{"id":15922,"date":"2015-07-28T09:56:22","date_gmt":"2015-07-28T09:56:22","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T16:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/news.GuitarsChina.com\/?p=15922","title":{"rendered":"\u7eaf\u51c0\u4fe1\u53f7\u7684\u5fc5\u5907\u9009\u62e9\u2014NUX PDI-1G DI\u76d2\u8bc4\u6d4b"},"content":{"rendered":"

\u4e50\u5668\u901a\u8fc7PDI-1G\u80fd\u5f97\u5230\u5e72\u51c0\u7684\u4fe1\u53f7\uff01\u6700\u91cd\u8981\u7684\u662f\u4ed6\u5e26\u6709\u5409\u4ed6\u5587\u53ed\u7bb1\u4f53\u6a21\u62df\u5668\uff0c\u5409\u4ed6\u6216\u8d1d\u65af\u901a\u8fc7PDI-1G\u80fd\u76f4\u63a5\u5165\u8c03\u97f3\u53f0\u8fdb\u884c\u6f14\u51fa\u548c\u5f55\u97f3\u3002\u5b83\u7684PARA OUT\u8f93\u51fa\u8fd8\u5141\u8bb8\u628a\u4f60\u559c\u7231\u7684\u5409\u4ed6\u529f\u653e\u540c\u65f6\u63a5\u5728\u539f\u6765\u7684\u5587\u53ed\u7bb1\u4f53\u4e0a\u7684\u540c\u65f6\uff0c\u628a\u529f\u653e\u7684\u97f3\u8272\u76f4\u63a5\u8f93\u8fdb\u8c03\u97f3\u53f0\uff0c\u4e3a\u4f60\u7684\u73b0\u573a\u6f14\u51fa\u548c\u5f55\u97f3\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u65b9\u4fbf\u548c\u53ef\u80fd\u6027\uff01<\/SPAN>

\u559c\u6b22\u73a9\u4e50\u5668\uff0c\u7279\u522b\u662f\u9700\u8981\u5f55\u97f3\u548c\u6f14\u51fa\u7684\u4eba\u6700\u597d\u51c6\u5907\u4e00\u5757PDI-1G\u6216\u8005PDI-2\u3002<\/SPAN>
  <\/SPAN>
\"\"
PDI-1G\u662f\u4ec0\u4e48\uff1aDirect Injection Box\uff08\u76f4\u63a5\u8f93\u5165\u76d2\uff09\uff0c\u7b80\u79f0\uff1aDI\u76d2\uff0c\u5b9e\u73b0\u7535\u5409\u4ed6\u76f4\u63a5\u8fde\u63a5PA\u7cfb\u7edf\uff0c\u5e73\u8861\u8f93\u5165\u65f6\u963b\u6297\u5339\u914d\u3002\u901a\u4fd7\u5730\u8bf4\u5c31\u662f\u4e00\u4e2a\u4fe1\u53f7\u8f6c\u6362\u5668\uff0c\u662f\u8ddfPA\u7cfb\u7edf\u606f\u606f\u76f8\u5173\u7684\u8bbe\u5907\u3002(\u8fde\u63a5\u5728\u4e50\u5668\u548cPA\u7cfb\u7edf\u4e4b\u95f4\u7684\u8f6c\u6362\u5668)<\/SPAN>

PA\u662f\u4ec0\u4e48: \u7b80\u5355\u7684\u8bf4\u5c31\u662f\u5728\u4e00\u5b9a\u7684\u573a\u5408\u5185\u4f5c\u4e3a\u7535\u5b50\u7cfb\u7edf\u4fe1\u53f7\u6269\u5927\u7684\u4e00\u5957\u8bbe\u5907\u3002\u901a\u5e38\u5927\u578b\u6f14\u5531\u4f1a\u7684\u73b0\u573a\u8c03\u97f3\u5e08\u6240\u64cd\u63a7\u7684\u8bbe\u5907\u53ef\u4ee5\u7b97\u662f\u4e00\u7ec4PA\uff0c\u5ba4\u5916\u8fd0\u52a8\u4f1a\u65f6\u7684\u51e0\u4e2a\u5587\u53ed\u3001MIC\u4e5f\u53ef\u4ee5\u7b97\u662fPA\u3002\uff08\u5c31\u662f\u4e00\u7ec4\u4fe1\u53f7\u5904\u7406\u548c\u653e\u5927\u7528\u7684\u8bbe\u5907\uff09<\/SPAN>


\u4e3a\u4ec0\u4e48\u9700\u8981PDI-1G DI\u76d2:<\/STRONG>

\u5409\u4ed6\uff08\u6216\u8005\u6548\u679c\u5668\uff09\u8f93\u51fa\u7684\u4fe1\u53f7\u662f\u9ad8\u963b\u6297\u7684\uff08HI-Z\uff09\uff0c\u800cPA\u9700\u8981\u7684\u662f\u4e00\u4e2a\u4f4e\u963b\u6297\u7684\u4fe1\u53f7\uff0c\u672c\u8d28\u6765\u770b,\u8fd9\u4e24\u79cd\u4fe1\u53f7\u662f\u4e0d\u5339\u914d\u7684,\u6240\u4ee5\u9700\u8981DI\u76d2\u6765\u5e73\u8861\u4fe1\u53f7\u963b\u6297\uff0c\u4ece\u800c\u8ba9PA\u7cfb\u7edf\u5904\u7406\u548c\u653e\u5927\u4e50\u5668\u7684\u4fe1\u53f7\u3002<\/SPAN>

(HI-Z  \u4f60\u53ef\u4ee5\u628a\u5b83\u770b\u4f5c\u8f93\u51fa\uff08\u8f93\u5165\uff09\u7535\u963b\u975e\u5e38\u5927.\uff0c\u518d\u8f93\u5165\u4e0b\u4e00\u7ea7\u7535\u8def\u7684\u8bdd\uff0c\u5bf9\u4e0b\u7ea7\u7535\u8def\u65e0\u4efb\u4f55\u5f71\u54cd\uff0c\u548c\u6ca1\u63a5\u4e00\u6837\uff0c\u5982\u679c\u7528\u4e07\u7528\u8868\u6d4b\u7684\u8bdd\u6709\u53ef\u80fd\u662f\u9ad8\u7535\u5e73\u4e5f\u6709\u53ef\u80fd\u662f\u4f4e\u7535\u5e73\uff0c\u968f\u5b83\u540e\u9762\u63a5\u7684\u4e1c\u897f\u5b9a \u3002)<\/SPAN>


\u5bf9\u4e8e\u51e0\u4e2a\u5409\u4ed6\u624b\u6765\u8bf4\uff0c\u5355\u7eaf\u7684DI\u4f5c\u7528\u5e76\u4e0d\u662f\u7279\u522b\u5927\uff0c\u53ea\u6709\u51e0\u79cd\u60c5\u51b5\u4e0b\u624d\u9700\u8981DI\uff1a<\/STRONG>

1.\u5f53\u5409\u4ed6\u624b\u9700\u8981\u5728\u957f\u8ddd\u79bb\u4f20\u8f93\u4fe1\u53f7\u6f14\u51fa\u7684\u65f6\u5019\uff1b<\/SPAN>
2.\u5f53\u5409\u4ed6\u624b\u9700\u8981\u76f4\u63a5\u8fde\u63a5\u7535\u8111\u58f0\u5361\u7136\u540e\u4f7f\u7528\u8f6f\u4ef6\u6548\u679c\u5668\u7684\u65f6\u5019\uff1b<\/SPAN>
3.\u5f53\u5409\u4ed6\u624b\u9700\u8981\u8ba9\u5409\u4ed6\u4fe1\u53f7\u4ee5\u8f93\u51fa\u5c31\u6210\u4e3a\u4f4e\u963b\u6297\u4fe1\u53f7\uff0c\u4ece\u800c\u4fdd\u8bc1\u97f3\u8272\u7684\u65f6\u5019\uff08\u6bd4\u5982NEIL ZAZA\uff09;<\/SPAN>
4.\u5f53\u5409\u4ed6\u624b\u8fde\u63a5\u7684\u97f3\u54cd\u8bbe\u5907\u4fe1\u53f7\u963b\u6297\u4e0d\u5339\u914d\u7684\u65f6\u5019\u3002<\/SPAN>

