{"id":127,"date":"2017-08-07T07:46:14","date_gmt":"2017-08-06T23:46:14","guid":{"rendered":"http:\/\/bg3mdo.ts-ham.com\/?p=127"},"modified":"2017-08-10T20:52:11","modified_gmt":"2017-08-10T12:52:11","slug":"%e7%ae%80%e8%bf%b0%e6%95%b0%e5%ad%97%e8%af%ad%e9%9f%b3%e5%af%b9%e8%ae%b2%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"http:\/\/bg3mdo.ts-ham.com\/?p=127","title":{"rendered":"\u7b80\u8ff0\u6570\u5b57\u8bed\u97f3\u5bf9\u8bb2\u6a21\u5f0f"},"content":{"rendered":"<p>\u6839\u636eMike Myer, Mark Kleine\u5e7b\u706f\u7247\uff0c \u6587\u5b57\u5185\u5bb9\u7531BG3MDO\u64b0\u5199<\/p>\n<p>Text written by BG3MDO, based on Mike Myer and Mark Kleine&#8217;s slides.<\/p>\n<h3>\u6982\u8ff0<\/h3>\n<p>\u4e00\u822c\u800c\u8a00\uff0c\u4e00\u4e2a\u4f20\u7edf\u7684\u5bf9\u8bb2\u7cfb\u7edf\u7531\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u7ec4\u6210\uff0c\u5728\u53d1\u9001\u7aef\u6a21\u62df\u7684\u8bed\u97f3\u4fe1\u53f7\u88ab\u52a0\u8f7d\u5230\u9ad8\u9891\u4fe1\u53f7\u4e0a\uff08\u8c03\u5236\uff09\u5f97\u4ee5\u5411\u7a7a\u95f4\u53d1\u5c04\uff0c\u800c\u63a5\u6536\u7aef\u518d\u5c06\u63a5\u6536\u5230\u7684\u9ad8\u9891\u4fe1\u53f7\u8fd8\u539f\uff08\u89e3\u8c03\uff09\u6210\u8bed\u97f3\u4fe1\u53f7\u3002<\/p>\n<p>\u76f8\u5bf9\u800c\u8a00\uff0c\u5728\u6570\u5b57\u8bed\u97f3\u5bf9\u8bb2\u7cfb\u7edf\u91cc\uff0c\u53d1\u9001\u7aef\u4f7f\u7528\u6a21\u62df\u6570\u5b57\u8f6c\u6362\u5668\uff08ADC\uff09\u5c06\u6a21\u62df\u7684\u8bed\u97f3\u4fe1\u53f7\u8f6c\u5316\u4e3a\u6570\u5b57\u4fe1\u53f7\uff0c\u7ecf\u8fc7\u538b\u7f29\u5904\u7406\u540e\u7684\u6570\u5b57\u4fe1\u53f7\u518d\u8c03\u5236\u5230\u9ad8\u9891\u4fe1\u53f7\u4e0a\uff0c\u5728\u63a5\u6536\u7aef\uff0c\u63a5\u6536\u5230\u7684\u5c04\u9891\u4fe1\u53f7\u88ab\u89e3\u8c03\u6210\u4e3a\u6570\u5b57\u4fe1\u53f7\uff0c\u518d\u7ecf\u8fc7\u89e3\u538b\u7f29\u7b49\u5904\u7406\u8fd8\u539f\u6210\u539f\u59cb\u6570\u5b57\u8bed\u97f3\u4fe1\u53f7\uff0c\u7ecf\u8fc7\u6570\u5b57\u6a21\u62df\u8f6c\u6362\u5668\uff08DAC\uff09\u53d8\u6362\u4e3a\u4eba\u4eec\u53ef\u4ee5\u6536\u542c\u7684\u6a21\u62df\u8bed\u97f3\u4fe1\u53f7\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-167 aligncenter\" src=\"http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-10_12-51-58_128721-224x300.png\" alt=\"\" width=\"224\" height=\"300\" srcset=\"http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-10_12-51-58_128721-224x300.png 224w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-10_12-51-58_128721.png 