{"id":435,"date":"2020-02-13T11:41:41","date_gmt":"2020-02-13T03:41:41","guid":{"rendered":"http:\/\/bd6mm.cn\/blog\/?p=435"},"modified":"2020-02-16T11:56:15","modified_gmt":"2020-02-16T03:56:15","slug":"solve-the-problem-of-short-wave-signal-distribution-in-swl-radio-camp","status":"publish","type":"post","link":"https:\/\/bd6mm.cn\/blog\/2020\/02\/solve-the-problem-of-short-wave-signal-distribution-in-swl-radio-camp.html","title":{"rendered":"\u89e3\u51b3SWL\u6536\u97f3\u673a\u8425\u5730\u7684\u77ed\u6ce2\u4fe1\u53f7\u5206\u914d\u95ee\u9898"},"content":{"rendered":"

        \u5317\u5a01\u5dde\u5e7f\u64ad\u7535\u53f0<\/strong>\u4e4b\u53cb\u662f\u4e00\u4e2a\u7531\u5fb7\u56fd\u77ed\u6ce2\u542c\u4f17\u548c\u4e1a\u4f59\u65e0\u7ebf\u7535\u7231\u597d\u8005\u7ec4\u6210\u7684\u72ec\u7acb\u56e2\u4f53\uff0c\u591a\u5e74\u6765\u6bcf\u5e74\u4e00\u76f4\u5728\u7ec4\u7ec72-3\u4e2aSWL\u8425\u5730\uff0c\u4ed6\u4eec\u5728\u8fd9\u91cc\u5c3d\u53ef\u80fd\u5730\u8fdc\u79bb\u7535\u5b50\u566a\u58f0\uff0c\u4ee5\u4fbf\u6536\u542c\u4e00\u8d77\u77ed\u6ce2\u4fe1\u53f7\u3002<\/p>\n

        \u4f5c\u8005\uff1aJoachim von Geisau\uff08DH4JG\uff09<\/p>\n

<\/p>\n

        \u4e3a\u4e86\u5206\u914d\u5929\u7ebf\u4fe1\u53f7\uff0c\u4ed6\u4eec\u4ee5\u524d\u4f7f\u7528\u4e86RFT AVV01\u5929\u7ebf\u5206\u914d\u5668\u3002<\/p>\n

        \u5728SWL\u9635\u8425\u4e2d\uff0c\u5bf9\u4fe1\u53f7\u5206\u914d\u6709\u5f88\u9ad8\u7684\u8981\u6c42\u3002\u975e\u5e38\u5f31\u548c\u5f88\u5f3a\u7684\u4fe1\u53f7\u90fd\u5e94\u5206\u914d\u826f\u597d\uff0c\u65e0\u5931\u771f\uff0c\u65e0\u566a\u58f0\u548c\u5176\u4ed6\u5e72\u6270\u3002<\/span><\/strong>\u4fe1\u53f7\u7535\u5e73\u5927\u7ea6\u57280.2\u03bcV\uff08S1\uff09\u52305mV\uff08S9 + 40 dB\uff09\u4e4b\u95f4\uff0c\u9891\u7387\u8303\u56f4\u81f3\u5c11\u4ece150kHz\u523030 MHz\uff0c\u56e0\u6b64\u8986\u76d6\u4e86\u4eceLW\u5230SW\u7684\u5e7f\u64ad\u9891\u6bb5\uff0c\u4e5f\u5305\u62ec\u6240\u6709\u4e1a\u4f59\u65e0\u7ebf\u7535\u7231\u597d\u8005160 m\u81f310 m\u7684\u4e1a\u4f59\u65e0\u7ebf\u7535\u9891\u6bb5\u3002<\/p>\n