DI\u76d2\u548c\u7bb1\u4f53\u6a21\u62df\u7684\u533a\u522b\uff1a<\/STRONG>

\u5728\u666e\u901a\u7528\u6237\u7fa4\u4f53\u4e2d\u6709\u5927\u90e8\u5206\u4eba\u666e\u904d\u8bef\u8ba4\u4e3aDI\u548c\u7bb1\u4f53\u6a21\u62df\u662f\u4e00\u79cd\u4e1c\u897f\uff0c\u6240\u4ee5\u76f2\u76ee\u5730\u8d2d\u4e70\u4e86\u9519\u8bef\u7684\u8bbe\u5907\u5bfc\u81f4\u53d1\u51fa\u9519\u8bef\u7684\u97f3\u8272\uff0c\u8fdb\u4e00\u6b65\u5bfc\u81f4\u4e86\u5bf9\u8fd9\u7c7b\u4ea7\u54c1\u7684\u9519\u8bef\u8ba4\u8bc6\u3002DI\u53ea\u662f\u4e3a\u4e86\u8ba9\u4e50\u5668\u8fde\u63a5PA\u7cfb\u7edf\u6765\u5e73\u8861\u5b83\u4eec\u9ad8\u963b\u6297\u8f93\u51fa\uff0c\u8ba9PA\u7cfb\u7edf\u6b63\u5e38\u5de5\u4f5c\u7684\uff1b\u800c\u7bb1\u4f53\u6a21\u62df\u4ec5\u4ec5\u662f\u6a21\u62df\u7bb1\u4f53\u7684\uff0c\u4e24\u8005\u529f\u80fd\u4e0d\u4e00\u6837\uff0c\u4e00\u822c\u9700\u8981\u5409\u4ed6\u76f4\u63a5\u8fde\u63a5\u6548\u679c\u5668\/\u524d\u7ea7\u8bbe\u5907\u6216\u8005\u76f4\u63a5\u8fde\u63a5\u5206\u4f53\u97f3\u7bb1\u7bb1\u5934\uff0c\u518d\u76f4\u63a5\u8fde\u63a5\u8fdb\u5165\u8c03\u97f3\u53f0\u6216\u8005\u7535\u8111\u8fdb\u884c\u5f55\u97f3\u7684\u65f6\u5019\uff0c\u7bb1\u4f53\u6a21\u62df\u5668\u624d\u662f\u9700\u8981\u7684\u8bbe\u5907\u3002\uff08\u5c31\u50cf\u662f\u4e00\u53f0\u5206\u4f53\u97f3\u7bb1\uff0c\u8981\u7531\u7bb1\u5934\u548c\u7bb1\u4f53\u642d\u914d\u624d\u80fd\u53d1\u51fa\u6b63\u5e38\u7684\u58f0\u97f3\uff0c\u5728\u6ca1\u6709\u5409\u4ed6\u97f3\u7bb1\u4e13\u7528\u7bb1\u4f53\u7684\u65f6\u5019\u53ef\u4ee5\u4f7f\u7528\u7bb1\u4f53\u6a21\u62df\u5668\u6765\u8fde\u63a5\u975e\u5409\u4ed6\u97f3\u7bb1\u4e13\u7528\u7bb1\u4f53\u6765\u83b7\u5f97\u6b63\u5e38\u7684\u58f0\u97f3\u3002\uff09<\/SPAN>

PDI-1G\u7684\u529f\u80fd\u7279\u70b9\uff1a<\/STRONG>

1.\u5b83\u867d\u7136\u662fDI\u76d2\uff0c\u4f46\u662f\u5e26\u6709\u5409\u4ed6\u7bb1\u4f53\u6a21\u62df\u529f\u80fd\uff0c\u5409\u4ed6\u901a\u8fc7PDI-1G\u80fd\u76f4\u63a5\u5165\u8c03\u97f3\u53f0\u8fdb\u884c\u6f14\u51fa\u548c\u5f55\u97f3\uff1b<\/SPAN>
2.PDI-1G\u9664\u4e86\u5916\u89c2\u5c0f\u5de7\u800c\u4e14\u575a\u56fa\uff0c\u65b9\u4fbf\u643a\u5e26\u4e4b\u5916\u8fd8\u6709Ground lift\u5f00\u5173\u6d88\u9664\u5730\u73af\u5f0f\u566a\u97f3<\/SPAN>
3.PDI-1G DI\u76d2\u5e76\u4e0d\u4ec5\u4ec5\u9650\u4e8e\u5409\u4ed6\u4f7f\u7528\uff0c\u8fde\u8d1d\u53f8\u67b6\u5b50\u9f13\u952e\u76d8\u7b49\u4e50\u5668\u4e5f\u90fd\u53ef\u4ee5\u4f7f\u7528\uff1b<\/SPAN>
4.\u5b83\u7684PARA OUT\u8f93\u51fa\u8fd8\u5141\u8bb8\u628a\u4f60\u559c\u6b22\u7684\u5409\u4ed6\u7bb1\u5934\u5728\u63a5\u5728\u7bb1\u4f53\u4e0a\u7684\u540c\u65f6\uff0c\u8fd8\u80fd\u628a\u7bb1\u5934\u7684\u97f3\u8272\u76f4\u63a5\u8f93\u8fdb\u8c03\u97f3\u53f0\uff0c\u4e3a\u4f60\u7684\u73b0\u573a\u6f14\u51fa\u548c\u5f55\u97f3\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u65b9\u4fbf\u548c\u53ef\u80fd\u6027\uff01<\/SPAN>

PDI-1G\u9762\u5bf9\u7684\u5ba2\u6237\u7fa4\u4f53\uff1a <\/SPAN><\/STRONG>

1.\u6ca1\u6709\u6b63\u786e\u642d\u914d\u8bbe\u5907\u7684\u8857\u5934\u5356\u5531\u5409\u4ed6\u624b – \u4ed6\u4eec\u7ecf\u5e38\u9047\u5230\u7684\u95ee\u9898\u7684\u5c31\u662f\u5409\u4ed6\u8fde\u63a5\u5356\u5531\u97f3\u54cd\u7684\u65f6\u5019\u5409\u4ed6\u97f3\u91cf\u504f\u5c0f\uff0c\u58f0\u97f3\u6d51\u6d4a\u4e0d\u81ea\u7136\u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u5356\u5531\u97f3\u54cd\u975e\u5409\u4ed6\u4e13\u7528\u97f3\u7bb1\uff0c\u5b58\u5728\u4fe1\u53f7\u963b\u6297\u4e0d\u5339\u914d\u7684\u95ee\u9898\uff0c\u8fd9\u65f6\u5019\u9700\u8981PDI-1G\u6765\u5e73\u8861\u4fe1\u53f7\u963b\u6297\uff0c\u83b7\u5f97\u6b63\u5e38\u7684\u58f0\u97f3\uff0c.<\/SPAN>
2.\u5728\u5bb6\u8fde\u63a5\u7535\u8111\u58f0\u5361\u7528\u8f6f\u4ef6\u6548\u679c\u5668\u5f55\u97f3\u7684\u5409\u4ed6\u624b \u2013 \u8fd8\u662f\u4fe1\u53f7\u963b\u6297\u5339\u914d\u7684\u4e8b(\u5ef6\u8fdf\u548c\u97f3\u91cf\u5c0f\u7684\u95ee\u9898)<\/SPAN>
3.\u5bf9\u97f3\u8272\u6709\u4e00\u5b9a\u8ffd\u6c42\u4f46\u662f\u8bbe\u5907\u8ddf\u4e0d\u4e0a\u7684\u5409\u4ed6\u624b \u2013 \u548c\u8857\u5934\u5356\u5531\u5409\u4ed6\u624b\u7684\u6848\u4f8b\u4e00\u6837\uff0c\u8fd9\u7c7b\u5409\u4ed6\u624b\u4e5f\u662f\u8bbe\u5907\u642d\u914d\u9519\u8bef\u7684\u95ee\u9898\uff0c\u901a\u5e38\u4f34\u968f\u4e1a\u4f59\u4e50\u961f\u51fa\u73b0\u3002\u4ed6\u4eec\u7ecf\u5e38\u4f1a\u628a\u6240\u6709\u4e50\u5668\u8fde\u63a5\u5230\u8c03\u97f3\u53f0\u518d\u7531\u821e\u53f0\u97f3\u54cd\u6269\u97f3\uff0c\u751a\u81f3\u6709\u4e00\u4e9b\u8d1d\u65af\u624b\u628a\u4ed6\u4eec\u7684\u8d1d\u65af\u63a5\u5728\u5409\u4ed6\u97f3\u7bb1\u4e0a\u3002<\/SPAN>
4.\u5bf9\u97f3\u8272\u6709\u6781\u9ad8\u8981\u6c42\u7684\u5409\u4ed6\u624b\u3002<\/SPAN>

