\"1\" align=\"center\">\n<tbody>\n<tr>\n<td><\/td>\n<td>\u4e50\u961f<\/td>\n<td>\u4e0a\u884c<\/td>\n<td>\u4e0b\u884c<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"5\">\u6807\u51c6 ETSI<\/td>\n<td>800<\/td>\n<td>832-\u5146\u8d6b 862<\/td>\n<td>791-\u5146\u8d6b 821<\/td>\n<\/tr>\n<tr>\n<td>900<\/td>\n<td>880-915 \u5146\u8d6b<\/td>\n<td>925-960 \u5146\u8d6b<\/td>\n<\/tr>\n<tr>\n<td>1800<\/td>\n<td>1710-1785 \u5146\u8d6b<\/td>\n<td>1805-1880 \u5146\u8d6b<\/td>\n<\/tr>\n<tr>\n<td>2100<\/td>\n<td>1920-1980 \u5146\u8d6b<\/td>\n<td>2110-2170\u5146\u8d6b<\/td>\n<\/tr>\n<tr>\n<td>2600<\/td>\n<td>2500-2570 \u5146\u8d6b<\/td>\n<td>2620-2690 \u5146\u8d6b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>\n<h2>GSM \/ UMTS \/ LTE \u9009\u62e9\u6027\u901a\u9053\u76f4\u653e\u7ad9<\/h2>\n<p>SELECOM \u7684\u00a02G GSM \/ 3G UMTS \/ 4G LTE\u00a0\u4e2d\u7ee7\u5668\u5177\u6709<strong>\u591a\u5b50\u5e26\u6ee4\u6ce2<\/strong>\u529f\u80fd\uff0c\u8fd8\u5141\u8bb8\u60a8\uff1a<\/p>\n<ul>\n<li>\u9009\u62e9\u6700\u591a\u00a0<strong>12 \u4e2a\u9891\u7387\u5b50\u9891\u6bb5<\/strong>\u8fdb\u884c\u91cd\u590d\uff08\u5373\u6d88\u9664\u5176\u4ed6\u5b50\u9891\u6bb5\uff09<\/li>\n<li>\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u72ec\u7acb\u5bf9\u6bcf\u4e2a\u5b50\u9891\u6bb5\u8fdb\u884c\u7f16\u7a0b\uff1a\n<ul>\n<li>\u4e2d\u5fc3\u9891\u7387<\/li>\n<li>\u5e26\u5bbd<\/li>\n<li>\u83b7\u5f97<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u501f\u52a9\u6b64\u529f\u80fd\uff0c\u4e2d\u7ee7\u5668\u53ef\u4ee5\u6d88\u9664\u4e0d\u9700\u8981\u7684\u8f7d\u6ce2\uff0c\u53ea\u91cd\u590d\u6240\u9700\u7684\u8fd0\u7b97\u7b26<\/li>\n<li>\n<h2>\u201cUL Standby\u201d\u529f\u80fd<\/h2>\n<p>\u4e3a\u4e86\u5141\u8bb8\u5728\u7ed9\u5b9a\u533a\u57df\u90e8\u7f72\u6700\u5927\u6570\u91cf\u7684 RF\/RF \u4e2d\u7ee7\u5668\uff0c\u8fde\u63a5\u5230\u540c\u4e00\u4e2a\u57fa\u7ad9\uff0c\u5fc5\u987b\u5177\u6709\u4e00\u4e2a\u529f\u80fd\uff0c\u5f53\u4e2d\u7ee7\u5668\u6ca1\u6709\u88ab\u901a\u4fe1\u8bf7\u6c42\u65f6\uff0c\u8be5\u529f\u80fd\u4f1a\u5207\u65ad\u4e0a\u884c\u4fe1\u9053\u7684\u4f20\u8f93\u3002<\/p>\n<p>\u4e8b\u5b9e\u4e0a\uff0cRF\/RF \u4e2d\u7ee7\u5668\u5373\u4f7f\u4e0d\u91cd\u65b0\u53d1\u5c04\u8f7d\u6ce2\uff0c\u4e5f\u4f1a\u53d1\u56de\u975e\u5e38\u4f4e\u7684\u70ed\u566a\u58f0\u80cc\u666f\u3002\u4f46\u662f\uff0c\u6240\u6709\u8fd9\u4e9b\u5c0f\u566a\u58f0\u7684\u603b\u548c\u4f1a\u4ea7\u751f\u4e00\u79cd\u566a\u58f0\u529f\u7387\uff0c\u8fd9\u79cd\u566a\u58f0\u529f\u7387\u4f1a\u4f7f\u57fa\u7ad9\u53d8\u5f97\u4e0d\u654f\u611f\uff0c\u4ece\u800c\u9650\u5236 