<\/p>\n

        \u6765\u81ea\u524dGDR\uff08\u81f3\u5c1130\u5e74\u5386\u53f2\uff09\u7684RFT AVV01 RF\u5206\u914d\u5668\u6df1\u53d7\u542c\u4f17\u6b22\u8fce\u3002\u4f46\u662f\uff0cAVV01\u7684\u4f7f\u7528\u6709\u51e0\u4e2a\u7f3a\u70b9\uff1a\u9ad8\u529f\u8017\uff0c\u96be\u4ee5\u83b7\u5f97\u5907\u4ef6\uff0c\u63a5\u89e6\u4e0d\u826f\u7684\u9ad8\u7ef4\u62a4\u4fdd\u517b<\/strong><\/span>\u7b49\u3002\u53e6\u5916\uff0cLW \/ MW\u8303\u56f4\u7684\u4f20\u8f93\u4e0b\u964d\uff0c\u8fd9\u5bf9\u4e8eMW\u6536\u542c\u8005\u5c24\u5176\u4e0d\u5229\u3002\u7f57\u5fb7\u4e0e\u65bd\u74e6\u8328\uff08Rohde\uff06Schwarz\uff09\u4ece1960\u5e74\u4ee3\u540e\u671f\u5f00\u59cb\u751f\u4ea7\u7684NV-14\u7cfb\u7edf\u4e5f\u6709\u540c\u6837\u7684\u7f3a\u70b9\u3002<\/p>\n

        \u4e24\u5e74\u524d\uff0c\u4eba\u4eec\u63d0\u51fa\u4e86\u66ff\u4ee3RFT\u7cfb\u7edf\u7684\u6784\u60f3\u3002<\/p>\n

        \u4ee5\u4e0b\u65b9\u9762\u5f88\u91cd\u8981\uff1a<\/p>\n

\n
    \n
  • \n

    \u9891\u7387\u8303\u56f4\u81f3\u5c11100kHz \u2013 30MHz<\/strong>\uff0c\u5c3d\u53ef\u80fd\u7ebf\u6027<\/p>\n<\/li>\n

  • \n

    \u9891\u7387\u4f4e\u4e8e\u6216\u9ad8\u4e8e\u7406\u60f3\u503c<\/p>\n<\/li>\n

  • \n

    \u572812V DC\u6216\u96c6\u6210\u65e0\u566a\u58f0\u7535\u6e90\u4e0a\u8fd0\u884c<\/p>\n<\/li>\n

  • \n

    \u6709\u6e90\u5929\u7ebf\u7684\u8fdc\u7a0b\u7535\u6e90<\/p>\n<\/li>\n

  • \n

    \u7ed3\u5b9e\u7684\u7ed3\u6784<\/p>\n<\/li>\n

  • \n

    \u591a\u529f\u80fd<\/p>\n<\/li>\n

  • \n

    \u4ef7\u683c\u5b9e\u60e0\u53cb\u597d<\/p>\n<\/li>\n<\/ul>\n<\/blockquote>\n

            \u4e1a\u4f59\u65e0\u7ebf\u7535\u5e02\u573a\u63d0\u4f9b\u4e86\u51e0\u79cd\u7528\u4e8eRF\u4fe1\u53f7\u5206\u914d\u7684\u4ea7\u54c1\uff08\u4f8b\u5982ELAD\uff0cBonito\u7b49\uff09\uff0c\u4f46\u6ca1\u6709\u5c066-8\u5929\u7ebf\u5206\u914d\u7ed910-12\u63a5\u6536\u673a\u7684\u89e3\u51b3\u65b9\u6848\u3002\u4ece\u4e00\u5f00\u59cb\u5c31\u5f88\u660e\u663e\uff0cDIY\u7814\u53d1\u662f\u4e0d\u53ef\u907f\u514d\u7684\u3002<\/p>\n

            \u8003\u8651\u7684\u51fa\u53d1\u70b9\u662f\u96c6\u6210\u6709\u6e90\u5929\u7ebf\u7684\u8fdc\u7a0b\u7535\u6e90\uff0c\u653e\u5927\u5668\u7ea7\u548c\u914d\u7535\u7f51\u7edc\u3002<\/strong><\/p>\n