366w\" sizes=\"(max-width: 224px) 100vw, 224px\" \/><\/p>\n<p>\u5047\u5b9a\u6240\u6709\u7684\u6570\u636e\u90fd\u88ab\u5f88\u597d\u7684\u63a5\u6536\uff0c\u6570\u5b57\u7cfb\u7edf\u53ef\u4ee5\u63d0\u4f9b\u66f4\u7eaf\u51c0\u7684\u8bed\u97f3\u4fe1\u53f7\u3002\u56e0\u4e3a\u662f\u6570\u5b57\u7cfb\u7edf\uff0c\u66f4\u591a\u7684\u4fe1\u606f\u53ef\u4ee5\u88ab\u52a0\u8f7d\u5230\u9ad8\u9891\u4fe1\u53f7\u91cc\uff0c\u4f7f\u5f97\u6570\u5b57\u7cfb\u7edf\u4e0d\u4ec5\u80fd\u4f20\u9001\u8bed\u97f3\u8fd8\u80fd\u4f20\u9001\u591a\u79cd\u6570\u636e\uff0c\u540c\u65f6\u6570\u5b57\u4fe1\u53f7\u4e5f\u5bb9\u6613\u88ab\u7ea0\u9519\uff0c\u6240\u4ee5\u6570\u5b57\u7cfb\u7edf\u5177\u6709\u66f4\u597d\u7684\u901a\u4fe1\u8ddd\u79bb\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u6570\u5b57\u7cfb\u7edf\u8fd8\u66f4\u8282\u7701\u9891\u8c31\u8d44\u6e90\uff0c\u66f4\u7701\u7535\u3002<\/p>\n<h3>\u5173\u952e\u6280\u672f<\/h3>\n<p>AMBE+ \u58f0\u7801\u5668\uff0c<strong>\u58f0\u7801\u5668<\/strong> (Vocoder \u6216Voice Codec) \u7684\u4e00\u79cd\uff0c\u7531DVSI\u00a0 (Digital Voice System, Inc) \u5f00\u53d1\uff0c\u6b64\u6280\u672f\u62e5\u6709\u4e13\u5229\uff0c\u4e14\u53d7\u4e13\u5229\u4fdd\u62a4\u3002\u58f0\u7801\u5668\u7684\u4f5c\u7528\u662f\u5c06ADC\u8f6c\u6362\u7684\u8bed\u97f3\u6570\u636e\u8fdb\u884c\u538b\u7f29\uff0c\u4f7f\u5176\u6570\u636e\u91cf\u66f4\u5c0f\uff0c\u5728\u4f20\u9001\u65f6\u5360\u7528\u66f4\u5c11\u7684\u9891\u8c31\u8d44\u6e90\uff0c\u4ee5\u6ee1\u8db3\u5bf9\u8bb2\u673a\u9891\u8c31\u89c4\u5212\u7684\u8981\u6c42\u3002\u9664\u4e86\u538b\u7f29\uff0c\u58f0\u7801\u5668\u8fd8\u62c5\u4efb\u89e3\u538b\u7f29\u5de5\u4f5c\uff0c\u5c06\u538b\u7f29\u7684\u6570\u636e\u518d\u6b21\u8fd8\u539f\u4e3aDAC\u53ef\u4ee5\u8f6c\u5316\u7684\u8bed\u97f3\u4fe1\u53f7\u3002\u56e0\u6b64\u58f0\u7801\u5668\u9700\u8981\u540c\u65f6\u5b58\u5728\u4e8e\u6536\u53d1\u7aef\u3002<\/p>\n<p><em>D-STAR \u662f\u6700\u65e9\u7684\u9488\u5bf9\u4e1a\u4f59\u65e0\u7ebf\u7535\u6240\u63d0\u51fa\u7684\u6570\u5b57\u5bf9\u8bb2\u6a21\u5f0f\u3002\u8bed\u97f3\u7684\u538b\u7f29\u91c7\u7528\u4e86AMBE+\u3002<\/em><\/p>\n<p><em>DMR \u548c C4FM \u4f7f\u7528\u4e86\u8f83\u4e3a\u65b0\u7248\u672c\u7684\u58f0\u7801\u5668 AMBE+2\uff0c\u800cAMBE+2\u5411\u524d\u517c\u5bb9AMBE+\u58f0\u7801\u5668<\/em>\u3002<\/p>\n<p><strong>\u8c03\u5236\u65b9\u5f0f<\/strong>\uff0c\u901a\u8fc7\u4f55\u79cd\u65b9\u5f0f\u5c06\u6570\u636e\u643a\u5e26\u5230\u9ad8\u9891\u4fe1\u53f7\u4e0a\u3002\u4f8b\u5982GMSK, \u9ad8\u65af\u6700\u5c0f\u79fb\u9891\u952e\u63a7\uff0c4FSK\uff0c\u56db\u7ea7\u79fb\u9891\u952e\u63a7\uff0c