RF\/RF \u4e2d\u7ee7\u5668\u7684\u4f7f\u7528\u3002<\/p>\n<p>\u539f\u7406\u975e\u5e38\u7b80\u5355\uff1a<\/p>\n<ul>\n<li>\u5728\u4e2d\u7ee7\u5668\u8986\u76d6\u7684\u533a\u57df\u5185\uff0c\u79fb\u52a8\u7535\u8bdd\u4e0d\u8bf7\u6c42\u901a\u4fe1 \u21d2 UL \u9891\u9053\u5904\u4e8e\u5f85\u673a\u72b6\u6001\u21d2\u00a0<strong>\u4e2d\u7ee7\u5668\u4e0d\u518d\u53d1\u51fa\u566a\u97f3<\/strong><\/li>\n<li>\u5728\u4e2d\u7ee7\u5668\u8986\u76d6\u7684\u533a\u57df\u5185\uff0c\u79fb\u52a8\u8bbe\u5907\u4e0d\u8bf7\u6c42\u901a\u4fe1\u21d2UL \u901a\u9053\u5728\u51e0\u6beb\u79d2\u5185\u6295\u5165\u8fd0\u884c\u21d2<strong>\u786e\u4fdd\u901a\u4fe1<\/strong><\/li>\n<li>\u8bbe\u5b9a\u7684\u65f6\u95f4\u540e\uff0c\u4e0d\u518d\u4f7f\u7528\u4e2d\u7ee7\u5668\u21d2UL \u901a\u9053\u91cd\u65b0\u7f6e\u4e8e\u5f85\u673a\u72b6\u6001\u21d2<strong>\u4e2d\u7ee7\u5668\u4e0d\u518d\u53d1\u51fa\u566a\u58f0<\/strong><\/li>\n<li>\n<h2>\u201cUL Standby\u201d\u529f\u80fd<\/h2>\n<p>\u4e3a\u4e86\u5141\u8bb8\u5728\u7ed9\u5b9a\u533a\u57df\u90e8\u7f72\u6700\u5927\u6570\u91cf\u7684 RF\/RF \u4e2d\u7ee7\u5668\uff0c\u8fde\u63a5\u5230\u540c\u4e00\u4e2a\u57fa\u7ad9\uff0c\u5fc5\u987b\u5177\u6709\u4e00\u4e2a\u529f\u80fd\uff0c\u5f53\u4e2d\u7ee7\u5668\u6ca1\u6709\u88ab\u901a\u4fe1\u8bf7\u6c42\u65f6\uff0c\u8be5\u529f\u80fd\u4f1a\u5207\u65ad\u4e0a\u884c\u4fe1\u9053\u7684\u4f20\u8f93\u3002<\/p>\n<p>\u4e8b\u5b9e\u4e0a\uff0cRF\/RF \u4e2d\u7ee7\u5668\u5373\u4f7f\u4e0d\u91cd\u65b0\u53d1\u5c04\u8f7d\u6ce2\uff0c\u4e5f\u4f1a\u53d1\u56de\u975e\u5e38\u4f4e\u7684\u70ed\u566a\u58f0\u80cc\u666f\u3002\u4f46\u662f\uff0c\u6240\u6709\u8fd9\u4e9b\u5c0f\u566a\u58f0\u7684\u603b\u548c\u4f1a\u4ea7\u751f\u4e00\u79cd\u566a\u58f0\u529f\u7387\uff0c\u8fd9\u79cd\u566a\u58f0\u529f\u7387\u4f1a\u4f7f\u57fa\u7ad9\u53d8\u5f97\u4e0d\u654f\u611f\uff0c\u4ece\u800c\u9650\u5236 RF\/RF \u4e2d\u7ee7\u5668\u7684\u4f7f\u7528\u3002<\/p>\n<p>\u539f\u7406\u975e\u5e38\u7b80\u5355\uff1a<\/p>\n<ul>\n<li>\u5728\u4e2d\u7ee7\u5668\u8986\u76d6\u7684\u533a\u57df\u5185\uff0c\u79fb\u52a8\u7535\u8bdd\u4e0d\u8bf7\u6c42\u901a\u4fe1 \u21d2 UL \u9891\u9053\u5904\u4e8e\u5f85\u673a\u72b6\u6001\u21d2\u00a0<strong>\u4e2d\u7ee7\u5668\u4e0d\u518d\u53d1\u51fa\u566a\u97f3<\/strong><\/li>\n<li>\u5728\u4e2d\u7ee7\u5668\u8986\u76d6\u7684\u533a\u57df\u5185\uff0c\u79fb\u52a8\u8bbe\u5907\u4e0d\u8bf7\u6c42\u901a\u4fe1\u21d2UL \u901a\u9053\u5728\u51e0\u6beb\u79d2\u5185\u6295\u5165\u8fd0\u884c\u21d2<strong>\u786e\u4fdd\u901a\u4fe1<\/strong><\/li>\n<li>\u8bbe\u5b9a\u7684\u65f6\u95f4\u540e\uff0c\u4e0d\u518d\u4f7f\u7528\u4e2d\u7ee7\u5668\u21d2UL \u901a\u9053\u91cd\u65b0\u7f6e\u4e8e\u5f85\u673a\u72b6\u6001\u21d2<strong>\u4e2d\u7ee7\u5668\u4e0d\u518d\u53d1\u51fa\u566a\u58f0<\/strong><\/li>\n<li>\n<h2>\u6d88\u9664 3G\/4G \u56de\u58f0<\/h2>\n<p>SELECOM DIGIREP\u00ae \u4e2d\u7ee7\u5668\u914d\u5907\u4e86\u6700\u65b0\u7684\u6570\u5b57\u6280\u672f\uff0c\u5305\u62ec\u56de\u58f0\u6d88\u9664\u3002<\/p>\n<p>\u4e2d\u7ee7\u5668\u5e94\u4ee5\u4e0e\u63a5\u6536\u5929\u7ebf\u4e0a\u63a5\u6536\u5230\u7684\u4fe1\u53f7\u76f8\u540c\u7684\u9891\u7387\u5728\u53d1\u5c04\u5929\u7ebf\u4e0a\u91cd\u4f20\u76f8\u540c\u7684\u4fe1\u53f7\u3002\u4ece\u7269\u7406\u89d2\u5ea6\u6765\u770b\uff0c\u53ea\u8981\u5929\u7ebf\u4e4b\u95f4\u6709\u5f88\u597d\u7684\u9694\u79bb\uff0c\u53cd\u9988\u6548\u5e94\uff08\u9ea6\u514b\u98ce\u9760\u8fd1\u626c\u58f0\u5668\u7684\u53cd\u9988\u6548\u5e94\uff09\u662f\u4e0d\u53ef\u907f\u514d\u7684\u3002<\/p>\n<p>\u4e3a\u4e86\u4e0d\u589e\u52a0\u5b89\u88c5\u6210\u672c\u5e76\u5728\u53d1\u5c04\u5929\u7ebf\u548c\u63a5\u6536\u5929\u7ebf\u4e4b\u95f4\u5b9e\u73b0\u826f\u597d\u7684\u9694\u79bb\uff0c<strong>\u8be5\u89e3\u51b3\u65b9\u6848\u662f\u57fa\u4e8e\u8f6f\u4ef6\u89e3\u51b3\u65b9\u6848\u7684\u6570\u5b57\u56de\u58f0\u6d88\u9664<\/strong>\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong>SELECOM \u56de\u58f0\u6d88\u9664\u5668\u5141\u8bb8\u5b89\u88c5\u65f6\uff0c\u7edd\u7f18\u5c42\u6bd4\u4e2d\u7ee7\u5668\u7684\u589e\u76ca\u4f4e 15 dB\u3002<\/strong><\/li>\n<li>\n<h2>\u9891\u8c31\u5206\u6790\u4eea\u548c\u7edf\u8ba1\u6570\u636e<\/h2>\n<p>\u7531\u4e8e\u5176\u6570\u5b57\u529f\u80fd\uff0cDIGIREP\u00ae \u5141\u8bb8\u60a8\u8fdc\u7a0b\u4e86\u89e3\u8bbe\u5907\u7684\u5149\u8c31\u8f93\u51fa\u6027\u80fd\uff1a<\/p>\n<ul>\n<li>\u5728 Web \u754c\u9762\u4e0a\uff0c\u8f93\u51fa\u9891\u8c31\u662f\u5b9e\u65f6\u53ef\u7528\u7684<\/li>\n<li>\u53c2\u6570\u5982\u4e0b\uff1atraffic\u3001BTS ID \u7b49\u2026<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p id=\"BTQpvWf\"><img decoding=\"async\" loading=\"lazy\" width=\"337\" height=\"380\" class=\"alignnone size-full wp-image-152 \" src=\"https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eaf895df96.