{"title":"400 MHz系统设计","authors":"Bert Arnold","doi":"10.1109/TCATV.1980.285832","DOIUrl":null,"url":null,"abstract":"Alternative approaches to headend arrangements in designing 400 MHz cable systems are presented. The trade-offs between coherent and non-coherent headends are discussed and the operating output level of distribution amplifiers (bridgers and line extenders) is shown to be a critical parameter in designing a 400 MHz system to meet performance and operating margins that are comparable to presently operating 300 MHz cable systems.","PeriodicalId":100638,"journal":{"name":"IEEE Transactions on Cable Television","volume":"CATV-5 1","pages":"23-24"},"PeriodicalIF":0.0000,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TCATV.1980.285832","citationCount":"0","resultStr":"{\"title\":\"400 MHz System Design\",\"authors\":\"Bert Arnold\",\"doi\":\"10.1109/TCATV.1980.285832\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Alternative approaches to headend arrangements in designing 400 MHz cable systems are presented. The trade-offs between coherent and non-coherent headends are discussed and the operating output level of distribution amplifiers (bridgers and line extenders) is shown to be a critical parameter in designing a 400 MHz system to meet performance and operating margins that are comparable to presently operating 300 MHz cable systems.\",\"PeriodicalId\":100638,\"journal\":{\"name\":\"IEEE Transactions on Cable Television\",\"volume\":\"CATV-5 1\",\"pages\":\"23-24\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1980-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1109/TCATV.1980.285832\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Cable Television\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/4065166/\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Cable Television","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/4065166/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Alternative approaches to headend arrangements in designing 400 MHz cable systems are presented. The trade-offs between coherent and non-coherent headends are discussed and the operating output level of distribution amplifiers (bridgers and line extenders) is shown to be a critical parameter in designing a 400 MHz system to meet performance and operating margins that are comparable to presently operating 300 MHz cable systems.
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