\u5f53\u7136\uff0c\u8fd8\u6709\u5f88\u591a\u9700\u8981PDI-1G\u8fd9\u7c7b\u4ea7\u54c1\u7684\u5409\u4ed6\u624b.<\/SPAN>

\u5982\u679c\u8fd8\u662f\u4e0d\u5927\u660e\u767dDI\u76d2\u7684\u4f5c\u7528\uff0c\u90a3\u4e48\u518d\u6253\u4e2a\u6bd4\u65b9\u8bf4\u4e00\u4e0b\uff1a<\/SPAN>

\u5047\u5982\u4f60\u7684\u624b\u4e0a\u6709\u4e00\u4e2a\u5927\u6c64\u52fa\uff0c\u4f60\u9700\u8981\u7528\u8fd9\u4e2a\u6c64\u52fa\u628a\u6c34\u76db\u8fdb\u4e00\u4e2a\u74f6\u5b50\u91cc\uff0c\u4f46\u662f\u74f6\u5b50\u7684\u74f6\u53e3\u6bd4\u8f83\u5c0f\uff0c\u5f53\u4f60\u76db\u6ee1\u4e00\u52fa\u6c34\u518d\u4ece\u5c0f\u5c0f\u7684\u74f6\u53e3\u5012\u8fdb\u53bb\u7684\u65f6\u5019\uff0c\u53ea\u6709\u5c11\u91cf\u7684\u6c34\u4f1a\u8fdb\u5165\u74f6\u5b50\uff0c\u5176\u4ed6\u7684\u4f1a\u5728\u74f6\u53e3\u8fb9\u7f18\u6ea2\u51fa\uff0c\u5f88\u96be\u5168\u90e8\u5012\u8fdb\u74f6\u5b50\uff0c\u4ece\u800c\u635f\u5931\u4e86\u4e00\u4e9b\u6c34\u3002\u540c\u6837\u7684\u9053\u7406\uff0c\u5409\u4ed6\/\u6548\u679c\u5668\u8f93\u51fa\u7684\u9ad8\u963b\u6297\u4fe1\u53f7\u5c31\u50cf\u662f\u6c64\u52fa\uff0c\u74f6\u5b50\u5c31\u76f8\u5f53\u4e8ePA\u7684\u8c03\u97f3\u53f0\uff0c\u6c34\u53ef\u4ee5\u770b\u4f5c\u662f\u4fe1\u53f7\uff0c\u9ad8\u963b\u6297\u7684\u8f93\u51fa\u8fdb\u5165\u4f4e\u963b\u6297\u7684\u8f93\u5165\u5f88\u5bb9\u6613\u9020\u6210\u4fe1\u53f7\u635f\u5931\u3002\u4f46\u662f\u5728\u8fd9\u4e2a\u74f6\u5b50\u7684\u53e3\u4e0a\u52a0\u4e00\u4e2a\u6f0f\u6597\u7684\u8bdd\uff0c\u6c34\u5c31\u80fd\u6ee1\u6ee1\u5730\u5012\u8fdb\u53bb\u4e86\uff0c\u5bf9DI\u76d2\u5c31\u662f\u8fd9\u4e2a\u6f0f\u6597\uff0c\u6539\u53d8\u5409\u4ed6\/\u6548\u679c\u5668\u7684\u975e\u5e73\u8861\u9ad8\u963b\u6297\u7684\u58f0\u97f3\u6210\u4e3a\u5e73\u8861\u4f4e\u963b\u6297\u5b8c\u6574\u5730\u8fdb\u5165PA\uff0c\u907f\u514d\u4fe1\u53f7\u635f\u5931\u3002<\/SPAN>

\u5b9e\u9645\u529f\u80fd\u64cd\u4f5c\u8bb2\u89e3\uff1a<\/STRONG>

\"\"

1.POWER\uff1a\u5f00\u542f\/\u5173\u95ed\u8bbe\u5907\u7684\u7535\u6e90<\/SPAN>
2.Grond Lift\u6309\u94ae\uff1a\u6b63\u5e38\u60c5\u51b5\u4e0b\u6309\u8d77\u6765\u5373\u53ef\uff0c\u5982\u679c\u6709\u7531\u4e8e\u5730\u73af\u56de\u8def\u539f\u56e0\u5bfc\u81f4\u7684\u566a\u97f3\u6216\u8005\u4ea4\u6d41\u58f0\u53ef\u4ee5\u6309\u4e0b\u8fd9\u4e2a\u94ae\u6765\u89e3\u51b3\u95ee\u9898<\/SPAN>
3.attenuation\u9009\u62e9\u5f00\u5173\uff1a\u6839\u636e\u4ecb\u5165\u8bbe\u5907\u7684\u578b\u53f7\u4e0d\u540c\u8bbe\u5b9a\u6b21\u5f00\u5173\u7684\u4f4d\u7f6e<\/SPAN>

0dB\uff1a\u8fde\u63a5\u5e38\u89c4\u7684\u7535\u5409\u4ed6\uff0c\u7535\u8d1d\u53f8\uff0c\u952e\u76d8\u8bbe\u5907<\/SPAN>
-20dB:\u8fde\u63a5\u4e13\u4e1a\u97f3\u9891\u8bbe\u5907\uff08\u8f93\u51fa\u7535\u5e73\u989d\u5b9a\u503c\u5728+4dBm\uff09<\/SPAN>
-40dB:\u5409\u4ed6\u529f\u7387\u653e\u5927\u5668\u7684\u5587\u53ed\u8f93\u51fa\u63a5\u53e3<\/SPAN>
\u6ce8\u610f\uff1a\u5982\u679c\u4f7f\u7528\u5587\u53ed\u4f5c\u4e3a\u4fe1\u53f7\u8f93\u51fa\uff0c\u5fc5\u987b\u8fde\u63a5\u5587\u53ed\u7bb1\u4f53\u5230PARAOUT\u63a5\u53e3<\/SPAN>

4.INPUT:\u63a5\u5409\u4ed6\u3001\u6548\u679c\u5668\u3001\u97f3\u7bb1\u3001\u529f\u653e\u7b49\u4fe1\u53f7\u6e90\u7684<\/SPAN>
5.PARA OUT\u63a5\u53e3\uff1a\u5c06\u4eceINPUT\u63a5\u53e3\u8f93\u5165\u7684\u4fe1\u53f7\u76f4\u63a5\u8f93\u51fa\u5230\u5176\u4ed6\u8bbe\u5907<\/SPAN>
6.\u5409\u4ed6\u7bb1\u4f53\u6a21\u62df\u5f00\u5173\uff1aOFF\u6863\u4f4d\u5173\u95ed\u6a21\u62df\uff0cOPEN\u4e3a\u6a21\u4eff\u5f00\u653e\u5f0f\u7bb1\u4f53\uff0cCLOSED\u4e3a\u6a21\u4eff\u5c01\u95ed\u5f0f\u7bb1\u4f53<\/SPAN>