C4FM\uff0c\u8fde\u7eed\u56db\u7ea7\u9891\u7387\u8c03\u5236\u3002<\/p>\n<p><strong>\u590d\u7528\u65b9\u5f0f<\/strong>\uff0c\u591a\u8def\u901a\u4fe1\u5b9e\u73b0\u65b9\u5f0f\uff0cFDMA\u9891\u5206\u590d\u7528\uff0cTDMA, \u65f6\u5206\u590d\u7528\u3002<\/p>\n<p><strong>\u524d\u5411\u7ea0\u9519\u00a0<\/strong>(FEC, Forward Error Correction), \u00a0\u589e\u52a0\u6570\u636e\u901a\u8baf\u53ef\u9760\u5ea6\u7684\u65b9\u6cd5\uff0c\u5229\u7528\u989d\u5916\u6570\u636e\u8fdb\u884c\u4f20\u8f93\u5197\u4f59\uff0c\u5f53\u4f20\u8f93\u4e2d\u51fa\u73b0\u9519\u8bef\uff0c\u5141\u8bb8\u63a5\u6536\u5668\u518d\u5229\u7528\u5197\u4f59\u6570\u636e\u518d\u6784\u5efa\u6570\u636e\u3002<\/p>\n<h3>\u6570\u636e\u683c\u5f0f<\/h3>\n<p>\u548c\u6240\u6709\u7684\u6570\u4f20\u6a21\u5f0f\u4e00\u6837\uff0c\u6570\u5b57\u5bf9\u8bb2\u673a\u7684\u6570\u636e\u662f\u4ee5\u6570\u636e\u5e27\u7684\u5f62\u5f0f\u4f20\u9001\u7684\uff0c\u6570\u636e\u5e27\u4e5f\u53ef\u4ee5\u770b\u505a\u662f\u6570\u4f20\u4e2d\u6bd4\u8f83\u5c0f\u7684\u6570\u636e\u5757\u5355\u4f4d\uff0c\u6216\u8005\u8bf4\u662f\u6570\u636e\u7684\u683c\u5f0f\uff0c\u534f\u8bae\u3002 \u4e0d\u540c\u6570\u5b57\u5bf9\u8bb2\u6a21\u5f0f\uff0c\u9664\u4e86\u53ef\u80fd\u4f7f\u7528\u4e0d\u4e00\u6837\u7684\u8bed\u97f3\u538b\u7f29\u529e\u6cd5\uff0c\u58f0\u7801\u5668\u3002\u5176\u6570\u636e\u5e27\u7684\u5b9a\u4e49\u4e5f\u4e0d\u540c\u3002\u4e0b\u9762\u5c55\u793a\u4e86\u4e09\u79cd\u4e0d\u540c\u6570\u5b57\u5bf9\u8bb2\u6a21\u5f0f\u7684\u6570\u636e\u5e27\u7ed3\u6784\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-129 aligncenter\" src=\"http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-06_23-55-44_085106-300x167.png\" alt=\"\" width=\"624\" height=\"347\" srcset=\"http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-06_23-55-44_085106-300x167.png 300w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-06_23-55-44_085106-768x426.png 768w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-06_23-55-44_085106-600x333.png 600w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-06_23-55-44_085106.png 