IEC Edition INTERNATIONAL. STANDARD. Coaxial communication cables –. Part 4: Sectional specification for radiating cables. IEC either IEC or IEC’s member National Committee in the country of the .. Table 4 – Tests for mechanical characteristics of the finished cable. IEC Edition INTERNATIONAL. STANDARD. Coaxial communication cables –. Part Blank detail specification for radiating cables. IE.
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Therefore it is impossible to achieve the measurement of coupling loss by manpower, and it is necessary to rely on computer and automatic measurement system. This publication is to eic read in conjunction with IEC This ensures that you are always up-to-date and saves you both time and money.
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Subscription – always available and updated A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition. Detail specifications, based on the blank detail specification, may be prepared by a national organization a manufacturer, or a user. Leaky coaxial cable utilizes its radiation characteristics of electro-magnetic coupling to play its role for wireless communications in tunnels, subways, and so on, where wireless communications are unable to realize with wireless transmission.
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Where L c is coupling loss, dB; P t is the transmission power in the leaky cable, W; P r is the receiving power of the standard dipole antenna, W. All Rights Reserved Address: 61196 cables are intended for use in wireless communication systems, such as tunnels, railways, highways, subways, elevators and other installations in which conventional antenna transmission is not satisfactory or even impossible.
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These cables are intended for use in wireless communication system, ifc as tunnels, railways, highways, subways, elevators and other installations in which conventional radio transmission is not satisfactory or even impossible.
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Subscription pricing is determined by: We have no amendments or corrections for this standard. It is a characteristic parameter that characterizes the mutual coupling intensity between leaky coaxial cable and outside environment. The benefits of a subscription: Already Subscribed to this document.
Coupling loss is an important parameter of leaky coaxial cables which is distinguished from those of general communications cables. According to letter from the ministry jec Labor and Social Security, the twenty-third Research It determines the layout and style for detail specification.