\u5f00\u653e\u5f0f\u7bb1\u4f53\uff1a<\/STRONG>\u653e\u5f0f\u7bb1\u4f53\u7684\u8bbe\u8ba1\uff0c\u4f7f\u5f97\u4f4e\u9891\u80fd\u591f\u66f4\u987a\u7545\u5730\u4f20\u64ad\u51fa\u53bb\u3002\u56e0\u4e3a\u6b64\u65f6\u7bb1\u4f53\u4e2d\u7a7a\u6c14\u7684\u9707\u52a8\u5df2\u7ecf\u6ca1\u6709\u80cc\u677f\u7684\u963b\u788d\u4e86\u3002\u8fd9\u4e5f\u5c31\u4f7f\u5f97\u6700\u7ec8\u7684\u97f3\u8272\u7ebf\u6761\u66f4\u6e05\u6670\uff0c\u68f1\u89d2\u66f4\u5206\u660e\uff0c\u542c\u4e0a\u53bb\u66f4\u76f4\u63a5\uff0c\u7a7a\u95f4\u611f\u4e5f\u4f1a\u66f4\u5f3a\u3002\u5bf9\u4e8e\u5409\u4ed6\u97f3\u7bb1\u800c\u8a00\uff0c\u5f00\u653e\u5f0f\u7684\u7bb1\u4f53\u6240\u80fd\u63d0\u4f9b\u7684\u7acb\u4f53\u611f\uff0c\u5728\u6e05\u97f3\u548c\u8fc7\u8f7d\u97f3\u8272\u7684\u65f6\u5019\u80fd\u591f\u4f53\u73b0\u7684\u66f4\u597d\uff0c\u8fd9\u4fbf\u662f\u5b83\u7684\u5148\u5929\u4f18\u52bf\u3002\u8fd9\u4e5f\u5c31\u662f\u4e3a\u4ec0\u4e48\u5f88\u591a\u5584\u4e8e\u6f14\u594fLow Gain\u97f3\u8272\u7684\u4e50\u624b\u70ed\u8877\u4e8e\u8fd9\u7c7b\u97f3\u7bb1\u7684\u539f\u56e0\u3002<\/SPAN>

\u5c01\u95ed\u5f0f\u7bb1\u4f53\uff1a<\/STRONG>\u76f8\u5bf9\u4e8e\u80cc\u677f\u5f00\u653e\u5f0f\u7684\u7bb1\u4f53\u800c\u8a00\uff0c\u80cc\u677f\u5c01\u95ed\u5f0f\u7684\u7bb1\u4f53\u80fd\u591f\u66f4\u76f4\u63a5\u7684\u4f20\u9012\u58f0\u97f3\u5e76\u4e14\u97f3\u8272\u4e2d\u7684\u4f4e\u9891\u66f4\u4e30\u5bcc\u4e00\u4e9b\u3002\u7531\u4e8e\u5c01\u95ed\u5f0f\u7684\u80cc\u677f\u8bbe\u8ba1\uff0c\u58f0\u97f3\u4fe1\u53f7\u80fd\u591f\u88ab\u5f88\u597d\u7684\u805a\u96c6\u8d77\u6765\u4ece\u800c\u901a\u8fc7\u5587\u53ed\u653e\u5c04\u51fa\u53bb\u3002\u5728\u8d1d\u53f8\u97f3\u7bb1\u7684\u8303\u7574\uff0c\u56e0\u4e3a\u5b83\u4eec\u8ffd\u6c42\u66f4\u591a\u7684\u4f4e\u9891\uff0c\u6240\u4ee5\u80cc\u677f\u5c01\u95ed\u5f0f\u7ed3\u6784\u66f4\u53d7\u504f\u7231\u3002\u4f46\u662f\u5c01\u95ed\u7bb1\u4f53\u4e5f\u6709\u4e0d\u8db3\u7684\u5730\u65b9\uff0c\u6bd4\u5982\u8bf4\u5728\u6bd4\u8f83\u72ed\u7a84\u7684\u821e\u53f0\u4e0a\u6f14\u51fa\u7684\u65f6\u5019\uff0c\u7531\u4e8e\u573a\u5730\u6bd4\u8f83\u5c0f\uff0c\u4e5f\u5c31\u65e0\u6cd5\u4f7f\u7528\u76d1\u542c\u97f3\u7bb1\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5409\u4ed6\u624b\u7ad9\u5728\u97f3\u7bb1\u524d\u9762\u6f14\u594f\uff0c\u80fd\u591f\u5f88\u597d\u7684\u542c\u5230\u81ea\u5df1\u7684\u58f0\u97f3\uff0c\u800c\u6b64\u65f6\u9f13\u624b\u548c\u5176\u4ed6\u4e50\u624b\u5f80\u5f80\u53ea\u80fd\u591f\u542c\u5230\u5409\u4ed6\u6a21\u7cca\u4e00\u7247\u7684\u58f0\u97f3\uff0c\u66f4\u7cdf\u7cd5\u7684\u65f6\u5019\u751a\u81f3\u8fde\u97f3\u8c03\u90fd\u542c\u4e0d\u51fa\u6765\u4e86\u3002<\/SPAN>

\"\"

\"\"

PDI-2\u53d8\u538b\u5668\u9694\u79bbDI\u76d2<\/STRONG>

\u5b83\u7684\u529f\u80fd\u6bd4PDI-1G\u66f4\u5b8c\u7f8e\uff0cPDI-1G\u662f\u4e00\u5757\u5e26\u7bb1\u4f53\u6a21\u62df\u529f\u80fd\u7684\u4e3b\u52a8DI\u76d2\uff0c\u800cPDI-2\u5728PDI-1G\u7684\u529f\u80fd\u57fa\u7840\u4e0a\uff0c\u662f\u53ef\u4ee5\u4e3b\u52a8\u88ab\u52a8\u6a21\u5f0f\u5207\u6362\u7684\uff0c\u5207\u5230\u88ab\u52a8\u6a21\u5f0f\u65f6\u5019\u65e0\u9700\u7535\u6e90\u4e5f\u53ef\u4ee5\u5de5\u4f5c\u3002<\/SPAN>

PID-2\u7684MOD\u6a21\u5f0f\u9009\u62e9\u5f00\u5173\u53ef\u4ee5\u6839\u636e\u4fe1\u53f7\u6e90\u7684\u4e0d\u540c\u9009\u62e9\u4e0d\u540c\u7684\u6a21\u5f0f\u6216\u8005\u9759\u97f3\u3002<\/SPAN>
ACT(\u4e3b\u52a8)\u6a21\u5f0f\uff1a\u53ef\u4ee5\u8fde\u63a5\u7535\u5409\u4ed6\uff0c\u7535\u8d1d\u53f8\u7b49\u9ad8\u963b\u6297\u4fe1\u53f7\u6e90\u3002\u5728\u4e3b\u52a8\u6a21\u5f0f\u4e0b\u5fc5\u987b\u63d0\u4f9b\u5916\u90e8\u7684\u7535\u6e90\u4f9b\u7535\u624d\u80fd\u5de5\u4f5c\u3002<\/SPAN>
MUTE(\u9759\u97f3)\u6a21\u5f0f\uff1a\u5728\u9759\u97f3\u6a21\u5f0f\u4e0bPDI-2\u505c\u6b62\u8f93\u51fa\u4fe1\u53f7\u3002\uff08\u4eba\u5728\u79bb\u5f00\u7684\u65f6\u5019\u53ef\u4ee5\u5207\u5230\u9759\u97f3\u6a21\u5f0f\uff0c\u4e0d\u7528\u518d\u5728\u5176\u4ed6\u8bbe\u5907\u4e0a\u4fee\u6539\uff09<\/SPAN>
PAS(\u88ab\u52a8\u6a21\u5f0f)\uff1a\u8fd9\u4e2a\u6a21\u5f0f\u53ef\u4ee5\u8fde\u63a5\u952e\u76d8\u6216\u8005\u63d2\u5165\u5230\u5587\u53ed\u548c\u97f3\u7bb1\u76f4\u63a5\u6c72\u53d6\u4fe1\u53f7\uff0c\u5e76\u4e14\u65e0\u9700\u7535\u6e90\u4e5f\u53ef\u4ee5\u5de5\u4f5c\uff01<\/SPAN>