            \u8fd9\u6837\u7684\u5206\u914d\u5668\u80fd\u591f\u5c06\u5929\u7ebf\u4fe1\u53f7\u5206\u914d\u7ed9\u51e0\u4e2a\u63a5\u6536\u5668\u3002\u51e0\u6839\u5929\u7ebf\u9700\u8981\u51e0\u4e2a\u8fd9\u6837\u7684\u5206\u914d\u5668\uff0c\u4ed6\u4eec\u51b3\u5b9a\u91c7\u7528\u63d2\u4ef6\u6280\u672f<\/strong>\u5b9e\u65bd\u8be5\u9879\u76ee\u3002<\/p>\n

            \u4f7f\u7528OM Frank Wornast DD3ZE\uff08www.dd3ze.de\uff09\u7684\u4ea7\u54c1\uff0c\u4ed6\u4eec\u7684\u4ea7\u54c1\u4ee5\u8f6c\u6362\u5668\uff0c\u6ee4\u6ce2\u5668\u7b49\uff0c\u4ee5\u53caRF\u5c04\u9891\u5f00\u53d1\u4eba\u5458\u800c\u4eab\u8a89\u706b\u817f\u5708\uff0c\u4ed6\u6839\u636e\u8be6\u7ec6\u7684\u8bbe\u8ba1\u89c4\u8303\u4fdd\u969c\u4e86\u8be5\u6982\u5ff5\u7684\u5b9e\u65bd\u3002 OM Wornast\u9996\u5148\u751f\u4ea7\u4e86\u6ca1\u6709\u8fdc\u7a0b\u7535\u6e90\u7684\u6837\u673a\uff0c\u8be5\u6837\u673a\u5df2\u7ecf\u51fa\u8272\u5730\u5b8c\u6210\u4e86RF\u4fe1\u53f7\u5206\u914d\u3002<\/p>\n

            \u5728SWL\u8425\u5730\u8fdb\u884c\u7684\u201c\u786c\u5ea6\u6d4b\u8bd5\u201d\u8868\u660e\uff0c\u6b64\u5206\u914d\u6a21\u5757\u8f7b\u677e\u6ee1\u8db3\u4e86\u6211\u4eec\u7684\u8981\u6c42\uff1a\u9891\u7387\u8303\u56f410 kHz \u2013 50 MHz\uff08\u4e5f\u53ef\u7528\u4e8e50 MHz\u4ee5\u4e0a\u7684\u51e0\u5206\u8d1d\u635f\u8017\uff09<\/strong>\u3002\u5728\u5929\u7ebf\u63d2\u5ea7\u5904\u52a0\u4e0a\u53ef\u5207\u6362\u7684\u8fdc\u7a0b\u7535\u6e90\u548c90V\u6c14\u4f53\u653e\u7535\u5668\uff0c\u4ece\u800c\u5f62\u6210\u4e86\u6700\u7ec8\u7684PCB\u5e03\u5c40\uff0c\u4ee3\u8868\u4e86Radio Freunde NRW\u65b0\u578bHF\u5206\u914d\u7cfb\u7edf\u7684\u6838\u5fc3\u3002<\/p>\n

            \u5206\u914d\u5757\u5305\u542b\u4ee5\u4e0b\u7ec4\u4ef6\uff1a<\/p>\n

    \n
      \n
    1. \n

      \u8f93\u5165\u5e26\u670990V\u907f\u96f7\u5668\u548c100 kOhm MOX\u7535\u963b\uff0c\u4ee5\u6d88\u9664\u9759\u7535\u5e72\u6270<\/p>\n<\/li>\n

    2. \n

      \u8fdc\u7a0b\u7535\u6e90\uff0c\u53ef\u5207\u6362\uff0c\u6700\u592710-14V\u3002 350\u6beb\u5b89<\/p>\n<\/li>\n

    3. \n

      14-14.5 dB\u7684\u653e\u5927\u5668\u7ea7<\/p>\n<\/li>\n

    4. \n

      \u7528\u4e8e\u5206\u914d\u7684\u7535\u963b\u5668\u7f51\u7edc<\/p>\n<\/li>\n<\/ol>\n<\/blockquote>\n