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eaf895df96.png 337w, https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eaf895df96-266x300.png 266w\" sizes=\"(max-width: 337px) 100vw, 337px\" \/><\/p>\n<p>\u5fae\u578b\u4e2d\u7ee7\u5668\u662f\u4e00\u79cd\u65e0\u7ebf\u7535\u901a\u4fe1\u4ea7\u54c1\uff0c\u7528\u4e8e\u6539\u5584GSM900\/GSM1800\u4e2d\u8702\u7a9d\u65e0\u7ebf\u7535\u7cfb\u7edf\u7684\u65e0\u7ebf\u7535\u8986\u76d6\u8303\u56f4\/UMTS\u9891\u5e26\u3002<br \/>\n\u8be5\u8bbe\u5907\u4e3b\u8981\u7528\u4e8e\u4e3a\u5546\u5e97\u3001\u5c55\u5385\u3001\u5f53\u5730\u5546\u4e1a\u3001\u533b\u7597\u529e\u516c\u5ba4\u7b49\u4f4e\u5bb9\u91cf\u573a\u6240\u63d0\u4f9b\u5ba4\u5185\u8986\u76d6<\/p>\n<p>\u6839\u636e\u5ba2\u6237\u8981\u6c42\u5e76\u4f18\u5316\u8986\u76d6\u6210\u672c\uff0c<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/selecom\/\" title=\"View all posts in Selecom\" target=\"_blank\">Selecom<\/a>\u5728\u7b80\u5355\u6216\u53cc\u76d2\u5b50\u4e2d\u63d0\u4f9b\u5168\u7cfb\u5217\u7684\u5355\u9891\u6216\u53cc\u9891\u5fae\u578b\u4e2d\u7ee7\u5668\u3002<br \/>\n\u8986\u76d6\u8303\u56f4\u53ef\u4ee5\u901a\u8fc7\u96c6\u6210\u5929\u7ebf\uff08\u53ef\u9009\uff09\u6216\u5916\u90e8\u5206\u914d\u7cfb\u7edf\u63d0\u4f9b\u3002\u5fae\u578b\u4e2d\u7ee7\u5668\u63d0\u4f9b\u4e86\u901a\u8fc7\u53ef\u9009\u6a21\u5757\u8fdb\u884c\u77ed\u4fe1\u7ba1\u7406\u7684\u53ef\u80fd\u6027\u3002<\/p>\n<p id=\"XfcYCfx\"><img decoding=\"async\" loading=\"lazy\" width=\"712\" height=\"471\" class=\"alignnone size-full wp-image-153 \" src=\"https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eafb0cac5f.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eafb0cac5f.png 712w, https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eafb0cac5f-300x198.png 300w, https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eafb0cac5f-500x331.png 500w\" sizes=\"(max-width: 712px) 100vw, 712px\" \/><\/p>\n<p id=\"ZlWxeAM\"><img decoding=\"async\" loading=\"lazy\" width=\"757\" height=\"590\" class=\"alignnone size-full wp-image-154 \" src=\"https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eafc8bba6e.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eafc8bba6e.png 757w, https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eafc8bba6e-300x234.png 300w, https:\/\/www.bihec.com\/selecom\/wp-content\/uploads\/sites\/1402\/2024\/11\/img_673eafc8bba6e-500x390.png 500w\" sizes=\"(max-width: 757px) 100vw, 757px\" \/><\/p>\n<br><div class=\"tagcloud\"><a href=\"https:\/\/www.bihec.com\/selecom\/tag\/2g-3g-4g\/\" class=\"tag-cloud-link tag-link-0 tag-link-position-1\" style=\"font-size: 