\u53e6\u5916\u914d\u7f6e\u4e86Blance out\u5e73\u8861\u8f93\u51fa\u63a5\u53e3\u548cUnbalance out\u975e\u5e73\u8861\u8f93\u51fa\u63a5\u53e3\uff0c\u4fe1\u53f7\u7ecf\u8fc7\u7f13\u51b2\u5668\u548c\u8870\u51cf\u5668\u540e\u8f93\u51fa\u5230unbalance out\u975e\u5e73\u8861\u8f93\u51fa\u63a5\u53e3\u3002<\/SPAN><\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e50\u5668\u901a\u8fc7PDI-1G\u80fd\u5f97\u5230\u5e72\u51c0\u7684\u4fe1\u53f7\uff01\u6700\u91cd\u8981\u7684\u662f\u4ed6\u5e26\u6709\u5409\u4ed6\u5587\u53ed\u7bb1\u4f53\u6a21\u62df\u5668\uff0c\u5409\u4ed6\u6216\u8d1d\u65af\u901a\u8fc7PDI-1G\u80fd\u76f4\u63a5\u5165\u8c03\u97f3\u53f0\u8fdb\u884c\u6f14\u51fa\u548c\u5f55\u97f3\u3002\u5b83\u7684PARA OUT\u8f93\u51fa\u8fd8\u5141\u8bb8\u628a\u4f60\u559c\u7231\u7684\u5409\u4ed6\u529f\u653e\u540c\u65f6\u63a5\u5728\u539f\u6765\u7684\u5587\u53ed\u7bb1\u4f53\u4e0a\u7684\u540c\u65f6\uff0c\u628a\u529f\u653e\u7684\u97f3\u8272\u76f4\u63a5\u8f93\u8fdb\u8c03\u97f3\u53f0\uff0c\u4e3a\u4f60\u7684\u73b0\u573a\u6f14\u51fa\u548c\u5f55\u97f3\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u65b9\u4fbf\u548c\u53ef\u80fd\u6027\uff01\u559c\u6b22\u73a9\u4e50\u5668\uff0c\u7279\u522b\u662f\u9700\u8981\u5f55\u97f3\u548c\u6f14\u51fa\u7684\u4eba\u6700\u597d\u51c6\u5907\u4e00\u5757PDI-1G\u6216\u8005PDI-2\u3002  PDI-1G\u662f\u4ec0\u4e48\uff1aDirect Injection Box\uff08\u76f4\u63a5\u8f93\u5165\u76d2\uff09\uff0c\u7b80\u79f0\uff1aDI\u76d2\uff0c\u5b9e\u73b0\u7535\u5409\u4ed6\u76f4\u63a5\u8fde\u63a5PA\u7cfb\u7edf\uff0c\u5e73\u8861\u8f93\u5165\u65f6\u963b\u6297\u5339\u914d\u3002\u901a\u4fd7\u5730\u8bf4\u5c31\u662f\u4e00\u4e2a\u4fe1\u53f7\u8f6c\u6362\u5668\uff0c\u662f\u8ddfPA\u7cfb\u7edf\u606f\u606f\u76f8\u5173\u7684\u8bbe\u5907\u3002(\u8fde\u63a5\u5728\u4e50\u5668\u548cPA\u7cfb\u7edf\u4e4b\u95f4\u7684\u8f6c\u6362\u5668)PA\u662f\u4ec0\u4e48: \u7b80\u5355\u7684\u8bf4\u5c31\u662f\u5728\u4e00\u5b9a\u7684\u573a\u5408\u5185\u4f5c\u4e3a\u7535\u5b50\u7cfb\u7edf\u4fe1\u53f7\u6269\u5927\u7684\u4e00\u5957\u8bbe\u5907\u3002\u901a\u5e38\u5927\u578b\u6f14\u5531\u4f1a\u7684\u73b0\u573a\u8c03\u97f3\u5e08\u6240\u64cd\u63a7\u7684\u8bbe\u5907\u53ef\u4ee5\u7b97\u662f\u4e00\u7ec4PA\uff0c\u5ba4\u5916\u8fd0\u52a8\u4f1a\u65f6\u7684\u51e0\u4e2a\u5587\u53ed\u3001MIC\u4e5f\u53ef\u4ee5\u7b97\u662fPA\u3002\uff08\u5c31\u662f\u4e00\u7ec4\u4fe1\u53f7\u5904\u7406\u548c\u653e\u5927\u7528\u7684\u8bbe\u5907\uff09\u4e3a\u4ec0\u4e48\u9700\u8981PDI-1G DI\u76d2:\u5409\u4ed6\uff08\u6216\u8005\u6548\u679c\u5668\uff09\u8f93\u51fa\u7684\u4fe1\u53f7\u662f\u9ad8\u963b\u6297\u7684\uff08HI-Z\uff09\uff0c\u800cPA\u9700\u8981\u7684\u662f\u4e00\u4e2a\u4f4e\u963b\u6297\u7684\u4fe1\u53f7\uff0c\u672c\u8d28\u6765\u770b,\u8fd9\u4e24\u79cd\u4fe1\u53f7\u662f\u4e0d\u5339\u914d\u7684,\u6240\u4ee5\u9700\u8981DI\u76d2\u6765\u5e73\u8861\u4fe1\u53f7\u963b\u6297\uff0c\u4ece\u800c\u8ba9PA\u7cfb\u7edf\u5904\u7406\u548c\u653e\u5927\u4e50\u5668\u7684\u4fe1\u53f7\u3002(HI-Z  \u4f60\u53ef\u4ee5\u628a\u5b83\u770b\u4f5c\u8f93\u51fa\uff08\u8f93\u5165\uff09\u7535\u963b\u975e\u5e38\u5927.\uff0c\u518d\u8f93\u5165\u4e0b\u4e00\u7ea7\u7535\u8def\u7684\u8bdd\uff0c\u5bf9\u4e0b\u7ea7\u7535\u8def\u65e0\u4efb\u4f55\u5f71\u54cd\uff0c\u548c\u6ca1\u63a5\u4e00\u6837\uff0c\u5982\u679c\u7528\u4e07\u7528\u8868\u6d4b\u7684\u8bdd\u6709\u53ef\u80fd\u662f\u9ad8\u7535\u5e73\u4e5f\u6709\u53ef\u80fd\u662f\u4f4e\u7535\u5e73\uff0c\u968f\u5b83\u540e\u9762\u63a5\u7684\u4e1c\u897f\u5b9a \u3002)\u5bf9\u4e8e\u51e0\u4e2a\u5409\u4ed6\u624b\u6765\u8bf4\uff0c\u5355\u7eaf\u7684DI\u4f5c\u7528\u5e76\u4e0d\u662f\u7279\u522b\u5927\uff0c\u53ea\u6709\u51e0\u79cd\u60c5\u51b5\u4e0b\u624d\u9700\u8981DI\uff1a1.\u5f53\u5409\u4ed6\u624b\u9700\u8981\u5728\u957f\u8ddd\u79bb\u4f20\u8f93\u4fe1\u53f7\u6f14\u51fa\u7684\u65f6\u5019\uff1b2.\u5f53\u5409\u4ed6\u624b\u9700\u8981\u76f4\u63a5\u8fde\u63a5\u7535\u8111\u58f0\u5361\u7136\u540e\u4f7f\u7528\u8f6f\u4ef6\u6548\u679c\u5668\u7684\u65f6\u5019\uff1b3.\u5f53\u5409\u4ed6\u624b\u9700\u8981\u8ba9\u5409\u4ed6\u4fe1\u53f7\u4ee5\u8f93\u51fa\u5c31\u6210\u4e3a\u4f4e\u963b\u6297\u4fe1\u53f7\uff0c\u4ece\u800c\u4fdd\u8bc1\u97f3\u8272\u7684\u65f6\u5019\uff08\u6bd4\u5982NEIL ZAZA\uff09;4.