              \u8be5\u8bbe\u5907\u7684\u7279\u70b9\u662f\u5177\u6709\u975e\u5e38\u5e73\u6ed1\u7684\u9891\u7387\u54cd\u5e94\uff0c\u5e76\u4e14\u5177\u6709\u975e\u5e38\u4f4e\u7684\u56fa\u6709\u566a\u58f0\u3002<\/strong>\u5b83\u63d0\u4f9b\u4e86\u4f7f\u7528-120dBm\u7535\u5e73\u5e76\u5177\u6709\u975e\u5e38\u597d\u7684SNR\u7684\u53ef\u80fd\u6027\uff0c\u53ef\u5904\u7406\u9ad8\u8fbe+ 14dBm\u7684\u5f3a\u7535\u5e73\u3002\u6b64\u5916\uff0c\u73b0\u5728\u53ef\u4ee5\u5728VLF\u4e0a\u8fdb\u884c\u63a5\u6536\uff0c\u8fd9\u5728\u4ee5\u524d\u7684\u7cfb\u7edf\u4e0a\u4e0d\u8d77\u4f5c\u7528\u3002<\/p>\n

      <\/p>\n

              PCB\u7684\u8bbe\u8ba1\u975e\u5e38\u5b9e\u7528\uff1a\u96c6\u6210\u4e86LED\u4e32\u8054\u7535\u963b\u4ee5\u53ca\u540c\u8f74\u7535\u7f06\u7684\u56fa\u5b9a\u70b9\u3002\u8fdc\u7a0b\u7535\u6e90\u53ef\u4ee5\u5355\u72ec\u5207\u6362\uff0c\u4f46\u4e5f\u53ef\u4ee5\u901a\u8fc7\u8df3\u7ebf\u6c38\u4e45\u4f7f\u7528\u3002<\/p>\n

              \u6709\u4e86\u8fd9\u4e2a\u6982\u5ff5\uff0c\u5206\u914d\u6a21\u5757\u5c31\u53ef\u4ee5\u666e\u904d\u4f7f\u7528\uff1a\u5728\u6709\u6e90\u6216\u65e0\u6e90\u5929\u7ebf\u4e0a\u4f7f\u7528\uff0c\u5e76\u5206\u914d\u7ed9\u591a\u4e2a\u63a5\u6536\u5668\uff0c<\/strong><\/span>\u901a\u8fc7\u5b83\u524d\u9762\u7684\u4e00\u4e2a\u9636\u68af\u5f00\u5173\u4e5f\u53ef\u4ee5\u5206\u914d\u7ed9\u591a\u4e2a\u5929\u7ebf\uff1b\u5982\u679c\u60a8\u672a\u8fde\u63a5\u8fdc\u7a0b\u9988\u9001\u8def\u5f84\uff0c\u5219\u8be5\u5757\u4e5f\u53ef\u4ee5\u7528\u4f5c\u7b80\u5355\u7684\u5206\u53d1\u5668\uff0c\u56e0\u6b64\u5bf9\u4e8e\u7231\u597d\u7528\u9014\u51e0\u4e4e\u662f\u901a\u7528\u7684\u3002<\/p>\n