861w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u53ef\u4ee5\u770b\u51faD-STAR\uff0c\u547c\u53f7\u4fe1\u606f\u88ab\u643a\u5e26\u5728\u5e27\u5934\uff0c\u8bed\u97f3\u6570\u636e\u5728\u5e27\u5c3e\u90e8\u4ee572\u5b57\u8282\uff0c24\u5b57\u8282\u4ea4\u66ff\u5c01\u5165\u4e00\u5e27\u3002DMR\u4e5f\u7c7b\u4f3c\uff0c\u4f46DMR\u7684\u540c\u6b65\u4fe1\u606f\u51fa\u73b0\u5728\u6570\u636e\u548c\u8bed\u97f3\u4e2d\uff0c\u6bcf\u4e2a\u540c\u6b65\u95f4\u969430\u6beb\u79d2\uff0c\u6bcf\u4e00\u5e27\u5305\u542b330\u6beb\u79d2\u957f\u7684\u8bed\u97f3\u6570\u636e\u3002\u800c\u516b\u91cd\u6d32\u7684Fusion\uff0c\u6b63\u597d\u662f\u8bed\u97f3\u6570\u636e\u4ea4\u66ff\u5728\u4e00\u5e27\u4e2d\uff0c\u6bcf\u4e00\u5e27660\u4e2a\u6bd4\u7279\u957f\u3002<\/p>\n<h3>\u4e3b\u6d41\u6a21\u5f0f\u6280\u672f\u53c2\u6570\u5bf9\u6bd4<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-134 aligncenter\" src=\"http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-32-12_971280-300x152.png\" alt=\"\" width=\"622\" height=\"315\" srcset=\"http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-32-12_971280-300x152.png 300w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-32-12_971280-768x390.png 768w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-32-12_971280-1024x520.png 1024w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-32-12_971280-600x305.png 600w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-32-12_971280.png 1145w\" sizes=\"(max-width: 622px) 100vw, 622px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-135 aligncenter\" src=\"http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-37-36_772065-300x205.png\" alt=\"\" width=\"619\" height=\"422\" srcset=\"http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-37-36_772065-300x205.png 300w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-37-36_772065-768x525.png 768w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-37-36_772065-600x410.png 600w, http:\/\/bg3mdo.ts-ham.com\/wp-content\/uploads\/2017\/08\/2017-08-07_09-37-36_772065.png 970w\" sizes=\"(max-width: 619px) 100vw, 619px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h4>D-STAR<\/h4>\n<p>D-STAR\u662f\u4e00\u4e2a\u5f00\u653e\u6807\u51c6\uff0c\u5b83\u7531JARL (Japan Amateur Radio League), \u65e5\u672c\u4e1a\u4f59\u65e0\u7ebf\u7535\u534f\u4f1a\u5236\u5b9a\u3002D-STAR\u6807\u51c6\u4e8e2001\u5e74\u6b63\u5f0f\u53d1\u5e03\uff0c\u4e8e2004\u5e74\uff0c\u65e5\u672cICOM\u516c\u53f8\u5f00\u59cb\u9075\u5faa\u8fd9\u4e00\u6807\u51c6\u751f\u4ea7D-STAR\u6570\u5b57\u5bf9\u8bb2\u8bbe\u5907\uff0c\u5176\u751f\u4ea7\u7684\u8bbe\u5907\u6db5\u76d6\u5e38\u7528\u76842\u7c73\uff0c70\u5398\u7c73\uff0c\u548c23\u5398\u7c73\u7b49\u6ce2\u6bb5\u3002\u8fd1\u6765\uff0c\u65e5\u672c\u5efa\u6b66\u516c\u53f8\u4e5f\u5f00\u59cb\u751f\u4ea7\u7b26\u5408D-STAR\u6807\u51c6\u7684\u624b\u6301\u6570\u5b57\u7535\u53f0\u3002<\/p>\n<p>D-STAR\u4f7f\u7528AMBE+\u58f0\u7801\u5668\uff0c\u8bed\u97f3\u6570\u636e\u6d41\u4e3a3000 