\u5f53\u5409\u4ed6\u624b\u8fde\u63a5\u7684\u97f3\u54cd\u8bbe\u5907\u4fe1\u53f7\u963b\u6297\u4e0d\u5339\u914d\u7684\u65f6\u5019\u3002DI\u76d2\u548c\u7bb1\u4f53\u6a21\u62df\u7684\u533a\u522b\uff1a\u5728\u666e\u901a\u7528\u6237\u7fa4\u4f53\u4e2d\u6709\u5927\u90e8\u5206\u4eba\u666e\u904d\u8bef\u8ba4\u4e3aDI\u548c\u7bb1\u4f53\u6a21\u62df\u662f\u4e00\u79cd\u4e1c\u897f\uff0c\u6240\u4ee5\u76f2\u76ee\u5730\u8d2d\u4e70\u4e86\u9519\u8bef\u7684\u8bbe\u5907\u5bfc\u81f4\u53d1\u51fa\u9519\u8bef\u7684\u97f3\u8272\uff0c\u8fdb\u4e00\u6b65\u5bfc\u81f4\u4e86\u5bf9\u8fd9\u7c7b\u4ea7\u54c1\u7684\u9519\u8bef\u8ba4\u8bc6\u3002DI\u53ea\u662f\u4e3a\u4e86\u8ba9\u4e50\u5668\u8fde\u63a5PA\u7cfb\u7edf\u6765\u5e73\u8861\u5b83\u4eec\u9ad8\u963b\u6297\u8f93\u51fa\uff0c\u8ba9PA\u7cfb\u7edf\u6b63\u5e38\u5de5\u4f5c\u7684\uff1b\u800c\u7bb1\u4f53\u6a21\u62df\u4ec5\u4ec5\u662f\u6a21\u62df\u7bb1\u4f53\u7684\uff0c\u4e24\u8005\u529f\u80fd\u4e0d\u4e00\u6837\uff0c\u4e00\u822c\u9700\u8981\u5409\u4ed6\u76f4\u63a5\u8fde\u63a5\u6548\u679c\u5668\/\u524d\u7ea7\u8bbe\u5907\u6216\u8005\u76f4\u63a5\u8fde\u63a5\u5206\u4f53\u97f3\u7bb1\u7bb1\u5934\uff0c\u518d\u76f4\u63a5\u8fde\u63a5\u8fdb\u5165\u8c03\u97f3\u53f0\u6216\u8005\u7535\u8111\u8fdb\u884c\u5f55\u97f3\u7684\u65f6\u5019\uff0c\u7bb1\u4f53\u6a21\u62df\u5668\u624d\u662f\u9700\u8981\u7684\u8bbe\u5907\u3002\uff08\u5c31\u50cf\u662f\u4e00\u53f0\u5206\u4f53\u97f3\u7bb1\uff0c\u8981\u7531\u7bb1\u5934\u548c\u7bb1\u4f53\u642d\u914d\u624d\u80fd\u53d1\u51fa\u6b63\u5e38\u7684\u58f0\u97f3\uff0c\u5728\u6ca1\u6709\u5409\u4ed6\u97f3\u7bb1\u4e13\u7528\u7bb1\u4f53\u7684\u65f6\u5019\u53ef\u4ee5\u4f7f\u7528\u7bb1\u4f53\u6a21\u62df\u5668\u6765\u8fde\u63a5\u975e\u5409\u4ed6\u97f3\u7bb1\u4e13\u7528\u7bb1\u4f53\u6765\u83b7\u5f97\u6b63\u5e38\u7684\u58f0\u97f3\u3002\uff09PDI-1G\u7684\u529f\u80fd\u7279\u70b9\uff1a1.\u5b83\u867d\u7136\u662fDI\u76d2\uff0c\u4f46\u662f\u5e26\u6709\u5409\u4ed6\u7bb1\u4f53\u6a21\u62df\u529f\u80fd\uff0c\u5409\u4ed6\u901a\u8fc7PDI-1G\u80fd\u76f4\u63a5\u5165\u8c03\u97f3\u53f0\u8fdb\u884c\u6f14\u51fa\u548c\u5f55\u97f3\uff1b2.PDI-1G\u9664\u4e86\u5916\u89c2\u5c0f\u5de7\u800c\u4e14\u575a\u56fa\uff0c\u65b9\u4fbf\u643a\u5e26\u4e4b\u5916\u8fd8\u6709Ground lift\u5f00\u5173\u6d88\u9664\u5730\u73af\u5f0f\u566a\u97f33.PDI-1G DI\u76d2\u5e76\u4e0d\u4ec5\u4ec5\u9650\u4e8e\u5409\u4ed6\u4f7f\u7528\uff0c\u8fde\u8d1d\u53f8\u67b6\u5b50\u9f13\u952e\u76d8\u7b49\u4e50\u5668\u4e5f\u90fd\u53ef\u4ee5\u4f7f\u7528\uff1b4.\u5b83\u7684PARA OUT\u8f93\u51fa\u8fd8\u5141\u8bb8\u628a\u4f60\u559c\u6b22\u7684\u5409\u4ed6\u7bb1\u5934\u5728\u63a5\u5728\u7bb1\u4f53\u4e0a\u7684\u540c\u65f6\uff0c\u8fd8\u80fd\u628a\u7bb1\u5934\u7684\u97f3\u8272\u76f4\u63a5\u8f93\u8fdb\u8c03\u97f3\u53f0\uff0c\u4e3a\u4f60\u7684\u73b0\u573a\u6f14\u51fa\u548c\u5f55\u97f3\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u65b9\u4fbf\u548c\u53ef\u80fd\u6027\uff01PDI-1G\u9762\u5bf9\u7684\u5ba2\u6237\u7fa4\u4f53\uff1a 1.\u6ca1\u6709\u6b63\u786e\u642d\u914d\u8bbe\u5907\u7684\u8857\u5934\u5356\u5531\u5409\u4ed6\u624b – \u4ed6\u4eec\u7ecf\u5e38\u9047\u5230\u7684\u95ee\u9898\u7684\u5c31\u662f\u5409\u4ed6\u8fde\u63a5\u5356\u5531\u97f3\u54cd\u7684\u65f6\u5019\u5409\u4ed6\u97f3\u91cf\u504f\u5c0f\uff0c\u58f0\u97f3\u6d51\u6d4a\u4e0d\u81ea\u7136\u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u5356\u5531\u97f3\u54cd\u975e\u5409\u4ed6\u4e13\u7528\u97f3\u7bb1\uff0c\u5b58\u5728\u4fe1\u53f7\u963b\u6297\u4e0d\u5339\u914d\u7684\u95ee\u9898\uff0c\u8fd9\u65f6\u5019\u9700\u8981PDI-1G\u6765\u5e73\u8861\u4fe1\u53f7\u963b\u6297\uff0c\u83b7\u5f97\u6b63\u5e38\u7684\u58f0\u97f3\uff0c.2.\u5728\u5bb6\u8fde\u63a5\u7535\u8111\u58f0\u5361\u7528\u8f6f\u4ef6\u6548\u679c\u5668\u5f55\u97f3\u7684\u5409\u4ed6\u624b \u2013 \u8fd8\u662f\u4fe1\u53f7\u963b\u6297\u5339\u914d\u7684\u4e8b(\u5ef6\u8fdf\u548c\u97f3\u91cf\u5c0f\u7684\u95ee\u9898)3.\u5bf9\u97f3\u8272\u6709\u4e00\u5b9a\u8ffd\u6c42\u4f46\u662f\u8bbe\u5907\u8ddf\u4e0d\u4e0a\u7684\u5409\u4ed6\u624b \u2013 \u548c\u8857\u5934\u5356\u5531\u5409\u4ed6\u624b\u7684\u6848\u4f8b\u4e00\u6837\uff0c\u8fd9\u7c7b\u5409\u4ed6\u624b\u4e5f\u662f\u8bbe\u5907\u642d\u914d\u9519\u8bef\u7684\u95ee\u9898\uff0c\u901a\u5e38\u4f34\u968f\u4e1a\u4f59\u4e50\u961f\u51fa\u73b0\u3002\u4ed6\u4eec\u7ecf\u5e38\u4f1a\u628a\u6240\u6709\u4e50\u5668\u8fde\u63a5\u5230\u8c03\u97f3\u53f0\u518d\u7531\u821e\u53f0\u97f3\u54cd\u6269\u97f3\uff0c\u751a\u81f3\u6709\u4e00\u4e9b\u8d1d\u65af\u624b\u628a\u4ed6\u4eec\u7684\u8d1d\u65af\u63a5\u5728\u5409\u4ed6\u97f3\u7bb1\u4e0a\u30024.