              \u4e3a\u4e86\u5728SWL\u8425\u5730\u4e0a\u4f7f\u7528\uff0c\u6211\u4eec\u51b3\u5b9a\u5c06\u5b83\u4eec\u5b89\u88c5\u572819\u82f1\u5bf8\u201c\u673a\u67b6\u5b89\u88c5\u201d\u6280\u672f\u4e2d\u3002\u56e0\u6b64\uff0c\u4e00\u4e2a\u6807\u51c6\u673a\u67b6\u53ef\u4ee5\u5bb9\u7eb34\u4e2a\u5206\u914d\u5668\u548c\u4e00\u4e2a\u7535\u6e90\uff0c\u4ece\u800c\u53ef\u4ee5\u5c064\u4e2a\u5929\u7ebf\u5206\u914d\u523012\u4e2a\u8f93\u51fa\u3002\u4e0b\u56fe\u663e\u793a\u4e86\u5b89\u88c5\u793a\u4f8b\uff1a\u4e0e\u8f93\u5165\u5e76\u8054\u7684\u662f\u53e6\u4e00\u4e2aBNC\u63d2\u5ea7\uff0c\u8be5\u63d2\u5ea7\u901a\u8fc7C 100 nF\u8fde\u63a5\uff0c\u5728\u6b64\u5904\u8f93\u5165\u4fe1\u53f7\u53ef\u4ee5\u65e0\u76f4\u6d41\u7535\u7528\u4e8e\u6d4b\u91cf\u7b49\u76ee\u7684\u3002\u5206\u914d\u5355\u5143\u5b89\u88c5\u5728\u8fd0\u8f93\u7bb1\u4e2d\u3002\u7ec4\u4ef6\u672c\u8eab\u5b89\u88c5\u5728\u914d\u6709\u76f8\u5e94\u524d\u9762\u677f\u7684\u6ed1\u5165\u5f0f\u5916\u58f3\u4e2d\uff1a\u6b64\u7c7b\u524d\u9762\u677f\u53ef\u4eceCNC\u5236\u9020\u5546\u5904\u83b7\u5f97\u3002<\/p>\n

      <\/p>\n

              \u5728\u80cc\u9762+ 12V DC\u5fc5\u987b\u4f5c\u4e3a\u5de5\u4f5c\u7535\u538b\u63d0\u4f9b\u3002<\/strong>\u5bf9\u4e8e\u7535\u6e90\u8bbe\u5907\uff0c\u6211\u4eec\u9009\u62e9\u4e86\u7ebf\u6027\u7535\u6e90\uff0c\u56e0\u4e3a\u6211\u4eec\u5df2\u7ecf\u5728\u4e0d\u5e72\u6270\u7684\u60c5\u51b5\u4e0b\u83b7\u5f97\u4e86\u6700\u4f73\u7684\u4f53\u9a8c\u3002\u5bf9\u4e8e\u5177\u67094\u4e2a\u63d2\u69fd\u7684\u5206\u914d\u5355\u5143\uff0c\u4e00\u4e2a12V 1A\u7684\u7535\u6e90\u5c31\u8db3\u591f\u4e86\u2013\u6bcf\u4e2a\u5206\u914d\u5757\u5927\u7ea6\u9700\u898155 mA\uff0c\u4e00\u4e2a\u6709\u6e90\u5929\u7ebf\u6700\u5927\u4e3a150 mA\uff0c\u56e0\u6b64\u5373\u4f7f\u5728\u201c\u6ee1\u8f7d\u201d\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a1A\u7684\u7535\u6e90\u4e5f\u8db3\u591f\u3002\u8be5\u5206\u914d\u5668\u5df2\u901a\u8fc7\u5404\u79cd\u77e5\u540d\u7684\u6709\u6e90\u548c\u65e0\u6e90\u5929\u7ebf\u8fdb\u884c\u4e86\u6d4b\u8bd5\uff0c\u5305\u62ecPA0RDT MiniWhip\uff0c\u6709\u6e90\u73af\u8def\u5929\u7ebf\uff0c\u957f\u7ebf\u5929\u7ebf\u548cT2FD\u5929\u7ebf\u3002<\/p>\n

      <\/p>\n

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              \u5982\u679c\u60a8\u6709\u5174\u8da3\u5efa\u9020\u4e00\u4e2a\uff0c\u8bf7\u8054\u7cfb\u4f5c\u8005\uff08dh4jg@darc.de\uff09\u4ee5\u83b7\u53d6\u66f4\u591a\u4fe1\u606f\u3002\u5206\u914d\u5355\u5143\u7684\u5f00\u53d1\u5386\u53f2\u4e5f\u53ef\u5728www.dx-unlimited.eu\u4e0a\u83b7\u5f97\u3002<\/p>\n

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