bps, \u5728\u4fe1\u9053\u4e2d\uff0c\u989d\u5916\u7684 1200 bps \u524d\u5411\u7ea0\u9519\u6570\u636e\u88ab\u52a0\u5165\uff0c\u6545DSTAR\u7684\u8bed\u97f3\u6d41\u4e3a 4800 bps\u3002\u5728D-STAR\u4e2d\uff0c\u989d\u5916\u4e00\u4e2a1200bps \u901f\u7387\u901a\u9053\u53ef\u4ee5\u88ab\u7528\u4e8e\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<p>D-STAR \u652f\u6301 GPS\uff0cGPS\u4fe1\u606f\u53ef\u88ab\u643a\u5e26\u5728\u901a\u4fe1\u5e27\u4e2d\uff0cD-STAR \u7b26\u5408FCC ID\u7684\u8981\u6c42\u3002<\/p>\n<h4>\u516b\u91cd\u6d32 System Fusion<\/h4>\n<p>System Fusion \u7531\u516b\u91cd\u6d32\u516c\u53f8\u5f00\u53d1\u5236\u5b9a\u7684\uff0c\u671f\u95f4\u501f\u9274\u4e86P.25\u7684\u5927\u91cf\u6807\u51c6\uff0cSystem Fusion \u53c8\u88ab\u79f0\u4e3a C4FM\u3002Fusion \u4e2d\u6587\u542b\u4e49\u4e3a\u201c\u878d\u5408\u201d\u4e4b\u610f\uff0c\u516b\u91cd\u6d32\u4e2d\u7ee7\u7684\u6700\u5927\u7279\u8272\u5c31\u662f\u652f\u6301\u6a21\u62df\u548c\u6570\u5b57\u6df7\u5408\u6a21\u5f0f\u3002System Fusion \u4f7f\u7528 AMBE+2 \u58f0\u7801\u5668\uff0c\u5e76\u63d0\u4f9b\u4e86\u591a\u79cd\u6570\u5b57\u6a21\u5f0f\u3002\u5982\uff0c DN (Digital Narrow), \u6570\u5b57\u7a84\u5e26\uff0c\u6b64\u6a21\u5f0f\u4e0b\u652f\u6301\u8bed\u97f3\u548c\u6570\u636e\u540c\u65f6\u4f20\u9012\u3002 DW (Digital Wide), \u6570\u5b57\u5bbd\u5e26\uff0c\u6b64\u6a21\u5f0f\u4e0b\uff0c\u5168\u90e8\u4f20\u8f93\u5e26\u5bbd\u5c06\u88ab\u7528\u4e8e\u8bed\u97f3\u4f20\u8f93\uff0c\u7528\u4e8e\u589e\u5f3a\u8bed\u97f3\u6e05\u6670\u5ea6\u3002\u9ad8\u901f\u6570\u636e\uff0c \u5728\u6b64\u6a21\u5f0f\u4e0b\u6570\u636e\u4f20\u8f93\u901f\u7387\u4e3a 9600pbs, \u7528\u4e8e\u4f20\u8f93\u56fe\u7247\uff0c \u6587\u5b57\u7b49\u6570\u636e\u3002\u5f53\u88ab\u9009\u62e9\u4e3a\u81ea\u52a8\u6a21\u5f0f\u65f6\uff0cSystem Fusion\u53ef\u4ee5\u81ea\u52a8\u8bc6\u522b\u6a21\u62df\u6216\u6570\u5b57\u6a21\u5f0f\uff0c\u5e76\u8fdb\u884c\u81ea\u52a8\u6a21\u5f0f\u8f6c\u6362\u3002<\/p>\n<p>\u76ee\u524d\u516b\u91cd\u6d32\u662f\u552f\u4e00\u7684System Fusion\u5236\u9020\u5546\uff0c\u5e76\u4e14\u6b64\u6807\u51c6\u7531\u516b\u91cd\u6d32\u6240\u62e5\u6709\u3002System Fusion \u5185\u5efaAPRS\uff0c\u4e5f\u80fd\u652f\u6301\u4f20\u7edfAPRS\u64cd\u4f5c\u3002System