\u5bf9\u97f3\u8272\u6709\u6781\u9ad8\u8981\u6c42\u7684\u5409\u4ed6\u624b\u3002\u5f53\u7136\uff0c\u8fd8\u6709\u5f88\u591a\u9700\u8981PDI-1G\u8fd9\u7c7b\u4ea7\u54c1\u7684\u5409\u4ed6\u624b.\u5982\u679c\u8fd8\u662f\u4e0d\u5927\u660e\u767dDI\u76d2\u7684\u4f5c\u7528\uff0c\u90a3\u4e48\u518d\u6253\u4e2a\u6bd4\u65b9\u8bf4\u4e00\u4e0b\uff1a\u5047\u5982\u4f60\u7684\u624b\u4e0a\u6709\u4e00\u4e2a\u5927\u6c64\u52fa\uff0c\u4f60\u9700\u8981\u7528\u8fd9\u4e2a\u6c64\u52fa\u628a\u6c34\u76db\u8fdb\u4e00\u4e2a\u74f6\u5b50\u91cc\uff0c\u4f46\u662f\u74f6\u5b50\u7684\u74f6\u53e3\u6bd4\u8f83\u5c0f\uff0c\u5f53\u4f60\u76db\u6ee1\u4e00\u52fa\u6c34\u518d\u4ece\u5c0f\u5c0f\u7684\u74f6\u53e3\u5012\u8fdb\u53bb\u7684\u65f6\u5019\uff0c\u53ea\u6709\u5c11\u91cf\u7684\u6c34\u4f1a\u8fdb\u5165\u74f6\u5b50\uff0c\u5176\u4ed6\u7684\u4f1a\u5728\u74f6\u53e3\u8fb9\u7f18\u6ea2\u51fa\uff0c\u5f88\u96be\u5168\u90e8\u5012\u8fdb\u74f6\u5b50\uff0c\u4ece\u800c\u635f\u5931\u4e86\u4e00\u4e9b\u6c34\u3002\u540c\u6837\u7684\u9053\u7406\uff0c\u5409\u4ed6\/\u6548\u679c\u5668\u8f93\u51fa\u7684\u9ad8\u963b\u6297\u4fe1\u53f7\u5c31\u50cf\u662f\u6c64\u52fa\uff0c\u74f6\u5b50\u5c31\u76f8\u5f53\u4e8ePA\u7684\u8c03\u97f3\u53f0\uff0c\u6c34\u53ef\u4ee5\u770b\u4f5c\u662f\u4fe1\u53f7\uff0c\u9ad8\u963b\u6297\u7684\u8f93\u51fa\u8fdb\u5165\u4f4e\u963b\u6297\u7684\u8f93\u5165\u5f88\u5bb9\u6613\u9020\u6210\u4fe1\u53f7\u635f\u5931\u3002\u4f46\u662f\u5728\u8fd9\u4e2a\u74f6\u5b50\u7684\u53e3\u4e0a\u52a0\u4e00\u4e2a\u6f0f\u6597\u7684\u8bdd\uff0c\u6c34\u5c31\u80fd\u6ee1\u6ee1\u5730\u5012\u8fdb\u53bb\u4e86\uff0c\u5bf9DI\u76d2\u5c31\u662f\u8fd9\u4e2a\u6f0f\u6597\uff0c\u6539\u53d8\u5409\u4ed6\/\u6548\u679c\u5668\u7684\u975e\u5e73\u8861\u9ad8\u963b\u6297\u7684\u58f0\u97f3\u6210\u4e3a\u5e73\u8861\u4f4e\u963b\u6297\u5b8c\u6574\u5730\u8fdb\u5165PA\uff0c\u907f\u514d\u4fe1\u53f7\u635f\u5931\u3002\u5b9e\u9645\u529f\u80fd\u64cd\u4f5c\u8bb2\u89e3\uff1a1.POWER\uff1a\u5f00\u542f\/\u5173\u95ed\u8bbe\u5907\u7684\u7535\u6e902.Grond Lift\u6309\u94ae\uff1a\u6b63\u5e38\u60c5\u51b5\u4e0b\u6309\u8d77\u6765\u5373\u53ef\uff0c\u5982\u679c\u6709\u7531\u4e8e\u5730\u73af\u56de\u8def\u539f\u56e0\u5bfc\u81f4\u7684\u566a\u97f3\u6216\u8005\u4ea4\u6d41\u58f0\u53ef\u4ee5\u6309\u4e0b\u8fd9\u4e2a\u94ae\u6765\u89e3\u51b3\u95ee\u98983.attenuation\u9009\u62e9\u5f00\u5173\uff1a\u6839\u636e\u4ecb\u5165\u8bbe\u5907\u7684\u578b\u53f7\u4e0d\u540c\u8bbe\u5b9a\u6b21\u5f00\u5173\u7684\u4f4d\u7f6e0dB\uff1a\u8fde\u63a5\u5e38\u89c4\u7684\u7535\u5409\u4ed6\uff0c\u7535\u8d1d\u53f8\uff0c\u952e\u76d8\u8bbe\u5907-20dB:\u8fde\u63a5\u4e13\u4e1a\u97f3\u9891\u8bbe\u5907\uff08\u8f93\u51fa\u7535\u5e73\u989d\u5b9a\u503c\u5728+4dBm\uff09-40dB:\u5409\u4ed6\u529f\u7387\u653e\u5927\u5668\u7684\u5587\u53ed\u8f93\u51fa\u63a5\u53e3\u6ce8\u610f\uff1a\u5982\u679c\u4f7f\u7528\u5587\u53ed\u4f5c\u4e3a\u4fe1\u53f7\u8f93\u51fa\uff0c\u5fc5\u987b\u8fde\u63a5\u5587\u53ed\u7bb1\u4f53\u5230PARAOUT\u63a5\u53e34.INPUT:\u63a5\u5409\u4ed6\u3001\u6548\u679c\u5668\u3001\u97f3\u7bb1\u3001\u529f\u653e\u7b49\u4fe1\u53f7\u6e90\u76845.PARA OUT\u63a5\u53e3\uff1a\u5c06\u4eceINPUT\u63a5\u53e3\u8f93\u5165\u7684\u4fe1\u53f7\u76f4\u63a5\u8f93\u51fa\u5230\u5176\u4ed6\u8bbe\u59076.\u5409\u4ed6\u7bb1\u4f53\u6a21\u62df\u5f00\u5173\uff1aOFF\u6863\u4f4d\u5173\u95ed\u6a21\u62df\uff0cOPEN\u4e3a\u6a21\u4eff\u5f00\u653e\u5f0f\u7bb1\u4f53\uff0cCLOSED\u4e3a\u6a21\u4eff\u5c01\u95ed\u5f0f\u7bb1\u4f53\u5f00\u653e\u5f0f\u7bb1\u4f53\uff1a\u653e\u5f0f\u7bb1\u4f53\u7684\u8bbe\u8ba1\uff0c\u4f7f\u5f97\u4f4e\u9891\u80fd\u591f\u66f4\u987a\u7545\u5730\u4f20\u64ad\u51fa\u53bb\u3002\u56e0\u4e3a\u6b64\u65f6\u7bb1\u4f53\u4e2d\u7a7a\u6c14\u7684\u9707\u52a8\u5df2\u7ecf\u6ca1\u6709\u80cc\u677f\u7684\u963b\u788d\u4e86\u3002\u8fd9\u4e5f\u5c31\u4f7f\u5f97\u6700\u7ec8\u7684\u97f3\u8272\u7ebf\u6761\u66f4\u6e05\u6670\uff0c\u68f1\u89d2\u66f4\u5206\u660e\uff0c\u542c\u4e0a\u53bb\u66f4\u76f4\u63a5\uff0c\u7a7a\u95f4\u611f\u4e5f\u4f1a\u66f4\u5f3a\u3002\u5bf9\u4e8e\u5409\u4ed6\u97f3\u7bb1\u800c\u8a00\uff0c\u5f00\u653e\u5f0f\u7684\u7bb1\u4f53\u6240\u80fd\u63d0\u4f9b\u7684\u7acb\u4f53\u611f\uff0c\u5728\u6e05\u97f3\u548c\u8fc7\u8f7d\u97f3\u8272\u7684\u65f6\u5019\u80fd\u591f\u4f53\u73b0\u7684\u66f4\u597d\uff0c\u8fd9\u4fbf\u662f\u5b83\u7684\u5148\u5929\u4f18\u52bf\u3002\u8fd9\u4e5f\u5c31\u662f\u4e3a\u4ec0\u4e48\u5f88\u591a\u5584\u4e8e\u6f14\u594fLow