| Noise and Interference in Two Way CATV |
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| 引用本文： | ZENG Xi hu,ZHOU Jian. Noise and Interference in Two Way CATV[J]. 保鲜与加工, 2001, 0(5): 55-58 |
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| 作者姓名： | ZENG Xi hu ZHOU Jian |
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| 摘 要： | The funneling effect of noise is the main difficulty in two way CATV modification works. This paper discusses the source of noise and interference, the mechanism to form noise funneling, the regularities of distribution, the characteristics of the spectrum, etc. The purpose is to find the way of reducing funnel noise. The invading noise has the greatest effect on the upstream of two way CATV system, which mainly comes from the indoor of the users. The increase of the number of cable modem will not obviously make greater funneling noise. The cable connectors are the main source of producing and invading noise in outdoor cable network, which is a threat to the safty of the whole upstream channel.
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| 关 键 词： | Funnel noise CATV Cable Modem |
| 修稿时间： | 2001-05-25 |
Noise and Interference in Two Way CATV |
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| ZENG Xi hu,ZHOU Jian. Noise and Interference in Two Way CATV[J]. Storage & Process, 2001, 0(5): 55-58 |
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| Authors: | ZENG Xi hu ZHOU Jian |
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| Abstract: | The funneling effect of noise is the main difficulty in two way CATV modification works. This paper discusses the source of noise and interference, the mechanism to form noise funneling, the regularities of distribution, the characteristics of the spectrum, etc. The purpose is to find the way of reducing funnel noise. The invading noise has the greatest effect on the upstream of two way CATV system, which mainly comes from the indoor of the users. The increase of the number of cable modem will not obviously make greater funneling noise. The cable connectors are the main source of producing and invading noise in outdoor cable network, which is a threat to the safty of the whole upstream channel. |
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| Keywords: | Funnel noise CATV Cable Modem |
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