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电子部23研究所和湖北红旗电缆厂共同研制成功的120路海缆(HHO-4/15),共有五种型号规格,用户可根据实际需要加以选用。其中屏蔽海缆(HHOP-4/15),在多少水深的海区使用?本文拟在这方面做一些分析和探讨。随着海底电缆载波设备容量的增大,海缆载波通信的工作频率不断提高。目前120路海缆载波的线路频谱(60-1300kHz)与无线电导航(10-100kHz)和中波无线电广播频谱(535-1605kttz)部分重叠。当海底电缆线路处在具有一定量级的环境电磁波场中时,空间电磁波就有可能感应到海缆通信回路中,形成同频干扰,引起通话质量的下降。
Electronics Department 23 Institute and Hubei Hongqi Cable Factory jointly developed 120 submarine cable (HHO-4/15), a total of five models specifications, users can choose according to actual needs. Which shielded submarine cable (HHOP-4/15), in the depth of the sea use? This article is intended to do some analysis and discussion in this regard. As the capacity of submarine cable carrier equipment increases, the operating frequency of submarine carrier communication continues to increase. The current 120-line submarine carrier line spectrum (60-1300kHz) partially overlaps the radio navigation (10-100kHz) and the medium-frequency radio broadcast spectrum (535-1605kttz). When the submarine cable line is in the electromagnetic wave field of a certain magnitude, the space electromagnetic wave may be induced into the submarine cable communication loop to form co-channel interference, which may cause the decline of call quality.