22pt;\" aria-label=\"2G\/3G\/4G (2\u4e2a\u9879\u76ee)\">2G\/3G\/4G<\/a>\n<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/bts-%e7%9a%84%e7%bd%91%e7%bb%9c%e8%a6%86%e7%9b%96%e8%8c%83%e5%9b%b4\/\" class=\"tag-cloud-link tag-link-1 tag-link-position-2\" style=\"font-size: 8pt;\" aria-label=\"BTS \u7684\u7f51\u7edc\u8986\u76d6\u8303\u56f4 (1\u4e2a\u9879\u76ee)\">BTS \u7684\u7f51\u7edc\u8986\u76d6\u8303\u56f4<\/a>\n<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/gsm900-gsm1800-umts2100\/\" class=\"tag-cloud-link tag-link-2 tag-link-position-3\" style=\"font-size: 8pt;\" aria-label=\"GSM900\/GSM1800\/UMTS2100 (1\u4e2a\u9879\u76ee)\">GSM900\/GSM1800\/UMTS2100<\/a>\n<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/%e5%be%ae%e5%9e%8b%e4%b8%ad%e7%bb%a7%e5%99%a8\/\" class=\"tag-cloud-link tag-link-3 tag-link-position-4\" style=\"font-size: 22pt;\" aria-label=\"\u5fae\u578b\u4e2d\u7ee7\u5668 (2\u4e2a\u9879\u76ee)\">\u5fae\u578b\u4e2d\u7ee7\u5668<\/a>\n<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/%e6%88%90%e6%9c%ac%e8%be%83%e4%bd%8e\/\" class=\"tag-cloud-link tag-link-4 tag-link-position-5\" style=\"font-size: 8pt;\" aria-label=\"\u6210\u672c\u8f83\u4f4e (1\u4e2a\u9879\u76ee)\">\u6210\u672c\u8f83\u4f4e<\/a>\n<a href=\"https:\/\/www.bihec.com\/selecom\/tag\/%e7%9b%b4%e6%94%be%e7%ab%99\/\" class=\"tag-cloud-link tag-link-5 tag-link-position-6\" style=\"font-size: 22pt;\" aria-label=\"\u76f4\u653e\u7ad9 (2\u4e2a\u9879\u76ee)\">\u76f4\u653e\u7ad9<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>\u6cd5\u56fdSelecom2G\/3G\/4G \u76f4\u653e\u7ad9\u5fae\u578b\u4e2d\u7ee7\u5668GSM900\/GSM1800\/UMTS2100 \u81ea 1990 \u5e74\u4ee3\u79fb\u52a8\u7535\u8bdd\u7f51\u7edc\u51fa\u73b0\u4ee5\u6765\uff0cSELECOM \u4e00\u76f4\u5728\u652f\u6301\u8fd0\u8425\u5546\u7684\u90e8\u7f72\u3002 <\/p>\n","protected":false},"author":32,"featured_media":152,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[]},"categories":[3],"tags":[7,13,12,11,14,10],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6cd5\u56fdSelecom2G\/3G\/4G \u76f4\u653e\u7ad9\u5fae\u578b\u4e2d\u7ee7\u5668GSM900\/GSM1800\/UMTS2100 - Selecom 2G3G4G \u76f4\u653e\u7ad9 TETRA TETRAPOL \u76f4\u653e\u7ad9 GSM-R \u76f4\u653e\u7ad9 DVB-T-T2 ISDB-T \u76f4\u653e\u7ad9 \u89c6\u89c9 \u589e\u538b\u5668 \u5c4b\u9762\u5de5\u7a0b<\/title>\n<meta name=\"description\" content=\"\u5f20\u7ecf\u7406 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