Gain\u97f3\u8272\u7684\u4e50\u624b\u70ed\u8877\u4e8e\u8fd9\u7c7b\u97f3\u7bb1\u7684\u539f\u56e0\u3002\u5c01\u95ed\u5f0f\u7bb1\u4f53\uff1a\u76f8\u5bf9\u4e8e\u80cc\u677f\u5f00\u653e\u5f0f\u7684\u7bb1\u4f53\u800c\u8a00\uff0c\u80cc\u677f\u5c01\u95ed\u5f0f\u7684\u7bb1\u4f53\u80fd\u591f\u66f4\u76f4\u63a5\u7684\u4f20\u9012\u58f0\u97f3\u5e76\u4e14\u97f3\u8272\u4e2d\u7684\u4f4e\u9891\u66f4\u4e30\u5bcc\u4e00\u4e9b\u3002\u7531\u4e8e\u5c01\u95ed\u5f0f\u7684\u80cc\u677f\u8bbe\u8ba1\uff0c\u58f0\u97f3\u4fe1\u53f7\u80fd\u591f\u88ab\u5f88\u597d\u7684\u805a\u96c6\u8d77\u6765\u4ece\u800c\u901a\u8fc7\u5587\u53ed\u653e\u5c04\u51fa\u53bb\u3002\u5728\u8d1d\u53f8\u97f3\u7bb1\u7684\u8303\u7574\uff0c\u56e0\u4e3a\u5b83\u4eec\u8ffd\u6c42\u66f4\u591a\u7684\u4f4e\u9891\uff0c\u6240\u4ee5\u80cc\u677f\u5c01\u95ed\u5f0f\u7ed3\u6784\u66f4\u53d7\u504f\u7231\u3002\u4f46\u662f\u5c01\u95ed\u7bb1\u4f53\u4e5f\u6709\u4e0d\u8db3\u7684\u5730\u65b9\uff0c\u6bd4\u5982\u8bf4\u5728\u6bd4\u8f83\u72ed\u7a84\u7684\u821e\u53f0\u4e0a\u6f14\u51fa\u7684\u65f6\u5019\uff0c\u7531\u4e8e\u573a\u5730\u6bd4\u8f83\u5c0f\uff0c\u4e5f\u5c31\u65e0\u6cd5\u4f7f\u7528\u76d1\u542c\u97f3\u7bb1\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5409\u4ed6\u624b\u7ad9\u5728\u97f3\u7bb1\u524d\u9762\u6f14\u594f\uff0c\u80fd\u591f\u5f88\u597d\u7684\u542c\u5230\u81ea\u5df1\u7684\u58f0\u97f3\uff0c\u800c\u6b64\u65f6\u9f13\u624b\u548c\u5176\u4ed6\u4e50\u624b\u5f80\u5f80\u53ea\u80fd\u591f\u542c\u5230\u5409\u4ed6\u6a21\u7cca\u4e00\u7247\u7684\u58f0\u97f3\uff0c\u66f4\u7cdf\u7cd5\u7684\u65f6\u5019\u751a\u81f3\u8fde\u97f3\u8c03\u90fd\u542c\u4e0d\u51fa\u6765\u4e86\u3002PDI-2\u53d8\u538b\u5668\u9694\u79bbDI\u76d2\u5b83\u7684\u529f\u80fd\u6bd4PDI-1G\u66f4\u5b8c\u7f8e\uff0cPDI-1G\u662f\u4e00\u5757\u5e26\u7bb1\u4f53\u6a21\u62df\u529f\u80fd\u7684\u4e3b\u52a8DI\u76d2\uff0c\u800cPDI-2\u5728PDI-1G\u7684\u529f\u80fd\u57fa\u7840\u4e0a\uff0c\u662f\u53ef\u4ee5\u4e3b\u52a8\u88ab\u52a8\u6a21\u5f0f\u5207\u6362\u7684\uff0c\u5207\u5230\u88ab\u52a8\u6a21\u5f0f\u65f6\u5019\u65e0\u9700\u7535\u6e90\u4e5f\u53ef\u4ee5\u5de5\u4f5c\u3002PID-2\u7684MOD\u6a21\u5f0f\u9009\u62e9\u5f00\u5173\u53ef\u4ee5\u6839\u636e\u4fe1\u53f7\u6e90\u7684\u4e0d\u540c\u9009\u62e9\u4e0d\u540c\u7684\u6a21\u5f0f\u6216\u8005\u9759\u97f3\u3002ACT(\u4e3b\u52a8)\u6a21\u5f0f\uff1a\u53ef\u4ee5\u8fde\u63a5\u7535\u5409\u4ed6\uff0c\u7535\u8d1d\u53f8\u7b49\u9ad8\u963b\u6297\u4fe1\u53f7\u6e90\u3002\u5728\u4e3b\u52a8\u6a21\u5f0f\u4e0b\u5fc5\u987b\u63d0\u4f9b\u5916\u90e8\u7684\u7535\u6e90\u4f9b\u7535\u624d\u80fd\u5de5\u4f5c\u3002MUTE(\u9759\u97f3)\u6a21\u5f0f\uff1a\u5728\u9759\u97f3\u6a21\u5f0f\u4e0bPDI-2\u505c\u6b62\u8f93\u51fa\u4fe1\u53f7\u3002\uff08\u4eba\u5728\u79bb\u5f00\u7684\u65f6\u5019\u53ef\u4ee5\u5207\u5230\u9759\u97f3\u6a21\u5f0f\uff0c\u4e0d\u7528\u518d\u5728\u5176\u4ed6\u8bbe\u5907\u4e0a\u4fee\u6539\uff09PAS(\u88ab\u52a8\u6a21\u5f0f)\uff1a\u8fd9\u4e2a\u6a21\u5f0f\u53ef\u4ee5\u8fde\u63a5\u952e\u76d8\u6216\u8005\u63d2\u5165\u5230\u5587\u53ed\u548c\u97f3\u7bb1\u76f4\u63a5\u6c72\u53d6\u4fe1\u53f7\uff0c\u5e76\u4e14\u65e0\u9700\u7535\u6e90\u4e5f\u53ef\u4ee5\u5de5\u4f5c\uff01\u53e6\u5916\u914d\u7f6e\u4e86Blance out\u5e73\u8861\u8f93\u51fa\u63a5\u53e3\u548cUnbalance out\u975e\u5e73\u8861\u8f93\u51fa\u63a5\u53e3\uff0c\u4fe1\u53f7\u7ecf\u8fc7\u7f13\u51b2\u5668\u548c\u8870\u51cf\u5668\u540e\u8f93\u51fa\u5230unbalance out\u975e\u5e73\u8861\u8f93\u51fa\u63a5\u53e3\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[51],"tags":[],"_links":{"self":[{"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=\/wp\/v2\/posts\/15922"}],"collection":[{"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=15922"}],"version-history":[{"count":0,"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=\/wp\/v2\/posts\/15922\/revisions"}],"wp:attachment":[{"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15922"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15922"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.GuitarsChina.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}