Fusion \u7b26\u5408FCC ID\u7684\u8981\u6c42\u3002<\/p>\n<h4>DMR<\/h4>\n<p>DMR (Digital Mobile Radio) \u7531ETSI (European Telecommunications Standards Institute &#8211; \u6b27\u6d32\u7535\u4fe1\u6807\u51c6\u534f\u4f1a)\u4e3b\u6301\u5f00\u53d1\uff0c \u5e76\u76ee\u6807\u5546\u4e1a\u5316\u5e94\u7528\uff0c\u5176\u7b2c\u4e00\u4e2a\u6807\u51c6\u4e8e2005\u5e74\u516c\u5e03\u3002DMR \u4f7f\u7528\u4e86 AMBE+2 \u58f0\u7801\u5668\uff0c\u5e76\u4e14\u91c7\u7528\u4e86TDMA\u65f6\u5206\u590d\u7528\u65b9\u5f0f\uff0c\u5728\u4e00\u4e2a 12.5KHz \u7684\u4fe1\u9053\u4e2d\u5b9e\u73b0\u4e862\u8def\u901a\u4fe1, \u660e\u663e\u7684\u4f18\u52bf\u5c31\u662f\u4e00\u4e2a\u4e2d\u7ee7\u53f0\u53ef\u4ee5\u652f\u6301\u4e24\u8def\u4e92\u4e0d\u5f71\u54cd\u7684\u5bf9\u8bb2\u3002DMR\u83b7\u5f97\u5e7f\u5927\u5382\u5546\u652f\u6301\u548c\u6388\u6743\uff0c\u5e02\u9762\u4e0aDMR\u8bbe\u5907\u6bd4\u8f83\u4e30\u5bcc\uff0c\u4f46\u521d\u8877\u662f\u5546\u4e1a\u7528\u9014\uff0c\u5927\u90e8\u5206\u4e0d\u662f\u5f88\u8f7b\u677e\u7684\u4fee\u6539\u9891\u7387\u3002 \u548cDSTAR\uff0cSystem Fusion\u4e00\u6837\uff0cDMR\u4e5f\u652f\u6301\u77ed\u4fe1\u529f\u80fd\u3002<\/p>\n<p>DMR\u5206\u4e3a\u4e09\u5c42\uff0cDMR Tire I\/II\/III\uff0cTier I\uff0c\u7b2c\u4e00\u5c42\u7ea7\uff0c\u8fd9\u7c7b\u8bbe\u5907\u4ec5\u4ec5\u652f\u6301\u5355\u9891\u7684\u5bf9\u8bb2\uff0c\u65e9\u671f\u5b9d\u4e30 DM-5R\u5c5e\u4e8e\u8fd9\u7c7b\u3002 Tier II\uff0c\u7b2c\u4e8c\u5c42\uff0c\u652f\u6301\u5dee\u9891\u6536\u53d1\uff0c\u548c\u4e2d\u7ee7\uff0c\u4e5f\u662f\u4e1a\u4f59\u65e0\u7ebf\u7535\u7231\u597d\u8005\u4e3b\u8981\u4f7f\u7528\u7684\uff0c\u6bd4\u5982TYT MD-380\u3002Tier III\uff0c\u7b2c\u4e09\u5c42\uff0c\u9762\u5411\u96c6\u7fa4\u7cfb\u7edf\u3002<\/p>\n<p>\u7531\u4e8e\u4e0d\u662f\u4e13\u4e3a\u4e1a\u4f59\u65e0\u7ebf\u7535\u7231\u597d\u8005\u8bbe\u8ba1\u7684\uff0c\u5176\u4f7f\u7528CCS7 ID\u6216\u8005DMR ID\u4f5c\u4e3a\u8eab\u4efd\u6807\u8bc6\uff0c\u56e0\u6b64DMR\u4e0d\u6ee1\u8db3FCC ID\u7684\u8981\u6c42\u3002DMR\u4e5f\u4e0d\u80fd\u5408\u6cd5\u7684\u652f\u6301GPS\u5b9a\u4f4d\u6570\u636e\uff0c\u4f46\u7684\u786e\u5b58\u5728GPS DMR\u8bbe\u5907\uff0c\u4f46\u57fa\u672c\u90fd\u662f\u57fa\u4e8eDMR\u4fee\u6539\u534f\u8bae\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6839\u636eMike Myer, Mark Kleine\u5e7b\u706f\u7247\uff0c \u6587\u5b57\u5185\u5bb9\u7531BG3MDO\u64b0\u5199 Text written&hellip; <\/p>\n<p><a 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