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Technicians Handbook - Historic Naval Ships Association

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Table 1-14.—BNC Series Connectors with Associated CablesPlug Jack Panel Jack For Use With Cable TypesImproved Version:UG-88E/U UG-89C/U UG-291C/U RG-55/U, 58/U and 223/UUG-260D/U UG-261C/U UG-262C/U RG-59/U, 62/U and 71/UCaptivated Contact Version (Amphenol):31-301 31-302 31-300 RG-55/U, 58/U, 141/U and 142/U31-304 31-305 31-303 Rg-59/U, 62/U, 71/U and 140/UHN series connectors have a 50-ohm impedance and threaded coupling connectors designed forhigh-voltage applications. These connectors are weatherproof. The frequency range is 0-4 gigahertz. TheHN series is used with medium size coaxial cable such as RG-8/U, RG-9/U, RG-87/U, RG-213/U, RG-214/U, and RG-225/U. Figure 1-27 shows three typical HN connectors. Figure 1-28 shows how HNconnectors are attached to coaxial cable. Table 1-15 indicates which HN connector to use with whatcoaxial cable type.N series connectors are low-voltage, 50-ohm, threaded coupling connectors designed for use withsmall and medium size rf cable. They have a 1,000 volts peak rating and are weatherproof. There is agroup of N series connectors that are 70 ohms and are numbered UG-98A/U and UG-96A/U. These 70-ohm N connectors are designed for cables such as RG-61C, RG-11/U, and RG-13/U. The 70-ohmconnectors will not mate with 50-ohm connectors of this series. Figure 1-29 shows three typical N seriesconnectors. Figure 1-30 illustrates the method used to attach N connectors to coaxial cable. Table 1-16shows which N connector to use with what rf cable type.Figure 1-27.—Typical HN connectors.1-69

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